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Protein

Methionine aminopeptidase

Gene

map

Organism
Clostridium perfringens (strain 13 / Type A)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). Requires deformylation of the N(alpha)-formylated initiator methionine before it can be hydrolyzed.UniRule annotation

Catalytic activityi

Release of N-terminal amino acids, preferentially methionine, from peptides and arylamides.UniRule annotation

Cofactori

Co2+UniRule annotation, Zn2+UniRule annotation, Mn2+UniRule annotation, Fe2+UniRule annotationNote: Binds 2 divalent metal cations per subunit. Has a high-affinity and a low affinity metal-binding site. The true nature of the physiological cofactor is under debate. The enzyme is active with cobalt, zinc, manganese or divalent iron ions. Most likely, methionine aminopeptidases function as mononuclear Fe2+-metalloproteases under physiological conditions, and the catalytically relevant metal-binding site has been assigned to the histidine-containing high-affinity site.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei77 – 771SubstrateUniRule annotation
Metal bindingi94 – 941Divalent metal cation 1UniRule annotation
Metal bindingi105 – 1051Divalent metal cation 1UniRule annotation
Metal bindingi105 – 1051Divalent metal cation 2; catalyticUniRule annotation
Metal bindingi168 – 1681Divalent metal cation 2; catalytic; via tele nitrogenUniRule annotation
Binding sitei175 – 1751SubstrateUniRule annotation
Metal bindingi201 – 2011Divalent metal cation 2; catalyticUniRule annotation
Metal bindingi232 – 2321Divalent metal cation 1UniRule annotation
Metal bindingi232 – 2321Divalent metal cation 2; catalyticUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Aminopeptidase, Hydrolase, Protease

Keywords - Ligandi

Metal-binding

Enzyme and pathway databases

BioCyciCPER195102:GJFM-2485-MONOMER.

Protein family/group databases

MEROPSiM24.001.

Names & Taxonomyi

Protein namesi
Recommended name:
Methionine aminopeptidaseUniRule annotation (EC:3.4.11.18UniRule annotation)
Short name:
MAPUniRule annotation
Short name:
MetAPUniRule annotation
Alternative name(s):
Peptidase MUniRule annotation
Gene namesi
Name:mapUniRule annotation
Ordered Locus Names:CPE2383
OrganismiClostridium perfringens (strain 13 / Type A)
Taxonomic identifieri195102 [NCBI]
Taxonomic lineageiBacteriaFirmicutesClostridiaClostridialesClostridiaceaeClostridium
ProteomesiUP000000818 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 249249Methionine aminopeptidasePRO_0000148936Add
BLAST

Interactioni

Subunit structurei

Monomer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliP50614.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase M24A family. Methionine aminopeptidase type 1 subfamily.UniRule annotation

Phylogenomic databases

eggNOGiCOG0024.
HOGENOMiHOG000030426.
KOiK01265.
OMAiMQVNDLV.
OrthoDBiEOG6MWNDS.

Family and domain databases

Gene3Di3.90.230.10. 1 hit.
HAMAPiMF_01974. MetAP_1.
InterProiIPR001714. Pept_M24_MAP.
IPR000994. Pept_M24_structural-domain.
IPR002467. Pept_M24A_MAP1.
[Graphical view]
PfamiPF00557. Peptidase_M24. 1 hit.
[Graphical view]
PRINTSiPR00599. MAPEPTIDASE.
SUPFAMiSSF55920. SSF55920. 1 hit.
TIGRFAMsiTIGR00500. met_pdase_I. 1 hit.
PROSITEiPS00680. MAP_1. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P50614-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MIILKNENEI DLMRKAGKIL GETLNLLKEK VRPGITTTEL DRIAEEFITK
60 70 80 90 100
HGATPSFKGL YGFPASLCIS VNNQVIHGFP GSYELKDGDI VSIDCGVCLN
110 120 130 140 150
GFHSDAARTF GVGNISEEAE KLIRITEESF FKGIEKAYVD NRLTDISNEI
160 170 180 190 200
QQYVEANGFS VVRDFVGHGI GRKVHEDPEV PNFGRPGRGP KLMAGMVLAI
210 220 230 240
EPMVNMGSYR VKTLDDGWTV VTADGKLSAH YENTVAILPN GPEILTLIK
Length:249
Mass (Da):27,323
Last modified:January 31, 2002 - v2
Checksum:i7FDC5CD82CEAFAC7
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti30 – 301K → Q in CAA60211 (PubMed:7559358).Curated
Sequence conflicti104 – 1041S → R in CAA60211 (PubMed:7559358).Curated
Sequence conflicti148 – 1481N → K in CAA60211 (PubMed:7559358).Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000016 Genomic DNA. Translation: BAB82089.1.
X86486 Genomic DNA. Translation: CAA60211.1.
RefSeqiWP_003454388.1. NC_003366.1.

Genome annotation databases

EnsemblBacteriaiBAB82089; BAB82089; BAB82089.
GeneIDi990744.
KEGGicpe:CPE2383.
PATRICi19498821. VBICloPer59675_2453.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000016 Genomic DNA. Translation: BAB82089.1.
X86486 Genomic DNA. Translation: CAA60211.1.
RefSeqiWP_003454388.1. NC_003366.1.

3D structure databases

ProteinModelPortaliP50614.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

MEROPSiM24.001.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAB82089; BAB82089; BAB82089.
GeneIDi990744.
KEGGicpe:CPE2383.
PATRICi19498821. VBICloPer59675_2453.

Phylogenomic databases

eggNOGiCOG0024.
HOGENOMiHOG000030426.
KOiK01265.
OMAiMQVNDLV.
OrthoDBiEOG6MWNDS.

Enzyme and pathway databases

BioCyciCPER195102:GJFM-2485-MONOMER.

Family and domain databases

Gene3Di3.90.230.10. 1 hit.
HAMAPiMF_01974. MetAP_1.
InterProiIPR001714. Pept_M24_MAP.
IPR000994. Pept_M24_structural-domain.
IPR002467. Pept_M24A_MAP1.
[Graphical view]
PfamiPF00557. Peptidase_M24. 1 hit.
[Graphical view]
PRINTSiPR00599. MAPEPTIDASE.
SUPFAMiSSF55920. SSF55920. 1 hit.
TIGRFAMsiTIGR00500. met_pdase_I. 1 hit.
PROSITEiPS00680. MAP_1. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 13 / Type A.
  2. "Rapid expansion of the physical and genetic map of the chromosome of Clostridium perfringens CPN50."
    Katayama S., Dupuy B., Garnier T., Cole S.T.
    J. Bacteriol. 177:5680-5685(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 6-148.
    Strain: CPN50.

Entry informationi

Entry nameiMAP1_CLOPE
AccessioniPrimary (citable) accession number: P50614
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: January 31, 2002
Last modified: July 22, 2015
This is version 110 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.