Triple helices formed by polyuridylic acid with some amino deoxyadenosine derivatives.

abstract：:The nucleotide sequences of 5S rRNAs from three protozoa, Bresslaua vorax, Euplotes woodruffi and Chlamydomonas sp. have been determined and aligned together with the sequences of 12 protozoa species including unicellular green algae already reported by the authors and others. Using this alignment, a phylogenic tree o...

journal_title：Journal of molecular evolution

authors： Kumazaki T,Hori H,Osawa S

更新日期：1983-01-01 00:00:00

abstract：:Insertions and deletions of entire codons have recently been discovered as a mechanism by which B cells, in addition to conventional base substitution, evolve the antibodies produced by their immunoglobulin genes. These events frequently seem to involve repetitive sequence motifs in the antibody-encoding genes, and it...

journal_title：Journal of molecular evolution

authors： Lantto J,Ohlin M

更新日期：2002-03-01 00:00:00

abstract：:There is an 8/13 sequence match between actin and flagellin in their N-terminal regions. ...

journal_title：Journal of molecular evolution

authors： Harris RJ,Elder D

更新日期：2002-02-01 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：:This report describes the distribution of P-element sequences among members of the closely related willistoni and saltans species groups of the subgenus Sophophora. Gel-blotting analyses showed that many, but not all, species from each of these groups possess sequences with homology to the P transposable element of Dr...

journal_title：Journal of molecular evolution

authors： Daniels SB,Strausbaugh LD

更新日期：1986-01-01 00:00:00

abstract：:RNA editing affecting chloroplast and mitochondrial genomes has been identified in all major clades of land plants. The frequency of edited sites varies greatly between lineages but hornworts represent an extreme in propensity for editing in both their chloroplast and mitochondrial genomes. cDNA sequences from seven t...

journal_title：Journal of molecular evolution

authors： Duff RJ,Moore FB

更新日期：2005-11-01 00:00:00

abstract：:We described previously a family of dispersed palindromic sequences highly repeated in Escherichia coli and Salmonella typhimurium genomes. These sequences, called PU (palindromic units), are located outside structural genes. We report here observations suggesting that PU may have a role in bacterial speciation. ...

journal_title：Journal of molecular evolution

authors： Gilson E,Perrin D,Saurin W,Hofnung M

更新日期：1987-01-01 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：:We have investigated the evolvability of an insoluble random polypeptide, RP3-34, to a soluble form through iterative mutation and selection with the aid of the green fluorescent protein (GFP) folding reporter. To assess the solubility of the polypeptides in the selected clones of each generation, the polypeptide gene...

journal_title：Journal of molecular evolution

authors： Ito Y,Kawama T,Urabe I,Yomo T

更新日期：2004-02-01 00:00:00

abstract：:This paper constructs a temporal scale for bacterial evolution by tying ecological events that took place at known times in the geological past to specific branch points in the genealogical tree relating the 16S ribosomal RNAs of eubacteria, mitochondria, and chloroplasts. One thus obtains a relationship between time ...

journal_title：Journal of molecular evolution

authors： Ochman H,Wilson AC

更新日期：1987-01-01 00:00:00

abstract：:MgtC is a virulence factor required for intramacrophage survival and growth in low Mg2+ medium in two pathogens that are not phylogenetically related, Salmonella typhimurium and Mycobacterium tuberculosis. In S. typhimurium, mgtC is carried by the SPI-3 pathogenicity island and hybridization studies have suggested tha...

journal_title：Journal of molecular evolution

authors： Blanc-Potard AB,Lafay B

更新日期：2003-10-01 00:00:00

abstract：:In this study, a new strategy for the selection of aptamers against small-molecule target was established using gold nanoparticles (AuNPs) as the separation matrix and Zinc(II)-Protoporphyrin IX (ZnPPIX) as the target molecule without the immobilization step due to the absorption of ssDNA on AuNPs. The progress of the...

journal_title：Journal of molecular evolution

authors： Li W,Luo Y,Gao T,Yang L,Wang J,Pei R

更新日期：2019-09-01 00:00:00

abstract：:Nucleotide sequences for the kappa-casein precursor proteins have been determined from the genomic DNAs or hair roots of the Ruminantia. The coding regions, exons 2, 3, and 4, were amplified separately via the three kinds of PCRs and then directly sequenced. The primers were designed from the sequence of bovine kappa-...

journal_title：Journal of molecular evolution

authors： Chikuni K,Mori Y,Tabata T,Saito M,Monma M,Kosugiyama M

更新日期：1995-12-01 00:00:00

abstract：:Nucleotide polymorphisms in two North American balsam poplars (Populus trichocarpa Torr. & Gray and P. balsamifera L.; section Tacamahaca), and one Eurasian aspen (P. tremula L.; section Populus) were compared using nine loci involved in defense, stress response, photoperiodism, freezing tolerance, and housekeeping. N...

journal_title：Journal of molecular evolution

authors： Ismail M,Soolanayakanahally RY,Ingvarsson PK,Guy RD,Jansson S,Silim SN,El-Kassaby YA

更新日期：2012-06-01 00:00:00

abstract：:The best reconstructions of the history of life will use both molecular time estimates and fossil data. Errors in molecular rate estimation typically are unaccounted for and no attempts have been made to quantify this uncertainty comprehensively. Here, focus is primarily on fossil calibration error because this error ...

