Protein RAS*
Identifiers
HUGO:HRAS, HUGO:KRAS, HUGO:NRAS
NRAS proto-oncogene, GTPase
HUGO:NRAS hgnc_id:HGNC:7989 HGNC:7989 ENTREZ:4893 UNIPROT:P01111
KRAS proto-oncogene, GTPase
HUGO:KRAS hgnc_id:HGNC:6407 HGNC:6407 ENTREZ:3845 UNIPROT:P01116
HRas proto-oncogene, GTPase
HUGO:HRAS hgnc_id:HGNC:5173 HGNC:5173 ENTREZ:3265 UNIPROT:P01112
v-Ha-ras Harvey rat sarcoma viral oncogene homolog
HRAS1
HUGO:HRAS HGNC:5173 ENTREZ:3265 UNIPROT:P01112
v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog
KRAS2 "v-Ki-ras2 Kirsten rat sarcoma 2 viral oncogene homolog"
HUGO:KRAS HGNC:6407 ENTREZ:3845 UNIPROT:P01116
neuroblastoma RAS viral (v-ras) oncogene homolog
HUGO:NRAS HGNC:7989 ENTREZ:4893 UNIPROT:P01111
RAS p21 protein activator (GTPase activating protein) 1
HUGO:RASA1 HGNC:9871 ENTREZ:5921 UNIPROT:P20936 GENECARDS:RASA1 REACTOME:63760 KEGG:5921 ATLASONC:GC_RASA1 WIKI:RASA1
RAS p21 protein activator 2
HUGO:RASA2 HGNC:9872 ENTREZ:5922 UNIPROT:Q15283 GENECARDS:RASA2 KEGG:5922 ATLASONC:GC_RASA2 WIKI:RASA2
RAS p21 protein activator 3
HUGO:RASA3 HGNC:20331 ENTREZ:22821 UNIPROT:Q14644 GENECARDS:RASA3 KEGG:22821 ATLASONC:GC_RASA3 WIKI:RASA3
RAS p21 protein activator 4
HUGO:RASA4 HGNC:23181 ENTREZ:10156 UNIPROT:O43374 GENECARDS:RASA4 KEGG:10156 WIKI:RASA4
HUGO:HRAS HGNC:5173 ENTREZ:3265 UNIPROT:P01112 GENECARDS:HRAS REACTOME:62718 KEGG:3265 ATLASONC:HRASID108 WIKI:HRAS
HUGO:KRAS HGNC:6407 ENTREZ:3845 UNIPROT:P01116 GENECARDS:KRAS REACTOME:62720 KEGG:3845 ATLASONC:KRASID91 WIKI:KRAS
HUGO:NRAS HGNC:7989 ENTREZ:4893 UNIPROT:P01111 GENECARDS:NRAS REACTOME:62726 KEGG:4893 ATLASONC:NRASID92 WIKI:NRAS
Maps_Modules
HMC:TUMOR_PROMOTING_INFLAMMATION
HMC:ACTIVATING_INVASION_AND_METASTASIS
Cancer Associated Fibroblasts
/ CORE
HMC:EVADING_GROWTH_SUPPRESSORS
Survival
/ MAPK
Survival
/ HEDGEHOG
Survival
/ PI3K_AKT_MTOR
References
CASCADE:FGF
CASCADE:EGFR
GASCADE:IGF1R
PMID:12419216
FGF activares RAS in fibroblasts
PMID:16227978
Ras GTPases comprise a large family of mostly membrane-resident proteins that shuttle between an inactive GDP-bound and active GTP-bound conformation105. The best-characterized family members are K-Ras, H-Ras and N-Ras.
RasGTP can bind to a number of effector molecules, including the serine/threonine kinase Raf, phosphatidylinositol 3-kinase, RalGDS and others106. RasGTP recruits these proteins to the membrane compartment, which is crucial for their activation and signalling function. All three Raf family members, A-Raf, B-Raf and Raf-1, bind RasGTP as the first step in their activation process. Whereas RasGTP association might suffice to activate B-Raf, both Raf-1 and A-Raf undergo a complex series of activation steps that have not been entirely elucidated and involve changes in phosphorylation levels and protein interactions. For recent reviews on Raf isoforms and their activation mechanisms see Refs 1???3. All Raf isoforms can activate MAPK and ERK kinase (MEK) by phosphorylating two serines in the MEK ACTIVATION LOOP,
PMID:10567412; PMID:15567848
EGFR activates ERK via GRB2/SOS/RAS/RAF pathway
RasGDP binds to Sos and RasGTP is generated. RasGTP keeps Sos inactive enhancing duration and amplitude of the output.
