ID   ALR_STREM               Reviewed;         366 AA.
AC   B4U178;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 73.
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=Sez_0369;
OS   Streptococcus equi subsp. zooepidemicus (strain MGCS10565).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=552526;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MGCS10565;
RX   PubMed=18716664; DOI=10.1371/journal.pone.0003026;
RA   Beres S.B., Sesso R., Pinto S.W.L., Hoe N.P., Porcella S.F., Deleo F.R.,
RA   Musser J.M.;
RT   "Genome sequence of a lancefield group C Streptococcus zooepidemicus strain
RT   causing epidemic nephritis: new information about an old disease.";
RL   PLoS ONE 3:E3026-E3026(2008).
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; CP001129; ACG61745.1; -; Genomic_DNA.
DR   RefSeq; WP_012515021.1; NC_011134.1.
DR   AlphaFoldDB; B4U178; -.
DR   SMR; B4U178; -.
DR   EnsemblBacteria; ACG61745; ACG61745; Sez_0369.
DR   KEGG; sez:Sez_0369; -.
DR   HOGENOM; CLU_028393_2_1_9; -.
DR   OMA; WEILCGF; -.
DR   UniPathway; UPA00042; UER00497.
DR   Proteomes; UP000001873; Chromosome.
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; IPR020622; Ala_racemase_pyridoxalP-BS.
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.
DR   PROSITE; PS00395; ALANINE_RACEMASE; 1.
PE   3: Inferred from homology;
KW   Isomerase; Pyridoxal phosphate.
FT   CHAIN           1..366
FT                   /note="Alanine racemase"
FT                   /id="PRO_1000138625"
FT   ACT_SITE        40
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   ACT_SITE        263
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         136
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         310
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   MOD_RES         40
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
SQ   SEQUENCE   366 AA;  40143 MW;  35614E47486130AD CRC64;
     MISSLHRPTV ARVDLEAIQA NIDKIQRHIP KKVKTYAVVK ANAYGHGAVA VSKAVEDQVD
     GYCVSNLDEA LELRQAGIDK EILILGVILA SELQLAIKHQ LTITVASLEW LELAKKESVD
     FSQLHVHVKV DSGMGRIGVR SLAEANQLIS ILSDMGVQLD GIFTHFATAD ESDHAMFDKQ
     LTFFKQLVEQ LDKRPALVHA SNSATSLWHS ETIFNAIRLG IVIYGLNPSG NSLSLPCPLK
     EALSLESRLV HVKQIQAGDS VGYGASYVAA ESEYVGTLPI GYADGWTRNM QGFKVLVEGE
     FCDIIGRVSM DQLTIRLLQA YPIGTKVTLI GQQGKQVITA TDVADYRGTI NYEVLCLLSD
     RIPREY