ID   D0U4A8_9GAMM            Unreviewed;       349 AA.
AC   D0U4A8;
DT   15-DEC-2009, integrated into UniProtKB/TrEMBL.
DT   15-DEC-2009, sequence version 1.
DT   24-JAN-2024, entry version 61.
DE   RecName: Full=Alanine racemase {ECO:0000256|HAMAP-Rule:MF_01201};
DE            EC=5.1.1.1 {ECO:0000256|HAMAP-Rule:MF_01201};
GN   ORFNames=SUP05_FGYC13F180004 {ECO:0000313|EMBL:ACX30440.1};
OS   uncultured Candidatus Thioglobus sp.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Candidatus Thioglobus;
OC   environmental samples.
OX   NCBI_TaxID=655186 {ECO:0000313|EMBL:ACX30440.1};
RN   [1] {ECO:0000313|EMBL:ACX30440.1}
RP   NUCLEOTIDE SEQUENCE.
RX   PubMed=19900896; DOI=10.1126/science.1175309;
RA   Walsh D.A., Zaikova E., Howes C.L., Song Y.C., Wright J.J., Tringe S.G.,
RA   Tortell P.D., Hallam S.J.;
RT   "Metagenome of a versatile chemolithoautotroph from expanding oceanic dead
RT   zones.";
RL   Science 326:578-582(2009).
CC   -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine. May
CC       also act on other amino acids. {ECO:0000256|HAMAP-Rule:MF_01201}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-alanine = D-alanine; Xref=Rhea:RHEA:20249,
CC         ChEBI:CHEBI:57416, ChEBI:CHEBI:57972; EC=5.1.1.1;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_01201};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000256|ARBA:ARBA00001933,
CC         ECO:0000256|HAMAP-Rule:MF_01201, ECO:0000256|PIRSR:PIRSR600821-50};
CC   -!- PATHWAY: Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine
CC       from L-alanine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01201}.
CC   -!- SIMILARITY: Belongs to the alanine racemase family. {ECO:0000256|HAMAP-
CC       Rule:MF_01201}.
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DR   EMBL; GQ351266; ACX30440.1; -; Genomic_DNA.
DR   AlphaFoldDB; D0U4A8; -.
DR   UniPathway; UPA00042; UER00497.
DR   GO; GO:0008784; F:alanine racemase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030632; P:D-alanine biosynthetic process; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.20.20.10; Alanine racemase; 1.
DR   HAMAP; MF_01201; Ala_racemase; 1.
DR   InterPro; IPR000821; Ala_racemase.
DR   InterPro; IPR009006; Ala_racemase/Decarboxylase_C.
DR   InterPro; IPR011079; Ala_racemase_C.
DR   InterPro; IPR001608; Ala_racemase_N.
DR   InterPro; IPR029066; PLP-binding_barrel.
DR   NCBIfam; TIGR00492; alr; 1.
DR   PANTHER; PTHR30511; ALANINE RACEMASE; 1.
DR   PANTHER; PTHR30511:SF0; ALANINE RACEMASE, CATABOLIC-RELATED; 1.
DR   Pfam; PF00842; Ala_racemase_C; 1.
DR   Pfam; PF01168; Ala_racemase_N; 1.
DR   PRINTS; PR00992; ALARACEMASE.
DR   SMART; SM01005; Ala_racemase_C; 1.
DR   SUPFAM; SSF50621; Alanine racemase C-terminal domain-like; 1.
DR   SUPFAM; SSF51419; PLP-binding barrel; 1.
PE   3: Inferred from homology;
KW   Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01201};
KW   Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW   Rule:MF_01201}.
FT   DOMAIN          224..348
FT                   /note="Alanine racemase C-terminal"
FT                   /evidence="ECO:0000259|SMART:SM01005"
FT   ACT_SITE        33
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   ACT_SITE        245
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   BINDING         125
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   BINDING         293
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   MOD_RES         33
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-50"
SQ   SEQUENCE   349 AA;  37965 MW;  CE9E7417021248CE CRC64;
     MQAIASISQS ALAHNLSVVR QSCSESKIVS MVKADAYGHH LTLVDPIIDE SDLLAVSELS
     EAQKLREKTD KPILLLSGVY SQDELQSALA LDCHVVVHEK EQINLIAQTK ERIGVWIKID
     TGMHRLGLLA NEYHECIEAF KNNTLVDVEC VMSHFACADE IDHPTNESQL NEFNQLTDDS
     IKRSMANSAA ILSNKDALFD FVRPGIMLYG ISPFGTDESD LKPVMELSAP ILSIKTIQTG
     ESVGYGATWT ANKKTNIAII GIGYGDGYPR HAKNGTPVCI NGKLCPLIGR VSMDLICVNI
     DSITAKVGDI ATLWGNEKLS AETVATWSDT IGYELVTGVS SRVSFNKAL
//