Inhibition of glycolysis in boar sperm by alpha-chlorohydrin.

Abstract:

:The effect of alpha-chlorohydrin (3-chloropropan-1,2-diol) on the metabolism of D-[U-14C]-fructose and L-[U-14C]-lactate by washed boar sperm has been investigated. Whereas alpha-chlorohydrin at concentrations as low as 0.1 mM inhibited the metabolism of fructose and led to an increase in the utilization of endogenous lactate, amounts up to 500 mM had no effect on the oxidation of added lactate. Low levels of alpha-chlorohydrin increased the cellular concentrations of fructose-1,6-bisphosphate and the triosephosphates, an effect consistent with the inhibition of glyceraldehyde-3-phosphate dehydrogenase. Although [U-14C]-glycerol was rapidly oxidized by boar sperm, [U-14C]-alpha-chlorohydrin was not metabolized to 14CO2, showing that it is not converted to glycerol. Extracts obtained by sonication of boar sperm after incubation with [3-36C1]-alpha-chlorohydrin, did not contain [3-36C1]-alpha-chlorohydrin-1-phosphate. This is contrary to the postulate that this phosphorylated compound is the inhibitory metabolite of alpha-chlorohydrin.

journal_name

Contraception

journal_title

Contraception

authors

Hutton P,Dawson AG,Jones AR

doi

10.1016/0010-7824(80)90103-1

subject

Has Abstract

pub_date

1980-11-01 00:00:00

pages

505-12

issue

5

eissn

0010-7824

issn

1879-0518

pii

0010-7824(80)90103-1

journal_volume

22

pub_type

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