Cross-linking of Plasminogen Activator Inhibitor 2 and α2-Antiplasmin to Fibrin(ogen)*
Cross-linking of Plasminogen Activator Inhibitor 2 and α2-Antiplasmin to Fibrin(ogen)*
复制标题
纤溶酶原激活剂抑制剂 2 和 α2-抗纤溶酶与纤维蛋白(原)的交联*
DOI:
--
复制
发表时间:
2000
影响因子:
4.8
通讯作者:
N. Booth
中科院分区:
文献类型:
--
作者:
H. Ritchie;L. Lawrie;Patricia W. Crombie;M. Mosesson;N. Booth
In this study, we identified lysine residues in the fibrinogen Aα chain that serve as substrates during transglutaminase (TG)-mediated cross-linking of plasminogen activator inhibitor 2 (PAI-2). Comparisons were made with α2-antiplasmin (α2-AP), which is known to cross-link to lysine 303 of the Aα chain. A 30-residue peptide containing Lys-303 specifically competed with fibrinogen for cross-linking to α2-AP but not for cross-linking to PAI-2. Further evidence that PAI-2 did not cross-link via Lys-303 was the cross-linking of PAI-2 to I-9 and des-αC fibrinogens, which lack 100 and 390 amino acids from the C terminus of the Aα chain, respectively. PAI-2 or α2-AP was cross-linked to fibrinogen and digested with trypsin or endopeptidase Glu-C, and the resulting peptides analyzed by mass spectrometry. Peptides detected were consistent with tissue TG (tTG)-mediated cross-linking of PAI-2 to lysines 148, 176, 183, 457 and factor XIIIa-mediated cross-linking of PAI-2 to lysines 148, 230, and 413 in the Aα chain. α2-AP was cross-linked only to lysine 303. Cross-linking of PAI-2 to fibrinogen did not compete with α2-AP, and the two proteins utilized different lysines in the Aα chain. Therefore, PAI-2 and α2-AP can cross-link simultaneously to the α polymers of a fibrin clot and promote resistance to lysis.
登录
查看更多内容
DOI:
10.1073/pnas.97.1.85
发表时间:
2000-01-04
影响因子:
11.1
作者:
Brown, JH;Volkmann, N;Cohen, C
通讯作者:
Cohen, C
DOI:
10.1016/s0021-9258(19)38688-0
发表时间:
1993-06
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Y. Veklich;O. Gorkun;L. Medved;W. Nieuwenhuizen;J. Weisel
通讯作者:
Y. Veklich;O. Gorkun;L. Medved;W. Nieuwenhuizen;J. Weisel
影响因子:
37.8
作者:
Bonadonna, RC;Saccomani, MP;Cobelli, C
通讯作者:
Cobelli, C
DOI:
10.1021/bi952264h
发表时间:
1996
期刊:
Biochemistry.
影响因子:
--
作者:
Siebenlist,KR;Mosesson,MW
通讯作者:
Mosesson,MW
DOI:
--
发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Siebenlist,KR;Mosesson,MW
通讯作者:
Mosesson,MW