期刊
HUMAN IMMUNOLOGY
卷 64, 期 11, 页码 1005-1010出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.humimm.2003.08.347
关键词
HLA-G; polymorphism; 3 ' UTR; mRNA stability
类别
Human leukocyte antigen (HLA)-G molecules are generated by an alternative splicing of the primary transcript of the gene and display specialized function in regulating the immune response. Although HLA-G gene polymorphism is low, it may influence levels of protein expression and, in some cases, has been associated with pregnancy diseases. The HLA-G gene exhibits 14 alleles generating six proteins with minor variations and a null allele. HLA-G allelic variants may be also characterized by a 14 bp deletion-insertion polymorphism located in the 3' UT region of the HLA-G gene. The presence of the 14 bp insertion is known to generate an additional splice whereby 92 bases are removed from the start of exon 8. To analyze the effect of this deletion on the stability of HLA-G mRNAs, we performed actinomycin D treatments on both JEG-3 choriocarcinoma cell line and MS melanoma cell line transfected with HLA-G*010102 allele. We observed that HLA-G mRNAs having the 92-base deletion are more stable than the complete mRNA forms, suggesting that this region may be involved in the mechanisms controlling post-transcriptional regulation of HLA-G molecule associated with allelic variants. Human Immunology 64, 1005-7010 (2003). (C) American Society for Histocompatibility and Immunogenetics, 2003. Published by Elsevier Inc.
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