Characterization of a protamine gene from the chum salmon (Oncorhynchus keta).

abstract：:Complement control proteins (CCPs) contain repeated protein domains, short consensus repeats (SCRs), which must be relevant to diverse functions such as complement activation, coagulation, viral binding, fetal implantation, and self-nonself recognition. Although SCRs share some discontinuous and imperfect motifs, ther...

journal_title：Journal of molecular evolution

authors： McLure CA,Dawkins RL,Williamson JF,Davies RA,Berry J,Natalie LJ,Laird R,Gaudieri S

更新日期：2004-08-01 00:00:00

abstract：:Male sex genes have shown a pattern of rapid interspecies divergence at both the coding and gene expression level. A common outcome from crosses between closely-related species is hybrid male sterility. Phenotypic and genetic studies in Drosophila sterile hybrid males have shown that spermatogenesis arrest is postmeio...

journal_title：Journal of molecular evolution

authors： Sundararajan V,Civetta A

更新日期：2011-01-01 00:00:00

abstract：:Factors involved in the selection of the 20 protein L-alpha-amino acids during chemical evolution and the early stages of Darwinian evolution are discussed. The selection is considered on the basis of the availability in the primitive ocean, function in proteins, the stability of the amino acid and its peptides, stabi...

journal_title：Journal of molecular evolution

authors： Weber AL,Miller SL

更新日期：1981-01-01 00:00:00

abstract：:It has been argued that downstream enzymes in metabolic pathways are expected to be subject to reduced selective constraint, while upstream enzymes, particularly those at pathway branch points, are expected to exhibit more frequent adaptive substitution than downstream enzymes. We examined whether these expectations a...

journal_title：Journal of molecular evolution

authors： Rausher MD,Lu Y,Meyer K

更新日期：2008-08-01 00:00:00

abstract：:The sequence of the mitochondrial DNA (mtDNA) molecule of the European hedgehog (Erinaceus europaeus) was determined. The length of the sequence presented is 17,442 nucleotides (nt). The molecule is thus the largest eutherian mtDNA molecule so far reported. The organization of the molecule conforms with that of other ...

journal_title：Journal of molecular evolution

authors： Krettek A,Gullberg A,Arnason U

更新日期：1995-12-01 00:00:00

abstract：:We have studied the metal-ion catalysis of a number of reactions of the isomers of ImpGpG on a poly(C) template. In the absence of a catalytic metal ion, oligomers at least up to (pG)20 are obtained from the ImpGpG isomers in a 1-methylimidazole buffer. The Pb2+ ion improves the yield of longer oligomers and changes s...

journal_title：Journal of molecular evolution

authors： Lohrmann R,Bridson PK,Orgel LE

更新日期：1981-01-01 00:00:00

abstract：:Sequence comparisons of 14 distinct MHC class I cDNA clones isolated from species representing the three major taxonomic lineages of Felidae (domestic cat lineage, ocelot lineage, and pantherine lineage) revealed that feline MHC class I alleles have highly mosaic structures with short polymorphic sequence motifs that ...

journal_title：Journal of molecular evolution

authors： Yuhki N,O'Brien SJ

更新日期：1994-07-01 00:00:00

abstract：:Quantitative immunological comparisons of three avian proteins, transferrin, ovalbumin, and penalbumin, indicate that penguins are phylogenetically most closely related to loons, albatrosses, herons, and grebes. These data support the theory that the ancestors of penguins were flying oceanic birds and that flightlessn...

journal_title：Journal of molecular evolution

authors： Ho CY,Prager EM,Wilson AC,Osuga DT,Feeney RE

更新日期：1976-10-27 00:00:00

abstract：:Collagen is an important structural protein and the most abundant protein in mammals. In several research fields, structural analysis of collagens is performed. Fibrillar collagens almost entirely consist of continuous repeats of GXY, where G is glycine, X is often proline or alanine and Y is often hydroxyproline or a...

journal_title：Journal of molecular evolution

authors： Kleinnijenhuis AJ,van Holthoon FL

更新日期：2018-06-01 00:00:00

abstract：:Several distinct families of endogenous retroviruses exist in the genomes of primates. Most of them are remnants of ancient germ-line infections. The human endogenous retrovirus family HERV-K represents the unique known case of endogenous retrovirus that amplified in the human genome after the divergence of human and ...

