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PURA_MYCS2
ID   PURA_MYCS2              Reviewed;         431 AA.
AC   A0QQH7; I7FE94;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 98.
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};
GN   OrderedLocusNames=MSMEG_0759, MSMEI_0743;
OS   Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) (Mycobacterium
OS   smegmatis).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycolicibacterium.
OX   NCBI_TaxID=246196;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700084 / mc(2)155;
RA   Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C.,
RA   Fraser C.M.;
RL   Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700084 / mc(2)155;
RX   PubMed=17295914; DOI=10.1186/gb-2007-8-2-r20;
RA   Deshayes C., Perrodou E., Gallien S., Euphrasie D., Schaeffer C.,
RA   Van-Dorsselaer A., Poch O., Lecompte O., Reyrat J.-M.;
RT   "Interrupted coding sequences in Mycobacterium smegmatis: authentic
RT   mutations or sequencing errors?";
RL   Genome Biol. 8:R20.1-R20.9(2007).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], IDENTIFICATION BY MASS
RP   SPECTROMETRY [LARGE SCALE ANALYSIS], AND CLEAVAGE OF INITIATOR METHIONINE.
RC   STRAIN=ATCC 700084 / mc(2)155;
RX   PubMed=18955433; DOI=10.1101/gr.081901.108;
RA   Gallien S., Perrodou E., Carapito C., Deshayes C., Reyrat J.-M.,
RA   Van Dorsselaer A., Poch O., Schaeffer C., Lecompte O.;
RT   "Ortho-proteogenomics: multiple proteomes investigation through orthology
RT   and a new MS-based protocol.";
RL   Genome Res. 19:128-135(2009).
RN   [4]
RP   PUPYLATION AT LYS-292, AND IDENTIFICATION BY MASS SPECTROMETRY.
RX   PubMed=20094657; DOI=10.1039/b916104j;
RA   Watrous J., Burns K., Liu W.T., Patel A., Hook V., Bafna V.,
RA   Barry C.E. III, Bark S., Dorrestein P.C.;
RT   "Expansion of the mycobacterial 'PUPylome'.";
RL   Mol. Biosyst. 6:376-385(2010).
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; CP000480; ABK74908.1; -; Genomic_DNA.
DR   EMBL; CP001663; AFP37223.1; -; Genomic_DNA.
DR   RefSeq; WP_011727173.1; NZ_SIJM01000036.1.
DR   RefSeq; YP_885165.1; NC_008596.1.
DR   AlphaFoldDB; A0QQH7; -.
DR   SMR; A0QQH7; -.
DR   STRING; 246196.MSMEI_0743; -.
DR   PRIDE; A0QQH7; -.
DR   EnsemblBacteria; ABK74908; ABK74908; MSMEG_0759.
DR   EnsemblBacteria; AFP37223; AFP37223; MSMEI_0743.
DR   GeneID; 66738934; -.
DR   KEGG; msg:MSMEI_0743; -.
DR   KEGG; msm:MSMEG_0759; -.
DR   PATRIC; fig|246196.19.peg.755; -.
DR   eggNOG; COG0104; Bacteria.
DR   OMA; FHHAKPI; -.
DR   OrthoDB; 232152at2; -.
DR   UniPathway; UPA00075; UER00335.
DR   Proteomes; UP000000757; Chromosome.
DR   Proteomes; UP000006158; 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   1: Evidence at protein level;
KW   Cytoplasm; GTP-binding; Isopeptide bond; Ligase; Magnesium; Metal-binding;
KW   Nucleotide-binding; Purine biosynthesis; Reference proteome;
KW   Ubl conjugation.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:18955433"
FT   CHAIN           2..431
FT                   /note="Adenylosuccinate synthetase"
FT                   /id="PRO_1000000868"
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         129
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         143
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         224
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         239
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         299..305
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         303
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         305
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         331..333
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   BINDING         413..415
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00011"
FT   CROSSLNK        292
FT                   /note="Isoglutamyl lysine isopeptide (Lys-Gln) (interchain
FT                   with Q-Cter in protein Pup)"
FT                   /evidence="ECO:0000269|PubMed:20094657"
SQ   SEQUENCE   431 AA;  46339 MW;  492503DD6BACE819 CRC64;
     MPAIVLIGAQ WGDEGKGKAT DLLGGRVQWV VRYQGGNNAG HTVVLPTGEN FALHLIPSGI
     LTPGVTNVIG NGVVVDPGVL LTELKGLEDR GVDTSNLLIS ADAHLLMPYH VAIDKVVERW
     AGSKKIGTTG RGIGPCYQDK IARIGIRVAD VLDEQVLAEK IEAALEFKNQ VLVKIYNRKA
     LEPAEVLENL LEQAEGFKHR IADARLLLNQ ALENDEAVLL EGSQGTLLDV DHGTYPFVTS
     SNPTAGGAAV GSGIGPTRIT TVLGILKAYT TRVGSGPFPT ELFDEHGAYL AKTGGEVGVT
     TGRARRCGWF DAVIARYATR VNGITDYFLT KLDVLSSLET VPVCVGYTVD GKRVDEMPMT
     QSDIARAEPV YEELPGWWED ISGAREFEDL PAKARDYVLR LEELAGAYVS CIGVGPGRDQ
     TIVRRDVLAA R
 
 
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