Protein detail

MP2K1

Dual specificity mitogen-activated protein kinase kinase 1 (MAP kinase kinase 1) (MAPKK 1) (MKK1) (EC 2.7.12.2) (ERK activator kinase 1) (MAPK/ERK kinase 1) (MEK 1)

Entry name
MP2K1
UniProt ID
EVMP confidence score
0.60
Supporting publications (n)
15
Transmembrane count
Protein classification
Cancer-related genesDisease related genesEnzymesFDA approved drug targetsHuman disease related genesPredicted intracellular proteinsRAS pathway related proteins
EVMP confidence score

Annotation confidence score; open for threshold definitions.

Extremely high >= 0.85High >= 0.70Medium >= 0.55Low >= 0.40
Basic Information11
Protein Names
Dual specificity mitogen-activated protein kinase kinase 1 (MAP kinase kinase 1) (MAPKK 1) (MKK1) (EC 2.7.12.2) (ERK activator kinase 1) (MAPK/ERK kinase 1) (MEK 1)
Protein Class (7)
Cancer-related genesDisease related genesEnzymesFDA approved drug targetsHuman disease related genesPredicted intracellular proteinsRAS pathway related proteins
Protein Function (12)
  • Kinases:STE Ser/Thr protein kinases
  • Predicted intracellular proteins
  • ENZYME proteins:Transferases
  • Cancer-related genes:Mutated cancer genes
  • Human disease related genes:Musculoskeletal diseases:Skeletal diseases
  • RAS pathway related proteins
  • Enzymes
  • Cancer-related genes:Candidate cancer biomarkers
  • Human disease related genes:Cancers:Cancers of haematopoietic and lymphoid tissues
  • Human disease related genes:Congenital malformations:Other congenital malformations
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Entrez Gene Symbol
Gene Synonym (3)
MAPKK1MEK1PRKMK1
Gene Description
Mitogen-activated protein kinase kinase 1
Chromosome
15
Position
66386837-66491656
Supporting publications (n)
15
EVMP confidence score
0.60
Function & Pathway7
Protein Function (12)
  • Kinases:STE Ser/Thr protein kinases
  • Predicted intracellular proteins
  • ENZYME proteins:Transferases
  • Cancer-related genes:Mutated cancer genes
  • Human disease related genes:Musculoskeletal diseases:Skeletal diseases
  • RAS pathway related proteins
  • Enzymes
  • Cancer-related genes:Candidate cancer biomarkers
  • Human disease related genes:Cancers:Cancers of haematopoietic and lymphoid tissues
  • Human disease related genes:Congenital malformations:Other congenital malformations
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Mediation Categories (5)
Adhesion and uptake mediationClinical-translation mediationFusion and delivery mediationImmune mediationReceptor-signaling mediation
Relations & Evidence144

Enzyme-Mediated Modification (83)

83 records.

Substrate Gene SymbolEnzyme Gene SymbolEnzyme UniProt IDResidue TypeResidue OffsetModificationDatabaseReferences
MAP2K1MAP3K8P41279S244phosphorylationSIGNOR_ProtMapperSIGNORProtMapperProtMapper:8131746SIGNOR:8131746
MAP2K1MAP3K8P41279S248phosphorylationSIGNOR_ProtMapperSIGNORProtMapperProtMapper:8131746SIGNOR:8131746
MAP2K1MAP3K8P41279S24phosphorylationPhosphoNetworks
MAP2K1PDPK1O15530S222phosphorylationSIGNORProtMapperRLIMS-P_ProtMapperKEAphosphoELMSIGNOR_ProtMapperREACH_ProtMapperPhosphoSitePhosphoSite_ProtMapperphosphoELM:15175348KEA:8394352SIGNOR:15175348KEA:8157000KEA:94178255KEA:15175348KEA:8621729KEA:8131746ProtMapper:15175348KEA:7731720KEA:15466476KEA:8039496KEA:7624324
MAP2K1ZHX2Q9Y6X8S218phosphorylationdbPTMdbPTM:8131746
MAP2K1ZHX2Q9Y6X8S222phosphorylationdbPTMdbPTM:17192257dbPTM:8131746
MAP2K1MOSP00540S222phosphorylationPhosphoSiteSIGNORSIGNOR:7731726
MAP2K1MOSP00540S218phosphorylationPhosphoSite
MAP2K1BRAFP15056S252phosphorylationSIGNOR_ProtMapperSIGNORProtMapperSIGNOR:8413257ProtMapper:8413257
MAP2K1BRAFP15056S248phosphorylationSIGNOR_ProtMapperSIGNORProtMapperSIGNOR:8413257ProtMapper:8413257
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Ligand-Receptor Signaling (7)

