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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2005-10-24
pubmed:abstractText
Twenty-four BF2 genes and 10 beta(2)m genes from Chinese Sanhuang (SH), Wuji (WJ), and Zhenzhu (ZZ) chicken lines were cloned, and the amino acid replacement rates of the BF2 polypeptide binding domain were investigated. For this purpose, 13 BF2 genes from the SH-chicken line (BF2*01sh-BF2*13sh), six BF2 genes from the WJ-chicken line (BF2*01wj-BF2*06wj), and five BF2 genes from the ZZ-chicken line (BF2*01zz-BF2*05zz) were analyzed. The overall conservation of BF2 alleles could be observed within the sequences, and relative conservation was also displayed in the peptide-binding domain, CD8(+) interaction sites, and beta(2)m contact sites. Based on the amino acid similarity, BF2 from the three chicken lines could be divided into eleven gene groups, and five novel gene groups were observed. Although the amino acid similarity among the different alleles was 75.7-99.2%, within an allelic group the members shared >91% amino acid identity with each other. In addition, beta(2)m genes from the three Chinese chicken lines were also clustered into two gene groups: I and II. Between groups I and II, the amino acid identical ratio was much lower (81.9-84.0%). Group I is close to that of the reported chicken beta(2)m, whereas group II represents a new allelic group. The results suggest that five new BF2 groups and a new beta(2)m group exist in the three Chinese chicken lines.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0165-2427
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
417-25
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Characterization of BF2 and beta2m in three Chinese chicken lines.
pubmed:affiliation
Department of Microbiology and Immunology, College of Veterinary Medicine, China Agricultural University, Beijing 100094, PR China.
pubmed:publicationType
Journal Article