ID   ASTB_ECODH              Reviewed;         447 AA.
AC   B1XGK6;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=N-succinylarginine dihydrolase {ECO:0000255|HAMAP-Rule:MF_01172};
DE            EC=3.5.3.23 {ECO:0000255|HAMAP-Rule:MF_01172};
GN   Name=astB {ECO:0000255|HAMAP-Rule:MF_01172};
GN   OrderedLocusNames=ECDH10B_1883;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/jb.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into the
RT   biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
CC   -!- FUNCTION: Catalyzes the hydrolysis of N(2)-succinylarginine into N(2)-
CC       succinylornithine, ammonia and CO(2). {ECO:0000255|HAMAP-
CC       Rule:MF_01172}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 H(+) + 2 H2O + N(2)-succinyl-L-arginine = CO2 + N(2)-
CC         succinyl-L-ornithine + 2 NH4(+); Xref=Rhea:RHEA:19533,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:28938, ChEBI:CHEBI:58241, ChEBI:CHEBI:58514; EC=3.5.3.23;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01172};
CC   -!- PATHWAY: Amino-acid degradation; L-arginine degradation via AST
CC       pathway; L-glutamate and succinate from L-arginine: step 2/5.
CC       {ECO:0000255|HAMAP-Rule:MF_01172}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01172}.
CC   -!- SIMILARITY: Belongs to the succinylarginine dihydrolase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01172}.
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DR   EMBL; CP000948; ACB02944.1; -; Genomic_DNA.
DR   RefSeq; WP_000994973.1; NC_010473.1.
DR   AlphaFoldDB; B1XGK6; -.
DR   SMR; B1XGK6; -.
DR   KEGG; ecd:ECDH10B_1883; -.
DR   HOGENOM; CLU_053835_0_0_6; -.
DR   OMA; TLNDWVD; -.
DR   BioCyc; ECOL316385:ECDH10B_RS09630-MON; -.
DR   UniPathway; UPA00185; UER00280.
DR   GO; GO:0009015; F:N-succinylarginine dihydrolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019544; P:arginine catabolic process to glutamate; IEA:UniProtKB-UniRule.
DR   GO; GO:0019545; P:arginine catabolic process to succinate; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.75.10.20; -; 1.
DR   HAMAP; MF_01172; AstB; 1.
DR   InterPro; IPR037031; AstB_sf.
DR   InterPro; IPR007079; SuccinylArg_d-Hdrlase_AstB.
DR   Pfam; PF04996; AstB; 1.
DR   TIGRFAMs; TIGR03241; arg_catab_astB; 1.
PE   3: Inferred from homology;
KW   Arginine metabolism; Hydrolase.
FT   CHAIN           1..447
FT                   /note="N-succinylarginine dihydrolase"
FT                   /id="PRO_1000138013"
FT   ACT_SITE        174
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   ACT_SITE        248
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   ACT_SITE        365
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         19..28
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         110
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         137..138
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         212
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         250
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
FT   BINDING         359
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01172"
SQ   SEQUENCE   447 AA;  49299 MW;  710AE691E413AF64 CRC64;
     MNAWEVNFDG LVGLTHHYAG LSFGNEASTR HRFQVSNPRL AAKQGLLKMK ALADAGFPQA
     VIPPHERPFI PVLRQLGFSG SDEQVLEKVA RQAPHWLSSV SSASPMWVAN AATIAPSADT
     LDGKVHLTVA NLNNKFHRSL EAPVTESLLK AIFNDEEKFS VHSALPQVAL LGDEGAANHN
     RLGGHYGEPG MQLFVYGREE GNDTRPSRYP ARQTREASEA VARLNQVNPQ QVIFAQQNPD
     VIDQGVFHND VIAVSNRQVL FCHQQAFARQ SQLLANLRAR VNGFMAIEVP ATQVSVSDTV
     STYLFNSQLL SRDDGSMMLV LPQECREHAG VWGYLNELLA ADNPISELKV FDLRESMANG
     GGPACLRLRV VLTEEERRAV NPAVMMNDTL FNALNDWVDR YYRDRLTAAD LADPQLLREG
     REALDVLSQL LNLGSVYPFQ REGGGNG