Accession ID	Name	Pfam Type
PF00618	RasGEF N-terminal motif	domain

A subset of guanine nucleotide exchange factor for Ras-like small GTPases appear to possess this motif/domain N-terminal to the RasGef (Cdc25-like) domain.

Pfam Range: 412-506 DPAM-Pfam Range: 410-543,629-892

Uniprot ID: C8VT82

Pfam Range: 638-779 DPAM-Pfam Range: 621-634,636-683,693-694,929-1259

Uniprot ID: P27671

Pfam Range: 519-629 DPAM-Pfam Range: 480-554,562-610,616-617,621-661

Uniprot ID: P34578

References

1: Proteins regulating Ras and its relatives. Boguski MS, McCormick F; Nature 1993;366:643-654. PMID:8259209

2: Guanine nucleotide exchange factors: activators of the Ras superfamily of proteins. Quilliam LA, Khosravi-Far R, Huff SY, Der CJ; Bioessays 1995;17:395-404. PMID:7786285

3: Guanine-nucleotide-releasing factor hSos1 binds to Grb2 and links receptor tyrosine kinases to Ras signalling. Li N, Batzer A, Daly R, Yajnik V, Skolnik E, Chardin P, Bar-Sagi D, Margolis B, Schlessinger J; Nature 1993;363:85-88. PMID:8479541

4: The function of GRB2 in linking the insulin receptor to Ras signaling pathways. Skolnik EY, Batzer A, Li N, Lee CH, Lowenstein E, Mohammadi M, Margolis B, Schlessinger J; Science 1993;260:1953-1955. PMID:8316835