Abstract:
:A segment comprising 307,078 nucleotides of the pig major histocompatibility complex (SLA) was completely sequenced. The segment corresponded to the entire SLA classical class I-containing region of the serologically defined SLA H01 haplotype. In all, 11 genes were characterized, comprising 7 class I genes located on the centromeric part of the sequence (SLA-1, 2, 3, 4, 5, 9, and 11) and 4 ring finger-related family genes located on its telomeric part. No member of one family was intermingled with a member of the other or with any third-party gene. All class I genes except SLA-11 were similarly orientated. The SLA-1, 2, and 3 genes displayed both promoter and overall coding regions compatible with normal functions. The SLA-4, 11, and 9 genes were considered pseudogenes because they exhibited marked anomalies. Although the SLA-5 gene had a complete coding region, it displayed mutations in promoter elements which could modify its expression. The great molecular similarity observed among the class I genes extended far outside them, and resulted from segmental duplications. The ring finger genes exhibited great homology with their human counterparts. In pig, one of these genes appeared to correspond to a complete gene which in humans is probably a pseudogene. In all, the 11 genes characterized span about 20% of the total sequence. The remaining 80% consists of interspersed repeat elements. The present results, together with the sequence previously reported involving the SLA class I-related genes, open the way for a better understanding of pig MHC organization.
journal_name
Immunogeneticsjournal_title
Immunogeneticsauthors
Renard C,Vaiman M,Chiannilkulchai N,Cattolico L,Robert C,Chardon Pdoi
10.1007/s002510100348subject
Has Abstractpub_date
2001-08-01 00:00:00pages
490-500issue
6eissn
0093-7711issn
1432-1211journal_volume
53pub_type
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