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Motif analysis of amphioxus, lamprey and invertebrate estrogen receptors: Toward a better understanding of estrogen receptor evolution

Publication year: 2008
Michael E., Baker , Charlie, Chandsawangbhuwana

The origins of steroid-dependent regulation of the vertebrate estrogen receptor (ER) are poorly understood. We used artificial-intelligence-based software to construct 12 motifs specific to the estrogen-binding domain of ERα and ERβ in land vertebrates and teleosts. We mapped these ER-specific motifs onto the sequences of lamprey, amphioxus, and invertebrate and selected vertebrate ERs and estrogen-related receptors (ERR). Lamprey ER contains 11 motifs common to ERs in the training set. In contrast, amphioxus ER contains only six motifs. Unexpectedly, human and amphioxus ERRs contain nine motifs. We mapped the 12 motifs onto an alignment of human, lamprey and amphioxus ERs, which...

The repertoire of G protein-coupled receptors in the sea-squirt Ciona intestinalis

Background:G protein-coupled receptors (GPCRs) constitute a large family of integral transmembrane receptor proteins that play a central role in signal transduction in eukaryotes. The genome of the protochordate Ciona intestinalis has a compact size with an ancestral complement of many diversified gene families of vertebrates and is a good model system for studying protochordate to vertebrate diversification. An analysis of the Ciona repertoire of GPCRs from a comparative genomic perspective provides insight into the evolutionary origins of the GPCR signalling system in vertebrates.Results:We have identified 169 gene products in the Ciona genome that code for putative GPCRs. Phylogenetic analyses reveal that Ciona GPCRs have homologous representatives from the five major GRAFS (Glutamate, Rhodopsin, Adhesion, Frizzled and Secretin) families concomitant with other vertebrate GPCR repertoires. Nearly 39% of Ciona GPCRs have unambiguous orthologs of vertebrate GPCR families, as defined for the human, mouse, puffer fish and chicken genomes. The Rhodopsin family accounts for ~68% of the Ciona GPCR repertoire wherein the LGR-like subfamily exhibits a lineage specific gene expansion of a group of receptors that possess a novel domain organisation hitherto unobserved in metazoan genomes. Conclusions:Comparison of GPCRs in Ciona to that in human reveals a high level of orthology of a protochordate repertoire with that of vertebrate GPCRs. Our studies suggest that the ascidians contain the basic ancestral complement of vertebrate GPCR genes. This is evident at the subfamily level comparisons since Ciona GPCR sequences are significantly analogous to vertebrate GPCR subfamilies even while exhibiting Ciona specific genes. Our analysis provides a framework to perform future experimental and comparative studies to understand the roles of the ancestral chordate versions of GPCRs that predated the divergence of the urochordates and the vertebrates.

Methyl farnesoate inhibition of late stage ovarian development and fecundity reduction in the black tiger prawn, Penaeus monodon

Publication year: 2008
Gay, Marsden , David, Hewitt , Eric, Boglio , Peter, Mather , Neil, Richardson

Impact of seston characteristics on qualitative particle selection sites and efficiencies in the pseudolamellibranch bivalve Crassostrea gigas

Publication year: 2008
Source: Journal of Experimental Marine Biology and Ecology, In Press, Corrected Proof, Available online 25 April 2008
Peter G., Beninger , Alexandra, Valdizan , Priscilla, Decottignies , Bruno, Cognie

To date, knowledge of the qualitative particle selection sites and conditions in the widely-distributed bivalve Crassostrea gigas is incomplete, having focussed either on heterogeneous particles, or on particles intentionally too large to enter the gill principal filament tracts. We used endoscope-directed sampling and the intact diatom-empty, cleaned frustule approach to unambiguously establish qualitative selection sites and the influence of seston quality (varying proportions of intact diatoms and empty, cleaned frustules) and quantity (particle loads) on the degree of qualitative selection. Normally-feeding oysters were presented test mixtures of the naturally-occurring Actinoptychus senarius (small enough to enter the gill principal filaments), and...

[REPORTS] Mechanism of Self-Sterility in a Hermaphroditic Chordate

The sea squirt prevents self-fertilization with two genetic loci, each of which encodes a tightly linked sperm-egg receptor-ligand pair, a system similar to that of flowering plants.