journal_title：Journal of molecular evolution

authors： Costas J

更新日期：2001-09-01 00:00:00

abstract：:We have determined the genomic structure of an integrin beta-subunit gene from the coral, Acropora millepora. The coding region of the gene contains 26 introns, spaced relatively uniformly, and this is significantly more than have been found in any integrin beta-subunit genes from higher animals. Twenty-five of the 26...

journal_title：Journal of molecular evolution

authors： Schmitt DM,Brower DL

更新日期：2001-12-01 00:00:00

abstract：:We present phylogenetic evidence that a group I intron in an angiosperm mitochondrial gene arose recently by horizontal transfer from a fungal donor species. A 1,716-bp fragment of the mitochondrial coxI gene from the angiosperm Peperomia polybotrya was amplified via the polymerase chain reaction and sequenced. Compar...

journal_title：Journal of molecular evolution

authors： Vaughn JC,Mason MT,Sper-Whitis GL,Kuhlman P,Palmer JD

更新日期：1995-11-01 00:00:00

abstract：:Drosophilidae is a large, widely distributed family of Diptera including 61 genera, of which Drosophila is the most representative. Drosophila feeding is part of the saprophytic trophic chain, because of its dependence upon decomposing organic matter. Many species have adapted to fermenting fruit feeding or to artific...

journal_title：Journal of molecular evolution

authors： Atrian S,Sánchez-Pulido L,Gonzàlez-Duarte R,Valencia A

更新日期：1998-08-01 00:00:00

abstract：:This study dealt with the ability of non-denaturing gel electrophoresis to separate iso-1-cytochrome c with single amino acid replacements isolated from revertants of various cyc1 nonsense mutants of the yeast Saccharomyces cerevisiae. A total of 28 different iso-1-cytochromes c with single amino acid substitutions of...

journal_title：Journal of molecular evolution

authors： McLellan T,Sherman F

更新日期：1991-10-01 00:00:00

abstract：:Characterization of sequences homologous to the Drosophila melanogaster gypsy transposable element was carried out in Drosophila subobscura (gypsyDS). They were found to be widely distributed among natural populations of this species. From Southern blot and in situ analyses, these sequences appear to be mobile in this...

journal_title：Journal of molecular evolution

authors： Alberola TM,de Frutos R

更新日期：1993-02-01 00:00:00

abstract：:DEAD-box proteins are found in all domains of life and participate in almost all cellular processes that involve RNA. The presence of DEAD and Helicase_C conserved domains distinguish these proteins. DEAD-box proteins exhibit RNA-dependent ATPase activity in vitro, and several also show RNA helicase activity. In this ...

journal_title：Journal of molecular evolution

authors： López-Ramírez V,Alcaraz LD,Moreno-Hagelsieb G,Olmedo-Álvarez G

更新日期：2011-04-01 00:00:00

abstract：:The retrieval of Neanderthal (Homo neanderthalsensis) mitochondrial DNA is thought to be among the most significant ancient DNA contributions to date, allowing conflicting hypotheses on modern human (Homo sapiens) evolution to be tested directly. Recently, however, both the authenticity of the Neanderthal sequences an...

journal_title：Journal of molecular evolution

authors： Hebsgaard MB,Wiuf C,Gilbert MT,Glenner H,Willerslev E

更新日期：2007-01-01 00:00:00

abstract：:An assay based on derivative analysis of thermal denaturation (melting) behavior of reassociated DNA was developed in an attempt to characterize the sequence relationships in repeated DNA families according to the homogeneous or heterogeneous models of Bendich and Anderson (1977). The validity of the technique was con...

journal_title：Journal of molecular evolution

authors： Preisler RS,Thompson WF

更新日期：1981-01-01 00:00:00

abstract：:Cot and chemical analysis show that the haploid genome size of Thermobia domestica is 3-4x10(9) nucleotide pairs. Of this DNA 33% is single copy sequences and 67% is repetitive sequences. The repetitive sequences are predominantly 300 nucleotides in length and are interspersed among the single copy sequences in a shor...

journal_title：Journal of molecular evolution

authors： French CK,Manning JE

更新日期：1980-08-01 00:00:00

abstract：:Phylogenetic relationships among eight species of the Drosophila buzzatii species complex (D. mulleri subgroup; D. repleta species group) and D. hamatofila were determined by sequencing the mitochondrial cytochrome oxidase subunit I, II, and III genes. The species examined included members of the martensis cluster (D....

