ID Q2HNW3_9POAL Unreviewed; 128 AA.
AC Q2HNW3;
DT 21-MAR-2006, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2006, sequence version 1.
DT 27-MAR-2024, entry version 54.
DE RecName: Full=Guanine nucleotide-binding protein alpha subunit {ECO:0000256|RuleBase:RU368109};
DE Short=GP-alpha {ECO:0000256|RuleBase:RU368109};
DE Flags: Fragment;
GN Name=GPA1 {ECO:0000313|EMBL:AAX58187.1};
OS Ehrharta erecta.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Ehrharteae; Ehrharta.
OX NCBI_TaxID=96049 {ECO:0000313|EMBL:AAX58187.1};
RN [1] {ECO:0000313|EMBL:AAX58187.1}
RP NUCLEOTIDE SEQUENCE.
RX AGRICOLA=IND43738818;
RA Guo Y.L., Ge S.;
RT "Molecular phylogeny of Oryzeae (Poaceae) based on DNA sequences from
RT chloroplast, mitochondrial, and nuclear genomes.";
RL Am. J. Bot. 92:1548-1558(2005).
CC -!- FUNCTION: Guanine nucleotide-binding proteins (G proteins) are involved
CC as modulators or transducers in various transmembrane signaling
CC systems. {ECO:0000256|RuleBase:RU368109}.
CC -!- SUBUNIT: G proteins are composed of 3 units; alpha, beta and gamma. The
CC alpha chain contains the guanine nucleotide binding site.
CC {ECO:0000256|RuleBase:RU368109}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|RuleBase:RU368109}.
CC -!- DOMAIN: The helical domain is required for self-activation.
CC {ECO:0000256|RuleBase:RU368109}.
CC -!- SIMILARITY: Belongs to the G-alpha family.
CC {ECO:0000256|ARBA:ARBA00005804, ECO:0000256|RuleBase:RU368109}.
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DR EMBL; AY792564; AAX58187.1; -; Genomic_DNA.
DR AlphaFoldDB; Q2HNW3; -.
DR GO; GO:0005834; C:heterotrimeric G-protein complex; IEA:UniProtKB-UniRule.
DR GO; GO:0001664; F:G protein-coupled receptor binding; IEA:UniProtKB-UniRule.
DR GO; GO:0031683; F:G-protein beta/gamma-subunit complex binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003924; F:GTPase activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0007188; P:adenylate cyclase-modulating G protein-coupled receptor signaling pathway; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR InterPro; IPR001019; Gprotein_alpha_su.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR002976; Plant_Gprotein_alpha.
DR PANTHER; PTHR10218; GTP-BINDING PROTEIN ALPHA SUBUNIT; 1.
DR PANTHER; PTHR10218:SF302; GUANINE NUCLEOTIDE-BINDING PROTEIN ALPHA-8 SUBUNIT-RELATED; 1.
DR Pfam; PF00503; G-alpha; 1.
DR PRINTS; PR00318; GPROTEINA.
DR PRINTS; PR01242; GPROTEINAPLT.
DR SMART; SM00275; G_alpha; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS51882; G_ALPHA; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|RuleBase:RU368109};
KW GTP-binding {ECO:0000256|RuleBase:RU368109};
KW Lipoprotein {ECO:0000256|RuleBase:RU368109};
KW Magnesium {ECO:0000256|RuleBase:RU368109};
KW Membrane {ECO:0000256|RuleBase:RU368109};
KW Metal-binding {ECO:0000256|RuleBase:RU368109};
KW Myristate {ECO:0000256|RuleBase:RU368109};
KW Nucleotide-binding {ECO:0000256|RuleBase:RU368109};
KW Palmitate {ECO:0000256|ARBA:ARBA00023139, ECO:0000256|RuleBase:RU368109};
KW Transducer {ECO:0000256|RuleBase:RU368109}.
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:AAX58187.1"
FT NON_TER 128
FT /evidence="ECO:0000313|EMBL:AAX58187.1"
SQ SEQUENCE 128 AA; 15403 MW; 933858FE16D5C90D CRC64;
VEIQFSPVGE SKRGGEVYRL YDVGGQRNER RKWIHLFEGV NAVIFCAAIS EYDQMLFEDE
TKNRMMETKE LFDWVLKQRC FEKTSFMLFL NKFDIFERKI QKVPLSVCEW FKDYQPIAPE
KQEVEHAY
//
