GTR1_YEASX
ID GTR1_YEASX Reviewed; 310 AA.
AC A0A6A5PR12;
DT 03-AUG-2022, integrated into UniProtKB/Swiss-Prot.
DT 17-JUN-2020, sequence version 1.
DT 03-AUG-2022, entry version 11.
DE RecName: Full=GTP-binding protein GTR1 {ECO:0000250|UniProtKB:Q00582};
GN Name=GTR1 {ECO:0000305|PubMed:28993463};
GN ORFNames=GI527_G0004296 {ECO:0000312|EMBL:KAF1903594.1};
OS Saccharomyces cerevisiae (Baker's yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=4932 {ECO:0000312|Proteomes:UP000470054};
RN [1] {ECO:0000312|Proteomes:UP000470054}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=INSC1005 {ECO:0000312|Proteomes:UP000470054};
RA Fiddes I.T., Church D.M.;
RT "Inscripta technologies.";
RL Submitted (JAN-2020) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000305}
RP FUNCTION, SUBCELLULAR LOCATION, AND DISRUPTION PHENOTYPE.
RC STRAIN=ATCC 200060 / W303 {ECO:0000303|PubMed:28993463};
RX PubMed=28993463; DOI=10.1242/jcs.207910;
RA Varlakhanova N.V., Mihalevic M.J., Bernstein K.A., Ford M.G.J.;
RT "Pib2 and the EGO complex are both required for activation of TORC1.";
RL J. Cell Sci. 130:3878-3890(2017).
CC -!- FUNCTION: GTPase involved in activation of the TORC1 signaling pathway,
CC which promotes growth and represses autophagy in nutrient-rich
CC conditions (PubMed:28993463). Also required for TORC1 inactivation
CC during nitrogen starvation (PubMed:28993463). Required for
CC intracellular sorting of GAP1 out of the endosome (By similarity).
CC Functionally associated with the inorganic phosphate transporter PHO84,
CC and may be involved in regulating its function or localization (By
CC similarity). {ECO:0000250|UniProtKB:Q00582,
CC ECO:0000269|PubMed:28993463}.
CC -!- SUBUNIT: Heterodimer; with GTR2 (By similarity). Component of the GSE
CC complex composed of GTR1, GTR2, SLM4, MEH1 and LTV1 (By similarity).
CC Interacts with GTR2; the interaction is direct (By similarity).
CC Interacts with TOR1 (By similarity). {ECO:0000250|UniProtKB:Q00582}.
CC -!- SUBCELLULAR LOCATION: Vacuole membrane {ECO:0000269|PubMed:28993463};
CC Peripheral membrane protein {ECO:0000305}.
CC -!- DISRUPTION PHENOTYPE: Sensitive to rapamycin (TORC1 signaling-
CC inhibitor) (PubMed:28993463). Simultaneous disruption of GTR2 results
CC in abnormal localization of TOR1 and PIB2 to vacuoles and abnormal
CC activation of TORC1 in nitrogen-replete conditions (glutamine or
CC leucine nitrogen source) (PubMed:28993463).
CC {ECO:0000269|PubMed:28993463}.
CC -!- SIMILARITY: Belongs to the GTR/RAG GTP-binding protein family.
CC {ECO:0000305}.
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DR EMBL; JAAEAL010000012; KAF1903594.1; -; Genomic_DNA.
DR SMR; A0A6A5PR12; -.
DR VEuPathDB; FungiDB:YML121W; -.
DR Proteomes; UP000470054; Chromosome xiii.
DR GO; GO:1990131; C:Gtr1-Gtr2 GTPase complex; IEA:UniProtKB-UniRule.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR CDD; cd11384; RagA_like; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR InterPro; IPR006762; Gtr1_RagA.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR039397; RagA/B.
DR PANTHER; PTHR11259; PTHR11259; 1.
DR Pfam; PF04670; Gtr1_RagA; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
PE 3: Inferred from homology;
KW GTP-binding; Membrane; Nucleotide-binding; Phosphate transport;
KW Protein transport; Transport; Vacuole.
FT CHAIN 1..310
FT /note="GTP-binding protein GTR1"
FT /id="PRO_0000456200"
FT BINDING 15..21
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q00582"
FT BINDING 126..129
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q00582"
SQ SEQUENCE 310 AA; 35847 MW; B79CE7FE7AD2FDBE CRC64;
MSSNNRKKLL LMGRSGSGKS SMRSIIFSNY SAFDTRRLGA TIDVEHSHLR FLGNMTLNLW
DCGGQDVFME NYFTKQKDHI FQMVQVLIHV FDVESTEVLK DIEIFAKALK QLRKYSPDAK
IFVLLHKMDL VQLDKREELF QIMMKNLSET SSEFGFPNLI GFPTSIWDES LYKAWSQIVC
SLIPNMSNHQ SNLKKFKEIM NALEIILFER TTFLVICSSN GENSNENHDS SDNNNVLLDP
KRFEKISNIM KNFKQSCTKL KSGFKTLILN NNIYVSELSS NMVCFIVLKD MNIPQELVLE
NIKKAKEFFQ