Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asym./Biol. Unit
(-)Asym./Biol. Unit - sites
collapse expand < >
Image Asym./Biol. Unit
Asym./Biol. Unit  (Jmol Viewer)
Image Asym./Biol. Unit - sites
Asym./Biol. Unit - sites  (Jmol Viewer)

(-) Description

Title :  CRYSTAL STRUCTURE OF MAPKAP KINASE 2 (MK2) COMPLEXED WITH A POTENT 3-AMINOPYRAZOLE ATP SITE INHIBITOR
 
Authors :  M. Kroemer, J. Velcicky, A. Izaac, C. Be, C. Huppertz, D. Pflieger, A. Schlapbach, C. Scheufler
Date :  28 Oct 09  (Deposition) - 26 Jan 10  (Release) - 16 Feb 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.55
Chains :  Asym./Biol. Unit :  A
Keywords :  Small Molecule Inhibitor, 3-Aminopyrazole Scaffold, Scaffold Hoping, Atp-Site Kinase Inhibitor, Induced Fit, Novel Hydrophobic Pocket, Activation Loop Deletion, Alternative Splicing, Atp-Binding, Kinase, Nucleotide-Binding, Phosphoprotein, Polymorphism, Serine/Threonine-Protein Kinase, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Velcicky, R. Feifel, S. Hawtin, R. Heng, C. Huppertz, G. Koch, M. Kroemer, H. Moebitz, L. Revesz, C. Scheufler, A. Schlapbach
Novel 3-Aminopyrazole Inhibitors Of Mk-2 Discovered By Scaffold Hopping Strategy.
Bioorg. Med. Chem. Lett. V. 20 1293 2010
PubMed-ID: 20060294  |  Reference-DOI: 10.1016/J.BMCL.2009.10.138

(-) Compounds

Molecule 1 - MAP KINASE-ACTIVATED PROTEIN KINASE 2
    ChainsA
    EC Number2.7.11.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET
    Expression System StrainBL21(DE3)TUNER
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentKINASE DOMAIN
    GeneMAPKAPK2
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymMAPK-ACTIVATED PROTEIN KINASE 2, MAPKAP KINASE 2, MAPKAPK-2, MK2

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1LX91Ligand/Ion6-{3-AMINO-1-[3-(1H-INDOL-6-YL)PHENYL]-1H-PYRAZOL-4-YL}-3,4-DIHYDROISOQUINOLIN-1(2H)-ONE
2MG1Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHOH A:17 , SER A:112 , CYS A:114 , ILE A:117BINDING SITE FOR RESIDUE MG A 1
2AC2SOFTWAREHOH A:10 , LEU A:70 , GLN A:80 , ILE A:81 , PHE A:82 , LYS A:89 , PHE A:90 , ALA A:91 , LYS A:93 , GLU A:139 , LEU A:141 , ASP A:142 , ASN A:191 , LEU A:193 , THR A:206 , ASP A:207BINDING SITE FOR RESIDUE LX9 A 365

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3KGA)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric/Biological Unit (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_040753A173GMAPK2_HUMANPolymorphism35671930AA173G
2UniProtVAR_040754A361SMAPK2_HUMANPolymorphism55894011AA361S

  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.MAPK2_HUMAN70-93  1A:70-93
2PROTEIN_KINASE_STPS00108 Serine/Threonine protein kinases active-site signature.MAPK2_HUMAN182-194  1A:182-194

(-) Exons   (10, 10)

Asymmetric/Biological Unit (10, 10)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1bENST000003671031bENSE00001825387chr1:206858382-206858853472MAPK2_HUMAN1-93931A:47-9347
1.2ENST000003671032ENSE00001069545chr1:206902055-206902194140MAPK2_HUMAN94-140471A:94-14047
1.3bENST000003671033bENSE00001069547chr1:206902380-20690244465MAPK2_HUMAN140-162231A:140-16223
1.4bENST000003671034bENSE00001069548chr1:206902741-20690282080MAPK2_HUMAN162-188271A:162-18827
1.5ENST000003671035ENSE00001069551chr1:206903317-206903443127MAPK2_HUMAN189-231431A:189-21527
1.6ENST000003671036ENSE00001648220chr1:206904033-20690410876MAPK2_HUMAN231-256261A:237-25620
1.7ENST000003671037ENSE00001069544chr1:206904483-206904607125MAPK2_HUMAN256-298431A:256-298 (gaps)43
1.8bENST000003671038bENSE00001069550chr1:206904985-20690507086MAPK2_HUMAN298-326291A:298-32629
1.9bENST000003671039bENSE00001069552chr1:206905184-20690526481MAPK2_HUMAN327-353271A:327-35327
1.9dENST000003671039dENSE00001443498chr1:206905920-2069076281709MAPK2_HUMAN354-400471A:354-36411

