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人类主要组织相容性复合体I类基因家族的染色体组织

Chromosomal organization of the human major histocompatibility complex class I gene family.

作者信息

Koller B H, Geraghty D E, DeMars R, Duvick L, Rich S S, Orr H T

机构信息

Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis 55455.

出版信息

J Exp Med. 1989 Feb 1;169(2):469-80. doi: 10.1084/jem.169.2.469.

Abstract

17 HLA class I genes have been isolated from the genome of B-lymphoblastoid cell line 721. Sequence analysis and transfection studies indicate that three genes, in addition to those encoding the HLA-A, -B, and -C antigens can direct the synthesis of a class I alpha protein (4, 5, 21). Using gene-specific DNA probes to analyze the presence of restriction fragment-length polymorphisms within a large pedigree and in panel of HLA deletion mutant cell lines, we show here that two of these genes, designated HLA-G and HLA-F, are located on the short arm of chromosome 6 telomeric to the HLA-A locus. The third expressed non-A, -B, and -C class I gene, HLA-E, is located between HLA-A and HLA-C (4). In addition, the remaining 11 class I pseudogenes and gene fragments are localized relative to established markers on chromosome 6p.

摘要

已从B淋巴母细胞系721的基因组中分离出17个HLA I类基因。序列分析和转染研究表明,除了编码HLA - A、- B和 - C抗原的基因外,还有三个基因可指导I类α蛋白的合成(4,5,21)。我们使用基因特异性DNA探针分析了一个大家族以及一组HLA缺失突变细胞系中限制性片段长度多态性的存在情况,结果表明,其中两个基因,即HLA - G和HLA - F,位于6号染色体短臂上HLA - A基因座的端粒位置。第三个表达的非A、非B和非C I类基因HLA - E位于HLA - A和HLA - C之间(4)。此外,其余11个I类假基因和基因片段相对于6号染色体短臂上已确定的标记进行了定位。

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