Evolutionary role of posttranslational modifications of proteins, as illustrated by the glycosylation characteristics of the digestive enzyme pancreatic ribonuclease.

abstract：:The sequences of the adenylate kinase gene (adk) and the RecA gene (recA) were determined from the same isolates of Neisseria gonorrhoeae, N. meningitidis, N. lactamica, N. polysaccharea, N. cinerea, N. mucosa, N. pharyngis var. flava, N. flavescens, and N. animalis. The patterns of sequence divergence observed at adk...

journal_title：Journal of molecular evolution

authors： Feil E,Zhou J,Maynard Smith J,Spratt BG

更新日期：1996-12-01 00:00:00

abstract：:Restriction modification (RM) systems serve to protect bacteria against bacteriophages. They comprise a restriction endonuclease activity that specifically cleaves DNA and a corresponding methyltransferase activity that specifically methylates the DNA, thereby protecting it from cleavage. Such systems are very common ...

journal_title：Journal of molecular evolution

authors： Jeltsch A,Pingoud A

更新日期：1996-02-01 00:00:00

abstract：:Microsporidia are unicellular eukaryotes living as obligate intracellular parasites. Lacking mitochondria, they were initially considered as having diverged before the endosymbiosis at the origin of mitochondria. That microsporidia were primitively amitochondriate was first questioned by the discovery of microsporidia...

journal_title：Journal of molecular evolution

authors： Thomarat F,Vivarès CP,Gouy M

更新日期：2004-12-01 00:00:00

abstract：:Catalyzed polymerization reactions represent a primary anabolic activity of all cells. It can be assumed that early cells carried out such reactions, in which macromolecular catalysts were encapsulated within some type of boundary membrane. In the experiments described here, we show that a template-independent RNA pol...

journal_title：Journal of molecular evolution

authors： Chakrabarti AC,Breaker RR,Joyce GF,Deamer DW

更新日期：1994-12-01 00:00:00

abstract：:tRNA with a terminal UCCA-3' forms a structure in which the 3'-sequence folds back. The adenine of glycyl-AMP can base-pair with the uridine of the UCCA-3' region, which places the glycine residue in close proximity to the 3'-terminal adenosine of tRNA, possibly enabling the transfer of glycine from glycyl-AMP to tRNA...

journal_title：Journal of molecular evolution

authors： Tamura K

更新日期：2015-10-01 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：:Microsatellite DNA sequences have become the dominant source of nuclear genetic markers for most applications. It is important to investigate the basis of variation between alleles and to know if current assumptions about the mechanisms of microsatellite mutation (that is to say, variations involving simple changes in...

journal_title：Journal of molecular evolution

authors： Grimaldi MC,Crouau-Roy B

更新日期：1997-03-01 00:00:00

abstract：:The activated dimonophosphate of 3'-deoxyadenosine (cordycepin) undergoes oligomerization to produce a new family of pyrophosphate-linked oligomers in which the average repeating unit involves a nine-atom structural group. The presence of a poly(U) template increases the relative yields of higher oligomers, although t...

journal_title：Journal of molecular evolution

authors： Visscher J,Schwartz AW

更新日期：1987-01-01 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：:Translation termination is catalyzed by release factors that recognize stop codons. However, previous works have shown that in some bacteria, the termination process also involves bases around stop codons. Recently, Ito et al. analyzed release factors and identified the amino acids therein that recognize stop codons. ...

journal_title：Journal of molecular evolution

authors： Ozawa Y,Saito R,Washio T,Tomita M

更新日期：2003-06-01 00:00:00

abstract：:It is known that globin genes contain three exons with the middle exon coding for a four-helical supersecondary structure responsible for heme binding. Since this portion of the globin peptide chain can be structurally superimposed onto the cytochrome c and cytochrome b5 chains (Argos and Rossmann 1979), it can be inf...

