Descriptions

Ras proteins are small GTPases that act as signal transducers between cell surface receptors and several intracellular signaling cascades. They contain highly homologous catalytic domains and flexible C-terminal hypervariable regions (HVRs) that differ across Ras isoforms. KRAS is among the most frequently mutated oncogenes in human tumors. The C-terminal HVR of K-Ras4B directly interacts with the active site of the protein. HVR binding interferes with Ras-Raf interaction, modulates binding to phospholipids, and slightly slows down nucleotide exchange.

Autoinhibitory domains (AIDs)

Target domain

1-165 (Catalytic domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for P79737

Entry ID Method Resolution Chain Position Source
AF-P79737-F1 Predicted AlphaFoldDB

No variants for P79737

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P79737

No associated diseases with P79737

1 regional properties for P79737

Type Name Position InterPro Accession
domain Small GTP-binding protein domain 1 - 158 IPR005225

Functions

Description
EC Number 3.6.5.2 Acting on GTP; involved in cellular and subcellular movement
Subcellular Localization
  • Cell membrane ; Lipid-anchor ; Cytoplasmic side
  • Golgi apparatus membrane ; Lipid-anchor
  • Shuttles between the plasma membrane and the Golgi apparatus
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
Golgi membrane The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

4 GO annotations of molecular function

Name Definition
G protein activity A molecular function regulator that cycles between active GTP-bound and inactive GDP-bound states. In its active state, binds to a variety of effector proteins to regulate cellular processes. Intrinsic GTPase activity returns the G protein to its GDP-bound state. The return to the GDP-bound state can be accelerated by the action of a GTPase-activating protein (GAP).
GDP binding Binding to GDP, guanosine 5'-diphosphate.
GTP binding Binding to GTP, guanosine triphosphate.
GTPase activity Catalysis of the reaction

1 GO annotations of biological process

Name Definition
Ras protein signal transduction The series of molecular signals within the cell that are mediated by a member of the Ras superfamily of proteins switching to a GTP-bound active state.

34 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P08642 HRAS GTPase HRas Gallus gallus (Chicken) SS
P11233 RALA Ras-related protein Ral-A Homo sapiens (Human) PR
Q6T310 RASL11A Ras-like protein family member 11A Homo sapiens (Human) PR
P01116 KRAS GTPase KRas Homo sapiens (Human) EV
P62070 RRAS2 Ras-related protein R-Ras2 Homo sapiens (Human) PR
Q8IYK8 REM2 GTP-binding protein REM 2 Homo sapiens (Human) PR
P11234 RALB Ras-related protein Ral-B Homo sapiens (Human) PR
P55040 GEM GTP-binding protein GEM Homo sapiens (Human) PR
Q99578 RIT2 GTP-binding protein Rit2 Homo sapiens (Human) PR
Q6IQ22 RAB12 Ras-related protein Rab-12 Homo sapiens (Human) PR
Q9BU20 CPLANE2 Ciliogenesis and planar polarity effector 2 Homo sapiens (Human) PR
Q96HU8 DIRAS2 GTP-binding protein Di-Ras2 Homo sapiens (Human) PR
P01112 HRAS GTPase HRas Homo sapiens (Human) SS
Q9JIW9 Ralb Ras-related protein Ral-B Mus musculus (Mouse) PR
Q61411 Hras GTPase HRas Mus musculus (Mouse) SS
P32883 Kras GTPase KRas Mus musculus (Mouse) SS
O08989 Mras Ras-related protein M-Ras Mus musculus (Mouse) PR
Q5PR73 Diras2 GTP-binding protein Di-Ras2 Mus musculus (Mouse) PR
Q91Z61 Diras1 GTP-binding protein Di-Ras1 Mus musculus (Mouse) PR
P62071 Rras2 Ras-related protein R-Ras2 Mus musculus (Mouse) PR
P35283 Rab12 Ras-related protein Rab-12 Mus musculus (Mouse) PR
Q08AT1 Rasl12 Ras-like protein family member 12 Mus musculus (Mouse) PR
A2A825 Cplane2 Ciliogenesis and planar polarity effector 2 Mus musculus (Mouse) PR
P55041 Gem GTP-binding protein GEM Mus musculus (Mouse) PR
P70425 Rit2 GTP-binding protein Rit2 Mus musculus (Mouse) PR
Q8VEL9 Rem2 GTP-binding protein REM 2 Mus musculus (Mouse) PR
P36860 Ralb Ras-related protein Ral-B Rattus norvegicus (Rat) PR
P08644 Kras GTPase KRas Rattus norvegicus (Rat) SS
Q9WTY2 Rem2 GTP-binding protein REM 2 Rattus norvegicus (Rat) PR
P20171 Hras GTPase HRas Rattus norvegicus (Rat) SS
Q5BJQ5 Rit2 GTP-binding protein Rit2 Rattus norvegicus (Rat) PR
P97538 Mras Ras-related protein M-Ras Rattus norvegicus (Rat) PR
B7ZTR0 cplane2 Ciliogenesis and planar polarity effector 2 Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) PR
A1DZY4 zgc:110179 Ras-like protein family member 11A-like Danio rerio (Zebrafish) (Brachydanio rerio) PR
10 20 30 40 50 60
MTEYKLVVVG AGGVGKSALT IQLIQNHFVD EYDPTIEDSY RKQVVIDGET CLLDILDTAG
70 80 90 100 110 120
QEEYSAMRDQ YMRTGEGFLC VFAINNSKSF ADVHLYREQI KRVKDSDDVP MVLVGNICDL
130 140 150 160 170 180
ARTVDTKQAQ ELARSYGIEF VETSAKTRQG VEDAFYTLVR EIRHYRMKKL NSREDRKQGC
LGVSCEVM