ID   PYRI_THEAC              Reviewed;         151 AA.
AC   Q9HKM3;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2001, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=Aspartate carbamoyltransferase regulatory chain;
GN   Name=pyrI; OrderedLocusNames=Ta0574;
OS   Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC
OS   15155 / AMRC-C165).
OC   Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC   Thermoplasmataceae; Thermoplasma.
OX   NCBI_TaxID=273075;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165;
RX   PubMed=11029001; DOI=10.1038/35035069;
RA   Ruepp A., Graml W., Santos-Martinez M.-L., Koretke K.K., Volker C.,
RA   Mewes H.-W., Frishman D., Stocker S., Lupas A.N., Baumeister W.;
RT   "The genome sequence of the thermoacidophilic scavenger Thermoplasma
RT   acidophilum.";
RL   Nature 407:508-513(2000).
CC   -!- FUNCTION: Involved in allosteric regulation of aspartate
CC       carbamoyltransferase. {ECO:0000250}.
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Contains catalytic and regulatory chains. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PyrI family. {ECO:0000305}.
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DR   EMBL; AL445064; CAC11714.1; -; Genomic_DNA.
DR   RefSeq; WP_010900999.1; NC_002578.1.
DR   AlphaFoldDB; Q9HKM3; -.
DR   SMR; Q9HKM3; -.
DR   STRING; 273075.Ta0574; -.
DR   EnsemblBacteria; CAC11714; CAC11714; CAC11714.
DR   GeneID; 1456164; -.
DR   KEGG; tac:Ta0574; -.
DR   eggNOG; arCOG04229; Archaea.
DR   HOGENOM; CLU_128576_0_0_2; -.
DR   OMA; CPNRNCI; -.
DR   OrthoDB; 101957at2157; -.
DR   Proteomes; UP000001024; Chromosome.
DR   GO; GO:0009347; C:aspartate carbamoyltransferase complex; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006207; P:'de novo' pyrimidine nucleobase biosynthetic process; IEA:InterPro.
DR   GO; GO:0006221; P:pyrimidine nucleotide biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.70.140; -; 1.
DR   HAMAP; MF_00002; Asp_carb_tr_reg; 1.
DR   InterPro; IPR020545; Asp_carbamoyltransf_reg_N.
DR   InterPro; IPR002801; Asp_carbamoylTrfase_reg.
DR   InterPro; IPR020542; Asp_carbamoyltrfase_reg_C.
DR   InterPro; IPR036792; Asp_carbatrfase_reg_C_sf.
DR   InterPro; IPR036793; Asp_carbatrfase_reg_N_sf.
DR   PANTHER; PTHR35805; PTHR35805; 1.
DR   Pfam; PF01948; PyrI; 1.
DR   Pfam; PF02748; PyrI_C; 1.
DR   SUPFAM; SSF54893; SSF54893; 1.
DR   SUPFAM; SSF57825; SSF57825; 1.
DR   TIGRFAMs; TIGR00240; ATCase_reg; 1.
PE   3: Inferred from homology;
KW   Metal-binding; Pyrimidine biosynthesis; Reference proteome; Zinc.
FT   CHAIN           1..151
FT                   /note="Aspartate carbamoyltransferase regulatory chain"
FT                   /id="PRO_0000142345"
FT   BINDING         108
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         113
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         137
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
FT   BINDING         140
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   151 AA;  17141 MW;  5FD68245A22B7AF6 CRC64;
     MEKTLRISKI RDGTVIDHVP SGKGIRVIGV LGVHEDVNYT VSLAIHVPSN KMGFKDVIKI
     ENRFLDRNEL DMISLIAPNA TISIIKNYEI SEKFQVELPS RLIGVLKCKN QNCITNTREP
     VESEFEIVSK HPLVIRCVYC ERTMGEKDIF T