PURA_MONBE
ID PURA_MONBE Reviewed; 431 AA.
AC A9UTP3;
DT 05-OCT-2010, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 69.
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=20027;
OS Monosiga brevicollis (Choanoflagellate).
OC Eukaryota; Choanoflagellata; Craspedida; Salpingoecidae; Monosiga.
OX NCBI_TaxID=81824;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MX1 / ATCC 50154;
RX PubMed=18273011; DOI=10.1038/nature06617;
RG JGI Sequencing;
RA King N., Westbrook M.J., Young S.L., Kuo A., Abedin M., Chapman J.,
RA Fairclough S., Hellsten U., Isogai Y., Letunic I., Marr M., Pincus D.,
RA Putnam N., Rokas A., Wright K.J., Zuzow R., Dirks W., Good M.,
RA Goodstein D., Lemons D., Li W., Lyons J.B., Morris A., Nichols S.,
RA Richter D.J., Salamov A., Bork P., Lim W.A., Manning G., Miller W.T.,
RA McGinnis W., Shapiro H., Tjian R., Grigoriev I.V., Rokhsar D.;
RT "The genome of the choanoflagellate Monosiga brevicollis and the origin of
RT metazoans.";
RL Nature 451:783-788(2008).
CC -!- FUNCTION: Plays an important role in the de novo pathway and in the
CC salvage pathway of purine nucleotide biosynthesis. Catalyzes the first
CC committed step in the biosynthesis of AMP from IMP (By similarity).
CC {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 -!- SIMILARITY: Belongs to the adenylosuccinate synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_03125}.
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DR EMBL; CH991545; EDQ91526.1; -; Genomic_DNA.
DR RefSeq; XP_001743948.1; XM_001743896.1.
DR AlphaFoldDB; A9UTP3; -.
DR SMR; A9UTP3; -.
DR STRING; 81824.XP_001743948.1; -.
DR EnsemblProtists; EDQ91526; EDQ91526; MONBRDRAFT_20027.
DR GeneID; 5888892; -.
DR KEGG; mbr:MONBRDRAFT_20027; -.
DR eggNOG; KOG1355; Eukaryota.
DR InParanoid; A9UTP3; -.
DR OMA; FHHAKPI; -.
DR UniPathway; UPA00075; UER00335.
DR Proteomes; UP000001357; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0004019; F:adenylosuccinate synthase activity; IBA:GO_Central.
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; IBA:GO_Central.
DR GO; GO:0046040; P:IMP metabolic process; IBA:GO_Central.
DR CDD; cd03108; AdSS; 1.
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; IPR033128; Adenylosuccin_syn_Lys_AS.
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 TIGRFAMs; TIGR00184; purA; 1.
DR PROSITE; PS01266; ADENYLOSUCCIN_SYN_1; 1.
DR PROSITE; PS00513; ADENYLOSUCCIN_SYN_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Ligase; Magnesium; Metal-binding;
KW Nucleotide-binding; Purine biosynthesis; Reference proteome.
FT CHAIN 1..431
FT /note="Adenylosuccinate synthetase"
FT /id="PRO_0000399311"
FT ACT_SITE 16
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT ACT_SITE 44
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 15..21
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 16..19
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 16
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 41..44
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 43..45
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 43
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 135
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 149
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 227
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 242
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 302..308
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 306
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 308
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 334..336
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
FT BINDING 416..418
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03125"
SQ SEQUENCE 431 AA; 47271 MW; 34E7BE12748972F0 CRC64;
MAQQKVAVVL GLQWGDEGKG KLVDVLAEDA DVVARFAGGN NAGHTVVVDN ISYDFHLLPS
GIGHAKCDCV IGNGVVIHLP GLYEEVEKNM AKGPHLQGWQ SRLKISDRAH LVLDLHQKVD
GMKEEERGLD KIGTTKKGIG PTYSSKAIRH GLRVCDLMGD FGIFKQKFLQ VVEHYQKLFP
SLEVDVDAQL KAFEGYAEKV RPMVTDTTLL VHRYLKENKR VLLEGANATM LDLDFGTYPY
VTSSSCCVGG ICTGLGLPPQ AVGDVYGVVK AYTTRVGDGA FPTEDFAEVG NYLQTKGHEY
GVTTGRKRRC GWLDMMVVNY ACMINGVTKI CLTKLDVLDE LETIKIAVAY KKGGEALLGM
PASQQVLNEV EVEYVDMPGW QTNISEIRDF EALPTQAQAY VRKVEELSGV PVKWIGVGPA
REAMIIVPPR Q
