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PURA_SYNS3
ID   PURA_SYNS3              Reviewed;         437 AA.
AC   Q0I8J6;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 97.
DE   RecName: Full=Adenylosuccinate synthetase {ECO:0000255|HAMAP-Rule:MF_00011};
DE            Short=AMPSase {ECO:0000255|HAMAP-Rule:MF_00011};
DE            Short=AdSS {ECO:0000255|HAMAP-Rule:MF_00011};
DE            EC=6.3.4.4 {ECO:0000255|HAMAP-Rule:MF_00011};
DE   AltName: Full=IMP--aspartate ligase {ECO:0000255|HAMAP-Rule:MF_00011};
GN   Name=purA {ECO:0000255|HAMAP-Rule:MF_00011}; OrderedLocusNames=sync_2023;
OS   Synechococcus sp. (strain CC9311).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=64471;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9311;
RX   PubMed=16938853; DOI=10.1073/pnas.0602963103;
RA   Palenik B., Ren Q., Dupont C.L., Myers G.S., Heidelberg J.F., Badger J.H.,
RA   Madupu R., Nelson W.C., Brinkac L.M., Dodson R.J., Durkin A.S.,
RA   Daugherty S.C., Sullivan S.A., Khouri H., Mohamoud Y., Halpin R.,
RA   Paulsen I.T.;
RT   "Genome sequence of Synechococcus CC9311: insights into adaptation to a
RT   coastal environment.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:13555-13559(2006).
CC   -!- FUNCTION: Plays an important role in the de novo pathway of purine
CC       nucleotide biosynthesis. Catalyzes the first committed step in the
CC       biosynthesis of AMP from IMP. {ECO:0000255|HAMAP-Rule:MF_00011}.
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_00011};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00011};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00011};
CC   -!- PATHWAY: Purine metabolism; AMP biosynthesis via de novo pathway; AMP
CC       from IMP: step 1/2. {ECO:0000255|HAMAP-Rule:MF_00011}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00011}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00011}.
CC   -!- SIMILARITY: Belongs to the adenylosuccinate synthetase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00011}.
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DR   EMBL; CP000435; ABI45538.1; -; Genomic_DNA.
DR   RefSeq; WP_011619938.1; NC_008319.1.
DR   AlphaFoldDB; Q0I8J6; -.
DR   SMR; Q0I8J6; -.
DR   STRING; 64471.sync_2023; -.
DR   EnsemblBacteria; ABI45538; ABI45538; sync_2023.
DR   KEGG; syg:sync_2023; -.
DR   eggNOG; COG0104; Bacteria.
DR   HOGENOM; CLU_029848_0_0_3; -.
DR   OMA; FHHAKPI; -.
DR   OrthoDB; 232152at2; -.
DR   UniPathway; UPA00075; UER00335.
DR   Proteomes; UP000001961; Chromosome.
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   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..437
FT                   /note="Adenylosuccinate synthetase"
FT                   /id="PRO_1000000940"
FT   ACT_SITE        13
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   ACT_SITE        41
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         12..18
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         13..16
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_00011"
FT   BINDING         13
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         38..41
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_00011"
FT   BINDING         40..42
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         40
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         128
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_00011"
FT   BINDING         142
FT                   /ligand="IMP"
FT                   /ligand_id="ChEBI:CHEBI:58053"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         223
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_00011"
FT   BINDING         238
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_00011"
FT   BINDING         298..304
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         302
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_00011"
FT   BINDING         304
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         330..332
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         412..414
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
SQ   SEQUENCE   437 AA;  47467 MW;  41A940EFE0BCD8A9 CRC64;
     MANVVVIGAQ WGDEGKGKIT DLLSRSADVV VRYQGGVNAG HTIVVDGRVL KLHLIPSGIL
     YPDTTCLIGS GTVVDPKVML GELDMLISNG IDISGLQLAS TAHITMPYHR LLDLAMEKQR
     GERKIGTTGR GIGPTYADKS QRSGIRVLDL LDEARLRDRL EGPLSEKNQL LETIYGEKPL
     DPEEIIREYL AYGKRLAPHV VDCTRAIHEA ASDRKNILFE GAQGTLLDLD HGTYPYVTSS
     NPVSGGACIG AGVGPTLIDR VIGVAKAYTT RVGEGPFPTE LSGSLNDQLC DRGGEFGTTT
     GRRRRCGWFD GVIGRYAVQV NGLDCLAITK LDVLDEMDKI QVSVAYELDG ERIDYFPSCS
     EDFARCKPIF ETLPGWQCST AECRRLEDLP APAMDYLRFL ADLMDVPIAI VSLGASRDQT
     IVVEDPIHGP KRALLSA
 
 
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