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(-) Description

Title :  CRYSTAL STRUCTURE OF MEK1 IN COMPLEX WITH FRAGMENT 3
 
Authors :  K. Amaning, M. Lowinsky, F. Vallee, V. Steier, C. Marcireau, A. Ugolini C. Delorme, G. Mccort, C. Andouche, S. Vougier, S. Llopart, N. Halland
Date :  04 Feb 13  (Deposition) - 22 May 13  (Release) - 29 May 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.12
Chains :  Asym./Biol. Unit :  A
Keywords :  Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. Amaning, M. Lowinski, F. Vallee, V. Steier, C. Marcireau, A. Ugolini, C. Delorme, F. Foucalt, G. Mccort, N. Derimay, C. Andouche S. Vougier, S. Llopart, N. Halland, A. Rak
The Use Of Virtual Screening And Differential Scanning Fluorimetry For The Rapid Identification Of Fragments Active Against Mek1.
Bioorg. Med. Chem. Lett. V. 23 3620 2013
PubMed-ID: 23648182  |  Reference-DOI: 10.1016/J.BMCL.2013.04.003

(-) Compounds

Molecule 1 - DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE KINASE 1 MAPK/ERK KINASE 1, MEK 1, MEK1
    ChainsA
    EC Number2.7.12.2
    Expression SystemSPODOPTERA FRUGIPERDA
    Expression System Cell LineSF21
    Expression System CommonFALL ARMYWORM
    Expression System Taxid7108
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1MT81Ligand/Ion(1R)-1-HYDROXY-1-METHYL-2,3,6,7-TETRAHYDRO-1H,5H-PYRIDO[3,2,1-IJ]QUINOLIN-5-ONE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU A:74 , VAL A:82 , ALA A:95 , MET A:143 , MET A:146 , GLY A:149 , GLN A:153 , LEU A:197 , CYS A:207 , ASP A:208BINDING SITE FOR RESIDUE MT8 A1383

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3ZLW)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Ile A:263 -Pro A:264

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_035093F53SMP2K1_HUMANDisease (CFC3)121908594AF53S
2UniProtVAR_069780G128VMP2K1_HUMANDisease (CFC3)730880508AG128V
3UniProtVAR_035094Y130CMP2K1_HUMANDisease (CFC3)121908595AY130C

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PROTEIN_KINASE_ATPPS00107 Protein kinases ATP-binding region signature.MP2K1_HUMAN74-97  1A:74-97
2PROTEIN_KINASE_STPS00108 Serine/Threonine protein kinases active-site signature.MP2K1_HUMAN186-198  1A:186-198

(-) Exons   (10, 10)

Asymmetric/Biological Unit (10, 10)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000003071021ENSE00001257104chr15:66679155-66679765611MP2K1_HUMAN1-27270--
1.2aENST000003071022aENSE00001199409chr15:66727365-66727575211MP2K1_HUMAN27-97711A:39-9759
1.3ENST000003071023ENSE00001675310chr15:66729084-66729230147MP2K1_HUMAN98-146491A:98-14649
1.4ENST000003071024ENSE00001134060chr15:66735618-6673569578MP2K1_HUMAN147-172261A:147-17226
1.5ENST000003071025ENSE00001134055chr15:66736994-6673704552MP2K1_HUMAN173-190181A:173-19018
1.6ENST000003071026ENSE00001199390chr15:66774093-66774217125MP2K1_HUMAN190-231421A:190-231 (gaps)42
1.7bENST000003071027bENSE00001257056chr15:66777328-66777529202MP2K1_HUMAN232-299681A:232-27746
1.8ENST000003071028ENSE00001199379chr15:66779566-6677963065MP2K1_HUMAN299-320221A:307-32014
1.9ENST000003071029ENSE00001199374chr15:66781553-6678161462MP2K1_HUMAN321-341211A:321-34121
1.10ENST0000030710210ENSE00001199370chr15:66782056-6678210146MP2K1_HUMAN341-356161A:341-35616
1.11ENST0000030710211ENSE00001199414chr15:66782840-667838821043MP2K1_HUMAN357-393371A:357-38226

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:312
 aligned with MP2K1_HUMAN | Q02750 from UniProtKB/Swiss-Prot  Length:393