Authors: Yoshito Harada, Yuhei Takagaki, Masahiko Sunagawa, Takako Saito, Lixy Yamada, Hisaaki Taniguchi, Eiichi Shoguchi, Hitoshi Sawada

Animal Self-Sterility Genes

Self-sterility is widely observed among hermaphroditic plants and animals. Although insights have been made for self-incompatibility systems of plants, relatively little is known about animal mechanisms. Harada et al. (p. … [Read more]

Perception of the steroid hormone 20-hydroxyecdysone modulates agonistic interactions in Homarus americanus

Publication year: 2008
Debra L., Coglianese , Stuart I., Cromarty , G., Kass-Simon

The American lobster, Homarus americanus, becomes more aggressive just before moulting. This increased aggression is accompanied by an increase in the blood and urine titres of the moulting hormone, 20-hydroxyecdysone (20-HE). During combats with conspecifics, lobsters urinate upon each other to signal their aggressive and/or sexual status. We videotaped staged combats between large intermoult nongravid female lobsters exposed to 20-HE, α-ecdysone or artificial sea water (ASW) and small nongravid female lobsters that could not smell. The nephropores of both combatants were plugged to prevent urine-release. Aggressive, defensive and avoidance behaviours were ranked according to aggressiveness in a rank of aggression...

Stomach contents of mass-stranded short-finned pilot whales (Globicephala macrorhynchus) from North Carolina

Marine Mammal Science, Volume 24, Issue 2, Page 290-302, April 2008.
Abstract We examined the stomach contents of 27 short-finned pilot whales (Globicephala macrorhynchus) that mass stranded on the North Carolina coast on 15 January 2005. Eleven whales had prey parts in their forestomachs. We used frequency of occurrence ...

new species; +62 new citations

62 new PubMed citations were retrieved for your search.Click on the search hyperlink below to display the complete search results:

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These PubMed results were generated on 2008/04/21

PubMed, a service of the National Library of Medicine, includes over 15 million citations for biomedical articles back to the 1950's.These citations are from MEDLINE and additional life science journals. PubMed includes links to many sites providing full text articles and other related resources.

TFAP2A Mutations Result in Branchio-Oculo-Facial Syndrome

Publication year: 2008
Jeff M., Milunsky , Tom A., Maher , Geping, Zhao , Amy E., Roberts , Heather J., Stalker , ...

Branchio-oculo-facial syndrome (BOFS) is a rare autosomal-dominant cleft palate-craniofacial disorder with variable expressivity. The major features include cutaneous anomalies (cervical, infra- and/or supra-auricular defects, often with dermal thymus), ocular anomalies, characteristic facial appearance (malformed pinnae, oral clefts), and, less commonly, renal and ectodermal (dental and hair) anomalies. The molecular basis for this disorder is heretofore unknown. We detected a 3.2 Mb deletion by 500K SNP microarray in an affected mother and son with BOFS at chromosome 6p24.3. Candidate genes in this region were selected for sequencing on the basis of their expression patterns and involvement in developmental pathways associated with...

Cohort splitting in bluefish, Pomatomus saltatrix, in the US mid-Atlantic Bight

Fisheries Oceanography, Volume 17, Issue 3, Page 191-205, May 2008.
AbstractAtlantic bluefish exhibit cohort splitting, whereby two modes of juvenile recruits originate from spatially distinct spring- and summer-spawning regions in US Atlantic shelf waters. We evaluate the pattern of cohort splitting in a transition area (...

Effects of dredging on benthic diatom assemblages in a lowland stream

Publication year: 2008
Source: Journal of Environmental Management, In Press, Corrected Proof, Available online 16 April 2008
Magdalena, Licursi , Nora, Gómez

The objective of this study was to assess the effects of dredging on the structure and composition of diatom assemblages from a lowland stream and to investigate whether the response of diatom assemblages to the dredging is also influenced by different water quality. Three sampling sites were established in Rodríguez Stream (Argentina); physico-chemical variables and benthic diatom assemblages were sampled weekly in spring 2001. Species composition, cell density, diversity and evenness were estimated. Diatom tolerance to organic pollution and eutrophication were also analyzed. Differences in physico-chemical variables and changes in benthic diatom assemblages were compared between the pre- and post-dredging...

