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Overview

permease

A membrane-bound protein in bacteria that is responsible for transport of a specific substance in or out of the cell; sometimes referred to as a transport protein. In E. coli, lactose ...

permease

permease   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
12 words

... a historical designation of some specific transport proteins; transporter is...

permease

permease   Quick reference

A Dictionary of Genetics (8 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Life Sciences
Length:
39 words

... a membrane-bound protein in bacteria that is responsible for transport of a specific substance in or out of the cell; sometimes referred to as a transport protein . In E. coli , lactose permease actively transports lactose into the...

permease

permease   Quick reference

A Dictionary of Biomedicine (2 ed.)

Reference type:
Subject Reference
Current Version:
2019

...permease A general term for a membrane protein that selectively increases the permeability of the plasma membrane to a particular molecule. See facilitated diffusion ....

permease

permease   Quick reference

A Dictionary of Plant Sciences (4 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Life Sciences
Length:
50 words

... One of a class of proteins that act as carrier molecules in cells, facilitating the active or passive transport of various substances across membranes. They have many of the characteristics of enzymes with the exception that they may greatly alter the point of equilibrium of a...

permease

permease   Quick reference

A Dictionary of Zoology (5 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Science and technology, Life Sciences
Length:
49 words

... One of a class of proteins that act as carrier molecules in cells, facilitating the active or passive transport of various substances across membranes. They have many of the characteristics of enzymes with the exception that they may greatly alter the point of equilibrium of a reaction....

lactose permease

lactose permease   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
26 words

...permease an H + ‐lactose symporter in Escherichia coli . It has 12 transmembrane helices but is not very closely related to most other members of the...

β‐galactoside permease

β‐galactoside permease   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
74 words

...‐galactoside permease any of several transport proteins in bacteria that facilitate the uptake of β ‐galactosides. An example is melibiose carrier protein from Klebsiella pneumoniae . This is responsible for melibiose transport; it is capable of using hydrogen and lithium cations as coupling cations for cotransport, depending on the particular sugar transported (e.g. H + ‐melibiose, Li + ‐lactose), but cannot recognize Na + ions although it is an integral membrane protein of the sodium:galactoside symporter family. See also lactose permease...

permease

permease  

A membrane-bound protein in bacteria that is responsible for transport of a specific substance in or out of the cell; sometimes referred to as a transport protein. In E. coli, lactose permease ...
lactose permease

lactose permease  

An H+‐lactose symporter in Escherichia coli. It has 12 transmembrane helices but is not very closely related to most other members of the superfamily.
amino acid permeases

amino acid permeases   Quick reference

A Dictionary of Biomedicine (2 ed.)

Reference type:
Subject Reference
Current Version:
2019

...amino acid permeases A family of integral membrane proteins involved in the transport of amino acids into the cell. The term is usually applied to the family of transporters in yeast ( Saccharomyces ), which include general permeases that allow several different amino acids to pass and others that are more...

β-galactoside permease

β-galactoside permease  

Any of several transport proteins in bacteria that facilitate the uptake of β‐galactosides. An example is melibiose carrier protein from Klebsiella pneumoniae. This is responsible for melibiose ...
amino acid permeases

amino acid permeases  

A family of integral membrane proteins involved in the transport of amino acids into the cell. The term is usually applied to the family of transporters in yeast (Saccharomyces), which include ...
major facilitator superfamily domain-containing proteins

major facilitator superfamily domain-containing proteins  

Reference type:
Overview Page
A large family of transporters (MFSDs) with ten to twelve membrane-spanning domains found in bacteria, archaea, and eukaryotes that act as permeases for simple sugars, oligosaccharides, inositols, ...
lacY

lacY  

A gene in Escherichia coli for lactose permease.
lactose operon

lactose operon  

Reference type:
Overview Page
A group of adjacent and coordinately controlled genes for lactose metabolism in E. coli, chiefly famous because it was the first example of this type of gene regulation. The operator region of the ...
Gap1p

Gap1p  

abbr. for general amino acid permease protein 1; a membrane protein of Saccharomyces cerevisiae that permits uptake of amino acids. It is induced by nitrogen starvation. If the yeasts are ...
coordinated enzymes

coordinated enzymes  

Enzymes whose rates of production vary together. For example, the addition of lactose to the medium causes the coordinated induction of beta-galactosidase and beta-galactoside permease in E. coli. ...
flucytosine

flucytosine  

An antimetabolite that interferes with fungal DNA synthesis and is used against some strains of Candida and Cryptococcus. It is taken up via the cytosine permease and rapidly converted into ...
lac operon

lac operon  

The operon that regulates lactose metabolism in the bacterium Escherichia coli. Its form was first postulated in 1961 by François Jacob (1920– ) and Jacques Monod (1910–76) to explain control of ...
carrier

carrier  

In genetics and pathology, an organism that does not itself manifest a particular trait or disease but is capable of passing it on to others.

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