7 records.

CategoryParentDatabaseTransmitterReceiverSecretedPlasma Membrane (Transmembrane)Plasma Membrane (Peripheral)
receptorreceptorOmniPathNoYesNoNoNo
intracellularintracellularLOCATENoNoNoNoNo
intracellularintracellularComPPINoNoNoNoNo
intracellularintracellularGO_IntercellNoNoNoNoNo
intracellularintracellularUniProt_locationNoNoNoNoNo
intracellularintracellularOmniPathNoNoNoNoNo
receptorreceptorscConnectNoYesNoNoNo

Regulatory Interaction Network (31)

31 records.

Source Protein SymbolSource UniProt IDTarget Protein SymbolTarget UniProt IDIs DirectedIs StimulationIs InhibitionDatabaseReferences
M3K2Q9Y2U5MP2K1Q02750YesYesNoSIGNORSignaLink3SignaLink3:23331499SignaLink3:11343802SIGNOR:11343802
PEBP1P30086MP2K1Q02750YesYesNoCancerCellMapNetPathSignaLink3HPRDCancerCellMap:10757792NetPath:10757792SignaLink3:10490027SignaLink3:23331499SignaLink3:10757792HPRD:10757792
WDR83Q9BRX9MP2K1Q02750YesYesNoSIGNORSignaLink3SignaLink3:15118098SignaLink3:23331499SIGNOR:15118098
LTOR3Q9UHA4MP2K1Q02750YesYesNoSIGNORHPRDSignaLink3WangLit-BM-17SignaLink3:9733512SignaLink3:11266467SIGNOR:15547943HPRD:9733512SignaLink3:15547943SignaLink3:23331499Lit-BM-17:11266467Lit-BM-17:9733512
PP2AAP67775MP2K1Q02750YesNoYesWangSIGNORACSNDEPODACSN:10995457ACSN:18039929ACSN:18042541DEPOD:1716348ACSN:18588945ACSN:16680151SIGNOR:20626350
PDPK1O15530MP2K1Q02750YesYesNoiPTMnetSIGNORProtMapperRLIMS-P_ProtMapperPhosphoSite_KEAKEAphosphoELMSIGNOR_ProtMapperREACH_ProtMapperPhosphoSite_ProtMapperphosphoELM:15175348KEA:8394352SIGNOR:15175348KEA:8157000KEA:94178255KEA:15175348KEA:8621729KEA:8131746ProtMapper:15175348KEA:7731720KEA:15466476KEA:8039496KEA:7624324
MOSP00540MP2K1Q02750YesYesNoWangiPTMnetSIGNORProtMapperCui2007SIGNOR_ProtMapperREACH_ProtMapperProtMapper:7731726ProtMapper:10561505SIGNOR:7731726
MP2K1Q02750IRS1P35568YesNoYesSIGNOR_ProtMapperiPTMnetSIGNORProtMapperSIGNOR:11160134ProtMapper:11160134
MP2K1Q02750MYT1Q01538YesNoYesSIGNORSIGNOR:23241949
MP2K1Q02750HSF1Q00613YesYesNoSparser_ProtMapperiPTMnetSIGNORProtMapperREACH_ProtMapperPhosphoSite_ProtMapperSIGNOR:35080342ProtMapper:25679764
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Protein Complex Composition (22)

22 records.