Localization of anti-lipopolysaccharide factor (ALFPm3) in tissues of the black tiger shrimp, Penaeus monodon, and characterization of its binding properties

Publication year: 2008
Source: Developmental & Comparative Immunology, In Press, Uncorrected Proof, Available online 16 April 2008
Kunlaya, Somboonwiwat , Evelyne, Bachère , Vichien, Rimphanitchayakit , Anchalee, Tassanakajon

Anti-lipopolysaccharide factor (ALF) is an antimicrobial peptide originally identified from horseshoe crabs and recently found in several shrimp species. ALFPm3, the most abundant isoform in the black tiger shrimp, Penaeus monodon, has been shown to possess a broad spectrum of antimicrobial activity against Gram-negative and Gram-positive bacteria, and filamentous fungi. In this study, a potential role for ALFPm3 in the shrimp innate immunity was revealed by examining the distribution of the protein in shrimp tissues in response to Vibrio harveyi challenge. Immunohistochemistry using anti-ALFPm3 antibody showed that the ALFPm3 protein is primarily localized in hemocytes and the positive cells observed...

MAP kinase: It’s been longer than fifteen minutes

Thomas W., Sturgill

The review highlights evidence for different functions in the cell cycle of the two MAP kinase kinases, MEK1 and MEK2, and the two MAP kinases, ERK1 and ERK2. Functional differences may explain why instances of cell cycle arrest can be MEK1 or MEK2 dependent.

Contamination of marine biogenic habitats and effects upon associated epifauna

Source: Marine Pollution Bulletin, In Press, Corrected Proof, Available online 10 April 2008
David A., Roberts , Emma L., Johnston , Alistair G.B., Poore

Habitat-forming organisms are frequently used as biomonitors in marine environments due to a widespread ability to accumulate toxic contaminants. Few studies, however, have considered the consequences of these accumulated contaminants on the abundant and diverse fauna associated with these habitats. In this review, we summarize research which has investigated the contamination of biogenic habitats (including seagrasses, macroalgae, ascidians, sponges and bivalve reefs) and the impact of this contamination on the habitat use, feeding behaviour and survival of associated epifauna. In many cases, ecological impacts upon epifauna are not simply predicted by levels of contamination in their habitat, but are determined...

Effects of 4-nonylphenol exposure in mussels (Mytilus galloprovincialis) and crabs (Carcinus aestuarii) with particular emphasis on vitellogenin induction

Source: Marine Pollution Bulletin, In Press, Corrected Proof, Available online 8 April 2008
Francesco, Ricciardi , Valerio, Matozzo , Maria Gabriella, Marin

Since it is often difficult to estimate possible adverse effects due to contamination in selected ecosystems, multi-species biomonitoring may provide more information, taking into account different routes of exposure, ecological roles and metabolic capabilities of animals. In this context, we exposed for 7 days the mussel Mytilus galloprovincialis and the crab Carcinus aestuarii to 4-nonylphenol (NP), a well-known xenoestrogen. In mussels (0–0.2 mg NP l−1), we measured NP bioaccumulation in soft tissues and vitellogenin (Vg)-like protein levels in digestive glands from both males and females by the alkali-labile phosphate assay (ALP). As no reference data were available for crab exposure, the...

Evolution of pharmacologic specificity in the pregnane X receptor

Background:The pregnane X receptor (PXR) shows the highest degree of cross-species sequence diversity of any of the vertebrate nuclear hormone receptors. In this study, we determined the pharmacophores for activation of human, mouse, rat, rabbit, chicken, and zebrafish PXRs, using a common set of sixteen ligands. In addition, we compared in detail the selectivity of human and zebrafish PXRs for steroidal compounds and xenobiotics. The ligand activation properties of the Western clawed frog (Xenopus tropicalis) PXR and that of a putative vitamin D receptor (VDR) / PXR cloned in this study from the chordate invertebrate sea squirt (Ciona intestinalis) were also investigated.Results:Using a common set of ligands, human, mouse, and rat PXRs share structurally similar pharmacophores consisting of hydrophobic features and widely spaced excluded volumes indicative of large binding pockets. Zebrafish PXR has the most sterically constrained pharmacophore of the PXRs analyzed, suggesting a smaller ligand-binding pocket than the other PXRs. Chicken PXR possesses a symmetrical pharmacophore with four hydrophobes, a hydrogen bond acceptor, as well as excluded volumes. Comparison of human and zebrafish PXRs for a wide range of possible activators revealed that zebrafish PXR is activated by a subset of human PXR agonists. The Ciona VDR/PXR showed low sequence identity to vertebrate VDRs and PXRs in the ligand-binding domain and was preferentially activated by planar xenobiotics including 6-formylindolo-[3,2-b]carbazole. Lastly, the Western clawed frog (Xenopus tropicalis) PXR was insensitive to vitamins and steroidal compounds and was activated only by benzoates.Conclusions:In contrast to other nuclear hormone receptors, PXRs show significant differences in ligand specificity across species. By pharmacophore analysis, certain PXRs share similar features such as human, mouse, and rat PXRs, suggesting overlap of function and perhaps common evolutionary forces. The Western clawed frog PXR, like that described for African clawed frog PXRs, has diverged considerably in ligand selectivity from fish, bird, and mammalian PXRs.

