ID   ARAA_THESQ              Reviewed;         496 AA.
AC   B1L9M7;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=L-arabinose isomerase {ECO:0000255|HAMAP-Rule:MF_00519};
DE            EC=5.3.1.4 {ECO:0000255|HAMAP-Rule:MF_00519};
GN   Name=araA {ECO:0000255|HAMAP-Rule:MF_00519}; OrderedLocusNames=TRQ2_0672;
OS   Thermotoga sp. (strain RQ2).
OC   Bacteria; Thermotogae; Thermotogales; Thermotogaceae; Thermotoga;
OC   unclassified Thermotoga.
OX   NCBI_TaxID=126740;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RQ2;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Bruce D.B., Goodwin L., Pitluck S., Saunders E., Brettin T.,
RA   Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Mikhailova N., Nelson K., Gogarten J.P., Noll K.,
RA   Richardson P.;
RT   "Complete sequence of Thermotoga sp. RQ2.";
RL   Submitted (MAR-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the conversion of L-arabinose to L-ribulose.
CC       {ECO:0000255|HAMAP-Rule:MF_00519}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=beta-L-arabinopyranose = L-ribulose; Xref=Rhea:RHEA:14821,
CC         ChEBI:CHEBI:16880, ChEBI:CHEBI:40886; EC=5.3.1.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00519};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00519};
CC       Note=Binds 1 Mn(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00519};
CC   -!- PATHWAY: Carbohydrate degradation; L-arabinose degradation via L-
CC       ribulose; D-xylulose 5-phosphate from L-arabinose (bacterial route):
CC       step 1/3. {ECO:0000255|HAMAP-Rule:MF_00519}.
CC   -!- SIMILARITY: Belongs to the arabinose isomerase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00519}.
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DR   EMBL; CP000969; ACB09025.1; -; Genomic_DNA.
DR   RefSeq; WP_012310673.1; NC_010483.1.
DR   AlphaFoldDB; B1L9M7; -.
DR   SMR; B1L9M7; -.
DR   EnsemblBacteria; ACB09025; ACB09025; TRQ2_0672.
DR   KEGG; trq:TRQ2_0672; -.
DR   HOGENOM; CLU_045663_0_0_0; -.
DR   OMA; HMLEICP; -.
DR   OrthoDB; 507566at2; -.
DR   UniPathway; UPA00145; UER00565.
DR   Proteomes; UP000001687; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR   GO; GO:0008733; F:L-arabinose isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019569; P:L-arabinose catabolic process to xylulose 5-phosphate; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.10940; -; 1.
DR   HAMAP; MF_00519; Arabinose_Isome; 1.
DR   InterPro; IPR024664; Ara_Isoase_C.
DR   InterPro; IPR038583; AraA_N_sf.
DR   InterPro; IPR004216; Fuc/Ara_isomerase_C.
DR   InterPro; IPR009015; Fucose_isomerase_N/cen_sf.
DR   InterPro; IPR003762; Lara_isomerase.
DR   PANTHER; PTHR38464; PTHR38464; 1.
DR   Pfam; PF11762; Arabinose_Iso_C; 1.
DR   Pfam; PF02610; Arabinose_Isome; 1.
DR   PIRSF; PIRSF001478; L-ara_isomerase; 1.
DR   SUPFAM; SSF50443; SSF50443; 1.
DR   SUPFAM; SSF53743; SSF53743; 1.
PE   3: Inferred from homology;
KW   Arabinose catabolism; Carbohydrate metabolism; Isomerase; Manganese;
KW   Metal-binding.
FT   CHAIN           1..496
FT                   /note="L-arabinose isomerase"
FT                   /id="PRO_1000127621"
FT   BINDING         302
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00519"
FT   BINDING         329
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00519"
FT   BINDING         346
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00519"
FT   BINDING         445
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00519"
SQ   SEQUENCE   496 AA;  56661 MW;  26A6B041E1D1AD85 CRC64;
     MIDLKQYEFW FLVGSQYLYG LETLKKVEQQ ASKIVDSLND DPIFPSKIVL KPVLKSSSEI
     TEIFEKANAD PKCAGVIVWM HTFSPSKMWI RGLSINKKPL LHLHTQYNRE IPWDTIDMDY
     MNLNQSAHGD REHGFIHARM RLPRKVVVGH WEEKEVREKI AKWMRVACAI QDGRMGQIVR
     FGDNMREVAS TEGDKVEAQI KLGWSINTWG VGELAERVKA VPEREVEELL TEYREKYIMP
     EDEYSLKAIR EQAKIEIALR EFLKEKNAIA FTTTFEDLHD LPQLPGLAVQ RLMEEGYGFG
     AEGDWKAAGL VRAIKVMGTG LPGGTSFMED YTYHLTPGNE LVLGAHMLEV CPTIAKEKPR
     IEVHPLSIGG KADPARLVFD GQEGPAVNAS IVDMGNRFRL VVNKVLSVPI ERKMPKLPTA
     RVLWKPMPDF KRATTAWILA GGSHHTAFST AIDIEYLIDW AEALEIEYVV IDENLDLEDF
     KKELRWNELY WGLLKR