LEP4_PSEPU
ID LEP4_PSEPU Reviewed; 288 AA.
AC P36642;
DT 01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-1994, sequence version 1.
DT 03-AUG-2022, entry version 82.
DE RecName: Full=Prepilin leader peptidase/N-methyltransferase;
DE AltName: Full=Protein PilD;
DE AltName: Full=Protein secretion protein XCPA;
DE Includes:
DE RecName: Full=Leader peptidase;
DE EC=3.4.23.43 {ECO:0000250|UniProtKB:P22610};
DE AltName: Full=Prepilin peptidase;
DE Includes:
DE RecName: Full=N-methyltransferase;
DE EC=2.1.1.- {ECO:0000250|UniProtKB:P22610};
GN Name=pilD; Synonyms=xcpA;
OS Pseudomonas putida (Arthrobacter siderocapsulatus).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=303;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=WCS358;
RX PubMed=7905475; DOI=10.1128/jb.176.3.642-650.1994;
RA de Groot A., Heijnen I., de Cock H., Filloux A., Tommassen J.;
RT "Characterization of type IV pilus genes in plant growth-promoting
RT Pseudomonas putida WCS358.";
RL J. Bacteriol. 176:642-650(1994).
CC -!- FUNCTION: Plays an essential role in type IV pili and type II
CC pseudopili formation by proteolytically removing the leader sequence
CC from substrate proteins and subsequently monomethylating the alpha-
CC amino group of the newly exposed N-terminal phenylalanine.
CC {ECO:0000250|UniProtKB:P22610}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Typically cleaves a -Gly-|-Phe- bond to release an N-terminal,
CC basic peptide of 5-8 residues from type IV prepilin, and then N-
CC methylates the new N-terminal amino group, the methyl donor being S-
CC adenosyl-L-methionine.; EC=3.4.23.43;
CC Evidence={ECO:0000250|UniProtKB:P22610};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000250|UniProtKB:P22610};
CC Note=Zinc is required for the N-terminal methylation of the mature
CC pilin, but not for signal peptide cleavage.
CC {ECO:0000250|UniProtKB:P22610};
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000250|UniProtKB:P22610}; Multi-pass membrane protein
CC {ECO:0000250|UniProtKB:P22610}.
CC -!- SIMILARITY: Belongs to the peptidase A24 family. {ECO:0000305}.
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DR EMBL; X74276; CAA52334.1; -; Genomic_DNA.
DR PIR; B36961; B36961.
DR AlphaFoldDB; P36642; -.
DR MEROPS; A24.001; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0004190; F:aspartic-type endopeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR InterPro; IPR010627; Pept_A24A_N.
DR InterPro; IPR014032; Peptidase_A24A_bac.
DR InterPro; IPR000045; Prepilin_IV_endopep_pep.
DR Pfam; PF06750; DiS_P_DiS; 1.
DR Pfam; PF01478; Peptidase_A24; 1.
DR PRINTS; PR00864; PREPILNPTASE.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Hydrolase; Membrane; Metal-binding;
KW Methyltransferase; Multifunctional enzyme; Protease;
KW S-adenosyl-L-methionine; Transferase; Transmembrane; Transmembrane helix;
KW Zinc.
FT CHAIN 1..288
FT /note="Prepilin leader peptidase/N-methyltransferase"
FT /id="PRO_0000192626"
FT TRANSMEM 14..34
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 103..123
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 127..147
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 158..178
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 182..202
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 227..247
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 254..274
FT /note="Helical"
FT /evidence="ECO:0000255"
FT BINDING 71
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250|UniProtKB:P22610"
FT BINDING 74
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250|UniProtKB:P22610"
FT BINDING 96
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250|UniProtKB:P22610"
FT BINDING 99
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250|UniProtKB:P22610"
SQ SEQUENCE 288 AA; 31972 MW; CB7F63F85317F901 CRC64;
MTLWTFLAME PAYFITLATV LGLLVGSFLN VVVYRLPIML ERQWQREAHE VLGLPVTEHE
RFDLCLPASQ CTQCGHRIRA WENLPVLSYL ALRGRCSACK QRISVRYPLV EVGCALLSMV
VAWRYGASVE ALVLLPLTWS LLALSLIDHD QQLLPDAIVL PGLWLGLIVN YFGVWVPLPD
AVCGAVVGYL SLWTVYWLFK LVTGKEGMGY GDFKLLALLG AWGGWQVLPL TLLLSSVLGA
LVGVYLLRVR NDSMGTAMPF GPYLAIAGWI AVLWGDEIYA SNMQLLGF