PUR8_BUCAP
ID PUR8_BUCAP Reviewed; 456 AA.
AC Q8K9Q7;
DT 08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2002, sequence version 1.
DT 03-AUG-2022, entry version 120.
DE RecName: Full=Adenylosuccinate lyase;
DE Short=ASL;
DE EC=4.3.2.2 {ECO:0000250|UniProtKB:P0AB89};
DE AltName: Full=Adenylosuccinase;
DE Short=ASase;
GN Name=purB; OrderedLocusNames=BUsg_253;
OS Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Buchnera.
OX NCBI_TaxID=198804;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Sg;
RX PubMed=12089438; DOI=10.1126/science.1071278;
RA Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT "50 million years of genomic stasis in endosymbiotic bacteria.";
RL Science 296:2376-2379(2002).
CC -!- FUNCTION: Catalyzes two reactions in de novo purine nucleotide
CC biosynthesis. Catalyzes the breakdown of 5-aminoimidazole- (N-
CC succinylocarboxamide) ribotide (SAICAR or 2-[5-amino-1-(5-phospho-beta-
CC D-ribosyl)imidazole-4-carboxamido]succinate) to 5-aminoimidazole-4-
CC carboxamide ribotide (AICAR or 5-amino-1-(5-phospho-beta-D-
CC ribosyl)imidazole-4-carboxamide) and fumarate, and of adenylosuccinate
CC (ADS or N(6)-(1,2-dicarboxyethyl)-AMP) to adenosine monophosphate (AMP)
CC and fumarate. {ECO:0000250|UniProtKB:P0AB89}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=N(6)-(1,2-dicarboxyethyl)-AMP = AMP + fumarate;
CC Xref=Rhea:RHEA:16853, ChEBI:CHEBI:29806, ChEBI:CHEBI:57567,
CC ChEBI:CHEBI:456215; EC=4.3.2.2;
CC Evidence={ECO:0000250|UniProtKB:P0AB89};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:16854;
CC Evidence={ECO:0000250|UniProtKB:P0AB89};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2S)-2-[5-amino-1-(5-phospho-beta-D-ribosyl)imidazole-4-
CC carboxamido]succinate = 5-amino-1-(5-phospho-beta-D-
CC ribosyl)imidazole-4-carboxamide + fumarate; Xref=Rhea:RHEA:23920,
CC ChEBI:CHEBI:29806, ChEBI:CHEBI:58443, ChEBI:CHEBI:58475; EC=4.3.2.2;
CC Evidence={ECO:0000250|UniProtKB:P0AB89};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:23921;
CC Evidence={ECO:0000250|UniProtKB:P0AB89};
CC -!- PATHWAY: Purine metabolism; AMP biosynthesis via de novo pathway; AMP
CC from IMP: step 2/2.
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-
CC phospho-D-ribosyl)imidazole-4-carboxylate: step 2/2.
CC -!- SUBUNIT: Homotetramer. Residues from neighboring subunits contribute
CC catalytic and substrate-binding residues to each active site (By
CC similarity). {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the lyase 1 family. Adenylosuccinate lyase
CC subfamily. {ECO:0000305}.
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DR EMBL; AE013218; AAM67812.1; -; Genomic_DNA.
DR RefSeq; WP_011053779.1; NC_004061.1.
DR AlphaFoldDB; Q8K9Q7; -.
DR SMR; Q8K9Q7; -.
DR STRING; 198804.BUsg_253; -.
DR EnsemblBacteria; AAM67812; AAM67812; BUsg_253.
DR KEGG; bas:BUsg_253; -.
DR eggNOG; COG0015; Bacteria.
DR HOGENOM; CLU_025566_2_0_6; -.
DR OMA; TQVNPCD; -.
DR OrthoDB; 347727at2; -.
DR UniPathway; UPA00074; UER00132.
DR UniPathway; UPA00075; UER00336.
DR Proteomes; UP000000416; Chromosome.
DR GO; GO:0070626; F:(S)-2-(5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamido) succinate lyase (fumarate-forming) activity; IEA:UniProtKB-EC.
DR GO; GO:0004018; F:N6-(1,2-dicarboxyethyl)AMP AMP-lyase (fumarate-forming) activity; IEA:UniProtKB-EC.
DR GO; GO:0044208; P:'de novo' AMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 1.10.275.10; -; 1.
DR InterPro; IPR024083; Fumarase/histidase_N.
DR InterPro; IPR020557; Fumarate_lyase_CS.
DR InterPro; IPR000362; Fumarate_lyase_fam.
DR InterPro; IPR022761; Fumarate_lyase_N.
DR InterPro; IPR008948; L-Aspartase-like.
DR InterPro; IPR004769; Pur_lyase.
DR InterPro; IPR013539; PurB_C.
DR Pfam; PF08328; ASL_C; 1.
DR Pfam; PF00206; Lyase_1; 1.
DR PRINTS; PR00149; FUMRATELYASE.
DR SUPFAM; SSF48557; SSF48557; 1.
DR TIGRFAMs; TIGR00928; purB; 1.
DR PROSITE; PS00163; FUMARATE_LYASES; 1.
PE 3: Inferred from homology;
KW Lyase; Purine biosynthesis.
FT CHAIN 1..456
FT /note="Adenylosuccinate lyase"
FT /id="PRO_0000137875"
FT ACT_SITE 171
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT ACT_SITE 295
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 15..16
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 90..92
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 122..123
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 247
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 296
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 301..303
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 309
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 335
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
FT BINDING 340..344
FT /ligand="N(6)-(1,2-dicarboxyethyl)-AMP"
FT /ligand_id="ChEBI:CHEBI:57567"
FT /evidence="ECO:0000250|UniProtKB:P0AB89"
SQ SEQUENCE 456 AA; 53023 MW; 0B5C610B7C60E08A CRC64;
MELNSLTAIS PIDGRYSNST KLLRNIFSEF GFLKYRLYVE IQWLKKLINM HQILEIKKVE
KTDILFLDNI FETFNEEDAI SVKNIEKETN HDVKALEYFL RKKLSQSKKL SPFLEFVHFL
CTSEDINNIA YALMIKNARD EIILPLWKKI INFLKNASFQ YRNNSLLSLT HGQPATPSTM
GKEMVNFYYR MQRQYHKLKK IEILGKINGT TGNYNAHLVA YPKVNWHAVS KEFITSLGIF
WNPYTTQIEP HDYIAELFGC VSLFNNILID SNRDIWGYIS LNYFKQKLID QEIGSSIMPH
KINPIDFENS EGNLGLSNAL MNHMINKLPI SRWQRDLSDS TVLRNIGVVF AYSIIAYNSV
LLGTNKLTIN TSQLLKNLDN NWSVLSEAIQ TVMRRYTIEN AYEKLKKLTR GKKIEKVDIH
KFIDKLNIPK IEKERLKKIS PSNYIGAASQ IIDEIK
