RALB_PONAB
ID RALB_PONAB Reviewed; 206 AA.
AC Q5R4B8;
DT 28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT 21-DEC-2004, sequence version 1.
DT 03-AUG-2022, entry version 117.
DE RecName: Full=Ras-related protein Ral-B;
DE EC=3.6.5.2 {ECO:0000305};
DE Flags: Precursor;
GN Name=RALB;
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Brain cortex;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Multifunctional GTPase involved in a variety of cellular
CC processes including gene expression, cell migration, cell
CC proliferation, oncogenic transformation and membrane trafficking.
CC Accomplishes its multiple functions by interacting with distinct
CC downstream effectors. Acts as a GTP sensor for GTP-dependent exocytosis
CC of dense core vesicles (By similarity). Required both to stabilize the
CC assembly of the exocyst complex and to localize functional exocyst
CC complexes to the leading edge of migrating cells (By similarity).
CC Required for suppression of apoptosis (By similarity). In late stages
CC of cytokinesis, upon completion of the bridge formation between
CC dividing cells, mediates exocyst recruitment to the midbody to drive
CC abscission (By similarity). Involved in ligand-dependent receptor
CC mediated endocytosis of the EGF and insulin receptors (By similarity).
CC {ECO:0000250|UniProtKB:P11234, ECO:0000250|UniProtKB:P36860}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:58189; EC=3.6.5.2;
CC Evidence={ECO:0000305};
CC -!- ACTIVITY REGULATION: Alternates between an inactive form bound to GDP
CC and an active form bound to GTP. Activated by a guanine nucleotide-
CC exchange factor (GEF) and inactivated by a GTPase-activating protein
CC (GAP).
CC -!- SUBUNIT: Interacts with EXOC2/Sec5 and EXOC8/Exo84. Interacts (via
CC effector domain) with RALBP1. {ECO:0000250|UniProtKB:P11234}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:P11234};
CC Lipid-anchor {ECO:0000250|UniProtKB:P11234}; Cytoplasmic side
CC {ECO:0000250|UniProtKB:P11234}. Midbody {ECO:0000250|UniProtKB:P11234}.
CC Note=During late cytokinesis, enriched at the midbody.
CC {ECO:0000250|UniProtKB:P11234}.
CC -!- PTM: Prenylation is essential for membrane localization.
CC {ECO:0000250|UniProtKB:P11234}.
CC -!- PTM: The farnesylated form confers resistance to the proapoptotic and
CC anti-anchorage-dependent growth effects of some
CC geranylgeranyltransferase I inhibitors. {ECO:0000250|UniProtKB:P11234}.
CC -!- SIMILARITY: Belongs to the small GTPase superfamily. Ras family.
CC {ECO:0000305}.
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DR EMBL; CR861334; CAH93398.1; -; mRNA.
DR RefSeq; NP_001126995.1; NM_001133523.1.
DR RefSeq; XP_009235922.1; XM_009237647.1.
DR AlphaFoldDB; Q5R4B8; -.
DR BMRB; Q5R4B8; -.
DR SMR; Q5R4B8; -.
DR STRING; 9601.ENSPPYP00000014262; -.
DR GeneID; 100174018; -.
DR KEGG; pon:100174018; -.
DR CTD; 5899; -.
DR eggNOG; KOG0395; Eukaryota.
DR HOGENOM; CLU_041217_9_8_1; -.
DR InParanoid; Q5R4B8; -.
DR OrthoDB; 1259506at2759; -.
DR Proteomes; UP000001595; Unplaced.
DR GO; GO:0030496; C:midbody; ISS:UniProtKB.
DR GO; GO:0005886; C:plasma membrane; ISS:UniProtKB.
DR GO; GO:0003925; F:G protein activity; IEA:UniProtKB-EC.
DR GO; GO:0005525; F:GTP binding; ISS:UniProtKB.
DR GO; GO:0003924; F:GTPase activity; ISS:UniProtKB.
DR GO; GO:0006915; P:apoptotic process; IEA:UniProtKB-KW.
DR GO; GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
DR GO; GO:0051301; P:cell division; IEA:UniProtKB-KW.
DR GO; GO:0007265; P:Ras protein signal transduction; IEA:InterPro.
DR GO; GO:0001928; P:regulation of exocyst assembly; ISS:UniProtKB.
DR GO; GO:0060178; P:regulation of exocyst localization; ISS:UniProtKB.
DR Gene3D; 3.40.50.300; -; 1.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR028412; Ral.
DR InterPro; IPR005225; Small_GTP-bd_dom.
DR InterPro; IPR001806; Small_GTPase.
DR InterPro; IPR020849; Small_GTPase_Ras-type.
DR PANTHER; PTHR24070; PTHR24070; 1.
DR PANTHER; PTHR24070:SF199; PTHR24070:SF199; 1.
DR Pfam; PF00071; Ras; 1.
DR SMART; SM00174; RHO; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR00231; small_GTP; 1.
DR PROSITE; PS51421; RAS; 1.
PE 2: Evidence at transcript level;
KW Apoptosis; Cell cycle; Cell division; Cell membrane; GTP-binding;
KW Hydrolase; Lipoprotein; Membrane; Methylation; Nucleotide-binding;
KW Prenylation; Reference proteome.
FT CHAIN 1..203
FT /note="Ras-related protein Ral-B"
FT /id="PRO_0000260756"
FT PROPEP 204..206
FT /note="Removed in mature form"
FT /evidence="ECO:0000250"
FT /id="PRO_0000281352"
FT REGION 180..206
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 43..51
FT /note="Effector region"
FT BINDING 21..29
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250"
FT BINDING 68..72
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250"
FT BINDING 128..131
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250"
FT BINDING 158..160
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250"
FT MOD_RES 203
FT /note="Cysteine methyl ester"
FT /evidence="ECO:0000250"
FT LIPID 203
FT /note="S-geranylgeranyl cysteine"
FT /evidence="ECO:0000250"
SQ SEQUENCE 206 AA; 23409 MW; E0AC95130FB6452C CRC64;
MAANKSKGQS SLALHKVIMV GSGGVGKSAL TLQFMYDEFV EDYEPTKADS YRKKVVLDGE
EVQIDILDTA GQEDYAAIRD NYFRSGEGFL LVFSITEHES FTATAEFREQ ILRVKAEEDK
IPLLVVGNKS DLEERRQVPV EEARSKAEEW GVQYVETSAK TRANVDKVFF DLMREIRTKK
MSENKDKNGK KSSKNKKSFK ERCCLL