Gene regulatory networks in the early ascidian embryo

Yutaka, Satou , Nori, Satoh , Kaoru S., Imai

Can bivalve veligers escape feeding currents of adult bivalves?

Source: Journal of Experimental Marine Biology and Ecology, Volume 358, Issue 2, 18 April 2008, Pages 185-196
Karin, Troost , Ronald, Veldhuizen , Eize J., Stamhuis , Wim J., Wolff

While the stock of introduced Pacific oysters (Crassostrea gigas) increased in the Oosterschelde estuary (SW Netherlands), so did the filtration pressure of all bivalve species together. In the same period, stocks of native bivalves declined slightly. The expansion of Pacific oysters in Dutch estuaries might be partially due to better abilities of their larvae to avoid or escape filtration, compared to larvae of native bivalves. In this context, escape and swimming abilities of Pacific oyster larvae and the larvae of the native blue mussel (Mytilus edulis) were compared.Swimming behaviour of C. gigas larvae and larvae of M. edulis was recorded...

Urinary uromodulin carries an intact ZP domain generated by a conserved C-terminal proteolytic cleavage

Sara, Santambrogio , Angela, Cattaneo , Ilenia, Bernascone , Thomas, Schwend , Luca, Jovine , ...

Uromodulin (or Tamm–Horsfall protein) is the most abundant protein in human urine under physiological conditions. Little is known about the molecular mechanism of uromodulin secretion. By extensive Mass Spectrometry analyses we mapped the C-termini of human and murine urinary proteins demonstrating that urinary uromodulin is generated by a conserved C-terminal proteolytic cleavage and retains its entire ZP domain.

Novel genes involved in canonical Wnt/-catenin signaling pathway in early Ciona intestinalis embryos

Stable Isotope and Sr/Ca Profiles From the Marine Gastropod Conus ermineus: Testing a Multiproxy Approach For Inferring Paleotemperature and Paleosalinity

Linking spatial metrics and fish catch reveals the importance of coastal wetland connectivity to inshore fisheries in Queensland, Australia

Source: Biological Conservation, In Press, Corrected Proof, Available online 14 March 2008
J.-O., Meynecke , S.Y., Lee , N.C., Duke

Many commercially important fish species use coastal marine environments such as mangroves, tidal flats and seagrass beds as nurseries or breeding grounds. The ecological importance of spatially connected habitats to conservation is well established for terrestrial environments. However, few studies have applied spatial metrics, including measures of structural connectivity to marine environments. We examined the relationship between catch-per-unit-effort for commercially caught species and the spatial patterning of mapped benthic habitat types along the coast of Queensland, Australia in their dominant fisheries (trawl, line, net or pot fisheries). We quantified the composition and spatial configuration of seascapes and calculated coastline length,...

Mass spectral characterization of peptide transmitters/hormones in the nervous system and neuroendocrine organs of the American lobster Homarus americanus.

Mass spectral characterization of peptide transmitters/hormones in the nervous system and neuroendocrine organs of the American lobster Homarus americanus.