Component NameComponent Gene SymbolsComponent UniProt IDStoichiometryDatabaseDatabase IDsReferences
B-Ksr1-MEK-MAPK-14-3-3 complexKSR1KSR2MAP2K1MAP2K2MAPK1YWHABYWHAEYWHAGYWHAHYWHAQYWHAZP27348P28482P31946P36507P61981P62258P63104Q02750Q04917Q6VAB6Q8IVT51:1:1:1:1:1:1:1:1:1:1CompleatCompleat:HC244610891492
Ksr1 complex (Ksr1Mek14-3-3)unstimulatedKSR1KSR2MAP2K1MAP2K2SFNYWHABYWHAEYWHAGYWHAHYWHAQYWHAZP27348P31946P31947P36507P61981P62258P63104Q02750Q04917Q6VAB6Q8IVT51:1:1:1:1:1:1:1:1:1:1CompleatCompleat:HC164911741534
Ksr1 complex (Ksr1Mek14-3-3Mapk)EGF stimulatedKSR1KSR2MAP2K1MAP2K2MAPK1SFNYWHABYWHAEYWHAGYWHAHYWHAQYWHAZP27348P28482P31946P31947P36507P61981P62258P63104Q02750Q04917Q6VAB6Q8IVT51:1:1:1:1:1:1:1:1:1:1:1CompleatCompleat:HC33711741534
Ksr1-CK2-MEK-14-3-3 complexPDGF treatedCSNK2A1CSNK2A2CSNK2BKSR1KSR2LY6G5BMAP2K1MAP2K2YWHABYWHAEYWHAGYWHAHYWHAQYWHAZP19784P27348P31946P36507P61981P62258P63104P67870P68400Q02750Q04917Q6VAB6Q8IVT5Q8NDX91:1:1:1:1:1:1:1:1:1:1:1:1:1CompleatCompleat:HC43717174095
STE5-MAPK complexMAP2K1MAP2K2MAP3K15MAP3K19MAP3K3MAP3K5MAPK1MAPK3MAPK4MAPK6MAPK7NLKP27361P28482P31152P36507Q02750Q13164Q16659Q56UN5Q6ZN16Q99683Q99759Q9UBE81:1:1:1:1:1:1:1:1:1:1:1CompleatCompleat:HC30198062390
p14-Mp1-MEK1 complexLAMTOR2LAMTOR3MAP2K1Q02750Q9UHA4Q9Y2Q51:1:1CompleatCORUMCompleat:HC3010CORUM:522211266467
MAP2K1MAP2K3MAP2K4MAP2K6MAP3K4MAP3K5MAPK12MAPK13MAPK14MAPK3MAPKAPK5TAOK2O15264P27361P45985P46734P52564P53778Q02750Q16539Q8IW41Q99683Q9UL54Q9Y6R41:1:1:1:1:1:1:1:1:1:1:1NetworkBlastCompleatCompleat:HC5196
DUSP3MAP2K1MAP2K2MAPK1MAPK14MAPK3MAPK4MAPKAPK5PTPN7RPS6KA4USP1O75676O94782P27361P28482P31152P35236P36507P51452Q02750Q16539Q8IW411:1:1:1:1:1:1:1:1:1:1NetworkBlastCompleatCompleat:HC4979
DUSP1DUSP2DUSP4DUSP6DUSP7DUSP9MAP2K1MAPK1MAPK14MAPK3MAPK8PTPN7RPS6KA4UBCO75676P0CG48P27361P28482P28562P35236P45983Q02750Q05923Q13115Q16539Q16828Q16829Q999561:1:1:1:1:1:1:1:1:1:1:1:1:1NetworkBlastCompleatCompleat:HC9729
DUSP2DUSP3DUSP4DUSP6DUSP9MAP2K1MAP2K2MAPK1MAPK14MAPK3MAPKAPK2PTPN7RPS6KA4UBCO75676P0CG48P27361P28482P35236P36507P49137P51452Q02750Q05923Q13115Q16539Q16828Q999561:1:1:1:1:1:1:1:1:1:1:1:1:1NetworkBlastCompleatCompleat:HC8400
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Isolation & Detection Technology (1)

1 record.