(-) 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:290
 aligned with MAPK2_HUMAN | P49137 from UniProtKB/Swiss-Prot  Length:400

    Alignment length:318
                                    56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356        
          MAPK2_HUMAN    47 HVKSGLQIKKNAIIDDYKVTSQVLGLGINGKVLQIFNKRTQEKFALKMLQDCPKARREVELHWRASQCPHIVRIVDVYENLYAGRKCLLIVMECLDGGELFSRIQDRGDQAFTEREASEIMKSIGEAIQYLHSINIAHRDVKPENLLYTSKRPNAILKLTDFGFAKETTSHNSLTTPCYTPYYVAPEVLGPEKYDKSCDMWSLGVIMYILLCGYPPFYSNHGLAISPGMKTRIRMGQYEFPNPEWSEVSEEVKMLIRNLLKTEPTQRMTITEFMNHPWIMQSTKVPQTPLHTSRVLKEDKERWEDVKEEMTSALATMR 364
               SCOP domains d3kgaa_ A: MAP kinase activated protein kinase 2, mapkap2                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ------------3kgaA01 A:59-140 Phosphorylase Kinase; domain 1                                   3kgaA02 A:141-364 Transferase(Phosphotransferase) domain 1                                                                                                                                                                       CATH domains
               Pfam domains -----------------Pkinase-3kgaA01 A:64-325                                                                                                                                                                                                                                              --------------------------------------- Pfam domains
         Sec.struct. author ...........hhhh.eeeeeeeee.....eeeeeee.....eeeeeeee.hhhhhhhhhhhhhhh.......eeeeeeeee..eeeeeeeee.....hhhhhhhh......hhhhhhhhhhhhhhhhhhhhhh.ee....hhh.eee........eee......ee..---------------------.hhhhhhhhhhhhhhhhhhhhhh......-------..............hhhhhh..hhhhhhhhhhhh........hhhhhhhhhhhhhhhhh.....hhhhhhhhh..hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------G-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S--- SAPs(SNPs)
                    PROSITE -----------------------PROTEIN_KINASE_ATP      ----------------------------------------------------------------------------------------PROTEIN_KINAS-------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1b  PDB: A:47-93 UniProt: 1-93          Exon 1.2  PDB: A:94-140 UniProt: 94-140        ---------------------Exon 1.4b  PDB: A:162-188  Exon 1.5  PDB: A:189-215 UniProt: 189-231  ------------------------Exon 1.7  PDB: A:256-298 (gaps)            ----------------------------Exon 1.9b  PDB: A:327-353  Exon 1.9d   Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------------------Exon 1.3b              --------------------------------------------------------------------Exon 1.6  PDB: A:237-256  -----------------------------------------Exon 1.8b  PDB: A:298-326    -------------------------------------- Transcript 1 (2)
                 3kga A  47 HVKSGLQIKKNAIIDDYKVTSQVLGLGINGKVLQIFNKRTQEKFALKMLQDCPKARREVELHWRASQCPHIVRIVDVYENLYAGRKCLLIVMECLDGGELFSRIQDRGDQAFTEREASEIMKSIGEAIQYLHSINIAHRDVKPENLLYTSKRPNAILKLTDFGFAKETT---------------------GEKYDKSCDMWSLGVIMYILLCGYPPFYS-------PGMKTRIRMGQYEFPNPEWSEVSEEVKMLIRNLLKTEPTQRMTITEFMNHPWIMQSTKVPQTPLHTSRVLKEDKERWEDVKEEMTSALATMR 364
                                    56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206        |-         -         -|      246       256        |-      |276       286       296       306       316       326       336       346       356        
                                                                                                                                                                                                  215                   237                         265     273                                                                                           

   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  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: PKinase (934)

