PURA_TRYB9
ID PURA_TRYB9 Reviewed; 602 AA.
AC D0A6J7;
DT 05-OCT-2010, integrated into UniProtKB/Swiss-Prot.
DT 24-NOV-2009, sequence version 1.
DT 03-AUG-2022, entry version 47.
DE RecName: Full=Adenylosuccinate synthetase {ECO:0000255|HAMAP-Rule:MF_03125};
DE Short=AMPSase {ECO:0000255|HAMAP-Rule:MF_03125};
DE Short=AdSS {ECO:0000255|HAMAP-Rule:MF_03125};
DE EC=6.3.4.4 {ECO:0000255|HAMAP-Rule:MF_03125};
DE AltName: Full=IMP--aspartate ligase {ECO:0000255|HAMAP-Rule:MF_03125};
GN ORFNames=TbgDal_XI4160;
OS Trypanosoma brucei gambiense (strain MHOM/CI/86/DAL972).
OC Eukaryota; Discoba; Euglenozoa; Kinetoplastea; Metakinetoplastina;
OC Trypanosomatida; Trypanosomatidae; Trypanosoma.
OX NCBI_TaxID=679716;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MHOM/CI/86/DAL972;
RX PubMed=20404998; DOI=10.1371/journal.pntd.0000658;
RA Jackson A.P., Sanders M., Berry A., McQuillan J., Aslett M.A., Quail M.A.,
RA Chukualim B., Capewell P., MacLeod A., Melville S.E., Gibson W.,
RA Barry J.D., Berriman M., Hertz-Fowler C.;
RT "The genome sequence of Trypanosoma brucei gambiense, causative agent of
RT chronic human african trypanosomiasis.";
RL PLoS Negl. Trop. Dis. 4:E658-E658(2010).
CC -!- FUNCTION: Plays an important role in the salvage pathway for purine
CC nucleotide biosynthesis. Catalyzes the first committed step in the
CC biosynthesis of AMP from IMP (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + IMP + L-aspartate = GDP + 2 H(+) + N(6)-(1,2-
CC dicarboxyethyl)-AMP + phosphate; Xref=Rhea:RHEA:15753,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29991, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57567, ChEBI:CHEBI:58053,
CC ChEBI:CHEBI:58189; EC=6.3.4.4; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_03125};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03125};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_03125};
CC -!- PATHWAY: Purine metabolism; AMP biosynthesis via de novo pathway; AMP
CC from IMP: step 1/2. {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03125}.
CC -!- MISCELLANEOUS: Parasitic protozoa lack the de novo purine biosynthesis
CC pathway and rely exclusively on the salvage pathway for their purine
CC nucleotide requirements.
CC -!- SIMILARITY: Belongs to the adenylosuccinate synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_03125}.
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DR EMBL; FN554974; CBH17298.1; -; Genomic_DNA.
DR RefSeq; XP_011779562.1; XM_011781260.1.
DR AlphaFoldDB; D0A6J7; -.
DR SMR; D0A6J7; -.
DR GeneID; 23867404; -.
DR KEGG; tbg:TbgDal_XI4160; -.
DR VEuPathDB; TriTrypDB:Tbg972.11.4160; -.
DR OrthoDB; 1276527at2759; -.
DR UniPathway; UPA00075; UER00335.
DR Proteomes; UP000002316; Chromosome 11.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004019; F:adenylosuccinate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0044208; P:'de novo' AMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 1.10.300.10; -; 1.
DR Gene3D; 3.40.440.10; -; 1.
DR Gene3D; 3.90.170.10; -; 1.
DR HAMAP; MF_00011; Adenylosucc_synth; 1.
DR InterPro; IPR018220; Adenylosuccin_syn_GTP-bd.
DR InterPro; IPR042109; Adenylosuccinate_synth_dom1.
DR InterPro; IPR042110; Adenylosuccinate_synth_dom2.
DR InterPro; IPR042111; Adenylosuccinate_synth_dom3.
DR InterPro; IPR001114; Adenylosuccinate_synthetase.
DR InterPro; IPR027417; P-loop_NTPase.
DR PANTHER; PTHR11846; PTHR11846; 1.
DR Pfam; PF00709; Adenylsucc_synt; 1.
DR SMART; SM00788; Adenylsucc_synt; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR PROSITE; PS01266; ADENYLOSUCCIN_SYN_1; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Ligase; Magnesium; Metal-binding;
KW Nucleotide-binding; Purine biosynthesis.
FT CHAIN 1..602
FT /note="Adenylosuccinate synthetase"
FT /id="PRO_0000399306"
FT ACT_SITE 75
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT ACT_SITE 105
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 74..80
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 75..78
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 75
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 102..105
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 104..106
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 104
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 189
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 203
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 315
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 331
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 455..461
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 459
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 461
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 589..591
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
SQ SEQUENCE 602 AA; 66676 MW; 488AE9F4CAD53375 CRC64;
MAAAPSATAP KHNYTLGTNA SQLELYKYLK TVPPIPELRQ AVTIKKYEEA SVDDTLYPLI
DEHQIIMVVG AFFGDEGKGK TVDAVARHPA CTCVARVNSG ENAGHTVFDD IGRKYVFNLA
PSSLLTPNTR NYVSSECVMD PISFMEREIG QFIKSNMPYK DKLFVGNVFV VTPYHKLLDL
LGSAPNSSTL KGMSPIHASK VTKRGIRLDH IFNDEGVLRA RLAKDMDTYY GLLKVKGLTD
KDVVRRCEEE NADGVERVPG YVVDFARAEN KIDYLVKLYT ERVKNNKDFP RRCDVTHELR
AALARGEKLL LEGPQSYWLS NAREKFWEST TSADTTAGGL LASAQFNFQR YKVLVINVHK
APGSSRVGIG ANPSSFVPQD YYSAQDIKTL EALPKGGCVD FDKIQNFFYT KAFNTESKTF
NGIYEPLEYE DATGKYNIGV AMSIASARHH GECGAVTKKP RVCGFFDCVL HFEVNAVQGP
YLSISAVDRG DDYDRIGITI AYVYYDVGNK MVDANGRVYK NGDIIKAGDP VPCEMALYHC
YPIVKVINGW KGAPIAASKR RPNEPLPKGV CEFIANVEFF TGAKVISIGN GPRGSDIIYL
KQ