journal_title：Journal of molecular evolution

authors： Spicer GS

更新日期：1995-12-01 00:00:00

abstract：:Previous studies have shown that pituitary growth hormone displays an episodic pattern of evolution, with a slow underlying evolutionary rate and occasional sustained bursts of rapid change. The present study establishes that pituitary prolactin shows a similar pattern. During much of tetrapod evolution the sequence o...

journal_title：Journal of molecular evolution

authors： Wallis M

更新日期：2000-05-01 00:00:00

abstract：:Phylogenetic relationships of 25 mammalian species representing 17 of the 18 eutherian orders were examined using DNA sequences from a 1.2-kb region of the 5' end of exon 1 of the single-copy nuclear gene known as interphotoreceptor retinoid binding protein (IRBP). A wide variety of methods of analysis of the DNA sequ...

journal_title：Journal of molecular evolution

authors： Stanhope MJ,Smith MR,Waddell VG,Porter CA,Shivji MS,Goodman M

更新日期：1996-08-01 00:00:00

abstract：:In studies of molecular evolution, the assumption that protein evolution is reversible has often been made, but rarely tested. Here we use a large set of orthologous murid protein coding sequences to perform a simple test of reversibility, and find no evidence to reject the assumption of reversibility in protein evolu...

journal_title：Journal of molecular evolution

authors： Smith NG,Eyre-Walker A

更新日期：2001-05-01 00:00:00

abstract：:This study examines the diverse maximum wavelength absorption (lambdamax) found in crayfishes (Decapoda: Cambaridae and Parastacidae) and the associated genetic variation in their opsin locus. We measured the wavelength absorption in the photoreceptors of six species that inhabit environments of different light intens...

journal_title：Journal of molecular evolution

authors： Crandall KA,Cronin TW

更新日期：1997-11-01 00:00:00

abstract：:The kinetics of synonymous codon change and species divergence is described in a matrix formalism that is equally applicable to all levels of codon degeneracy and all levels of codon or nucleotide bias. Based on the formalism it is possible to calculate the sum of all synonymous substitution rate constants from the ob...

journal_title：Journal of molecular evolution

authors： Berg OG

更新日期：1995-09-01 00:00:00

abstract：:We have analyzed the gene that encodes receptor tyrosine kinase (RTK) from the marine sponge Geodia cydonium, which belongs to the most ancient and simple metazoan groups, the Porifera. RTKs are enzymes found only in metazoa. The sponge gene contains two introns in the extracellular part of the protein. However, the r...

journal_title：Journal of molecular evolution

authors： Gamulin V,Skorokhod A,Kavsan V,Müller IM,Müller WE

更新日期：1997-03-01 00:00:00

abstract：:Rooted phylogenetic trees for a total of 34 genes encoding the stimulatory (s alpha), inhibitory (i alpha), transducin (t alpha), Gx (x alpha), Gz (z alpha), G11 (alpha 11), G12 (alpha 12), G13 (alpha 13), G16 (alpha 16), Gq (q alpha), and other (o alpha) G protein alpha subunits have been constructed. The analysis sh...

journal_title：Journal of molecular evolution

authors： Yokoyama S,Starmer WT

更新日期：1992-09-01 00:00:00

abstract：:The symbiotic protists of the lower termite have been regarded as a model of early-branched eukaryotes because of their simple cellular systems and morphological features. However, cultivation of these symbiotic protists is very difficult. For this reason, these interesting protists have not been well characterized in...

journal_title：Journal of molecular evolution

authors： Moriya S,Tanaka K,Ohkuma M,Sugano S,Kudo T

更新日期：2001-01-01 00:00:00

abstract：:We present two new models of protein sequence evolution based on structural properties of mitochondrial proteins. We compare these models with others currently used in phylogenetic analyses, investigating their performance over both short and long evolutionary distances. We find that our models that incorporate second...

journal_title：Journal of molecular evolution

authors： Liò P,Goldman N

更新日期：2002-04-01 00:00:00

abstract：:The major histocompatibility complex (MHC) consists of polymorphic frozen blocks (PFBs) that are linked to form megabase haplotypes. These blocks consist of polymorphic sequences and define regions where recombination appears to be inhibited. We have been able to show, using a highly polymorphic sequence centromeric o...

journal_title：Journal of molecular evolution

authors： Gaudieri S,Leelayuwat C,Tay GK,Townend DC,Dawkins RL

更新日期：1997-07-01 00:00:00