ID   PEPE_HAEIN              Reviewed;         218 AA.
AC   P44766;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   19-DEC-2001, sequence version 2.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=Peptidase E {ECO:0000255|HAMAP-Rule:MF_00510};
DE            EC=3.4.13.21 {ECO:0000255|HAMAP-Rule:MF_00510};
DE   AltName: Full=Alpha-aspartyl dipeptidase {ECO:0000255|HAMAP-Rule:MF_00510};
DE   AltName: Full=Asp-specific dipeptidase {ECO:0000255|HAMAP-Rule:MF_00510};
DE   AltName: Full=Dipeptidase E {ECO:0000255|HAMAP-Rule:MF_00510};
GN   Name=pepE {ECO:0000255|HAMAP-Rule:MF_00510}; OrderedLocusNames=HI_0587;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
CC   -!- FUNCTION: Hydrolyzes dipeptides containing N-terminal aspartate
CC       residues. May play a role in allowing the cell to use peptide aspartate
CC       to spare carbon otherwise required for the synthesis of the aspartate
CC       family of amino acids. {ECO:0000255|HAMAP-Rule:MF_00510}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Dipeptidase E catalyzes the hydrolysis of dipeptides Asp-|-
CC         Xaa. It does not act on peptides with N-terminal Glu, Asn or Gln, nor
CC         does it cleave isoaspartyl peptides.; EC=3.4.13.21;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00510};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00510}.
CC   -!- SIMILARITY: Belongs to the peptidase S51 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00510}.
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DR   EMBL; L42023; AAC22244.1; -; Genomic_DNA.
DR   PIR; C64079; C64079.
DR   RefSeq; NP_438745.2; NC_000907.1.
DR   RefSeq; WP_010869014.1; NC_000907.1.
DR   AlphaFoldDB; P44766; -.
DR   SMR; P44766; -.
DR   STRING; 71421.HI_0587; -.
DR   MEROPS; S51.001; -.
DR   EnsemblBacteria; AAC22244; AAC22244; HI_0587.
DR   KEGG; hin:HI_0587; -.
DR   PATRIC; fig|71421.8.peg.608; -.
DR   eggNOG; COG3340; Bacteria.
DR   HOGENOM; CLU_071689_0_0_6; -.
DR   PhylomeDB; P44766; -.
DR   BioCyc; HINF71421:G1GJ1-599-MON; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016805; F:dipeptidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008236; F:serine-type peptidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-UniRule.
DR   CDD; cd03146; GAT1_Peptidase_E; 1.
DR   Gene3D; 3.40.50.880; -; 1.
DR   HAMAP; MF_00510; Peptidase_E; 1.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR005320; Peptidase_S51.
DR   InterPro; IPR023172; Peptidase_S51_dipeptidase-E.
DR   Pfam; PF03575; Peptidase_S51; 1.
DR   SUPFAM; SSF52317; SSF52317; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Dipeptidase; Hydrolase; Protease; Reference proteome;
KW   Serine protease.
FT   CHAIN           1..218
FT                   /note="Peptidase E"
FT                   /id="PRO_0000209958"
FT   ACT_SITE        123
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00510"
FT   ACT_SITE        138
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00510"
FT   ACT_SITE        160
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00510"
SQ   SEQUENCE   218 AA;  24420 MW;  6201B0A3AA1C31B9 CRC64;
     MKNMLLLSSS KYKNTGYLEH TIPWLQNFLA DYRGKTIAFV PYAGVSRTFD EYEKTVQNAL
     SDLGMNIVSV HRGKQHRDII EQADVIAIGG GNTFCLLKQL YEHNLIDIIR EKVNNGTPYF
     GWSAGANVAG SSIMTTNDMP ITYPPSFQAL QLFPHQINPH FISGKMQGHN GESREERLAE
     FLLVNPTALV YALPEGSALH IQNGMGNRIG RKSYFVLQ