Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1987-12-30
pubmed:databankReference
pubmed:abstractText
Four recombinant cDNA clones coding for a 23 kDa beta-crystallin polypeptide of the frog (Rana temporaria) were identified in a collection of cloned cDNA and two of them were sequenced. The cDNA present in these clones codes for a polypeptide 198 amino-acid residues in length, which appears to be the frog beta A1-crystallin because of its high homology with the sequences of beta A1-crystallins from other species. Furthermore, the nucleotide sequence coding for the compact folded region of the protein is highly conserved. Virtually no homology was found in the 3' nontranslated regions of the mRNA. The amino-acid sequence of the Rana beta A1-crystallin was used to build a three-dimensional model based on the coordinates of the homologous bovine gamma II. An analysis of the model shows that the surface residues of the beta A1-crystallin (amphibian, mammalian and bird) are more highly conserved than the buried residues. It is suggested that this is related to the oligomeric nature of the lens beta-crystallins.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
916
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-71
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Frog lens beta A1-crystallin: the nucleotide sequence of the cloned cDNA and computer graphics modelling of the three-dimensional structure.
pubmed:affiliation
Institute of Developmental Biology, USSR Academy of Sciences, Moscow.
pubmed:publicationType
Journal Article