ID Q9A4Z4_CAUVC Unreviewed; 276 AA.
AC Q9A4Z4;
DT 01-JUN-2001, integrated into UniProtKB/TrEMBL.
DT 01-JUN-2001, sequence version 1.
DT 27-MAR-2024, entry version 133.
DE RecName: Full=Methionine aminopeptidase {ECO:0000256|HAMAP-Rule:MF_01974, ECO:0000256|RuleBase:RU003653};
DE Short=MAP {ECO:0000256|HAMAP-Rule:MF_01974};
DE Short=MetAP {ECO:0000256|HAMAP-Rule:MF_01974};
DE EC=3.4.11.18 {ECO:0000256|HAMAP-Rule:MF_01974, ECO:0000256|RuleBase:RU003653};
DE AltName: Full=Peptidase M {ECO:0000256|HAMAP-Rule:MF_01974};
GN Name=map {ECO:0000256|HAMAP-Rule:MF_01974};
GN OrderedLocusNames=CC_2677 {ECO:0000313|EMBL:AAK24644.1};
OS Caulobacter vibrioides (strain ATCC 19089 / CB15) (Caulobacter crescentus).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Caulobacter.
OX NCBI_TaxID=190650 {ECO:0000313|EMBL:AAK24644.1, ECO:0000313|Proteomes:UP000001816};
RN [1] {ECO:0000313|EMBL:AAK24644.1, ECO:0000313|Proteomes:UP000001816}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 19089 / CB15 {ECO:0000313|Proteomes:UP000001816};
RX PubMed=11259647; DOI=10.1073/pnas.061029298;
RA Nierman W.C., Feldblyum T.V., Laub M.T., Paulsen I.T., Nelson K.E.,
RA Eisen J.A., Heidelberg J.F., Alley M.R., Ohta N., Maddock J.R., Potocka I.,
RA Nelson W.C., Newton A., Stephens C., Phadke N.D., Ely B., DeBoy R.T.,
RA Dodson R.J., Durkin A.S., Gwinn M.L., Haft D.H., Kolonay J.F., Smit J.,
RA Craven M.B., Khouri H., Shetty J., Berry K., Utterback T., Tran K.,
RA Wolf A., Vamathevan J., Ermolaeva M., White O., Salzberg S.L., Venter J.C.,
RA Shapiro L., Fraser C.M.;
RT "Complete genome sequence of Caulobacter crescentus.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:4136-4141(2001).
CC -!- FUNCTION: Removes the N-terminal methionine from nascent proteins. The
CC N-terminal methionine is often cleaved when the second residue in the
CC primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser,
CC Thr, or Val). Requires deformylation of the N(alpha)-formylated
CC initiator methionine before it can be hydrolyzed.
CC {ECO:0000256|ARBA:ARBA00002521, ECO:0000256|HAMAP-Rule:MF_01974}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Release of N-terminal amino acids, preferentially methionine,
CC from peptides and arylamides.; EC=3.4.11.18;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01974,
CC ECO:0000256|RuleBase:RU003653};
CC -!- COFACTOR:
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01974};
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01974};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01974};
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01974};
CC Note=Binds 2 divalent metal cations per subunit. Has a high-affinity
CC and a low affinity metal-binding site. The true nature of the
CC physiological cofactor is under debate. The enzyme is active with
CC cobalt, zinc, manganese or divalent iron ions. Most likely, methionine
CC aminopeptidases function as mononuclear Fe(2+)-metalloproteases under
CC physiological conditions, and the catalytically relevant metal-binding
CC site has been assigned to the histidine-containing high-affinity site.
CC {ECO:0000256|HAMAP-Rule:MF_01974};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01974}.
CC -!- SIMILARITY: Belongs to the peptidase M24A family. Methionine
CC aminopeptidase type 1 subfamily. {ECO:0000256|HAMAP-Rule:MF_01974}.
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DR EMBL; AE005673; AAK24644.1; -; Genomic_DNA.
DR PIR; H87580; H87580.
DR RefSeq; NP_421476.1; NC_002696.2.
DR RefSeq; WP_010920527.1; NC_002696.2.
DR AlphaFoldDB; Q9A4Z4; -.
DR SMR; Q9A4Z4; -.
DR STRING; 190650.CC_2677; -.
DR MEROPS; M24.001; -.
DR EnsemblBacteria; AAK24644; AAK24644; CC_2677.
DR KEGG; ccr:CC_2677; -.
DR PATRIC; fig|190650.5.peg.2688; -.
DR eggNOG; COG0024; Bacteria.
DR HOGENOM; CLU_015857_0_0_5; -.
DR BioCyc; CAULO:CC2677-MONOMER; -.
DR Proteomes; UP000001816; Chromosome.
DR GO; GO:0004239; F:initiator methionyl aminopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0070006; F:metalloaminopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046914; F:transition metal ion binding; IEA:UniProt.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR CDD; cd01086; MetAP1; 1.
DR Gene3D; 3.90.230.10; Creatinase/methionine aminopeptidase superfamily; 1.
DR HAMAP; MF_01974; MetAP_1; 1.
DR InterPro; IPR036005; Creatinase/aminopeptidase-like.
DR InterPro; IPR000994; Pept_M24.
DR InterPro; IPR001714; Pept_M24_MAP.
DR InterPro; IPR002467; Pept_M24A_MAP1.
DR NCBIfam; TIGR00500; met_pdase_I; 1.
DR PANTHER; PTHR43330; METHIONINE AMINOPEPTIDASE; 1.
DR PANTHER; PTHR43330:SF8; METHIONINE AMINOPEPTIDASE 1D, MITOCHONDRIAL; 1.
DR Pfam; PF00557; Peptidase_M24; 1.
DR PRINTS; PR00599; MAPEPTIDASE.
DR SUPFAM; SSF55920; Creatinase/aminopeptidase; 1.
DR PROSITE; PS00680; MAP_1; 1.
PE 3: Inferred from homology;
KW Aminopeptidase {ECO:0000256|HAMAP-Rule:MF_01974,
KW ECO:0000256|RuleBase:RU003653};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01974};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01974,
KW ECO:0000256|RuleBase:RU003653};
KW Protease {ECO:0000256|HAMAP-Rule:MF_01974, ECO:0000256|RuleBase:RU003653};
KW Reference proteome {ECO:0000313|Proteomes:UP000001816}.
FT DOMAIN 27..255
FT /note="Peptidase M24"
FT /evidence="ECO:0000259|Pfam:PF00557"
FT BINDING 93
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 110
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 121
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 121
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 184
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 191
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 217
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 248
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
FT BINDING 248
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01974"
SQ SEQUENCE 276 AA; 29910 MW; CADB7924E2EECEBA CRC64;
MTLDNALEIE AETRTGQIKL HKAEDFEGMR KAGKLAAECL DMLIPHVQPG VSSDELDRLA
REFILDNGGL PACLYYRGYP KTVCISRNHV VCHGIPGDWA LKEGDIVNID VTAIVDGWHG
DTSRMYGVGE VGPRARRLVE ITYEGMRRGL EAVKPGATLG DIGHAIQSYV EAQRCSVVRD
FCGHGLGRVF HDAPNILHFG RPGQGAVLKP GMFFTVEPMV NLGKPAVKVL NDGWTAVTRD
KSLSAQCEHS IGVTEDGYEV FTASPAGLFQ PAIQGG
//