Gen Comp Endocrinol. 2008 Jan 26;

Authors: Ma M, Chen R, Sousa GL, Bors EK, Kwiatkowski MA, Goiney CC, Goy MF, Christie AE, Li L

The American lobster Homarus americanus is a decapod crustacean with both high economic and scientific importance. To facilitate physiological investigations of peptide transmitter/hormone function in this species, we have used matrix-assisted laser desorption/ionization Fourier transform mass spectrometry (MALDI-FTMS), matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and nanoscale liquid chromatography coupled to electrospray ionization quadrupole time-of-flight tandem mass spectrometry (nanoLC-ESI-Q-TOF MS/MS) to elucidate the peptidome present in its nervous system and neuroendocrine organs. In total, 84 peptides were identified, including 27 previously known H. americanus peptides (e.g., VYRKPPFNGSIFamide [Val(1)-SIFamide]), 23 peptides characterized previously from other decapods, but new to the American lobster (e.g., pQTFQYSRGWTNamide [Arg(7)-corazonin]), and 34 new peptides de novo sequenced/detected for the first time in this study. Of particular note are a novel B-type allatostatin (TNWNKFQGSWamide) and several novel FMRFamide-related peptides, including an unsulfated analog of sulfakinin (GGGEYDDYGHLRFamide), two myosuppressins (QDLDHVFLRFamide and pQDLDHVFLRFamide), and a collection of short neuropeptide F isoforms (e.g., DTSTPALRLRFamide and FEPSLRLRFamide). Our data also include the first detection of multiple tachykinin-related peptides in a non-brachyuran decapod, as well as the identification of potential individual-specific variants of orcokinin and orcomyotropin-related peptide. Taken collectively, our results not only expand greatly the number of known H. americanus neuropeptides, but also provide a framework for future studies on the physiological roles played by these molecules in this commercially and scientifically important species.

PMID: 18304551 [PubMed - as supplied by publisher]

Temperature-induced oviposition in the brachyuran crab Cancer setosus along a latitudinal cline: Aquaria experiments and analysis of field-data

Source: Journal of Experimental Marine Biology and Ecology, In Press, Corrected Proof, Available online 21 February 2008
Sönke, Fischer , Sven, Thatje

Ovigerous females of Cancer setosus are present year-round throughout most of its wide range along the Peruvian/Chilean Pacific coast (2°S–46°S). However, their number of egg-masses produced per year remains speculative and as such has neither been considered in latitudinal comparisons of reproduction, nor for its fisheries management. In order to reveal the effect of temperature on egg-mass production and egg-development, female C. setosus were held in through-flow aquaria under natural seasonal temperature conditions (16–23 °C) in Antofagasta (23°S), Northern Chile (05/2005–03/2006; 10 months), and at three constant temperatures (12, 16, 19 °C) in Puerto Montt (41°S), Central Southern Chile (09/2006–02/2007; 5 months). Female crabs...

d-Erythroascorbic acid activates cyanide-resistant respiration in Candida albicans

Won-Ki, Huh , Yong Bhum, Song , Young-Seok, Lee , Cheol Woong, Ha , Seong-Tae, Kim , ...

Higher plants, protists and fungi possess cyanide-resistant respiratory pathway, which is mediated by alternative oxidase (AOX). The activity of AOX has been found to be dependent on several regulatory mechanisms including gene expression and posttranslational regulation. In the present study, we report that the presence of cyanide in culture medium remarkably retarded the growth of alo1/alo1 mutant of Candida albicans, which lacks d-arabinono-1,4-lactone oxidase (ALO) that catalyzes the final step of d-erythroascorbic acid (EASC) biosynthesis. Measurement of respiratory activity and Western blot analysis revealed that increase in the intracellular EASC level induces the expression of AOX in C. albicans. AOX...

The effect of chemical cues on settlement of pearl oyster Pinctada fucata martensii (Dunker) larvae

Xiujuan, Yu , Weihong, He , Ji-Dong, Gu , Maoxian, He , Yan, Yan

cDNA cloning and expression analysis of Eisenia fetida (Annelida: Oligochaeta) phytochelatin synthase under cadmium exposure

Source: Ecotoxicology and Environmental Safety, In Press, Corrected Proof, Available online 20 February 2008
Franck, Brulle , Claude, Cocquerelle , Atta Nda, Wamalah , Andrew John, Morgan , Peter, Kille , ...

