ID   XYLA_HAEIN              Reviewed;         439 AA.
AC   P44398;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 134.
DE   RecName: Full=Xylose isomerase;
DE            EC=5.3.1.5;
GN   Name=xylA; OrderedLocusNames=HI_1112;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
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   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC       Note=Binds 2 magnesium ions per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Homotetramer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the xylose isomerase family. {ECO:0000305}.
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DR   EMBL; L42023; AAC22766.1; -; Genomic_DNA.
DR   PIR; D64183; ISHIX.
DR   RefSeq; NP_439269.1; NC_000907.1.
DR   RefSeq; WP_005651773.1; NC_000907.1.
DR   AlphaFoldDB; P44398; -.
DR   SMR; P44398; -.
DR   STRING; 71421.HI_1112; -.
DR   EnsemblBacteria; AAC22766; AAC22766; HI_1112.
DR   KEGG; hin:HI_1112; -.
DR   PATRIC; fig|71421.8.peg.1161; -.
DR   eggNOG; COG2115; Bacteria.
DR   HOGENOM; CLU_037261_1_0_6; -.
DR   OMA; TLAMYEI; -.
DR   PhylomeDB; P44398; -.
DR   BioCyc; HINF71421:G1GJ1-1147-MON; -.
DR   Proteomes; UP000000579; 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; IBA:GO_Central.
DR   GO; GO:0042843; P:D-xylose catabolic process; IBA:GO_Central.
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   PRINTS; PR00688; XYLOSISMRASE.
DR   SUPFAM; SSF51658; SSF51658; 1.
DR   TIGRFAMs; TIGR02630; xylose_isom_A; 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..439
FT                   /note="Xylose isomerase"
FT                   /id="PRO_0000195779"
FT   ACT_SITE        101
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        104
FT                   /evidence="ECO:0000250"
FT   BINDING         232
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         268
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         268
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         271
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         296
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         307
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         309
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         339
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   439 AA;  49896 MW;  24CD3CE4736A3EA6 CRC64;
     MTTYFDKIEK ISFEGEKSTN PFAFKHYDAN QVILGKTMAE HLRLAVCYWH TFCWNGNDMF
     GLGSLERSWQ KNSNLLAGAE QKADIAFEFL NKLGVPYYCF HDVDIAPEGN SVREYVQNFH
     HIVDILERKQ VETGVKLLWG TANCFTNPRY MSGAATNPNP EVFAWAATQV FNAMNATQRL
     GGENYVLWGG REGYETLLNT DLKREREQIG RFMQMVVEHK HKIGFKGTLL IEPKPQEPTK
     HQYDYDVATV YGFLKQFGLE KEIKVNIEAN HATLAGHTFQ HEIATACALD IFGSIDANRG
     DPQLGWDTDQ FPNSVEENTL VMYEILKHGG FTTGGFNFDA KIRRQSIDPY DLFYAHIGAI
     DVLALSLKRA AKMLQEETLQ KIVNERYAGW NSELGQHILQ GKTSLETLAQ LVQQKDLAPK
     PVSGQQEYLE NLVNQVIYS