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Rap guanine nucleotide exchange factor 6 (PDZ domain-containing guanine nucleotide exchange factor 2, PDZ-GEF2, RA-GEF-2, RAPGEF6, PDZGEF2)
Function:
1) guanine nucleotide exchange factor (GEF) for Rap1A, Rap2A & M-Ras GTPases
2) does not interact with cAMP
3) interacts with the second PDZ domain of human PTP1e
Compartment:
- cytoplasm
- upon binding to M-Ras, translocates to plasma membrane
Alternative splicing: named isoforms=3
Expression:
- expressed in brain, heart, liver, lung, placenta > skeletal muscle, kidney, pancreas (isoform 3)
General
guanine nucleotide exchange factor (GDP/GTP dissociation stimulator, guanine nucleotide-releasing factor/protein, GNEF, GNDS, GDS)
phosphoprotein
Properties
SIZE: MW = 179 kD
entity length = 1601 aa
MOTIF: guanine nucleotide exchange domain
NAME: guanine nucleotide exchange domain
SITE: 412-526
PDZ domain
NAME: PDZ domain
SITE: 530-615
RAS-ASSOCIATING {749-835}
guanine nucleotide exchange domain
NAME: guanine nucleotide exchange domain
SITE: 860-1088
serine-rich region {1229-1440}
MOTIF: serine residue (SEVERAL)
Ser phosphorylation site {S1494}
Database Correlations
UniProt Q8TEU7
PFAM correlations
References
UniProt :accession Q8TEU7