journal_title：Journal of molecular evolution

authors： van Tuinen M,Hadly EA

更新日期：2004-08-01 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：:HMG boxes were initially identified as DNA-binding domains of the human RNA polymerase I (pol I) transcription factor hUBF and the animal high-mobility-group (HMG) protein family HMG1. Since then, numerous sequences of HMG-box-containing HMG proteins and other DNA-binding proteins from several species have become avai...

journal_title：Journal of molecular evolution

authors： Griess EA,Rensing SA,Grasser KD,Maier UG,Feix G

更新日期：1993-08-01 00:00:00

abstract：:The usage of synonymous codons and the frequencies of amino acids were investigated in the complete genome of the bacterium Thermotoga maritima using a multivariate statistical approach. The GC3 content of each gene was the most prominent source of variation of codon usage. Surprisingly the usage of UGU and UGC (synon...

journal_title：Journal of molecular evolution

authors： Zavala A,Naya H,Romero H,Musto H

更新日期：2002-05-01 00:00:00

abstract：:The entire mitochondrial DNA control region (mtDNA D-loop) was sequenced in the seven extant species of Alectoris partridges. The D-loop length is very conserved (1155 +/- 2 nucleotides), and substitution rates are lower than for the mitochondrial cytochrome b gene of the same species, on average. Comparative analyses...

journal_title：Journal of molecular evolution

authors： Randi E,Lucchini V

更新日期：1998-10-01 00:00:00

abstract：:Computational and experimental attempts tried to characterize a universal core of genes representing the minimal set of functional needs for an organism. Based on the increasing number of available complete genomes, comparative genomics has concluded that the universal core contains < 50 genes. In contrast, experiment...

journal_title：Journal of molecular evolution

authors： Carbone A

更新日期：2006-12-01 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：:Catalyzed by a family of enzymes called glycosyltransferases, glycosylation reactions are essential for the bioactivities of secondary metabolites such as antibiotics. Due to the special characters of antibiotic glycosyltransferases (AGts), antibiotics can function by attaching some unusual deoxy-sugars to their aglyc...

journal_title：Journal of molecular evolution

authors： Liang D,Qiao J

更新日期：2007-03-01 00:00:00

abstract：:Recombination has been suggested to be an important factor for the genetic variation of bacterial genes, but few studies have dealt with intragenic recombination between the same or closely related species of cyanobacteria. Here we provide strong evidence for recombination in the microcystin synthetase (mcy) gene clus...

journal_title：Journal of molecular evolution

authors： Tanabe Y,Kaya K,Watanabe MM

更新日期：2004-06-01 00:00:00

abstract：:Eukaryotic Nramp genes encode divalent metal ion permeases important for nutrition and resistance to microbial infection. Bacterial homologs encode proton-dependent transporters of manganese (MntH), and other divalent metal ions. Bacterial MntH were classified in three homology groups (A, B, C) and MntH C further subd...

journal_title：Journal of molecular evolution

authors： Richer E,Courville P,Bergevin I,Cellier MF

更新日期：2003-10-01 00:00:00

abstract：:The mutation and selection of regulatory DNA sequences are presented as an ideal model system of molecular evolution where genotype, phenotype, and fitness can be explicitly and independently characterized. In this theoretical study, we construct an explicit model for the evolution of regulatory sequences, making use ...

journal_title：Journal of molecular evolution

authors： Gerland U,Hwa T

更新日期：2002-10-01 00:00:00

abstract：:Adenosine 5'-phosphoramidates form when solutions containing adenosine 5'-polyphosphates pnA (n greater than or equal to 3) or P1, P2-diadenosine 5'-diphosphate and amines are allowed to dry out. Mg ions catalyze these reactions. We have studied systems containing ammonia, imidazole, glycine, ethylenediamine and hista...

journal_title：Journal of molecular evolution

authors： Lohrmann R

更新日期：1977-11-25 00:00:00

abstract：:Proteins are commonly used as molecular targets against pathogens such as viruses and bacteria. However, pathogens can evolve rapidly permitting their populations to increase in protein diversity over time and thus escape to the activity of a molecular therapy. Subsequently, in order to design more durable and robust ...

journal_title：Journal of molecular evolution

authors： Arenas M

更新日期：2020-08-01 00:00:00

abstract：:We have studied the relative contribution of inversions, transpositions, deletions, and nucleotide substitutions to the evolution of Chlamydia trachomatis and Chlamydia pneumoniae. The minimal number of rearrangement events required for converting the gene order structure of one genome into that of the other was estim...

journal_title：Journal of molecular evolution

authors： Dalevi DA,Eriksen N,Eriksson K,Andersson SG

更新日期：2002-07-01 00:00:00

abstract：:Unravelling gene structure requires the identification and understanding of the constraints that are often associated with the evolutionary history and functional domains of genes. We speculated in this manuscript with the possibility of the existence in orthologs of an emergent highly conserved gene structure that mi...

journal_title：Journal of molecular evolution

authors： Fuertes MA,Rodrigo JR,Alonso C

更新日期：2019-04-01 00:00:00

abstract：:To understand the process and mechanism of protein evolution, it is important to know what types of amino acid substitutions are more likely to be under selection and what types are mostly neutral. An amino acid substitution can be classified as either conservative or radical, depending on whether it involves a change...

journal_title：Journal of molecular evolution

authors： Zhang J

更新日期：2000-01-01 00:00:00