Metallothioneins (MTs) are central to trace metal homeostasis and detoxification throughout biological systems. Prokaryotes, plants, and fungi utilize both gene encoded cysteine-rich polypeptides (classically designated Class I and II MTs) and enzymatically synthesized cysteine-rich peptides (classically designated Class III MTs or phytochelatins). In contrast, although gene encoded MTs are ubiquitous in animal species the identification of a functional phytochelatin synthase in the nematode Caenorhabditis elegans, a representative member of the Ecdysozoa, provided the first evidence for these metal-binding peptides in animals. By exploiting the conservation observed between species we have been able to clone and transcriptionally characterize a phytochelatin synthase...

Immunocytochemical studies on the naupliar nervous system of Balanus improvisus (Crustacea, Cirripedia, Thecostraca)

Henrike, Semmler , Andreas, Wanninger , Jens T., Høeg , Gerhard, Scholtz

Protein profiling of hemocytes from the terrestrial crustacean Armadillidium vulgare,

Source: Developmental & Comparative Immunology, In Press, Uncorrected Proof, Available online 14 February 2008
Juline, Herbinière , Pierre, Grève , Jean-Marc, Strub , Danièle, Thiersé , Maryline, Raimond , ...

To establish and maintain a successful infection, microbial pathogens have evolved various strategies to infect the host in the face of a functional immune system. In this context, the α-proteobacteria Wolbachia capacities to infect new host species have been greatly evidenced. Indeed, in terrestrial isopods, experimentally transferred Wolbachia invade all host tissues, including immune cells such as hemocytes. To investigate mechanisms that have to be avoided by bacteria to maintain themselves in hemocytes, we characterized the hemocyte proteome of Armadillidium vulgare by a 2D gel electrophoresis approach. Fifty-six proteins were identified and classified into functional groups (stress and immunity, glucose...

[REPORTS] The Premetazoan Ancestry of Cadherins

A close unicellular relative of metazoans unexpectedly contains 23 genes for a cell adhesion protein, suggesting a role for the protein in the evolution of multicellularity.

Authors: Monika Abedin, Nicole King

Acetylcholinesterase from the invertebrate Ciona intestinalis is capable of assembling into asymmetric forms when co-expressed with vertebrate collagenic tail peptide

FEBS Journal, Volume 0, Issue 0, Page ???, OnlineEarly Articles.
To learn more about the evolution of the cholinesterases (ChEs), acetylcholinesterase (AChE) and butyrylcholinesterase in the vertebrates, we investigated the AChE activity of a deuterostome invertebrate, the urochordate Ciona intestinalis, by expressing ...

Toxicity and biodegradation of the LAS surfactant 1-(p-sulfophenyl)nonane in presence of the ascidian Styela plicata

Source: Chemosphere, In Press, Corrected Proof, Available online 11 February 2008
Angelo, Cestone , Michele, Di Natale , Salvatore, De Rosa

The main objective of this study, within development of engineering solutions for coastal areas depuration, was to establish the role of the benthic macro-organisms in the biodegradation of the detergents in marine environment and to estimate the toxicity of these substances for a particular marine species: the ascidian Styela plicata. The experimental studies undertaken in aquarium with seawater enriched in a pure lynear alkylbenzene sulfonate (LAS), the 1-(p-sulfophenyl)nonane (1C9-LAS), showed that the degradation was two times more fast in presence of the S. plicata, than of the only marine bacteria. The toxicity of this pollutant was also determined. This study...

Seasonal variation in planktivory risk in a Southern New England coastal habitat

Source: Journal of Experimental Marine Biology and Ecology, In Press, Corrected Proof, Available online 6 February 2008
Stephan G., Bullard , Robert B., Whitlatch

Planktivory is believed to be a major selective force in marine systems, but little is known about how the intensity of planktivory risk varies spatially or temporally. We assessed seasonal daytime planktivory patterns over fifteen months (Apr 2003 to Jun 2004) at a temperate site in eastern Long Island Sound, CT. Planktivory was measured using modified Plankton Tethering Units (PTUs) deployed from floating docks and baited with live brine shrimp. Planktivory risk varied throughout the year. The highest levels of risk occurred in Aug, Sept and Oct (85%, 75% and 42.5% of brine shrimp consumed, respectively), the lowest levels of...

Transitions in Morphology, Nematocyst Distribution, Fluid Motions, and Prey Capture During Development of the Scyphomedusa Cyanea capillata

J. E. Higgins, III, M. D. Ford, and J. H. Costello
Biol Bull 2008 214: 29-41.

A lasp family protein of Ciona intestinalis

Asako G., Terasaki , Jin, Hiruta , Junko, Suzuki , Sachiko, Sakamoto , Tatsuji, Nishioka , ...

