ID   HISZ_POLNS              Reviewed;         387 AA.
AC   B1XU84;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   25-MAY-2022, entry version 66.
DE   RecName: Full=ATP phosphoribosyltransferase regulatory subunit {ECO:0000255|HAMAP-Rule:MF_00125};
GN   Name=hisZ {ECO:0000255|HAMAP-Rule:MF_00125}; OrderedLocusNames=Pnec_0675;
OS   Polynucleobacter necessarius subsp. necessarius (strain STIR1).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Polynucleobacter.
OX   NCBI_TaxID=452638;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=STIR1;
RX   PubMed=24167248; DOI=10.1073/pnas.1316687110;
RA   Boscaro V., Felletti M., Vannini C., Ackerman M.S., Chain P.S.,
RA   Malfatti S., Vergez L.M., Shin M., Doak T.G., Lynch M., Petroni G.;
RT   "Polynucleobacter necessarius, a model for genome reduction in both free-
RT   living and symbiotic bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 110:18590-18595(2013).
CC   -!- FUNCTION: Required for the first step of histidine biosynthesis. May
CC       allow the feedback regulation of ATP phosphoribosyltransferase activity
CC       by histidine. {ECO:0000255|HAMAP-Rule:MF_00125}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 1/9.
CC       {ECO:0000255|HAMAP-Rule:MF_00125}.
CC   -!- SUBUNIT: Heteromultimer composed of HisG and HisZ subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00125}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00125}.
CC   -!- MISCELLANEOUS: This function is generally fulfilled by the C-terminal
CC       part of HisG, which is missing in some bacteria such as this one.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       HisZ subfamily. {ECO:0000255|HAMAP-Rule:MF_00125}.
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DR   EMBL; CP001010; ACB43911.1; -; Genomic_DNA.
DR   AlphaFoldDB; B1XU84; -.
DR   SMR; B1XU84; -.
DR   STRING; 452638.Pnec_0675; -.
DR   EnsemblBacteria; ACB43911; ACB43911; Pnec_0675.
DR   KEGG; pne:Pnec_0675; -.
DR   eggNOG; COG3705; Bacteria.
DR   HOGENOM; CLU_025113_0_1_4; -.
DR   OMA; ELVMPPM; -.
DR   UniPathway; UPA00031; UER00006.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00773; HisRS-like_core; 1.
DR   Gene3D; 3.30.930.10; -; 1.
DR   HAMAP; MF_00125; HisZ; 1.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR041715; HisRS-like_core.
DR   InterPro; IPR004516; HisRS/HisZ.
DR   InterPro; IPR004517; HisZ.
DR   PANTHER; PTHR43707; PTHR43707; 1.
DR   Pfam; PF13393; tRNA-synt_His; 1.
DR   PIRSF; PIRSF001549; His-tRNA_synth; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00443; hisZ_biosyn_reg; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Histidine biosynthesis.
FT   CHAIN           1..387
FT                   /note="ATP phosphoribosyltransferase regulatory subunit"
FT                   /id="PRO_1000095465"
SQ   SEQUENCE   387 AA;  42057 MW;  9733945EDE308E8B CRC64;
     MNRWLLPEDI TDVMPAEACK VESLRRAVLD LYQSYGYELV APPILEFLDS LLTGTGSDLN
     LQTFKLVDQL SGRTLGLRAD MTPQVARIDA HLLNRADVTR LCYAGSVAHA RTPVGSSARE
     ELQLGAEIYG CATWEADLEA ITLLLKTLSV AGLEKVYLDL SHAGILAGIL DGQSLDKETI
     EALYGLLQSK DRPRLGEWST CLPENVAKAL VALIELNGPC AEVLAKAKKE LPKHAAIDKA
     LADLERLVSA AANLSANVEL SIDLADLRGY QYHSGVMFAA YVDRLPQPIA RGGRYDHVGQ
     AFGRPRPATG FSLDLLTLAN LSPLNVRKMA ITAPWVEDAE LSKAIAALRD KGEVVIQVLA
     GTTLEAAEYQ CDRELVKQGS SWEVKKK