Muralidhar K, Rajendrakumar T, Sharma H P
Department of Zoology, University of Delhi.
Indian J Biochem Biophys. 1992 Apr;29(2):168-72.
Lutropin (LH-1) from water buffaloes has been shown to exhibit microheterogeneity in the N-terminal amino-acid sequence of its alpha-subunit. The beta-subunit did not exhibit such microheterogeneity. Another protocol of purification yielded a preparation of buffalo LH (bu LH-2) different from the buffalo LH-1 in certain physico-chemical properties like ease of dissociation into subunits, sugar composition, isoelectric point, and elution profile on S-200. Data appear to indicate the presence of more than one form of buffalo lutropin.
已证明，来自水牛的促黄体素（LH-1）在其α亚基的N端氨基酸序列中表现出微异质性。β亚基未表现出这种微异质性。另一种纯化方案得到了一种水牛促黄体素制剂（水牛LH-2），其在某些物理化学性质上与水牛LH-1不同，如亚基解离的难易程度、糖组成、等电点以及在S-200上的洗脱图谱。数据似乎表明存在不止一种形式的水牛促黄体素。