    Alignment length:344
                                    48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318       328       338       348       358       368       378    
          MP2K1_HUMAN    39 ELELDEQQRKRLEAFLTQKQKVGELKDDDFEKISELGAGNGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMANSFVGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGCQVEGDAAETPPRPRTPGRPLSSYGMDSRPPMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCSTIGLN 382
               SCOP domains d3zlwa_ A: automated matches                                                                                                                                                                                                                                                                                                                             SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhh...hhh.eeeeeeeeee..eeeeeeee.....eeeeeeee...hhhhhhhhhhhhhhhhhh.......eeeeeee..eeeeee......hhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh......hhh.eee.....eee.....hhhhhhhh.---.......hhhhhh.....hhhhhhhhhhhhhhhhhh.......hhhhhhhhh..-----------------------------..hhhhhhhhhhhh..........hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhh..hhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------S--------------------------------------------------------------------------V-C------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------------------------PROTEIN_KINASE_ATP      ----------------------------------------------------------------------------------------PROTEIN_KINAS---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2a  PDB: A:39-97 UniProt: 27-97 [INCOMPLETE]        Exon 1.3  PDB: A:98-146 UniProt: 98-146          Exon 1.4  PDB: A:147-172  Exon 1.5          -----------------------------------------Exon 1.7b  PDB: A:232-277 UniProt: 232-299 [INCOMPLETE]             -----------------------------------------Exon 1.10       Exon 1.11  PDB: A:357-382  Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.6  PDB: A:190-231 (gaps)           -------------------------------------------------------------------Exon 1.8 [INCOMPLETE] Exon 1.9             ----------------------------------------- Transcript 1 (2)
                 3zlw A  39 ELELDEQQRKRLEAFLTQKQKVGELKDDDFEKISELGAANGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMA---VGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGC-----------------------------PMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCSTIGLN 382
                                    48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218 |   | 228       238       248       258       268        |-         -         -       308       318       328       338       348       358       368       378    
                                                                                                                                                                                                               220 224                                                  277                           307                                                                           

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3ZLW)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3ZLW)

