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UniProtKB - B9ST99 (B9ST99_RICCO)
Protein
Methionine aminopeptidase 2
Gene
RCOM_0364790
Organism
Ricinus communis (Castor bean)
Status
Functioni
Cotranslationally 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).
UniRule annotationCatalytic activityi
- Release of N-terminal amino acids, preferentially methionine, from peptides and arylamides.UniRule annotationARBA annotation EC:3.4.11.18
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 key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 185 | SubstrateUniRule annotation | 1 | |
Metal bindingi | 205 | Divalent metal cation 1UniRule annotation | 1 | |
Metal bindingi | 216 | Divalent metal cation 1UniRule annotation | 1 | |
Metal bindingi | 216 | Divalent metal cation 2; catalyticUniRule annotation | 1 | |
Metal bindingi | 285 | Divalent metal cation 2; catalytic; via tele nitrogenUniRule annotation | 1 | |
Binding sitei | 293 | SubstrateUniRule annotation | 1 | |
Metal bindingi | 318 | Divalent metal cation 2; catalyticUniRule annotation | 1 | |
Metal bindingi | 413 | Divalent metal cation 1UniRule annotation | 1 | |
Metal bindingi | 413 | Divalent metal cation 2; catalyticUniRule annotation | 1 |
GO - Molecular functioni
- metal ion binding Source: UniProtKB-UniRule
- metalloaminopeptidase activity Source: UniProtKB-UniRule
- methyltransferase activity Source: UniProt
GO - Biological processi
- protein initiator methionine removal Source: UniProtKB-UniRule
Keywordsi
Molecular function | AminopeptidaseUniRule annotationARBA annotation, Hydrolase, Protease |
Ligand | Metal-bindingUniRule annotation |
Protein family/group databases
MEROPSi | M24.A02 |
Names & Taxonomyi
Protein namesi | Recommended name: Methionine aminopeptidase 2UniRule annotation (EC:3.4.11.18UniRule annotation)Short name: MAP 2UniRule annotation Short name: MetAP 2UniRule annotation Alternative name(s): Peptidase MUniRule annotation |
Gene namesi | ORF Names:RCOM_0364790Imported |
Organismi | Ricinus communis (Castor bean)Imported |
Taxonomic identifieri | 3988 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › fabids › Malpighiales › Euphorbiaceae › Acalyphoideae › Acalypheae › Ricinus |
Proteomesi |
|
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm UniRule annotation
Other locations
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmUniRule annotationStructurei
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 122 – 419 | Peptidase_M24InterPro annotationAdd BLAST | 298 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 82 | DisorderedSequence analysisAdd BLAST | 82 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 38 – 54 | Basic and acidic residuesSequence analysisAdd BLAST | 17 |
Sequence similaritiesi
Belongs to the peptidase M24A family. Methionine aminopeptidase eukaryotic type 2 subfamily.UniRule annotation
Phylogenomic databases
eggNOGi | KOG2775, Eukaryota |
InParanoidi | B9ST99 |
OrthoDBi | 601484at2759 |
Family and domain databases
CDDi | cd01088, MetAP2, 1 hit |
Gene3Di | 1.10.10.10, 1 hit 3.90.230.10, 1 hit |
HAMAPi | MF_03175, MetAP_2_euk, 1 hit |
InterProi | View protein in InterPro IPR036005, Creatinase/aminopeptidase-like IPR000994, Pept_M24 IPR001714, Pept_M24_MAP IPR002468, Pept_M24A_MAP2 IPR018349, Pept_M24A_MAP2_BS IPR036388, WH-like_DNA-bd_sf IPR036390, WH_DNA-bd_sf |
Pfami | View protein in Pfam PF00557, Peptidase_M24, 1 hit |
PRINTSi | PR00599, MAPEPTIDASE |
SUPFAMi | SSF46785, SSF46785, 1 hit SSF55920, SSF55920, 1 hit |
TIGRFAMsi | TIGR00501, met_pdase_II, 1 hit |
PROSITEi | View protein in PROSITE PS01202, MAP_2, 1 hit |
i Sequence
Sequence statusi: Complete.
B9ST99-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MADEKVDKQV PIEENGAEAE NGAPAPSVSN ENDESSDLST AMPKDEDEGK
60 70 80 90 100
EVSKKKKKKN KSKKKKELPQ QTDPPSVPVI ELFPSGEFPE GEIQQYKDDN
110 120 130 140 150
LWRTTSEEKR ELERLEKPIY NSVRQAAEVH RQVRKYIKSI LKPGMLMTDL
160 170 180 190 200
CETLENTVRK LISENGLQAG IAFPTGCSLN WVAAHWTPNS GDKTMLQYDD
210 220 230 240 250
VMKLDFGTHI DGYIVDCAFT VAFNPMFDPL LEASREATNT GIKEAGIDVR
260 270 280 290 300
LCDVGAAIQE VMESYEVEIN GKVFQVKSIR NLNGHSIGRY QIHAGKSVPI
310 320 330 340 350
VKGGEQTKME EGEFFAIETF ASTGKGYVRE DLECSHYMKN FDVGHIPLRV
360 370 380 390 400
PRAKQLLATI NKNFSTLAFC RRYLDRLGET KYLMALKNLC DTGIIQPYPP
410 420 430
LCDIKGSYVS QFEHTILLRP TCKEVISRGD DY
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EQ974124 Genomic DNA Translation: EEF33174.1 |
RefSeqi | XP_002529218.1, XM_002529172.2 XP_015580906.1, XM_015725420.1 |
Genome annotation databases
GeneIDi | 8260468 |
KEGGi | rcu:8260468 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EQ974124 Genomic DNA Translation: EEF33174.1 |
RefSeqi | XP_002529218.1, XM_002529172.2 XP_015580906.1, XM_015725420.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
STRINGi | 3988.XP_002529218.1 |
Protein family/group databases
MEROPSi | M24.A02 |
Genome annotation databases
GeneIDi | 8260468 |
KEGGi | rcu:8260468 |
Phylogenomic databases
eggNOGi | KOG2775, Eukaryota |
InParanoidi | B9ST99 |
OrthoDBi | 601484at2759 |
Family and domain databases
CDDi | cd01088, MetAP2, 1 hit |
Gene3Di | 1.10.10.10, 1 hit 3.90.230.10, 1 hit |
HAMAPi | MF_03175, MetAP_2_euk, 1 hit |
InterProi | View protein in InterPro IPR036005, Creatinase/aminopeptidase-like IPR000994, Pept_M24 IPR001714, Pept_M24_MAP IPR002468, Pept_M24A_MAP2 IPR018349, Pept_M24A_MAP2_BS IPR036388, WH-like_DNA-bd_sf IPR036390, WH_DNA-bd_sf |
Pfami | View protein in Pfam PF00557, Peptidase_M24, 1 hit |
PRINTSi | PR00599, MAPEPTIDASE |
SUPFAMi | SSF46785, SSF46785, 1 hit SSF55920, SSF55920, 1 hit |
TIGRFAMsi | TIGR00501, met_pdase_II, 1 hit |
PROSITEi | View protein in PROSITE PS01202, MAP_2, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | B9ST99_RICCO | |
Accessioni | B9ST99Primary (citable) accession number: B9ST99 | |
Entry historyi | Integrated into UniProtKB/TrEMBL: | March 24, 2009 |
Last sequence update: | March 24, 2009 | |
Last modified: | January 19, 2022 | |
This is version 80 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Unreviewed (UniProtKB/TrEMBL) |