ID   XYLA_HALH5              Reviewed;         440 AA.
AC   Q9K993;
DT   26-SEP-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   27-MAR-2024, entry version 131.
DE   RecName: Full=Xylose isomerase {ECO:0000255|HAMAP-Rule:MF_00455};
DE            EC=5.3.1.5 {ECO:0000255|HAMAP-Rule:MF_00455};
GN   Name=xylA {ECO:0000255|HAMAP-Rule:MF_00455}; OrderedLocusNames=BH2757;
OS   Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae;
OC   Halalkalibacterium (ex Joshi et al. 2022).
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=alpha-D-xylose = alpha-D-xylulofuranose; Xref=Rhea:RHEA:22816,
CC         ChEBI:CHEBI:28518, ChEBI:CHEBI:188998; EC=5.3.1.5;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00455};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00455};
CC       Note=Binds 2 magnesium ions per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00455};
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00455}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00455}.
CC   -!- SIMILARITY: Belongs to the xylose isomerase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00455}.
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DR   EMBL; BA000004; BAB06476.1; -; Genomic_DNA.
DR   PIR; E83994; E83994.
DR   RefSeq; WP_010898905.1; NC_002570.2.
DR   AlphaFoldDB; Q9K993; -.
DR   SMR; Q9K993; -.
DR   STRING; 272558.gene:10728657; -.
DR   KEGG; bha:BH2757; -.
DR   eggNOG; COG2115; Bacteria.
DR   HOGENOM; CLU_037261_1_0_9; -.
DR   OrthoDB; 9763981at2; -.
DR   Proteomes; UP000001258; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009045; F:xylose isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0042732; P:D-xylose metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.150; Divalent-metal-dependent TIM barrel enzymes; 1.
DR   HAMAP; MF_00455; Xylose_isom_A; 1.
DR   InterPro; IPR036237; Xyl_isomerase-like_sf.
DR   InterPro; IPR013452; Xylose_isom_bac.
DR   InterPro; IPR001998; Xylose_isomerase.
DR   NCBIfam; TIGR02630; xylose_isom_A; 1.
DR   PANTHER; PTHR48320; -; 1.
DR   PANTHER; PTHR48320:SF1; XYLOSE ISOMERASE; 1.
DR   PRINTS; PR00688; XYLOSISMRASE.
DR   SUPFAM; SSF51658; Xylose isomerase-like; 1.
DR   PROSITE; PS51415; XYLOSE_ISOMERASE; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Cytoplasm; Isomerase; Magnesium; Metal-binding;
KW   Reference proteome; Xylose metabolism.
FT   CHAIN           1..440
FT                   /note="Xylose isomerase"
FT                   /id="PRO_0000195762"
FT   ACT_SITE        99
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   ACT_SITE        102
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         230
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         266
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         266
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         269
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         294
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         305
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         307
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
FT   BINDING         337
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00455"
SQ   SEQUENCE   440 AA;  49967 MW;  D4EB48A9FCA2D24E CRC64;
     MTFFNDVEKV QYEGPRSTNP YAFKYYNPEE IVAGKTMAEH LRFSIAYWHT FVGDGSDPFG
     VGTMQRPWDQ YSGMDLAKAR VEAAFEFFEK LNVPYFCFHD VDVAPEGETL ADTYKNLDEI
     VLMIKDYMKT SKTKLLWNTA NMFTHPRWIH GAATSPNADV YAYAAAKVKK GLEIGKELGA
     ENYVFWGGRE GYETLLNTNM KLELDNLARF FHMAVDYAKE IGFDAQFLIE PKPKEPTKHQ
     YDFDVATGIA FLKTHGLDEH FKFNIEANHA TLAGHTFEHE LHLARIHDML GSVDANQGDT
     LLGWDTDEFP TDLYTTTLAM YEILKNDGLG KGGLNFDAKV RRGSFEANDL FHAHIAGMDS
     FAIGLKVANQ LLEDRVLEDV IDNRYKSYQS GIGQKIANND TNLKELEAYA LSLGEIKHSS
     GQQERIKATL NQYLLRVNEY
//