Myosin heavy chain isoforms expressed in bovine skeletal muscles

被引：40

作者：

Chikuni, K ^{[1
]}

Muroya, S ^{[1
]}

Nakajima, I ^{[1
]}

机构：

[1] Natl Inst Livestock & Grassland Sci, Meat Sci Lab, Dept Anim Prod, Tsukuba, Ibaraki 3050901, Japan

来源：

MEAT SCIENCE | 2004年 / 67卷 / 01期

关键词：

MyHC; complete sequence; isoforms; fiber types;

D O I：

10.1016/j.meatsci.2003.09.011

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Nucleotide sequences including the full coding region for three types of myosin heavy chain (MyHC) isofoms were determined from bovine adult skeletal muscles. The deduced amino acid sequences were 1940, 1938, and 1935 residues for the MyHC-2a, -2x, and -slow, respectively. Like other mammalian MyHC isoforms, the bovine MyHC isoforms had homologous sequences except for substitutions concentrated on the loop 1, loop 2, and light chain binding regions. RT-PCR amplifications showed that the adult bovine skeletal muscles expressed the MyHC-2a, -2x, and -slow isoforms but no -2b isoform. The absence of the MyHC-2b isoform and substitutions on the loop2 region could explain some differences in meat quality between beef and pork. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：87 / 94

页数：8

共 25 条

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