Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Colias  (2)
  • Key words: TCR — V-gene — Nucleotide differences — Alpha chain — Beta chain — Evolutionary preservation  (1)
Datenquelle
Materialart
Erscheinungszeitraum
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Profile of Numbers of Sequence Differences Among V-Genes Coding for the Variable Regions of T Cell Receptor for Antigen Alpha and Beta Chains (1997)
    Springer
    Journal of molecular evolution 44 (1997), S. 253 -257 
    Details
    ISSN: 1432-1432
    Schlagwort(e): Key words: TCR — V-gene — Nucleotide differences — Alpha chain — Beta chain — Evolutionary preservation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract. When human T cell receptor for antigen (TCR) alpha chain V-genes were compared pair-wise, the numbers of nucleotide differences showed a characteristic distribution; most were in the range of 100 to 200 differences out of a total of about 300 bases. The same distribution was observed for mouse TCR alpha chains. Even more interesting was that comparing human alpha chains and mouse alpha chains gave essentially the same nucleotide difference pattern. It is inferred from the large number of differences and from the nonspecificity of trans-species (human and mouse) nucleotide sequence differences of TCR V-genes that TCR alpha chains probably diverged early during evolution. The same feature was also observed for human and mouse TCR beta chains, although the alpha and beta chain V-genes were distinct. This evolutionary preservation could be of vital importance to the fidelity of the complicated trimolecular interactions among TCR alpha and beta chains, the processed peptide, and the major histocompatibility complex (MHC) class I or II molecules.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/PL00006142
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Polymorphism and predictability at the α-glycerophosphate dehydrogenase locus in Colias butterflies: Gradients in allele frequency within single populations (1976)
    Springer
    Biochemical genetics 14 (1976), S. 403-426 
    Details
    ISSN: 1573-4927
    Schlagwort(e): polymorphism ; Colias ; α-glycerophosphate dehydrogenase ; cline
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Heterozygosity at the α-glycerophosphate dehydrogenase locus of five species of Colias butterflies is widespread in montane populations; alpine and lowland populations are not heterozygous. Within a single demographically characterized population of C. meadii where the population extends from alpine down into montane habitats, a marked cline in allele frequency is seen. Such within-population clines suggest the involvement of strong selection across the marked ecological interface. Thermal factors are the most likely causative agents, but associative overdominance is not excluded.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00486123
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Characterization of electrophoretically cryptic variation in the alpine butterfly Colias meadii (1977)
    Springer
    Biochemical genetics 15 (1977), S. 665-693 
    Details
    ISSN: 1573-4927
    Schlagwort(e): Colias ; enzyme polymorphism ; protein conformation ; electrophoresis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Enzyme polymorphism was characterized among the proteins of 14 loci of Coliae meadii by replicate electrophoresis in polyacrylamide gels of differing pore size. The results reveal a large number of variants, with a very skewed frequency distribution. A large fraction of the variants cannot be differentiated by electrophoresis in 5–7% acrylamide gels. This gel sieving approach permits an estimate of the relative contributions of charge and of conformation to electrophoretic mobility. Many of the variant proteins do not differ in charge. Most variants exhibit different degrees of interaction with the gel and presumably differ in conformation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00484097
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...