journal_title：Journal of molecular evolution

authors： Argos P,Rossmann MG

更新日期：1980-12-01 00:00:00

abstract：:Throughout history, remote archipelagos have repeatedly been designated natural laboratories to study evolutionary processes. The extensive, geographically structured, morphological variation within Galápagos' Opuntia cacti has been presumed to be another example of how such processes shape diversity. However, recent ...

journal_title：Journal of molecular evolution

authors： Helsen P,Verdyck P,Van Dongen S

更新日期：2011-03-01 00:00:00

abstract：:The sequence of a cloned Anopheles stephensi gene showed 72% inferred amino acid identity with Drosophila melanogaster Dox-A2 and 93% with its putative ortholog in Anopheles gambiae. Dox-A2 is the reported but herein disputed structural locus for diphenol oxidase A2. Database searches identified Dox-A2 related gene se...

journal_title：Journal of molecular evolution

authors： Garvey CF,Malcolm CA

更新日期：2000-06-01 00:00:00

abstract：:Sequences were obtained from five species of rodents that are orthologous to an H2a histone pseudogene from Mus musculus. The pseudogene is part of the cluster of replication-dependent histone genes found on Mus musculus chromosome 13. Comparative analysis of these five sequences together with the previously published...

journal_title：Journal of molecular evolution

authors： DeBry RW

更新日期：1998-03-01 00:00:00

abstract：:Universal scale of the sequence conservation has been recently introduced based on omnipresence of the protein sequence motifs across species. A large spectrum of short sequences, up to eight residues has been found to reside in all or almost all prokaryotic organisms. By this discovery a principally novel quantitativ...

journal_title：Journal of molecular evolution

authors： Sobolevsky Y,Trifonov EN

更新日期：2006-11-01 00:00:00

abstract：:The transposable element mariner occurs widely in the melanogaster species group of Drosophila. However, in drosophilids outside of the melanogaster species group, sequences showing strong DNA hybridization with mariner are found only in the genus Zaprionus. The mariner sequence obtained from Zaprionus tuberculatus is...

journal_title：Journal of molecular evolution

authors： Maruyama K,Hartl DL

更新日期：1991-12-01 00:00:00

abstract：:The possibility of surface catalysed condensation of unsubstituted amino acids on kaolinite in aqueous systems at elevated temperatures was investigated; no evidence of clay catalysed polycondensation has been found. The thermodynamic feasibility of the hypothetical lysine/dilysine condensation reaction in the tempera...

journal_title：Journal of molecular evolution

authors： Flegmann AW,Scholefield D

更新日期：1978-12-29 00:00:00

abstract：:Group selection is a matter of acute controversy among evolutionary biologists. The most well-publicized debate in this regard is that between Edward O. Wilson and Richard Dawkins. As is widely known, Edward O. Wilson is very excited about the idea of social selection and eusociality; by contrast Richard Dawkins favor...

journal_title：Journal of molecular evolution

authors： Voskarides K

更新日期：2018-04-01 00:00:00

abstract：:Mitochondrial small-subunit (19S) rDNA sequences were obtained from 10 angiosperms to further characterize sequence divergence levels and structural variation in this molecule. These sequences were derived from seven holoparasitic (nonphotosynthetic) angiosperms as well as three photosynthetic plants. 19S rRNA is comp...

journal_title：Journal of molecular evolution

authors： Duff RJ,Nickrent DL

更新日期：1997-12-01 00:00:00

abstract：:The homeobox gene Hoxa-13 codes for a transcription factor involved in multiple functions, including body axis and hand/foot development in tetrapods. In this study we investigate whether the loss of one function (e.g., limb loss in snakes) left a molecular footprint in exon 1 of Hoxa-13 that could be associated with ...

journal_title：Journal of molecular evolution

authors： Kohlsdorf T,Cummings MP,Lynch VJ,Stopper GF,Takahashi K,Wagner GP

更新日期：2008-12-01 00:00:00

abstract：:Soluble lead salts and a number of lead-containing minerals catalyze the formation of oligonucleotides from nucleoside 5'-phosphorimidazolides. The effectiveness of lead compounds correlates strongly with their solubility. Under optimal conditions we were able to obtain 18% of pentamer and higher oligomers from ImpA. ...

