MAL11 AND MAL61 ENCODE THE INDUCIBLE HIGH-AFFINITY MALTOSE TRANSPORTER OF SACCHAROMYCES-CEREVISIAE

被引：61

作者：

CHENG, Q ^{[1
]}

MICHELS, CA ^{[1
]}

机构：

[1] CUNY,GRAD SCH,FLUSHING,NY 11367

来源：

JOURNAL OF BACTERIOLOGY | 1991年 / 173卷 / 05期

关键词：

D O I：

10.1128/jb.173.5.1817-1820.1991

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

We have investigated the transport of maltose in a genetically defined maltose-fermenting strain of Saccharomyces cerevisiae carrying the MAL1 locus. Two kinetically different systems were identified: a high-affinity transporter with a K(m) of 4 mM and a low-affinity transporter with a K(m) of 70 to 80 mM. The high-affinity maltose transporter is maltose inducible and is encoded by the MAL11 (and/or MAL61) gene of the MAL1 (and/or MAL6) locus. The low-affinity maltose transporter is expressed constitutively and is not related to MAL11 and/or MAL61. Both maltose transporters are subject to glucose-induced inactivation.

引用

页码：1817 / 1820

页数：4

共 22 条

[1]

Barnett JA, 1976, ADV CARBOHYD CHEM, V32, P126

[2] IDENTIFICATION OF 2 FORMS OF THE MALTOSE TRANSPORT-SYSTEM IN SACCHAROMYCES-CEREVISIAE AND THEIR REGULATION BY CATABOLITE INACTIVATION [J].