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Rho guanine nucleotide exchange factor 6; alpha-Pix; COOL-2; PAK-interacting exchange factor alpha; Rac/Cdc42 guanine nucleotide exchange factor 6 (ARHGEF6, COOL2, KIAA0006, PIXA)

Function: - acts as a RAC1 guanine nucleotide exchange factor (GEF) - interacts with PAK kinases through the SH3 domain - interacts with GIT1 - component of cytoplasmic complexes, which also contain PXN, GIT1 & PAK1 (putative) Structure: - contains 1 CH (calponin-homology) domain - contains 1 DH (DBL-homology) domain - contains 1 PH domain - contains 1 SH3 domain Alternative splicing: named isoforms=2 Expression: ubiquitous Pathology: - defects in ARHGEF6 are the cause of mental retardation X-linked type 46

General

phosphoprotein rho guanine nucleotide exchange factor

Properties

SIZE: entity length = 776 aa MW = 87 kD COMPARTMENT: cell nucleus MOTIF: calponin homology domain NAME: calponin homology domain SITE: 1-110 Ser phosphorylation site {S122} Ser phosphorylation site {S126} Ser phosphorylation site {S144} Ser phosphorylation site {S150} src homology 3 [SH3] domain SITE: 160-219 MOTIF: Tyr phosphorylation site {Y188} Ser phosphorylation site {S225} Dbl homology domain {241-421} PH domain {443-548} MOTIF: Ser phosphorylation site {S488} Ser phosphorylation site {S640} Thr phosphorylation site {T650} Ser phosphorylation site {S684}

Database Correlations

OMIM correlations UniProt Q15052 PFAM correlations Entrez Gene 9459 Kegg hsa:9459

References

  1. UniProt :accession Q15052
  2. GeneReviews http://www.ncbi.nlm.nih.gov/sites/genetests/lab/gene/ARHGEF6