ID   E1Q2S1_HELPP            Unreviewed;       377 AA.
AC   E1Q2S1;
DT   30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT   30-NOV-2010, sequence version 1.
DT   27-MAR-2024, entry version 75.
DE   RecName: Full=Alanine racemase {ECO:0000256|HAMAP-Rule:MF_01201};
DE            EC=5.1.1.1 {ECO:0000256|HAMAP-Rule:MF_01201};
GN   OrderedLocusNames=HPPC_04750 {ECO:0000313|EMBL:ADO07169.1};
OS   Helicobacter pylori (strain PeCan4).
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=765963 {ECO:0000313|EMBL:ADO07169.1, ECO:0000313|Proteomes:UP000006863};
RN   [1] {ECO:0000313|Proteomes:UP000006863}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PeCan4 {ECO:0000313|Proteomes:UP000006863};
RA   Kersulyte D., Vasquez J., Gilman R.H., Berg D.E.;
RT   "Complete genome sequence of Helicobacter pylori strain PeCan4.";
RL   Submitted (JUN-2010) 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: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, ECO:0000256|HAMAP-
CC         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; CP002074; ADO07169.1; -; Genomic_DNA.
DR   RefSeq; WP_000917921.1; NC_014555.1.
DR   AlphaFoldDB; E1Q2S1; -.
DR   KEGG; hpc:HPPC_04750; -.
DR   HOGENOM; CLU_028393_2_2_7; -.
DR   UniPathway; UPA00042; UER00497.
DR   Proteomes; UP000006863; 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   CDD; cd00430; PLPDE_III_AR; 1.
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          250..377
FT                   /note="Alanine racemase C-terminal"
FT                   /evidence="ECO:0000259|SMART:SM01005"
FT   ACT_SITE        37
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   ACT_SITE        271
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   BINDING         135
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   BINDING         319
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   MOD_RES         37
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-50"
SQ   SEQUENCE   377 AA;  41857 MW;  F4D2850873C0E28F CRC64;
     MLKRASFVEV DTASLRHNFS AVKSIVPKDA HIMAVVKANA YGVGAIKASE IFLQEGANYL
     GVATLDEALE LRSHFSKTPI LILGYSPNSN ASMLIDNDLS AMIFSLEQAE VFSQMALKSQ
     KRLKIHLKID TGMHRLGLEP NFKSIETIKK IRALKGLEVE GIFTHLSNAD AKIKTHAKNQ
     MKAFNAFLEQ LLDQKIEFQY RHAYNSAGIL SLCNGNENRF LNLYRPGIML YGFYPSNGMK
     ETCPTILKNV ISLKAQIVQI RSVKKGEFIG YGEHFYTNEE TLVGVLALGY ADGLMRALGN
     RTQVAINNQL APLIGKVCMD QCFVKLNNIQ AKEGDEVILF GDKSAKANDA SEIAALLNTI
     PYETISTLSK RLERVYI
//