ectoenzyme


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ectoenzyme

[¦ek·tō′en‚zīm]
(biochemistry)
An enzyme which is located on the external surface of a cell.
References in periodicals archive ?
Ectoenzyme nucleotide pyrophosphate phosphodiesterase (ENPP1): ENPP1 (also known as PC-1, plasma cell differentiation antigen 1) has been identified as a factor potentially contributes to IR by binding to INSR and affecting its signaling.
The test detects upregulation of CD203c, an ectoenzyme expressed only on basophils, mast cells, and CD34-positive progenitor cells in peripheral blood as a marker of cell activation, said Dr.
Lymphocyte ectoenzyme activity compared in healthy persons and patients seropositive to or at high risk of HIV infection.
Ectoenzyme potentials profiles can indicate substrate availability, important substrates for growth, as well as changes in community composition in environmental samples (Sinsabaugh & Foreman 2001, Taylor et al.
5; 5NT), an intrinsic membrane glycoprotein present as an ectoenzyme in a wide variety of mammalian cells, hydrolyzes 5'-nucleotides to their corresponding nucleosides (1).
28) is an ectoenzyme located on the brush border membrane of mammalian kidney and small intestine.
These esterases, also known as ectoenzymes or ectoesterases, play a mediating role in regulation of AM response to various external and internal agents [22].
In fact, Cell wall degradation occurs not in the immediate vicinity of the hyphal sheath or out of the lumen (fig 1-8), but the ectoenzymes of the brown rot fungi must first diffuse very deeply into the cell wall through the S3 layer, to degrade the cellulose-rich S2 layer.