1991•Journal of BacteriologyOpen access

MAL11 and MAL61 encode the inducible high-affinity maltose transporter of Saccharomyces cerevisiae

Qi Cheng, Corinne A. Michels

Open full text 81 citations

Abstract

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 Km of 4 mM and a low-affinity transporter with a Km 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.

About this research paper

What this paper is about

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 Km of 4 mM and a low-affinity transporter with a Km 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.

Why it matters

OpenAlex reports 81 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

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 Km of 4 mM and a low-affinity transporter with a Km 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.

Key concepts: Maltose, Saccharomyces cerevisiae, Transporter, Biology, Biochemistry, Saccharomyces, Maltose-binding protein, Glucose transporter

Related papers

Back to paper searchBrowse research topicsOriginal source
MAL11 and MAL61 encode the inducible high-affinity maltose transporter of Saccharomyces cerevisiae — Research Paper | ScholarLens