(-) Gene Ontology  (44, 44)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (MAPK2_HUMAN | P49137)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0009931    calcium-dependent protein serine/threonine kinase activity    Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; and ATP + a protein threonine = ADP + protein threonine phosphate. These reactions are dependent on the presence of calcium ions.
    GO:0005516    calmodulin binding    Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
    GO:0004683    calmodulin-dependent protein kinase activity    Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; and ATP + a protein threonine = ADP + protein threonine phosphate. These reactions require the presence of calcium-bound calmodulin.
    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: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: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:0004871    signal transducer activity    Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
    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:0070935    3'-UTR-mediated mRNA stabilization    An mRNA stabilization process in which one or more RNA-binding proteins associate with the 3'-untranslated region (UTR) of an mRNA.
    GO:0031572    G2 DNA damage checkpoint    A cell cycle checkpoint that detects and negatively regulates progression from G2 to M phase in the cell cycle in response to DNA damage.
    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:0007265    Ras protein signal transduction    A series of molecular signals within the cell that are mediated by a member of the Ras superfamily of proteins switching to a GTP-bound active state.
    GO:0000187    activation of MAPK activity    The initiation of the activity of the inactive enzyme MAP kinase (MAPK).
    GO:0006974    cellular response to DNA damage stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
    GO:0035924    cellular response to vascular endothelial growth factor stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a vascular endothelial growth factor stimulus.
    GO:0006954    inflammatory response    The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
    GO:0048839    inner ear development    The process whose specific outcome is the progression of the inner ear over time, from its formation to the mature structure.
    GO:0006691    leukotriene metabolic process    The chemical reactions and pathways involving leukotriene, a pharmacologically active substance derived from a polyunsaturated fatty acid, such as arachidonic acid.
    GO:0048255    mRNA stabilization    Prevention of degradation of mRNA molecules. In the absence of compensating changes in other processes, the slowing of mRNA degradation can result in an overall increase in the population of active mRNA molecules.
    GO:0044351    macropinocytosis    An endocytosis process that results in the uptake of liquid material by cells from their external environment by the 'ruffling' of the cell membrane to form heterogeneously sized intracellular vesicles called macropinosomes, which can be up to 5 micrometers in size.
    GO:0038066    p38MAPK cascade    An intracellular protein kinase cascade containing at least a p38 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:0018105    peptidyl-serine phosphorylation    The phosphorylation of peptidyl-serine to form peptidyl-O-phospho-L-serine.
    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:0042535    positive regulation of tumor necrosis factor biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of tumor necrosis factor, an inflammatory cytokine produced by macrophages/monocytes during acute inflammation and which is responsible for a diverse range of signaling events within cells, leading to necrosis or apoptosis.
    GO:0046777    protein autophosphorylation    The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:1900034    regulation of cellular response to heat    Any process that modulates the frequency, rate or extent of cellular response to heat.
    GO:0032675    regulation of interleukin-6 production    Any process that modulates the frequency, rate, or extent of interleukin-6 production.
    GO:0043488    regulation of mRNA stability    Any process that modulates the propensity of mRNA molecules to degradation. Includes processes that both stabilize and destabilize mRNAs.
    GO:0032680    regulation of tumor necrosis factor production    Any process that modulates the frequency, rate, or extent of tumor necrosis factor production.
    GO:0034097    response to cytokine    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a cytokine stimulus.
    GO:0032496    response to lipopolysaccharide    Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
    GO:0006950    response to stress    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a disturbance in organismal or cellular homeostasis, usually, but not necessarily, exogenous (e.g. temperature, humidity, ionizing radiation).
    GO:0002224    toll-like receptor signaling pathway    Any series of molecular signals generated as a consequence of binding to a toll-like receptor. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
    GO:0048010    vascular endothelial growth factor receptor signaling pathway    Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription.
cellular component
    GO:0005813    centrosome    A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    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: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:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    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.

 Visualization

(-) Interactive Views

Asymmetric/Biological Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
    LX9  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    MG  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
    AC1  [ RasMol ]  +environment [ RasMol ]
    AC2  [ RasMol ]  +environment [ RasMol ]
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 3kga)
 

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  3kga
    Family and Domain InformationProDom | SYSTERS
    General Structural InformationGlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in MembranesOPM
    Protein SurfaceSURFACE
    Secondary StructureDSSP (structure derived) | HSSP (homology derived)
    Structural GenomicsGeneCensus
    Structural NeighboursCE | VAST
    Structure ClassificationCATH | Dali | SCOP
    Validation and Original DataBMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  MAPK2_HUMAN | P49137
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  2.7.11.1
    General Enzyme InformationBRENDA | EC-PDB | Enzyme | IntEnz
    PathwayKEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease InformationOMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related InformationGenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain InformationXDom
    Interatomic Contacts of Structural UnitsCSU
    Ligand-protein ContactsLPC
    Protein CavitiescastP
    Sequence and Secondary StructurePDBCartoon
    Structure AlignmentSTRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence BrowserSTING
 
Access by UniProt ID/Accession number
  MAPK2_HUMAN | P49137
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        MAPK2_HUMAN | P491371kwp 1nxk 1ny3 2jbo 2jbp 2okr 2onl 2oza 2p3g 2pzy 3a2c 3fpm 3fyj 3fyk 3gok 3ka0 3kc3 3m2w 3m42 3r2b 3r2y 3r30 3wi6 4tyh

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 3KGA)