Function and Biology

RAS GUANINE EXCHANGE FACTOR SOS1 (REM-CDC25) IN COMPLEX WITH KRAS(G12C) AND FRAGMENT SCREENING HIT F3

Source organism: Homo sapiens
Biochemical function: guanyl-nucleotide exchange factor activity
Biological process: small GTPase-mediated signal transduction
Cellular component: membrane

EC 3.6.5.2: Small monomeric GTPase

Reaction catalysed:
GTP + H(2)O = GDP + phosphate
Systematic name:
GTP phosphohydrolase (cell-regulating)

Sequence families

Pfam Protein families (Pfam)
PF00617
Domain description: RasGEF domain
Occurring in:
  1. Son of sevenless homolog 1
The deposited structure of PDB entry 6epo contains 1 copy of Pfam domain PF00617 (RasGEF domain) in Son of sevenless homolog 1. Showing 1 copy in chain B [auth S].

PF00618
Domain description: RasGEF N-terminal motif
Occurring in:
  1. Son of sevenless homolog 1
The deposited structure of PDB entry 6epo contains 1 copy of Pfam domain PF00618 (RasGEF N-terminal motif) in Son of sevenless homolog 1. Showing 1 copy in chain B [auth S].

PF00071
Domain description: Ras family
Occurring in:
  1. GTPase KRas, N-terminally processed
The deposited structure of PDB entry 6epo contains 1 copy of Pfam domain PF00071 (Ras family) in GTPase KRas, N-terminally processed. Showing 1 copy in chain A [auth R].

InterPro InterPro annotations
IPR001895
Domain description: Ras guanine-nucleotide exchange factors catalytic domain
Occurring in:
  1. Son of sevenless homolog 1
IPR000651
Domain description: Ras-like guanine nucleotide exchange factor, N-terminal
Occurring in:
  1. Son of sevenless homolog 1
IPR001806
Domain description: Small GTPase
Occurring in:
  1. GTPase KRas, N-terminally processed
IPR027417
Domain description: P-loop containing nucleoside triphosphate hydrolase
Occurring in:
  1. GTPase KRas, N-terminally processed
IPR019804
Domain description: Ras guanine-nucleotide exchange factor, conserved site
Occurring in:
  1. Son of sevenless homolog 1
IPR036964
Domain description: Ras guanine-nucleotide exchange factor, catalytic domain superfamily
Occurring in:
  1. Son of sevenless homolog 1
IPR008937
Domain description: Ras-like guanine nucleotide exchange factor
Occurring in:
  1. Son of sevenless homolog 1
IPR023578
Domain description: Ras guanine nucleotide exchange factor domain superfamily
Occurring in:
  1. Son of sevenless homolog 1
IPR020849
Domain description: Small GTPase, Ras-type
Occurring in:
  1. GTPase KRas, N-terminally processed
IPR005225
Domain description: Small GTP-binding domain
Occurring in:
  1. GTPase KRas, N-terminally processed

Structure domains

CATH CATH domains
1.10.840.10
Class: Mainly Alpha
Architecture: Orthogonal Bundle
Topology: Son of Sevenless (SoS) protein; Chain S, domain 2
Homology: Ras guanine-nucleotide exchange factors catalytic domain
Occurring in:
  1. Son of sevenless homolog 1
The deposited structure of PDB entry 6epo contains 1 copy of CATH domain 1.10.840.10 (Son of Sevenless (SoS) protein; Chain S, domain 2) in Son of sevenless homolog 1. Showing 1 copy in chain B [auth S].
1.20.870.10
Class: Mainly Alpha
Architecture: Up-down Bundle
Topology: Son of sevenless (SoS) protein; Chain S, domain 1
Homology: Son of sevenless (SoS) protein Chain: S domain 1
Occurring in:
  1. Son of sevenless homolog 1
The deposited structure of PDB entry 6epo contains 1 copy of CATH domain 1.20.870.10 (Son of sevenless (SoS) protein; Chain S, domain 1) in Son of sevenless homolog 1. Showing 1 copy in chain B [auth S].
3.40.50.300
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: Rossmann fold
Homology: P-loop containing nucleotide triphosphate hydrolases
Occurring in:
  1. GTPase KRas, N-terminally processed
The deposited structure of PDB entry 6epo contains 1 copy of CATH domain 3.40.50.300 (Rossmann fold) in GTPase KRas, N-terminally processed. Showing 1 copy in chain A [auth R].