RasGRP1 activates Golgi-associated Ras on this compartment.
K-Ras is found exclusively at the PM. H- and N-Ras are also present in endomembrane compartments such as the endoplasmic reticulum and the Golgi apparatus.
Processed K-Ras is confined primarily to the PM; however when its polybasic region is phosphorylated or targeted by Ca2+/calmodulin K-Ras relocalises to other endomembrane compartments including Golgi endoplasmic reticulum and mitochondria. In contrast H-Ras and N-Ras constantly shuttle between the Golgi and PM as a result of a constitutive depalmitoylation/repalmitoylation cycle.
H-Ras but not K-Ras signalling was dependent on endocytosis.
PMID:17496910 PMID:16488589 PMID:12782630 PMID:17496910 PMID:19615955
PMID:21102635
RAS*@Plasma Membrane
References
su_mpk1_mpk1_re67( Survival
):
Calcium activates the Ras GAP CAPRI (RASA4) that translocates to the PM and downregulates any Ras that is activated on this compartment by the exchange factor SOS.
PMID:16488589
su_mpk1_mpk1_re9( Survival
):
Sos mediates Ras activation. Interaction of Sos with Ras induces the formation of RasGTP from RasGDP.
Spry is induced by activated ERK through phosphorylation on Tyr55. It positively regulates EGFR signalling by sequestering Cbl whereas it negatively regulates FGFR signalling by sequestering Grb2 from FSR2.
PMID:17496910 PMID:15173823
su_mpk1_mpk1_re285( Survival
):
RasGRP1 activates Golgi-associated Ras on this compartment.
RAS*@Cytoplasm
References
su_akt1_s_akt1_re6( Survival
):
PMID:15534002
PMID:9779982
PMID:14585353
su_akt1_s_akt1_re11( Survival
):
PMID:15584861
PMID:10648629
RAS*@Cytosol
References
s_shh1_re98:( Survival
) PMID:18829525
s_akt1_re6( Survival
):
PMID:15534002
PMID:9779982
PMID:14585353
s_akt1_re11( Survival
):
PMID:15584861
PMID:10648629
Modifications:
In compartment: Cytoplasm
- RAS*@Cytoplasm
In compartment: Cytosol
- RAS*@Cytosol
In compartment: Plasma Membrane
- RAS*@Plasma Membrane
Participates in complexes:
In compartment: Cytoplasm
- GRB2:MAP3K1|pho:RAS*|pho:RTK*:SOS*@Cytoplasm
- GRB2:MAP3K2_3*|pho:RAS*|pho:RTK*:SOS*@Cytoplasm
In compartment: Cytosol
- GDP:RAS*@Cytosol
- GTP:RAS*@Cytosol
In compartment: Endosome
- GAB1:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Endosome
In compartment: Golgi Apparatus
- Ca2+:DAG:RAS*|pho:RASGRP1@Golgi Apparatus
- Ca2+:DAG:RAF1|pho:RAS*|pho:RASGRP1@Golgi Apparatus
In compartment: Late Endosomes
- GRB2:LAMTOR2:MEK*:MP1*:RAS*|pho:RTK*:SOS*@Late Endosomes
- GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
- ERK*|pho|pho:GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
In compartment: Lipid Raft
- RAS*:p110*:p85*@Lipid Raft
- GAB1|Y977_pho|Y989_pho:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Lipid Raft
In compartment: Plasma Membrane
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
- BRAF|pho:GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
- GRB2:RAF1|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
- BRAF|pho:GRB2:KSR1-NTER*:RAS*|pho:RTK*:SOS*@Plasma Membrane
- BRAF|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
- BRAF|pho:ERK*|pho|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
Participates in reactions:
As Reactant or Product:- GDP:RAS*@Cytosol
→
GTP:RAS*@Cytosol
- GDP:RAS*@Cytosol
→
GTP:RAS*@Cytosol
- GDP:RAS*@Cytosol
+ GTP@Cytosol
→
GTP:RAS*@Cytosol
+ GDP@Cytosol
- p110*:p85*@Cytoplasm
+ GRB2:SOS*@Cytoplasm
+ PI3,4,5-P3@Lipid Raft
+ RTK*@Cytoplasm
+ GF@default
+ RAS*@Cytoplasm
+ GAB1|Y977_pho|Y989_pho@Cytoplasm
→
