Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several enzymes that transport membrane proteins.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

perme(ate) + -ase.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Perme(ate) + -ase.

Examples

  • The products of that successful lactose metabolism then activate the gene for the lac permease, which ensures a steady supply of lactose entering the cell.

    Coopting cooption - The Panda's Thumb

  • Irreducible complexity, what good would the permease be without the galactosidase?

    Coopting cooption - The Panda's Thumb

  • An example of the latter model is the beta galactosidase induction in E. coli which is maintained by inducer concentrations much smaller than that required for initiating induction, because inducer is pumped into the cells by the induced permease

    Renato Dulbecco - Nobel Lecture

  • This strain produces elevated levels of two enzymes, maltose permease and maltase, involved in starch degradation.

    1 Upgrading Traditional Biotechnological Processes

  • Nirenberg's thesis, performed under the guidance of Dr. James Hogg, was a study of a permease for hexose transport in ascites tumor cells.

    Marshall W. Nirenberg - Biography

  • (Microbacterium hydantoin permease 1) - the transporter protein responsible for transporting molecules called hydantoins into cells, where they are converted into amino acids, the building blocks of proteins.

    Nano Tech Wire

  • Niegemann E, Schulz A, Bartsch K (1993) Molecular organization of the Escherichia coli gab cluster: nucleotide sequence of the structural genes gabD and gabP and expression of the GABA permease gene.

    PLoS ONE Alerts: New Articles

  • Seth A, Connell ND (2000) A peptide permease mutant of

    PLoS ONE Alerts: New Articles

  • Bacillus subtilis is homologous to the oligopeptide permease locus and is required for sporulation and competence.

    PLoS ONE Alerts: New Articles

  • Friml J, Marchant A, Ljung K, Sandberg G, et al. (2001) Localization of the auxin permease AUX1 suggests two functionally distinct hormone transport pathways operate in the Arabidopsis root apex.

    PLoS ONE Alerts: New Articles

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