permease

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Related to permease: transacetylase

per·me·ase

(per'mē-ās),

Any of a group of membrane-bound carriers (enzymes) that effect the transport of solute through a semipermeable membrane; this term is not typically used to describe eukaryotes.

Farlex Partner Medical Dictionary © Farlex 2012

permease

(pûr′mē-ās′)

Any of several cell-membrane proteins that function as channels for the passive transport of a specific molecule in or out of the cell.

per·me·ase

(pĕr'mē-ās)

Any of a group of membrane-bound carriers (enzymes) that cause transport of solute through a semipermeable membrane.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

permease

a protein thought to act as a carrier in ACTIVE TRANSPORT within membranes.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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References in periodicals archive ?

The major permease responsible for high-affinity phenylalanine transport is Bap2p, rather than the broad-specificity permease, Agp1p (Figure 1).

L-phenylalanine transport in Saccharomyces cerevisiae: Participation of GAP1, BAP2, and AGP1

(1996) Identification of the epitope for monoclonal antibody 4B1 which uncouples lactose and proton translocation in the lactose permease of Escherichia coli.

Bio-recognition and functional lipidomics by glycosphingolipid transfer technology

Ferrichrome and ferriox- amine each have a separate substrate binding protein (FhuD and YxeB, respectively), but require the same membrane permease using an ATPase (FhuBGC) [29, 32].

Production, Regulation and Transportation of Bacillibactin in Bacillus Subtilis

(2007) TOR-induced resistance to toxic adenosine analogs in Leishmania brought about by the internalization and degradation of the adenosine permease. Exp.

Mapping of the functional domains of TOR, an adaptor protein regulating protein trafficking in Leishmania

C, co-transporter; DMT1, divalent metal-ion transporter-l; NRAMP1, natural resistance-associated macrophage protein-1; SLC, Solute Carriers; ZIP, zinc-iron permease family of proteins: ZNT, zinc transporter proteins Table II.

Iron transport & homeostasis mechanisms: their role in health & disease

This dual role would be analogous to the sugar permease BglF in Escherichia coli and the yeast ammonium transporter Mep2p.

Understanding and improving salt tolerance in plants

(15) Autosomal dominant familial AD involves mutations in the amino acid permease (APP) gene.

Alzheimer disease and other dementias

Under most growing conditions it appears that organic anions are excreted via membrane-bound 'permease' proteins.

Progress in selected areas of rhizosphere research on P acquisition

Based on genetic and biochemical study, the lactose permease of Escherichia coli is a model system for this research.

The effect of charged amino acid mutations in hydrophobic transmembrane domain III in the lactose permease of Escherichia coli. (Medical Science and Health Poster Session 09:00 AM-10:00 AM)

Carbodiimide chemistry research interest focused as a tool to aid nucleotide and peptide synthesis and as permease inhibition.

A new liquid carbodiimide hydrolytic stabilizer for ester polyurethanes and TPUs

nidulans (Brownlee and Arst 1983), which causes a nitrate permease with a lower affinity for chlorate, and in young mycelium also for nitrate.

Test of interaction between genetic markers that affect fitness in Aspergillus niger