FRUCTOSE-1,6-BISPHOSPHATASE IN MANTLE OF THE SEA MUSSEL MYTILUS-GALLOPROVINCIALIS LMK .3. SEASONAL-VARIATION OF ENZYMATIC-ACTIVITY

被引：4

作者：

BARCIA, R ^{[1
]}

IBARGUREN, I ^{[1
]}

RAMOSMARTINEZ, JI ^{[1
]}

机构：

[1] UNIV SANTIAGO COMPOSTELA,FAC VET,DEPT BIOGUIM & BIOL MOLEC,E-27002 LUGO,SPAIN

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 1992年 / 102卷 / 04期

关键词：

D O I：

10.1016/0305-0491(92)90090-E

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

1. Fructose-1,6-bisphosphatase (FBPase-1) from the mantle and the posterior adductor muscle (PAM) of Mytilus galloprovincialis Lmk. was investigated over almost 2 years for changes in specific activity and the apparent Michaelis constant (K(m)) for Fru-1,6-P2 (purified enzyme preparations). 2. The specific activity of the mantle changed, peaking in a period between August and November. 3. The K(m) values for the substrate changed seasonally being low during the first part of the year (January-May) and high in the period between October and November. 4. The changes in mantle FBPase-1 activity were discussed in relation to the effect of modulators and the possible seasonally covalent modification of the enzyme. 5. No statistical changes were detected in posterior adductor muscle FBPase-1, which is in keeping with the glycolytic role suggested for the tissue.

引用

页码：845 / 848

页数：4

共 17 条

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