ID Q21MA3_SACD2 Unreviewed; 409 AA.
AC Q21MA3;
DT 18-APR-2006, integrated into UniProtKB/TrEMBL.
DT 18-APR-2006, sequence version 1.
DT 24-JAN-2024, entry version 116.
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=Sde_0914 {ECO:0000313|EMBL:ABD80176.1};
OS Saccharophagus degradans (strain 2-40 / ATCC 43961 / DSM 17024).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC Cellvibrionaceae; Saccharophagus.
OX NCBI_TaxID=203122 {ECO:0000313|EMBL:ABD80176.1, ECO:0000313|Proteomes:UP000001947};
RN [1] {ECO:0000313|EMBL:ABD80176.1, ECO:0000313|Proteomes:UP000001947}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=2-40 / ATCC 43961 / DSM 17024
RC {ECO:0000313|Proteomes:UP000001947};
RX PubMed=18516288; DOI=10.1371/journal.pgen.1000087;
RA Weiner R.M., Taylor L.E.II., Henrissat B., Hauser L., Land M.,
RA Coutinho P.M., Rancurel C., Saunders E.H., Longmire A.G., Zhang H.,
RA Bayer E.A., Gilbert H.J., Larimer F., Zhulin I.B., Ekborg N.A., Lamed R.,
RA Richardson P.M., Borovok I., Hutcheson S.;
RT "Complete genome sequence of the complex carbohydrate-degrading marine
RT bacterium, Saccharophagus degradans strain 2-40 T.";
RL PLoS Genet. 4:E1000087-E1000087(2008).
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; CP000282; ABD80176.1; -; Genomic_DNA.
DR RefSeq; WP_011467397.1; NC_007912.1.
DR AlphaFoldDB; Q21MA3; -.
DR STRING; 203122.Sde_0914; -.
DR KEGG; sde:Sde_0914; -.
DR eggNOG; COG0787; Bacteria.
DR HOGENOM; CLU_028393_1_1_6; -.
DR OMA; HMTHFSD; -.
DR UniPathway; UPA00042; UER00497.
DR Proteomes; UP000001947; Chromosome.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
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; IPR020622; Ala_racemase_pyridoxalP-BS.
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.
DR PROSITE; PS00395; ALANINE_RACEMASE; 1.
PE 3: Inferred from homology;
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01201};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_01201}; Reference proteome {ECO:0000313|Proteomes:UP000001947};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 21..43
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 277..404
FT /note="Alanine racemase C-terminal"
FT /evidence="ECO:0000259|SMART:SM01005"
FT ACT_SITE 76
FT /note="Proton acceptor; specific for D-alanine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT ACT_SITE 298
FT /note="Proton acceptor; specific for L-alanine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT BINDING 173
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT ECO:0000256|PIRSR:PIRSR600821-52"
FT BINDING 346
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT ECO:0000256|PIRSR:PIRSR600821-52"
FT MOD_RES 76
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT ECO:0000256|PIRSR:PIRSR600821-50"
SQ SEQUENCE 409 AA; 43715 MW; F05152A55B42D6E6 CRC64;
MTVCLLLFAL KRRWRWFGFR LYANALVLFL ITPVDIAAPM TAFSGKLTIN LDAIAANWRL
IQSRLAAGAR AGAVVKADAY GLGVQEVAPA LYRAGCRDFF VANLAEALLV RSLLAGDAQV
IVLSGCAPRE ESEFVRNGIV PVITSATMAE RWLGVKGASK CGAVLKVNSG MGRLGLEPNE
FESLLMHPNF ANAGFFMLMS HLACADQFDH PLNAAQLQRF ERMRQAFLKK VPAATASLAN
SSGIFISPSF HYDVARPGVA LYGGNPLQRR QNPMRKVVDL RLPVLQVRHL ASGEAVGYGA
SFITQRPSVL LTLAGGYADG LFRSAAAGGV VYLGEKPLPI VGRVSMDSIV VDATDVPQAA
MPAEGNMLEL LGDNVGVDDL AAAAGTIGYE ILTSLGGRYR REYIGGAND
//