(-) Gene Ontology  (71, 71)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (MP2K1_HUMAN | Q02750)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0004708    MAP kinase kinase activity    Catalysis of the concomitant phosphorylation of threonine (T) and tyrosine (Y) residues in a Thr-Glu-Tyr (TEY) thiolester sequence in a MAP kinase (MAPK) substrate.
    GO:0016301    kinase activity    Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0008022    protein C-terminus binding    Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxy function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
    GO:0047485    protein N-terminus binding    Interacting selectively and non-covalently with a protein N-terminus, the end of any peptide chain at which the 2-amino (or 2-imino) function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004672    protein kinase activity    Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
    GO:0019901    protein kinase binding    Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
    GO:0043539    protein serine/threonine kinase activator activity    Binds to and increases the activity of a protein serine/threonine kinase.
    GO:0004674    protein serine/threonine kinase activity    Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
    GO:0004712    protein serine/threonine/tyrosine kinase activity    Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; ATP + a protein threonine = ADP + protein threonine phosphate; and ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
    GO:0004713    protein tyrosine kinase activity    Catalysis of the reaction: ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
    GO:0004728    signal transducer, downstream of receptor, with protein tyrosine phosphatase activity    Conveys a signal from an upstream receptor or intracellular signal transducer by catalysis of the reaction: protein tyrosine phosphate + H2O = protein tyrosine + phosphate.
    GO:0004702    signal transducer, downstream of receptor, with serine/threonine kinase activity    Conveys a signal from an upstream receptor or intracellular signal transducer by catalysis of the reaction: ATP protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0060020    Bergmann glial cell differentiation    The process in which neuroepithelial cells of the neural tube give rise to Brgmann glial cells, specialized bipotential progenitors cells of the cerebellum. Differentiation includes the processes involved in commitment of a cell to a specific fate.
    GO:0070371    ERK1 and ERK2 cascade    An intracellular protein kinase cascade containing at least ERK1 or ERK2 (MAPKs), a MEK (a MAPKK) and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
    GO:0000165    MAPK cascade    An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
    GO:0000187    activation of MAPK activity    The initiation of the activity of the inactive enzyme MAP kinase (MAPK).
    GO:0007050    cell cycle arrest    A regulatory process that halts progression through the cell cycle during one of the normal phases (G1, S, G2, M).
    GO:0048870    cell motility    Any process involved in the controlled self-propelled movement of a cell that results in translocation of the cell from one place to another.
    GO:0090398    cellular senescence    A cell aging process stimulated in response to cellular stress, whereby normal cells lose the ability to divide through irreversible cell cycle arrest.
    GO:0021697    cerebellar cortex formation    The process that gives rise to the cerebellar cortex. This process pertains to the initial formation of a structure from unspecified parts. The cerebellar cortex is a thin mantle of gray matter that covers the surface of each cerebral hemisphere. It has a characteristic morphology with convolutions (gyri) and crevices (sulci) that have specific functions. Six layers of nerve cells and the nerve pathways that connect them comprise the cerebellar cortex. Together, these regions are responsible for the processes of conscious thought, perception, emotion and memory as well as advanced motor function.
    GO:0006935    chemotaxis    The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
    GO:0060502    epithelial cell proliferation involved in lung morphogenesis    The multiplication or reproduction of epithelial cells, resulting in the expansion of a cell population that contributes to the shaping of the lung.
    GO:0060324    face development    The biological process whose specific outcome is the progression of a face from an initial condition to its mature state. The face is the ventral division of the head.
    GO:0007507    heart development    The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
    GO:0030216    keratinocyte differentiation    The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
    GO:0060711    labyrinthine layer development    The process in which the labyrinthine layer of the placenta progresses, from its formation to its mature state.
    GO:0060425    lung morphogenesis    The process in which the anatomical structures of the lung are generated and organized.
    GO:0006928    movement of cell or subcellular component    The directed, self-propelled movement of a cell or subcellular component without the involvement of an external agent such as a transporter or a pore.
    GO:0008285    negative regulation of cell proliferation    Any process that stops, prevents or reduces the rate or extent of cell proliferation.
    GO:0010629    negative regulation of gene expression    Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:0030182    neuron differentiation    The process in which a relatively unspecialized cell acquires specialized features of a neuron.
    GO:0018108    peptidyl-tyrosine phosphorylation    The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.
    GO:0016310    phosphorylation    The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
    GO:0060674    placenta blood vessel development    The process whose specific outcome is the progression of a blood vessel of the placenta over time, from its formation to the mature structure.
    GO:0070374    positive regulation of ERK1 and ERK2 cascade    Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
    GO:0050772    positive regulation of axonogenesis    Any process that activates or increases the frequency, rate or extent of axonogenesis.
    GO:0045597    positive regulation of cell differentiation    Any process that activates or increases the frequency, rate or extent of cell differentiation.
    GO:0010628    positive regulation of gene expression    Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:0098779    positive regulation of macromitophagy in response to mitochondrial depolarization    The macromitophagy process that is triggered by a detection of the loss of mitochondrial membrane potential.
    GO:1903800    positive regulation of production of miRNAs involved in gene silencing by miRNA    Any process that activates or increases the frequency, rate or extent of production of miRNAs involved in gene silencing by miRNA.
    GO:0071902    positive regulation of protein serine/threonine kinase activity    Any process that increases the rate, frequency, or extent of protein serine/threonine kinase activity.
    GO:0045893    positive regulation of transcription, DNA-templated    Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:0035897    proteolysis in other organism    The chemical reactions and pathways performed by an organism resulting in the hydrolysis of proteins in another organism by cleavage of their peptide bonds.
    GO:0090170    regulation of Golgi inheritance    Any process that modulates the rate, frequency or extent of Golgi inheritance. Golgi inheritance is the partitioning of Golgi apparatus between daughter cells at cell division.
    GO:0048679    regulation of axon regeneration    Any process that modulates the frequency, rate or extent of axon regeneration.
    GO:2000641    regulation of early endosome to late endosome transport    Any process that modulates the frequency, rate or extent of early endosome to late endosome transport.
    GO:0001932    regulation of protein phosphorylation    Any process that modulates the frequency, rate or extent of addition of phosphate groups into an amino acid in a protein.
    GO:0032872    regulation of stress-activated MAPK cascade    Any process that modulates the frequency, rate or extent of signal transduction mediated by the stress-activated MAPK cascade.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0048538    thymus development    The process whose specific outcome is the progression of the thymus over time, from its formation to the mature structure. The thymus is a symmetric bi-lobed organ involved primarily in the differentiation of immature to mature T cells, with unique vascular, nervous, epithelial, and lymphoid cell components.
    GO:0030878    thyroid gland development    The process whose specific outcome is the progression of the thyroid gland over time, from its formation to the mature structure. The thyroid gland is an endoderm-derived gland that produces thyroid hormone.
    GO:0060440    trachea formation    The process pertaining to the initial formation of a trachea from unspecified parts. The process begins with the specific processes that contribute to the appearance of the discrete structure and ends when the trachea is recognizable. The trachea is the portion of the airway that attaches to the bronchi as it branches.
cellular component
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005856    cytoskeleton    Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005769    early endosome    A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0005925    focal adhesion    Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
    GO:0005770    late endosome    A prelysosomal endocytic organelle differentiated from early endosomes by lower lumenal pH and different protein composition. Late endosomes are more spherical than early endosomes and are mostly juxtanuclear, being concentrated near the microtubule organizing center.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005815    microtubule organizing center    An intracellular structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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  MP2K1_HUMAN | Q02750
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        MP2K1_HUMAN | Q027501s9j 2p55 3dv3 3dy7 3e8n 3eqb 3eqc 3eqd 3eqf 3eqg 3eqh 3eqi 3mbl 3orn 3os3 3pp1 3sls 3v01 3v04 3vvh 3w8q 3wig 3zls 3zlx 3zly 3zm4 4an2 4an3 4an9 4anb 4ark 4lmn 4mne 4u7z 4u80 4u81 5bx0 5eym 5hze

(-) Related Entries Specified in the PDB File

3zls CRYSTAL STRUCTURE OF MEK1 IN COMPLEX WITH FRAGMENT SAR198059
3zlx CRYSTAL STRUCTURE OF MEK1 IN COMPLEX WITH FRAGMENT 18
3zly CRYSTAL STRUCTURE OF MEK1 IN COMPLEX WITH FRAGMENT 8
3zm4 CRYSTAL STRUCTURE OF MEK1 IN COMPLEX WITH FRAGMENT 1