ID   ALR_METS4               Reviewed;         364 AA.
AC   B0UL34;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Alanine racemase {ECO:0000255|HAMAP-Rule:MF_01201};
DE            EC=5.1.1.1 {ECO:0000255|HAMAP-Rule:MF_01201};
GN   Name=alr; OrderedLocusNames=M446_2595;
OS   Methylobacterium sp. (strain 4-46).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Methylobacteriaceae; Methylobacterium.
OX   NCBI_TaxID=426117;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=4-46;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C.,
RA   Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ivanova N., Marx C.J., Richardson P.;
RT   "Complete sequence of chromosome of Methylobacterium sp. 4-46.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine. May
CC       also act on other amino acids. {ECO:0000255|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:0000255|HAMAP-Rule:MF_01201};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01201};
CC   -!- PATHWAY: Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine
CC       from L-alanine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01201}.
CC   -!- SIMILARITY: Belongs to the alanine racemase family. {ECO:0000255|HAMAP-
CC       Rule:MF_01201}.
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DR   EMBL; CP000943; ACA17034.1; -; Genomic_DNA.
DR   RefSeq; WP_012332440.1; NC_010511.1.
DR   AlphaFoldDB; B0UL34; -.
DR   SMR; B0UL34; -.
DR   STRING; 426117.M446_2595; -.
DR   EnsemblBacteria; ACA17034; ACA17034; M446_2595.
DR   KEGG; met:M446_2595; -.
DR   eggNOG; COG0787; Bacteria.
DR   HOGENOM; CLU_028393_1_1_5; -.
DR   OMA; HMTHFSD; -.
DR   OrthoDB; 859043at2; -.
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; 2.40.37.10; -; 1.
DR   Gene3D; 3.20.20.10; -; 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   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; SSF50621; 1.
DR   SUPFAM; SSF51419; SSF51419; 1.
DR   TIGRFAMs; TIGR00492; alr; 1.
PE   3: Inferred from homology;
KW   Isomerase; Pyridoxal phosphate.
FT   CHAIN           1..364
FT                   /note="Alanine racemase"
FT                   /id="PRO_1000138613"
FT   ACT_SITE        39
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   ACT_SITE        258
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         137
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         306
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   MOD_RES         39
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
SQ   SEQUENCE   364 AA;  38092 MW;  3287041D16E6F5F7 CRC64;
     MTATSPHGAR LTINLRALAA NWRRLAEEAA GAECAAVIKA DAYGTGIDRA GPALWRAGCR
     TFFVAHLSEA ERARAALPEA VIYVLNGLPP GSAPAYRDRA LRPVLGSREE IEEWAAFCRA
     RGERLPAALH VDTGMNRLGL SPDEALALAG GAALEDVAAS LLVSHLVSAE VPGDAVTARQ
     VADFARVAAA FPGLTASLGN SAGTFLGARA RHEMVRPGYA LYGGNPRPGG PNPMRPVVRL
     DATILQVRDV PPGATAGYNA RWTAPGPRRL ATLSLGYADG YPRAGSGRAE AVVAGRRCPV
     VGTISMDLVI LDVTDAPPEA ARRGARATLI GEGLDIDEVG QRAGTIGYEI LTNLGRRSER
     AYID