ID   HIS4_BUCAI              Reviewed;         246 AA.
AC   P57205;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 114.
DE   RecName: Full=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase;
DE            EC=5.3.1.16;
DE   AltName: Full=Phosphoribosylformimino-5-aminoimidazole carboxamide ribotide isomerase;
GN   Name=hisA; OrderedLocusNames=BU104;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1-(5-phospho-beta-D-ribosyl)-5-[(5-phospho-beta-D-
CC         ribosylamino)methylideneamino]imidazole-4-carboxamide = 5-[(5-
CC         phospho-1-deoxy-D-ribulos-1-ylimino)methylamino]-1-(5-phospho-beta-D-
CC         ribosyl)imidazole-4-carboxamide; Xref=Rhea:RHEA:15469,
CC         ChEBI:CHEBI:58435, ChEBI:CHEBI:58525; EC=5.3.1.16;
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 4/9.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the HisA/HisF family. {ECO:0000305}.
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DR   EMBL; BA000003; BAB12823.1; -; Genomic_DNA.
DR   RefSeq; NP_239937.1; NC_002528.1.
DR   RefSeq; WP_009874059.1; NC_002528.1.
DR   AlphaFoldDB; P57205; -.
DR   SMR; P57205; -.
DR   STRING; 107806.10038788; -.
DR   EnsemblBacteria; BAB12823; BAB12823; BAB12823.
DR   KEGG; buc:BU104; -.
DR   PATRIC; fig|107806.10.peg.112; -.
DR   eggNOG; COG0106; Bacteria.
DR   HOGENOM; CLU_048577_1_2_6; -.
DR   UniPathway; UPA00031; UER00009.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003949; F:1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino]imidazole-4-carboxamide isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd04732; HisA; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01014; HisA; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR006062; His_biosynth.
DR   InterPro; IPR006063; HisA_bact_arch.
DR   InterPro; IPR044524; Isoase_HisA-like.
DR   InterPro; IPR023016; Isoase_HisA-like_bact.
DR   InterPro; IPR011060; RibuloseP-bd_barrel.
DR   PANTHER; PTHR43090; PTHR43090; 1.
DR   Pfam; PF00977; His_biosynth; 1.
DR   SUPFAM; SSF51366; SSF51366; 1.
DR   TIGRFAMs; TIGR00007; TIGR00007; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Histidine biosynthesis; Isomerase;
KW   Reference proteome.
FT   CHAIN           1..246
FT                   /note="1-(5-phosphoribosyl)-5-[(5-
FT                   phosphoribosylamino)methylideneamino] imidazole-4-
FT                   carboxamide isomerase"
FT                   /id="PRO_0000141987"
FT   ACT_SITE        7
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        129
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   246 AA;  27568 MW;  44FD1130F475E0D6 CRC64;
     MIIPAFDLIN GRTVRLYQGD YSNQKNYNVN LFNSLEVYKS KGIEIVHLVD LDGAKNSANR
     QIELFKKIVS HTTVPVQVGG GIRTTKDIST LLDLGVKRVV IGSSIVSNKK QVKQWLNFYG
     PDAIVLALDV HVDGSNKKEI SIDGWQKKTN FILEEIIEYF LSSGLKHVLC TDISRDGTLL
     GPNFKLYKEI CSNFKNINFQ ASGGVASLQD IIFLKKTGVK SIIIGRSLLE KKFTIEEAVK
     CWQRES