The Prosegments of Furin and PC7 as Potent Inhibitors of Proprotein Convertases
The Prosegments of Furin and PC7 as Potent Inhibitors of Proprotein Convertases
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Furin 和 PC7 的组合作为前蛋白转化酶的有效抑制剂
DOI:
--
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发表时间:
1999
影响因子:
4.8
通讯作者:
N. Seidah
中科院分区:
文献类型:
--
作者:
Mei Zhong;J. S. Munzer;A. Basak;S. Benjannet;S. Mowla;E. Decroly;M. Chrétien;N. Seidah
All proprotein convertases (PCs) of the subtilisin/kexin family contain an N-terminal prosegment that is presumed to act both as an intramolecular chaperone and an inhibitor of its parent enzyme. In this work, we examined inhibition by purified, recombinant bacterial prosegments of furin and PC7 on the in vitro processing of either the fluorogenic peptide pERTKR-MCA or the human immunodeficiency virus envelope glycoprotein gp160. These propeptides are potent inhibitors that display measurable selectivity toward specific proprotein convertases. Small, synthetic decapeptides derived from the C termini of the prosegments are also potent inhibitors, albeit less so than the full-length proteins, and the C-terminal P1 arginine is essential for inhibition. The bacterial, recombinant prosegments were also used to generate specific antisera, allowing us to study the intracellular metabolic fate of the prosegments of furin and PC7 expressed via vaccinia virus constructs. These vaccinia virus recombinants, along with transient transfectants of the preprosegments of furin and PC7, efficiently inhibited theex vivo processing of the neurotrophins nerve growth factor and brain-derived neurotrophic factor. Thus, we have demonstrated for the first time that PC prosegments, expressed ex vivo as independent domains, can act in trans to inhibit precursor maturation by intracellular PCs.
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影响因子:
11.4
作者:
MOLLOY, SS;THOMAS, L;THOMAS, G
通讯作者:
THOMAS, G
DOI:
10.1016/s0021-9258(19)74548-7
发表时间:
1993-11
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Eric David Anderson;L. Thomas;J. Hayflick;G. Thomas
通讯作者:
Eric David Anderson;L. Thomas;J. Hayflick;G. Thomas
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lu,W;Zhang,W;Molloy,SS;Thomas,G;Ryan,K;Chiang,Y;Anderson,S;LaskowskiJr,M
通讯作者:
LaskowskiJr,M
DOI:
10.1073/pnas.89.21.10277
发表时间:
1992-11-01
影响因子:
11.1
作者:
KLIMPEL, KR;MOLLOY, SS;LEPPLA, SH
通讯作者:
LEPPLA, SH
影响因子:
16
作者:
Sakai, J;Rawson, RB;Brown, MS
通讯作者:
Brown, MS