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

1-166 (Catalytic domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for P08642

Entry ID Method Resolution Chain Position Source
AF-P08642-F1 Predicted AlphaFoldDB

6 variants for P08642

Variant ID(s) Position Change Description Diseaes Association Provenance
rs732516993 14 V>G No EVA
rs734024337 17 S>R No EVA
rs317301192 49 E>G No EVA
rs741114247 62 E>G No EVA
rs732187211 63 E>G No EVA
rs737449462 163 I>T No EVA

No associated diseases with P08642

1 regional properties for P08642

Type Name Position InterPro Accession
domain Small GTP-binding protein domain 1 - 159 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

6 GO annotations of cellular component

Name Definition
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
glutamatergic synapse A synapse that uses glutamate as a neurotransmitter.
Golgi membrane The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
GTPase complex A protein complex which is capable of GTPase activity.
nucleoplasm That part of the nuclear content other than the chromosomes or the nucleolus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

5 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
protein-membrane adaptor activity The binding activity of a molecule that brings together a protein or a protein complex with a membrane, or bringing together two membranes, either via membrane lipid binding or by interacting with a membrane protein, to establish or maintain the localization of the protein, protein complex or organelle.

33 GO annotations of biological process

Name Definition
adipose tissue development The process whose specific outcome is the progression of adipose tissue over time, from its formation to the mature structure. Adipose tissue is specialized tissue that is used to store fat.
cellular response to gamma radiation Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a gamma radiation stimulus. Gamma radiation is a form of electromagnetic radiation (EMR) or light emission of a specific frequency produced from sub-atomic particle interaction, such as electron-positron annihilation and radioactive decay. Gamma rays are generally characterized as EMR having the highest frequency and energy, and also the shortest wavelength, within the electromagnetic radiation spectrum.
defense response to protozoan Reactions triggered in response to the presence of a protozoan that act to protect the cell or organism.
endocytosis A vesicle-mediated transport process in which cells take up external materials or membrane constituents by the invagination of a part of the plasma membrane to form a new membrane-bounded vesicle.
fibroblast proliferation The multiplication or reproduction of fibroblast cells, resulting in the expansion of the fibroblast population.
insulin receptor signaling pathway The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
intrinsic apoptotic signaling pathway The series of molecular signals in which an intracellular signal is conveyed to trigger the apoptotic death of a cell. The pathway starts with reception of an intracellular signal (e.g. DNA damage, endoplasmic reticulum stress, oxidative stress etc.), and ends when the execution phase of apoptosis is triggered. The intrinsic apoptotic signaling pathway is crucially regulated by permeabilization of the mitochondrial outer membrane (MOMP).
myelination The process in which myelin sheaths are formed and maintained around neurons. Oligodendrocytes in the brain and spinal cord and Schwann cells in the peripheral nervous system wrap axons with compact layers of their plasma membrane. Adjacent myelin segments are separated by a non-myelinated stretch of axon called a node of Ranvier.
negative regulation of cell population proliferation Any process that stops, prevents or reduces the rate or extent of cell proliferation.
negative regulation of gene expression Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA).
negative regulation of neuron apoptotic process Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons.
neuron apoptotic process Any apoptotic process in a neuron, the basic cellular unit of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system.
oncogene-induced cell senescence A cellular senescence process associated with the dismantling of a cell as a response to oncogenic stress, such as the activation of the Ras oncogenic family.
positive regulation of cell migration Any process that activates or increases the frequency, rate or extent of cell migration.
positive regulation of epithelial cell proliferation Any process that activates or increases the rate or extent of epithelial cell proliferation.
positive regulation of ERK1 and ERK2 cascade Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
positive regulation of fibroblast proliferation Any process that activates or increases the frequency, rate or extent of multiplication or reproduction of fibroblast cells.
positive regulation of JNK cascade Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the JNK cascade.
positive regulation of miRNA metabolic process Any process that activates or increases the frequency, rate or extent of miRNA metabolic process.
positive regulation of protein phosphorylation Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
positive regulation of protein targeting to membrane Any process that increases the frequency, rate or extent of the process of directing proteins towards a membrane, usually using signals contained within the protein.
positive regulation of ruffle assembly Any process that activates or increases the frequency, rate or extent of ruffle assembly.
positive regulation of transcription by RNA polymerase II Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
positive regulation of type II interferon production Any process that activates or increases the frequency, rate, or extent of interferon-gamma production. Interferon-gamma is also known as type II interferon.
positive regulation of wound healing Any process that increases the rate, frequency, or extent of the series of events that restore integrity to a damaged tissue, following an injury.
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.
regulation of actin cytoskeleton organization Any process that modulates the frequency, rate or extent of the formation, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
regulation of cell cycle Any process that modulates the rate or extent of progression through the cell cycle.
regulation of long-term neuronal synaptic plasticity A process that modulates long-term neuronal synaptic plasticity, the ability of neuronal synapses to change long-term as circumstances require. Long-term neuronal synaptic plasticity generally involves increase or decrease in actual synapse numbers.
regulation of neurotransmitter receptor localization to postsynaptic specialization membrane Any process that modulates the frequency, rate or extent of neurotransmitter receptor localization to postsynaptic specialization membrane.
Schwann cell development The process aimed at the progression of a Schwann cell over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell. Schwann cells are found in the peripheral nervous system, where they insulate neurons and axons, and regulate the environment in which neurons function.
T cell receptor signaling pathway The series of molecular signals initiated by the cross-linking of an antigen receptor on a T cell.
T-helper 1 type immune response An immune response which is associated with resistance to intracellular bacteria, fungi, and protozoa, and pathological conditions such as arthritis, and which is typically orchestrated by the production of particular cytokines by T-helper 1 cells, most notably interferon-gamma, IL-2, and lymphotoxin.

34 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
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
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
Q61411 Hras GTPase HRas Mus musculus (Mouse) SS
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
Q5BJQ5 Rit2 GTP-binding protein Rit2 Rattus norvegicus (Rat) PR
P97538 Mras Ras-related protein M-Ras Rattus norvegicus (Rat) PR
P20171 Hras GTPase HRas Rattus norvegicus (Rat) SS
B7ZTR0 cplane2 Ciliogenesis and planar polarity effector 2 Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) PR
P79737 nras GTPase NRas Danio rerio (Zebrafish) (Brachydanio rerio) SS
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 VFAINNTKSF EDIHQYREQI KRVKDSDDVP MVLVGNKCDL
130 140 150 160 170 180
PARTVETRQA QDLARSYGIP YIETSAKTRQ GVEDAFYTLV REIRQHKLRK LNPPDESGPG
CMNCKCVIS