ID PEPT_ECOUT Reviewed; 408 AA.
AC Q1RD26;
DT 23-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT 16-MAY-2006, sequence version 1.
DT 27-MAR-2024, entry version 102.
DE RecName: Full=Peptidase T {ECO:0000255|HAMAP-Rule:MF_00550};
DE EC=3.4.11.4 {ECO:0000255|HAMAP-Rule:MF_00550};
DE AltName: Full=Aminotripeptidase {ECO:0000255|HAMAP-Rule:MF_00550};
DE Short=Tripeptidase {ECO:0000255|HAMAP-Rule:MF_00550};
DE AltName: Full=Tripeptide aminopeptidase {ECO:0000255|HAMAP-Rule:MF_00550};
GN Name=pepT {ECO:0000255|HAMAP-Rule:MF_00550}; OrderedLocusNames=UTI89_C1256;
OS Escherichia coli (strain UTI89 / UPEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=364106;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UTI89 / UPEC;
RX PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S.,
RA Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J.,
RA Gordon J.I.;
RT "Identification of genes subject to positive selection in uropathogenic
RT strains of Escherichia coli: a comparative genomics approach.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
CC -!- FUNCTION: Cleaves the N-terminal amino acid of tripeptides.
CC {ECO:0000255|HAMAP-Rule:MF_00550}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Release of the N-terminal residue from a tripeptide.;
CC EC=3.4.11.4; Evidence={ECO:0000255|HAMAP-Rule:MF_00550};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00550};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00550};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00550}.
CC -!- SIMILARITY: Belongs to the peptidase M20B family. {ECO:0000255|HAMAP-
CC Rule:MF_00550}.
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DR EMBL; CP000243; ABE06738.1; -; Genomic_DNA.
DR RefSeq; WP_000359446.1; NZ_CP064825.1.
DR AlphaFoldDB; Q1RD26; -.
DR SMR; Q1RD26; -.
DR MEROPS; M20.003; -.
DR KEGG; eci:UTI89_C1256; -.
DR HOGENOM; CLU_053676_0_0_6; -.
DR Proteomes; UP000001952; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008237; F:metallopeptidase activity; IEA:UniProtKB-KW.
DR GO; GO:0045148; F:tripeptide aminopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0043171; P:peptide catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-UniRule.
DR CDD; cd03892; M20_peptT; 1.
DR Gene3D; 3.30.70.360; -; 1.
DR Gene3D; 3.40.630.10; Zn peptidases; 1.
DR HAMAP; MF_00550; Aminopeptidase_M20; 1.
DR InterPro; IPR001261; ArgE/DapE_CS.
DR InterPro; IPR036264; Bact_exopeptidase_dim_dom.
DR InterPro; IPR002933; Peptidase_M20.
DR InterPro; IPR011650; Peptidase_M20_dimer.
DR InterPro; IPR010161; Peptidase_M20B.
DR NCBIfam; TIGR01882; peptidase-T; 1.
DR PANTHER; PTHR42994; PEPTIDASE T; 1.
DR PANTHER; PTHR42994:SF1; PEPTIDASE T; 1.
DR Pfam; PF07687; M20_dimer; 1.
DR Pfam; PF01546; Peptidase_M20; 1.
DR PIRSF; PIRSF037215; Peptidase_M20B; 1.
DR SUPFAM; SSF55031; Bacterial exopeptidase dimerisation domain; 1.
DR SUPFAM; SSF53187; Zn-dependent exopeptidases; 1.
DR PROSITE; PS00758; ARGE_DAPE_CPG2_1; 1.
DR PROSITE; PS00759; ARGE_DAPE_CPG2_2; 1.
PE 3: Inferred from homology;
KW Aminopeptidase; Cytoplasm; Hydrolase; Metal-binding; Metalloprotease;
KW Protease; Zinc.
FT CHAIN 1..408
FT /note="Peptidase T"
FT /id="PRO_0000274014"
FT ACT_SITE 80
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT ACT_SITE 173
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 78
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 140
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 140
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 174
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 196
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
FT BINDING 379
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00550"
SQ SEQUENCE 408 AA; 44909 MW; 35744B1DF4CC1DA2 CRC64;
MDKLLERFLN YVSLDTQSKA GVRQVPSTEG QWKLLHLLKE QLEEMGLINV TLSEKGTLMA
TLPANVPGDI PAIGFISHVD TSPDCSGKNV NPQIVENYRG GDIALGIGDE VLSPVMFPVL
HQLLGQTLIT TDGKTLLGAD DKAGIAEIMT ALAVLQQKNI PHGDIRVAFT PDEEVGKGAK
HFDVDAFDAR WAYTVDGGGV GELEFENFNA ASVNIKIVGN NVHPGTAKGV MVNALSLAAR
IHAEVPADES PEMTEGYEGF YHLASMKGTV ERADMHYIIR DFDRKQFEAR KRKMMEIAKK
VGKGLHPDCY IELVIEDSYY NMREKVVEHP HILDIAQQAM RDCDIEPELK PIRGGTDGAQ
LSFMGLPCPN LFTGGYNYHG KHEFVTLEGM EKAVQVIVRI AELTAQRK
//