EV Isolation MethodDetection MethodNumber of ReferencesReferences
Differential UltracentrifugationSize Exclusion ChromatographyMass spectrometry127605433
Sequence, Structure & Domains14

Sequences

Length
393
Mass
43,439
Sequence
MPKKKPTPIQLNPAPDGSAVNGTSSAETNLEALQKKLEELELDEQQRKRLEAFLTQKQKVGELKDDDFEKISELGAGNGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMANSFVGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGCQVEGDAAETPPRPRTPGRPLSSYGMDSRPPMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCSTIGLNQPSTPTHAAGV
Alternative Products
Event=Alternative splicing; Named isoforms=2; Name=1; Synonyms=MKK1a; IsoId=Q02750-1; Sequence=Displayed; Name=2; Synonyms=MKK1b; IsoId=Q02750-2; Sequence=VSP_040500
Alternative Sequence
147..172; Missing (in isoform 2)

3D Structural Models

Turn
58..60; 88..91; 200..202; 327..329; 346..348
Helix
38..40; 44..57; 65..67; 105..115; 116..120; 151..158; 163..184; 193..195; 213..218; 221..223; 227..229; 232..236; 242..258; 268..275; 310..319; 332..341; 352..356; 359..366; 371..379
Beta Strand
68..76; 78..87; 92..100; 129..135; 138..144; 196..198; 204..206
3D Structure
Electron microscopy (14); X-ray crystallography (70)

Domain & Motif Annotations

Domain (CC)
The proline-rich region localized between residues 270 and 307 is important for binding to RAF1 and activation of MAP2K1/MEK1..
Domain (FT)
68..361; Protein kinase
Region
1..27; Disordered; 270..307; RAF1-binding
Protein Families (3)
  • Protein kinase superfamily
  • STE Ser/Thr protein kinase family
  • MAP kinase kinase subfamily
Sequence Similarities
Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. MAP kinase kinase subfamily.
Clinical Relevance7
Disease Involvement (6)
Cancer-related genesCardiomyopathyDisease variantEctodermal dysplasiaFDA approved drug targetsIntellectual disability
Drug Targets
FDA approved drug targets
Interaction Protein (14)
ENSG00000078061ENSG00000100030ENSG00000102882ENSG00000108953ENSG00000126934ENSG00000128245ENSG00000132155ENSG00000134308ENSG00000137693ENSG00000141068ENSG00000157764ENSG00000164924ENSG00000166913ENSG00000170027
Interaction Count
14
Interaction Dataset (3)
biogrid_opencellintact_biogridintact_biogrid_opencell
Supporting Publications15
PMIDTitleAbstract
22106071Proteomic analysis of urine exosomes by multidimensional protein identification technology (MudPIT).No abstract available
25471207Intraluminal proteome and peptidome of human urinary extracellular vesicles.No abstract available
26884841Exosomes mediated pentose phosphate pathway in ovarian cancer metastasis: a proteomics analysis.No abstract available
30071318Changes in the urinary extracellular vesicle proteome are associated with nephronophthisis-related ciliopathies.No abstract available
30608700Quantitative Proteomic Analysis of Small and Large Extracellular Vesicles (EVs) Reveals Enrichment of Adhesion Proteins in Small EVs.No abstract available
30760538Microvesicle Proteomic Profiling of Uterine Liquid Biopsy for Ovarian Cancer Early Detection.No abstract available
31508500Proteomic profiling of extracellular vesicles allows for human breast cancer subtyping.No abstract available
32795414Extracellular Vesicle and Particle Biomarkers Define Multiple Human Cancers.Among traditional exosome markers, CD9, HSPA8, ALIX, and HSP90AB1 represent pan-EVP markers, while ACTB, MSN, and RAP1B are novel pan-EVP markers.
37686366Identification of a Non-Invasive Urinary Exosomal Biomarker for Diabetic Nephropathy Using Data-Independent Acquisition Proteomics.No abstract available
37922300Proteomic profiling of urinary extracellular vesicles differentiates breast cancer patients from healthy women.No abstract available
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