ID PURA_CAUVC Reviewed; 428 AA.
AC Q9A3U9;
DT 27-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2001, sequence version 1.
DT 27-MAR-2024, entry version 122.
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=CC_3103;
OS Caulobacter vibrioides (strain ATCC 19089 / CB15) (Caulobacter crescentus).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Caulobacter.
OX NCBI_TaxID=190650;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 19089 / CB15;
RX PubMed=11259647; DOI=10.1073/pnas.061029298;
RA Nierman W.C., Feldblyum T.V., Laub M.T., Paulsen I.T., Nelson K.E.,
RA Eisen J.A., Heidelberg J.F., Alley M.R.K., Ohta N., Maddock J.R.,
RA Potocka I., Nelson W.C., Newton A., Stephens C., Phadke N.D., Ely B.,
RA DeBoy R.T., Dodson R.J., Durkin A.S., Gwinn M.L., Haft D.H., Kolonay J.F.,
RA Smit J., Craven M.B., Khouri H.M., Shetty J., Berry K.J., Utterback T.R.,
RA Tran K., Wolf A.M., Vamathevan J.J., Ermolaeva M.D., White O.,
RA Salzberg S.L., Venter J.C., Shapiro L., Fraser C.M.;
RT "Complete genome sequence of Caulobacter crescentus.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:4136-4141(2001).
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; AE005673; AAK25065.1; -; Genomic_DNA.
DR PIR; E87633; E87633.
DR RefSeq; NP_421897.1; NC_002696.2.
DR RefSeq; WP_010920939.1; NC_002696.2.
DR AlphaFoldDB; Q9A3U9; -.
DR SMR; Q9A3U9; -.
DR STRING; 190650.CC_3103; -.
DR EnsemblBacteria; AAK25065; AAK25065; CC_3103.
DR KEGG; ccr:CC_3103; -.
DR PATRIC; fig|190650.5.peg.3110; -.
DR eggNOG; COG0104; Bacteria.
DR HOGENOM; CLU_029848_0_0_5; -.
DR BioCyc; CAULO:CC3103-MONOMER; -.
DR UniPathway; UPA00075; UER00335.
DR Proteomes; UP000001816; 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; 3.40.440.10; Adenylosuccinate Synthetase, subunit A, domain 1; 1.
DR Gene3D; 1.10.300.10; Adenylosuccinate Synthetase, subunit A, domain 2; 1.
DR Gene3D; 3.90.170.10; Adenylosuccinate Synthetase, subunit A, domain 3; 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 NCBIfam; TIGR00184; purA; 1.
DR PANTHER; PTHR11846; ADENYLOSUCCINATE SYNTHETASE; 1.
DR PANTHER; PTHR11846:SF0; ADENYLOSUCCINATE SYNTHETASE; 1.
DR Pfam; PF00709; Adenylsucc_synt; 1.
DR SMART; SM00788; Adenylsucc_synt; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 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..428
FT /note="Adenylosuccinate synthetase"
FT /id="PRO_0000095163"
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 222
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 237
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 297..303
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT BINDING 301
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 303
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT BINDING 329..331
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT BINDING 411..413
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
SQ SEQUENCE 428 AA; 45718 MW; 9467B6E8A60D67E3 CRC64;
MANVTVVGAQ WGDEGKGKIV DWLSNRADVV VRFQGGHNAG HTLVVDGKVY KLALLPSGVV
QGKLSVIGNG VVVDPWHLLS EIDKIADQGV AITPDLLILA DNACLILPLH RDLDQAREAA
STQKIGTTGR GIGPAYEDKV GRRAIRVADL ADPEALKPKI ERLLAHHGAL RRGLGLPEAN
AQELFDALME LAPRILSYAQ PAWRVLDQAY KAGRRILFEG AQGSLLDVDH GTYPFVTSSN
TAAGQASAGS GMGPSATGFV LGIVKAYTTR VGEGPFPAEL FDEVGKHLST VGREVGVNTG
RARRCGWFDS VLVRQSVAIN GIHGVALTKL DVLDGLKTLK ICVGYKIGDK VVDYLPAGLR
DQAAATPVYE EIEGWTESTA GARSFKDLNA NAIKYVRRVE ELIGAPVALL STSPERDDTI
LMRDPFQG
//
