Kinetics of inhibition of sperm beta-acrosin activity by suramin.

Abstract:

:Sperm beta-acrosin activity is inhibited by suramin, a polysulfonated naphthylurea compound with therapeutic potential as a combined antifertility agent and microbicide. A kinetic analysis of enzyme inhibition suggests that three and four molecules of suramin bind to one molecule of ram and boar beta-acrosins respectively. Surface charge distribution models of boar beta-acrosin based on its crystal structure indicate several positively charged exosites that represent potential 'docking' regions for suramin. It is hypothesised that the spatial arrangement and distance between these exosites determines the capacity of beta-acrosin to bind suramin.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Hermans JM,Haines DS,James PS,Jones R

doi

10.1016/s0014-5793(03)00488-5

keywords:

subject

Has Abstract

pub_date

2003-06-05 00:00:00

pages

119-22

issue

1-3

eissn

0014-5793

issn

1873-3468

pii

S0014579303004885

journal_volume

544

pub_type

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