The ADP-ribosylation factor (Arf) family comprises a group of structurally and functionally conserved 21 kDa proteins, which are members of the Ras superfamily of regulatory GTP-binding proteins. Arf is involved in intracellular protein traffic to and within the Golgi complex. Arf has a number of disparate activities including maintenance of organelle integrity, assembly of coat proteins, as a co-factor for cholera toxin and as an activator of phospholipase D. Like other small GTPases, Arf is found to be active when bound to GTP and inactive when bound to GDP. Arf’s activation is dependent upon guanine nucleotide exchange factors (GEFs) which increase the rate of exchange of bound GDP with GTP. All GEFs have a highly conserved Sec7 domain. GEF activity lies in the Sec7 domain and this activity has been shown to be inhibited by the fungal metabolite brefeldin-A (BFA). A small group of GEFs which are insensitive to brefeldin-A (BFA) include cytohesin-1 (B2-1), cytohesin-2 (ARNO), cytohesin-3 (ARNO3), and cytohesin-4. All cytohesins function in the cell periphery and contain a pleckstrin homology (PH) domain. The PH domain has been shown to interact with phosphatidylinositol 3,4,5-triphosphate and is believed to promote membrane targeting of the cytohesins. Recruitment of the cytohesins to the membranes can occur in response to tyrosine kinase receptor activation. This response appears to require the activation of phosphatidylinositol 3-kinase (PI 3-kinase).

ARF exchange factor; ARF nucleotide binding site opener; Arno; ARNO protein; CLM2; CTS18; CTS18.1; Cyth2; Cytohesin 2; MGC137537; MGC80440; PH, SEC7 and coiled-coil domain-containing protein 2; Pleckstrin homology Sec7 and coiled coil domains 2; Pleckstrin homology Sec7 and coiled coil domains protein 2; PSCD2; PSCD2L; PSCD2L, formerly; Sec7; SEC7 homolog B; Sec7B; SEC7L; Sec7p L; Sec7p-like; Sec7pL; CYH2_HUMAN.

Human,Rat,Mouse,Chicken,Dog,Pig,Horse,Sheep

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

47kD

9266

Q99418

https://www.uniprot.org/uniprotkb/Q99418

Cell membrane. Cytoplasm. Note=Both isoform 1 and isoform 2 are recruited to the cell membrane through its association with ARL4A, ARL4C and ARL4D. Requires also interaction with phosphoinositides for targeting to plasma membrane.

Ubiquitous.

KLH conjugated synthetic peptide derived from human Cytohesin 2

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.