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CYTH2

The protein encoded by this gene is a member of the PSCD family. Members of this family have identical structural organization that consists of an N-terminal coiled-coil motif, a central Sec7 domain, and a C-terminal pleckstrin homology (PH) domain. The coiled-coil motif is involved in homodimerization, the Sec7 domain contains guanine-nucleotide exchange protein (GEP) activity, and the PH domain interacts with phospholipids and is responsible for association of PSCDs with membranes. Members of this family appear to mediate the regulation of protein sorting and membrane trafficking. The encoded protein exhibits GEP activity in vitro with ARF1, ARF3, and ARF6 and is 83% homologous to CYTH1. Two transcript variants encoding different isoforms have been found for this gene.
Protein class

Plasma proteins

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Early spermatids)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Heteromer. Composed of TAMALIN, CYTH2 and at least one GRM1 (By similarity). Interacts with ARRB1 (PubMed:17623778, PubMed:17398095). Interacts with ARL4D; the interaction is direct (PubMed:17398095). Directly interacts with CCDC120 through the coiled coil domain; this interaction stabilizes CCDC120, possibly by preventing its ubiquitination, and is required for neurite growth in neuroblastoma cells (PubMed:25326380). Interacts with ARF1 (PubMed:14654833). Interacts with FRMD4A (By similarity). Interacts (via N-terminal domain) with INAVA (via N-terminal domain) (PubMed:29420262).

Molecular function

Guanine-nucleotide releasing factor

More Types Infomation

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For Research Use Only. Not For Clinical Use.

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