RNA editing in regulating gene expression in the brain

James E.C., Jepson , Robert A., Reenan

Identification and functional analysis of Relish homologs in the silkworm, Bombyx mori

Tanaka, Hiromitsu , Matsuki, Hiroyuki , Furukawa, Seiichi , Sagisaka, Aki , Kotani, Eiji , ...

“A lasp family protein of Ciona intestinalis”

Terasaki, Asako G. , Hiruta, Jin , Suzuki, Junko , Sakamoto, Sachiko , Nishioka, Tatsuji , ...

Characterization of a novel vanadium-binding protein (VBP-129) from blood plasma of the vanadium-rich ascidian Ascidia sydneiensis samea

Masao, Yoshihara , Tatsuya, Ueki , Nobuo, Yamaguchi , Kei, Kamino , Hitoshi, Michibata

Hemocyanin-derived phenoloxidase activity in the spiny lobster Panulirus argus (Latreille, 1804)

Rolando, Perdomo-Morales , Vivian, Montero-Alejo , Erick, Perera , Zenia, Pardo-Ruiz , Esther, Alonso-Jiménez

Corrigendum to: “Autophagic and lysosomal reactions to stress in the hepatopancreas of blue mussels”

Michael N., Moore , Aldo, Viarengo , Peter, Donkin , Anthony J.S., Hawkins

Formation of linear dominance relationship in captive jungle crows (Corvus macrorhynchos): Implications for individual recognition

Ei-Ichi, Izawa , Shigeru, Watanabe

Growth rate and age effects on Mya arenaria shell chemistry: Implications for biogeochemical studies

Source: Journal of Experimental Marine Biology and Ecology, In Press, Corrected Proof, Available online 30 January 2008
Carly A., Strasser , Lauren S., Mullineaux , Benjamin D., Walther

The chemical composition of bivalve shells can reflect that of their environment, making them useful indicators of climate, pollution, and ecosystem changes. However, biological factors can also influence chemical properties of biogenic carbonate. Understanding how these factors affect chemical incorporation is essential for studies that use elemental chemistry of carbonates as indicators of environmental parameters. This study examined the effects of bivalve shell growth rate and age on the incorporation of elements into juvenile softshell clams, Mya arenaria. Although previous studies have explored the effects of these two biological factors, reports have differed depending on species and environmental conditions. In...

The Groucho/TLE/Grg family of transcriptional co-repressors

The Groucho family of co-repressor proteins are essential for development and may also have a role in some human cancers.

Linked Analysis of Large Cooperative, Allosteric Systems: The Case of the Giant HBL Hemoglobins

Source: Methods in Enzymology, Volume 436, 2008, Pages 463-485
Nadja, Hellmann , Roy, E. Weber , Heinz, Decker

Homotropic and heterotropic allosteric interactions are important mechanisms that regulate protein function. These mechanisms depend on the ability of oligomeric protein complexes to adopt different conformations and to transmit conformation-linked signals from one subunit of the complex to the neighboring ones. An important step in understanding the regulation of protein function is to identify and characterize the conformations available to the protein complex. This task becomes increasingly challenging with increasing numbers of interacting binding sites. However, a large number of interacting binding sites allows for high homotropic interactions (cooperativity) and thus represents the most interesting case. Examples of very large,...

Effect of dietary taurine supplementation on growth performance and bile salt activated lipase activity of common dentex, Dentex dentex, fed a fish meal/soy protein concentrate-based diet

Stavros, Chatzifotis , Irene, Polemitou , Pascal, Divanach , Efthimia, Antonopoulou

Effects of naphthalene on gene transcription in Calanus finmarchicus (Crustacea: Copepoda)

Bjørn Henrik, Hansen , Dag, Altin , Siv-Hege, Vang , Trond, Nordtug , Anders J., Olsen

Toxic effects of new antifouling compounds on tunicate haemocytes. I. Sea-Nine 211TM and chlorothalonil

Francesca, Cima , Marcantonio, Bragadin , Loriano, Ballarin

Skeletal adaptations for forwards and sideways-walking in three species of decapod crustaceans

Vidal-Gadea, A.G. , Rinehart, M.D. , Belanger, J.H.