journal_title：Journal of molecular evolution

authors： Sleeper HL,Orgel LE

更新日期：1979-04-12 00:00:00

abstract：:Ubiquitin is remarkable for its ubiquitous distribution and its extreme protein sequence conservation. Ubiquitin genes comprise direct repeats of the ubiquitin coding unit with no spacers. The nucleotide sequences of several ubiquitin repeats from each of humans, chicken, Xenopus, Drosophila, barley, and yeast have re...

journal_title：Journal of molecular evolution

authors： Sharp PM,Li WH

更新日期：1987-01-01 00:00:00

abstract：:We have sequenced the nuclear and mitochondrial small subunit rRNA genes (rns) and the mitochondrial genes coding for subunits 1 and 3 of the cytochrome oxidase (cox1 and cox3, respectively) of the chytridiomycete Allomyces macrogynus. Phylogenetic trees inferred from the derived COX1 and COX3 proteins and the nuclear...

journal_title：Journal of molecular evolution

authors： Paquin B,Forget L,Roewer I,Lang BF

更新日期：1995-11-01 00:00:00

abstract：:Amino acid substitution models represent substitution rates among amino acids during the evolution. The models play an important role in analyzing protein sequences, especially inferring phylogenies. The rapid evolution of flaviviruses is expanding the threat in public health. A number of models have been estimated fo...

journal_title：Journal of molecular evolution

authors： Le TK,Vinh LS

更新日期：2020-07-01 00:00:00

abstract：:Life is based on biopolymers that have the ability to replicate themselves. Here we consider how a self-replicating RNA system may have originated. We consider a reaction system in which polymerization is possible by the addition of an activated monomer to the end of a chain. We suppose that a small fraction of polyme...

journal_title：Journal of molecular evolution

authors： Wu M,Higgs PG

更新日期：2009-11-01 00:00:00

abstract：:The codon assignment of the quasi-universal genetic code can be assumed to have resulted from the evolutionary pressures that prevailed when the code was still evolving. Here, we review studies of the structure of the genetic code based on optimization models. We also review studies that, from the structure of the cod...

journal_title：Journal of molecular evolution

authors： Jestin JL,Kempf A

更新日期：2009-11-01 00:00:00

abstract：:As the origin(s) of life on Earth remains an open question, detailed characteristics about the "last universal ancestor" (LUA) continue to be obscured. Here we provide arguments that strengthen the bacterial-like nature of the LUA. Our view attempts to recreate the evolution of archaeal lipids, the major components of...

journal_title：Journal of molecular evolution

authors： Payandeh J,Pai EF

更新日期：2007-03-01 00:00:00

abstract：:Mitochondrial DNA (mtDNA) restriction site maps for nine species of the Drosophila obscura subgroup and for Drosophila melanogaster were established. Taking into account all restriction enzymes (12) and strains (45) analyzed, a total of 105 different sites were detected, which corresponds to a sample of 3.49% of the m...

journal_title：Journal of molecular evolution

authors： González AM,Hernández M,Volz A,Pestano J,Larruga JM,Sperlich D,Cabrera VM

更新日期：1990-08-01 00:00:00

abstract：:We examined the cis- vs. trans-splicing status of the mitochondrial group II intron nad1i728 in 439 species (427 genera) of land plants, using both Southern hybridization results (for 416 species) and intron sequence data from the literature. A total of 164 species (157 genera), all angiosperms, was found to have a tr...

journal_title：Journal of molecular evolution

authors： Qiu YL,Palmer JD

更新日期：2004-07-01 00:00:00

abstract：:In this paper we present an iterative character weighting method for the construction of phyletic trees. An initial tree is used to calculate the character weights, which are the number of mutations normalized so that the possible range is corrected for. The weights obtained are used to adjust the tree; this process i...

journal_title：Journal of molecular evolution

authors： van Ooyen A,Hogeweg P

更新日期：1990-10-01 00:00:00