Comparison of ligand-binding sites of modeled apo[a] kringle-like sequences in human lipoprotein[a].
Comparison of ligand-binding sites of modeled apo[a] kringle-like sequences in human lipoprotein[a].
复制标题
人脂蛋白[a]中模拟apo[a]三环样序列的配体结合位点的比较。
DOI:
10.1161/01.atv.13.5.758
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
Morrisett,JD
中科院分区:
文献类型:
--
作者:
GuevaraJr,J;Jan,AY;Knapp,R;Tulinsky,A;Morrisett,JD
Human lipoprotein[a] contains at least two high-molecular-weight, disulfide-linked apolipoproteins, apo[a] and apo B-100. Apo[a] is a highly glycosylated, hydrophilic apoprotein that somewhat resembles plasminogen by containing an extended kringle domain and a carboxyl-terminal serine protease domain. The apo[a] kringle domain is composed of 11 distinct kringle types. Ten of these display high sequence homology to plasminogen kringle 4 (PGK4). The crystallographic coordinates for PGK4 were used to generate three-dimensional molecular models of the apo[a] kringle types, and the lysine-binding region of PGK4 was used to compare the different potential receptor-ligand and ligand-binding sites contained in each different PGK4-like kringle of apo[a]. A receptor-ligand site can be proposed for each kringle type. Potential serine protease cleavage sites, containing arginine-threonine and threonine-arginine, are located on the surface of the kringles. The ligand-binding site of one apo[a] kringle model is almost identical to that of PGK4 and may be a lysine-binding site of apo[a]. Four other apo[a] kringle models appear to have structurally similar lysine-binding sites, but with differences that may influence ligand-polypeptide specificity. Five apo[a] kringle models have ligand-binding sites that probably do not bind lysine; one of these is the highly repeated kringle in the known apo[a] polymorph.
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影响因子:
2.9
作者:
EHNHOLM, C;RENKONEN, O;GAROFF, H
通讯作者:
GAROFF, H
DOI:
10.1073/pnas.84.10.3224
发表时间:
1987-05-01
影响因子:
11.1
作者:
EATON, DL;FLESS, GM;SCANU, AM
通讯作者:
SCANU, AM
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
J. Morrisett;J. Gaubatz;R. Knapp;J. Guevara
通讯作者:
J. Guevara
影响因子:
--
作者:
S. Magnusson;L. Sottrup;T. Petersen;H. Claeys
通讯作者:
H. Claeys
影响因子:
6.7
作者:
W. Nieuwenhuizen;D. Traas
通讯作者:
D. Traas