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Titolo:
MUSCLE-TYPE TROPOMYOSIN OF SEA-URCHIN EGG INCREASES THE ACTIN-BINDINGOF NONMUSCLE-TYPE TROPOMYOSIN
Autore:
TOBITA T; HIRAIDE F; MIYAZAKI J; ISHIMODATAKAGI T;
Indirizzi:
UNIV TSUKUBA,INST BIOL SCI,TENNOUDAI 1-1-1 TSUKUBA IBARAKI 305 JAPAN UNIV TSUKUBA,INST BIOL SCI TSUKUBA IBARAKI 305 JAPAN TOKYO GAKUGEI UNIV,DEPT BIOL KOGANEI TOKYO 184 JAPAN
Titolo Testata:
Journal of Biochemistry
fascicolo: 5, volume: 120, anno: 1996,
pagine: 922 - 928
SICI:
0021-924X(1996)120:5<922:MTOSEI>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHICKEN-EMBRYO FIBROBLASTS; MODULATING PROTEINS; SKELETAL-MUSCLE; FUNCTIONAL-PROPERTIES; TRANSFORMED-CELLS; STARFISH OOCYTES; ALPHA-ACTININ; ISOFORMS; CORTEX; FERTILIZATION;
Keywords:
ACTIN-BINDING ABILITY; HEAD-TO-TAIL INTERACTION; MUSCLE-TYPE ISOFORM; NONMUSCLE-TYPE ISOFORM; SEA URCHIN EGG TROPOMYOSIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
T. Tobita et al., "MUSCLE-TYPE TROPOMYOSIN OF SEA-URCHIN EGG INCREASES THE ACTIN-BINDINGOF NONMUSCLE-TYPE TROPOMYOSIN", Journal of Biochemistry, 120(5), 1996, pp. 922-928

Abstract

Tropomyosin isoforms in eggs of several species of sea urchins are classified into two types, muscle-type and nonmuscle-type, based on their antigenicities, Their actin-binding abilities were investigated using muscle-type isoform (32K) and nonmuscle-type isoform (30K), which were purified by the method previously reported and separated by isoelectric focusing from eggs of sea urchin, Strongylocentrotus intermedius. Go-sedimentation assays revealed that 32K could stoichiometrically bind to actin filaments independently of the 30K, but 30K alone bound very poorly, The actin-binding of 30K was, however, considerably increased in the presence of 32K, and the molar ratio of the bound 30K and 32K was approximately 1:1. The increase in the actin-binding of 30K is probably caused by the interaction of 30K with 32K in a head-to-tail manner, as indicated by the higher specific viscosity of the mixture than that of 32K alone.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:52:37