GAB1|Y977_pho|Y989_pho:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Lipid Raft
- GAB1:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Endosome
→
Ubiquitination@Cytoplasm
- GAB1|Y977_pho|Y989_pho:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Lipid Raft
→
GAB1:GF:GRB2:PI3,4,5-P3:RAS*:RTK*|pho|pho|hm2:SOS*:p110*:p85*@Endosome
- RAS activation@Cytoplasm
→
RAS*@Cytoplasm
- p110*:p85*@Cytoplasm
+ RAS*@Cytoplasm
→
RAS*:p110*:p85*@Lipid Raft
- RAF1@Cytoplasm
+ GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
GRB2:RAF1|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
- GRB2:RAF1|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ RAF1|pho@Mitochondria
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ BRAF@Cytoplasm
→
BRAF|pho:GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ MAP3K1@Cytoplasm
→
GRB2:MAP3K1|pho:RAS*|pho:RTK*:SOS*@Cytoplasm
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ MAP3K2_3*@Cytoplasm
→
GRB2:MAP3K2_3*|pho:RAS*|pho:RTK*:SOS*@Cytoplasm
- BRAF|pho:GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ KSR1:MEK*@Cytoplasm
→
BRAF|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
- BRAF|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ ERK*@Cytoplasm
→
BRAF|pho:ERK*|pho|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ LAMTOR2:MEK*:MP1*@Late Endosomes
→
GRB2:LAMTOR2:MEK*:MP1*:RAS*|pho:RTK*:SOS*@Late Endosomes
- ERK*|pho|pho:GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
→
GRB2:LAMTOR2:MEK*:MP1*:RAS*|pho:RTK*:SOS*@Late Endosomes
+ ERK*@Cytoplasm
+ RAF1@Cytoplasm
- RAF1@Cytoplasm
+ GRB2:LAMTOR2:MEK*:MP1*:RAS*|pho:RTK*:SOS*@Late Endosomes
→
GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
- ERK*@Cytoplasm
+ GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
→
ERK*|pho|pho:GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
- RAS*@Plasma Membrane
+ Ca2+:DAG:RASGRP1@Golgi Apparatus
→
Ca2+:DAG:RAS*|pho:RASGRP1@Golgi Apparatus
- BRAF|pho:ERK*|pho|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
KSR1:MEK*@Cytoplasm
+ BRAF|pho:GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ ERK*|pho|pho@Cytoplasm
- BRAF|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
BRAF|pho:GRB2:KSR1-NTER*:RAS*|pho:RTK*:SOS*@Plasma Membrane
+ KSR1-CTER*:MEK*@Cytoplasm
- ERK*|pho|pho:GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
→
GRB2:LAMTOR2:MEK*|pho|pho:MP1*:RAF1|pho:RAS*|pho:RTK*:SOS*@Late Endosomes
+ ERK*|pho|pho@Cytoplasm
- RAF1@Cytoplasm
+ Ca2+:DAG:RAS*|pho:RASGRP1@Golgi Apparatus
→
Ca2+:DAG:RAF1|pho:RAS*|pho:RASGRP1@Golgi Apparatus
- GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
RAS*@Plasma Membrane
+ GRB2:RTK*:SOS*@Plasma Membrane
- BRAF|pho:ERK*|pho|pho:GRB2:KSR1:MEK*|pho|pho:RAS*|pho:RTK*:SOS*@Plasma Membrane
→
ERK*|pho|pho:KSR1:MEK*|pho|pho@Cytoplasm
+ BRAF|pho:GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
- RAS*@Plasma Membrane
+ GRB2:RTK*:SOS*@Plasma Membrane
→
GRB2:RAS*|pho:RTK*:SOS*@Plasma Membrane
- RAS activation@Cytosol
→
RAS*@Cytosol
As Catalyser:- GDP:RAF1@Cytosol
→
GTP:RAF1@Cytosol
- RAF*@Cytosol
→
RAF*@Cytosol
- PtdIns(4,5)-P2@Lipid Raft
→
PI3,4,5-P3@Lipid Raft
- MAP2K4@Cytoplasm
→
MAP2K4|pho|pho@Cytoplasm
- MAP2K7@Cytoplasm
→
MAP2K7|pho|pho@Cytoplasm
- MAP2K6@Cytoplasm
→
MAP2K6|pho|pho@Cytoplasm
- MEK*@Cytoplasm
→
MEK*|pho|pho@Cytoplasm
- IMP*:KSR1:MEK*@Cytoplasm
→
IMP*@Cytoplasm
+ KSR1:MEK*@Cytoplasm
- ERK*:MEK*:SEF*@Golgi Apparatus
→
ERK*|pho|pho:MEK*|pho|pho:SEF*@Cytoplasm
- SUFU@Cytosol
+ SIL*@Cytosol
→
SIL*:SUFU@Cytosol