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Protein

Methionine aminopeptidase

Gene

map

Organism
Mycoplasma pneumoniae (strain ATCC 29342 / M129)
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)DescriptionActionsGraphical viewLength
Binding sitei77SubstrateUniRule annotation1
Metal bindingi94Divalent metal cation 1UniRule annotation1
Metal bindingi105Divalent metal cation 1UniRule annotation1
Metal bindingi105Divalent metal cation 2; catalyticUniRule annotation1
Metal bindingi169Divalent metal cation 2; catalytic; via tele nitrogenUniRule annotation1
Binding sitei176SubstrateUniRule annotation1
Metal bindingi202Divalent metal cation 2; catalyticUniRule annotation1
Metal bindingi233Divalent metal cation 1UniRule annotation1
Metal bindingi233Divalent metal cation 2; catalyticUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Aminopeptidase, Hydrolase, Protease

Keywords - Ligandi

Metal-binding

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:MPN_186
ORF Names:MP645
OrganismiMycoplasma pneumoniae (strain ATCC 29342 / M129)
Taxonomic identifieri272634 [NCBI]
Taxonomic lineageiBacteriaTenericutesMollicutesMycoplasmataceaeMycoplasma
Proteomesi
  • UP000000808 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001489471 – 248Methionine aminopeptidaseAdd BLAST248

Interactioni

Subunit structurei

Monomer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ11132.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

OMAiPNSGPKI.

Family and domain databases

CDDicd01086. MetAP1. 1 hit.
Gene3Di3.90.230.10. 1 hit.
HAMAPiMF_01974. MetAP_1. 1 hit.
InterProiIPR000994. Pept_M24.
IPR001714. Pept_M24_MAP.
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.

Q11132-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVYLKSAREV EQIRQACKIF QEAKAYFTIE RLLGKSLTAI DQALKQFIES
60 70 80 90 100
KGATCAFHKY QNFPGFNCLS LNETVIHGIA DNRVFGVKDK LTLDIGINLN
110 120 130 140 150
GYICDAAFTV LGPKAPEPMQ TLLEVTEACF TAVVEPQLRP NNPTGNVSHA
160 170 180 190 200
IQTYFESKGY YLLKQFGGHG CGIKVHEEPL ILNYGKPDTG TKLEPGMVLC
210 220 230 240
IEPMVMTDSD AMVMHNNSWN VLTPKSRYNC HVEQMYVITT SGFECLTN
Length:248
Mass (Da):27,657
Last modified:October 1, 1996 - v1
Checksum:iD3F4B5F3F6048BF5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U34795 Genomic DNA. Translation: AAC43695.1.
U00089 Genomic DNA. Translation: AAB96293.1.
PIRiS62822.
RefSeqiNP_109874.1. NC_000912.1.
WP_010874543.1. NC_000912.1.

Genome annotation databases

EnsemblBacteriaiAAB96293; AAB96293; MPN_186.
GeneIDi876883.
KEGGimpn:MPN186.
PATRICi20021695. VBIMycPne110_0204.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U34795 Genomic DNA. Translation: AAC43695.1.
U00089 Genomic DNA. Translation: AAB96293.1.
PIRiS62822.
RefSeqiNP_109874.1. NC_000912.1.
WP_010874543.1. NC_000912.1.

3D structure databases

ProteinModelPortaliQ11132.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAB96293; AAB96293; MPN_186.
GeneIDi876883.
KEGGimpn:MPN186.
PATRICi20021695. VBIMycPne110_0204.

Phylogenomic databases

OMAiPNSGPKI.

Family and domain databases

CDDicd01086. MetAP1. 1 hit.
Gene3Di3.90.230.10. 1 hit.
HAMAPiMF_01974. MetAP_1. 1 hit.
InterProiIPR000994. Pept_M24.
IPR001714. Pept_M24_MAP.
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...

Entry informationi

Entry nameiMAP1_MYCPN
AccessioniPrimary (citable) accession number: Q11132
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: October 1, 1996
Last modified: November 30, 2016
This is version 109 of the entry and version 1 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. Mycoplasma pneumoniae
    Mycoplasma pneumoniae (strain M129): entries and gene names
  2. Peptidase families
    Classification of peptidase families and list of entries
  3. SIMILARITY comments
    Index of protein domains and families

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 one 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.