Cloning of mouse type VII collagen reveals evolutionary conservation of functional protein domains and genomic organization.
Cloning of mouse type VII collagen reveals evolutionary conservation of functional protein domains and genomic organization.
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小鼠 VII 型胶原蛋白的克隆揭示了功能蛋白结构域和基因组组织的进化保守性。
DOI:
10.1111/1523-1747.ep12349019
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
Uitto,J
中科院分区:
文献类型:
--
作者:
Kivirikko,S;Li,K;Christiano,AM;Uitto,J
Type VII collagen is the major component of anchoring fibrils, attachment structures necessary for stable association of the dermal-epidermal basement membrane to the underlying dermis. The critical role of the anchoring fibrils in providing integrity to the cutaneous basement membrane zone is attested to by demonstration of mutations in the type VII collagen gene (COL7A1) in patients with dystrophic epidermolysis bullosa. To gain insight into the evolutionary conservation of the type VII collagen gene, in this study we have cloned the entire mouse type VII collagen cDNA and elucidated the intron-exon organization of the corresponding gene,Col7a1. The coding region of the cDNA consists of 8832 nucleotides encoding a polypeptide of 2944 amino acids with a calculated molecular mass of ~295 kDa. Computer analysis predicted the presence of an 18-amino acid signal peptide. Comparison of the deduced mouseα1(VII) collagen polypeptide with the corresponding human sequence indicated 84.7% identity and 90.4% homology at the amino acid level. In addition, the domain organization, including imperfections and interruptions within the collagenous domain consisting of Gly-X-Y repeat sequences, was highly conserved. The unit of evolutionary period between the full-length human and mouse polypeptides was calculated to be 6.5 million years, however, suggesting relatively rapid evolutionary divergence in comparison to other collagen genes. Elucidation of the intron-exon organization of the mouseCol7a1gene revealed 118 distinct exons, the same number as present in the human gene. These data indicate a high degree of structural conservation between the human and mouse type VII collagen, supporting the critical role of this collagen as the major component of the anchoring fibrils.
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影响因子:
10.5
作者:
通讯作者:
--
DOI:
10.1016/b978-0-12-618155-5.50009-x
发表时间:
1990
期刊:
The Journal of Biological Chemistry
影响因子:
--
作者:
B. Blumberg;M. Kurkinen
通讯作者:
M. Kurkinen
DOI:
--
发表时间:
1981
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fessler,LI;Robinson,WJ;Fessler,JH
通讯作者:
Fessler,JH
影响因子:
4.4
作者:
Li,K;Christiano,AM;Copeland,NG;Gilbert,DJ;Chu,ML;Jenkins,NA;Uitto,J
通讯作者:
Uitto,J
DOI:
10.1016/s0021-9258(19)74270-7
发表时间:
1993-12
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
B. Hudson;S. Reeders;K. Tryggvason
通讯作者:
B. Hudson;S. Reeders;K. Tryggvason