ID   NTAQ1_RAT               Reviewed;         207 AA.
AC   Q5BJV9;
DT   06-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT   12-APR-2005, sequence version 1.
DT   03-AUG-2022, entry version 85.
DE   RecName: Full=Protein N-terminal glutamine amidohydrolase {ECO:0000305};
DE            EC=3.5.1.122 {ECO:0000250|UniProtKB:Q80WB5};
DE   AltName: Full=Protein NH2-terminal glutamine deamidase;
DE            Short=N-terminal Gln amidase;
DE            Short=Nt(Q)-amidase;
DE   AltName: Full=WDYHV motif-containing protein 1;
GN   Name=Ntaq1; Synonyms=Wdyhv1;
OS   Rattus norvegicus (Rat).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC   Murinae; Rattus.
OX   NCBI_TaxID=10116;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Ovary;
RX   PubMed=15489334; DOI=10.1101/gr.2596504;
RG   The MGC Project Team;
RT   "The status, quality, and expansion of the NIH full-length cDNA project:
RT   the Mammalian Gene Collection (MGC).";
RL   Genome Res. 14:2121-2127(2004).
CC   -!- FUNCTION: Mediates the side-chain deamidation of N-terminal glutamine
CC       residues to glutamate, an important step in N-end rule pathway of
CC       protein degradation. Conversion of the resulting N-terminal glutamine
CC       to glutamate renders the protein susceptible to arginylation,
CC       polyubiquitination and degradation as specified by the N-end rule. Does
CC       not act on substrates with internal or C-terminal glutamine and does
CC       not act on non-glutamine residues in any position. Does not deaminate
CC       acetylated N-terminal glutamine. With the exception of proline, all
CC       tested second-position residues on substrate peptides do not greatly
CC       influence the activity. In contrast, a proline at position 2, virtually
CC       abolishes deamidation of N-terminal glutamine.
CC       {ECO:0000250|UniProtKB:Q80WB5}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N-terminal L-glutaminyl-[protein] = N-terminal L-
CC         glutamyl-[protein] + NH4(+); Xref=Rhea:RHEA:50680, Rhea:RHEA-
CC         COMP:12668, Rhea:RHEA-COMP:12777, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:28938, ChEBI:CHEBI:64721, ChEBI:CHEBI:64722;
CC         EC=3.5.1.122; Evidence={ECO:0000250|UniProtKB:Q80WB5};
CC   -!- SUBUNIT: Monomer. {ECO:0000250|UniProtKB:Q96HA8}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytosol
CC       {ECO:0000250|UniProtKB:Q80WB5}. Nucleus {ECO:0000250|UniProtKB:Q80WB5}.
CC   -!- SIMILARITY: Belongs to the NTAQ1 family. {ECO:0000305}.
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DR   EMBL; BC091306; AAH91306.1; -; mRNA.
DR   RefSeq; NP_001020195.1; NM_001025024.1.
DR   AlphaFoldDB; Q5BJV9; -.
DR   SMR; Q5BJV9; -.
DR   STRING; 10116.ENSRNOP00000008785; -.
DR   PaxDb; Q5BJV9; -.
DR   Ensembl; ENSRNOT00000008785; ENSRNOP00000008785; ENSRNOG00000006700.
DR   GeneID; 362914; -.
DR   KEGG; rno:362914; -.
DR   UCSC; RGD:1311362; rat.
DR   CTD; 55093; -.
DR   RGD; 1311362; Wdyhv1.
DR   eggNOG; KOG3261; Eukaryota.
DR   GeneTree; ENSGT00390000014398; -.
DR   InParanoid; Q5BJV9; -.
DR   OMA; GWGTVYS; -.
DR   OrthoDB; 1337506at2759; -.
DR   PhylomeDB; Q5BJV9; -.
DR   PRO; PR:Q5BJV9; -.
DR   Proteomes; UP000002494; Chromosome 7.
DR   Bgee; ENSRNOG00000006700; Expressed in pancreas and 19 other tissues.
DR   ExpressionAtlas; Q5BJV9; baseline and differential.
DR   Genevisible; Q5BJV9; RN.
DR   GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR   GO; GO:0005634; C:nucleus; ISS:UniProtKB.
DR   GO; GO:0008418; F:protein-N-terminal asparagine amidohydrolase activity; IEA:InterPro.
DR   GO; GO:0070773; F:protein-N-terminal glutamine amidohydrolase activity; ISS:UniProtKB.
DR   GO; GO:0036211; P:protein modification process; ISS:UniProtKB.
DR   Gene3D; 3.10.620.10; -; 1.
DR   InterPro; IPR037132; N_Gln_amidohydro_ab_roll_sf.
DR   InterPro; IPR039733; NTAQ1.
DR   InterPro; IPR023128; Prot_N_Gln_amidohydro_ab_roll.
DR   PANTHER; PTHR13035; PTHR13035; 1.
DR   Pfam; PF09764; Nt_Gln_amidase; 1.
PE   2: Evidence at transcript level;
KW   Cytoplasm; Hydrolase; Nucleus; Reference proteome.
FT   CHAIN           1..207
FT                   /note="Protein N-terminal glutamine amidohydrolase"
FT                   /id="PRO_0000279411"
FT   ACT_SITE        30
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        83
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        99
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   207 AA;  24125 MW;  79BAD8A0C0A9DC7D CRC64;
     MEGDSRAATA SQYQPACPTR DACVYSSCYC EENIWKLCEY IKTHNQYLLE ECYAVFISNE
     KKMVPIWKQQ ARPENGPVIW DYHVVLLHVS REGQSFIYDL DTILPFPCPF DIYIEDALKS
     DDDIHPQFRR KFRVVRADSY LKNFASDRSH MKDSSGNWRE PPPEYPCIET GDSKMNLNDF
     ISMDPAVGWG AVYTLSEFVH RFSSKNY