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(-) Description

Title :  CRYSTAL STRUCTURE OF A HUMAN CYCLIN-DEPENDENT KINASE 6 COMPLEX WITH A FLAVONOL INHIBITOR, FISETIN
 
Authors :  H. S. Lu, D. J. Chang, B. Baratte, L. Meijer, U. Schulze-Gahmen
Date :  05 Oct 04  (Deposition) - 01 Mar 05  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.90
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Crystal Structure, Human Cyclin-Dependent Kinase 6, Fisetin, Cell Cycle-Transferase Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  H. S. Lu, D. J. Chang, B. Baratte, L. Meijer, U. Schulze-Gahmen
Crystal Structure Of A Human Cyclin-Dependent Kinase 6 Complex With A Flavonol Inhibitor, Fisetin.
J. Med. Chem. V. 48 737 2005
PubMed-ID: 15689157  |  Reference-DOI: 10.1021/JM049353P

(-) Compounds

Molecule 1 - CYCLIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Cell LineSF-9
    Expression System PlasmidPFASTBACHTA
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Gene72, ECLF2
    Organism CommonHERPESVIRUS SAIMIRI
    Organism ScientificSAIMIRIINE HERPESVIRUS 2
    Organism Taxid10381
    SynonymV-CYCLIN
 
Molecule 2 - CELL DIVISION PROTEIN KINASE 6
    ChainsB
    EC Number2.7.1.37
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Cell LineSF-9
    Expression System PlasmidPFASTBAC1
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneCDK6
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymSERINE/THREONINE-PROTEIN KINASE PLSTIRE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1FSE1Ligand/Ion3,7,3',4'-TETRAHYDROXYFLAVONE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE B:19 , ALA B:41 , LYS B:43 , GLU B:61 , PHE B:98 , GLU B:99 , HIS B:100 , VAL B:101 , ASP B:104 , GLN B:149 , LEU B:152 , ASP B:163BINDING SITE FOR RESIDUE FSE B 309

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1XO2)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Glu B:114 -Pro B:115

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_041978D110NCDK6_HUMANPolymorphism35654944BD110N
2UniProtVAR_072638A197TCDK6_HUMANDisease (MCPH12)606231255BA197T
3UniProtVAR_041979P199LCDK6_HUMANUnclassified  ---BP199L

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

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PROTEIN_KINASE_ATPPS00107 Protein kinases ATP-binding region signature.CDK6_HUMAN19-43  1B:19-43
2CYCLINSPS00292 Cyclins signature.CGH2_SHV2152-83  1A:52-83
3PROTEIN_KINASE_STPS00108 Serine/Threonine protein kinases active-site signature.CDK6_HUMAN141-153  1B:141-153

(-) Exons   (7, 7)

Asymmetric/Biological Unit (7, 7)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.3ENST000002657343ENSE00001337042chr7:92463231-9246318745CDK6_HUMAN-00--
1.4bENST000002657344bENSE00001132651chr7:92463004-92462405600CDK6_HUMAN1-78781B:11-7868
1.5ENST000002657345ENSE00000877375chr7:92404145-92404010136CDK6_HUMAN78-123461B:78-123 (gaps)46
1.6aENST000002657346aENSE00000877376chr7:92355107-92354940168CDK6_HUMAN124-179561B:124-17956
1.7aENST000002657347aENSE00001764561chr7:92300849-92300740110CDK6_HUMAN180-216371B:180-21637
1.8ENST000002657348ENSE00000705202chr7:92252400-9225235051CDK6_HUMAN216-233181B:216-23318
1.9bENST000002657349bENSE00000705199chr7:92247521-92247386136CDK6_HUMAN233-278461B:233-278 (gaps)46
1.10cENST0000026573410cENSE00001132644chr7:92244600-9223423510366CDK6_HUMAN279-326481B:279-30527

(-) 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:243
 aligned with CGH2_SHV21 | Q01043 from UniProtKB/Swiss-Prot  Length:254

    Alignment length:246
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248      
           CGH2_SHV21     9 NRAKIDSTTMKDPRVLNNLKLRELLLPKFTSLWEIQTEVTVDNRTILLTWMHLLCESFELDKSVFPLSVSILDRYLCKKQGTKKTLQKIGAACVLIGSKIRTVKPMTVSKLTYLSCDCFTNLELINQEKDILEALKWDTEAVLATDFLIPLCNALKIPEDLWPQLYEAASTTICKALIQPNIALLSPGLICAGGLLTTIETDNTNCRPWTCYLEDLSSILNFSTNTVRTVKDQVSEAFSLYDLEIL 254
               SCOP domains d1xo2a1 A:9-148 Viral cyclin                                                                                                                d1xo2a2 A:149-254 Viral cyclin                                                                             SCOP domains
               CATH domains ----------------------------1xo2A01 A:37-148  [code=1.10.472.10, no name defined]                                                           1xo2A02 A:149-254  [code=1.10.472.10, no name defined]                                                     CATH domains
               Pfam domains -------------Cyclin_N-1xo2A01 A:22-148                                                                                                      Herp-Cyclin-1xo2A02 A:149-254                                                                              Pfam domains
         Sec.struct. author .ee..........hhhhhhhhhhh...............hhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh....hhhhhhh..---...hhhhhhhhhhhhhh.......hhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh......hhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------------------------CYCLINS  PDB: A:52-83           --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1xo2 A   9 NRAKIDSTTMKDPRVLNNLKLRELLLPKFTSLWEIQTEVTVDNRTILLTWMHLLCESFELDKSVFPLSVSILDRYLCKKQGTKKTLQKIGAACVLIGSKIRTVKPMTVSKLTYLS---FTNLELINQEKDILEALKWDTEAVLATDFLIPLCNALKIPEDLWPQLYEAASTTICKALIQPNIALLSPGLICAGGLLTTIETDNTNCRPWTCYLEDLSSILNFSTNTVRTVKDQVSEAFSLYDLEIL 254
                                    18        28        38        48        58        68        78        88        98       108       118    |  128       138       148       158       168       178       188       198       208       218       228       238       248      
                                                                                                                                            123 127                                                                                                                               

Chain B from PDB  Type:PROTEIN  Length:289
 aligned with CDK6_HUMAN | Q00534 from UniProtKB/Swiss-Prot  Length:326

    Alignment length:295
                                    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300     
           CDK6_HUMAN    11 QQYECVAEIGEGAYGKVFKARDLKNGGRFVALKRVRVQTGEEGMPLSTIREVAVLRHLETFEHPNVVRLFDVCTVSRTDRETKLTLVFEHVDQDLTTYLDKVPEPGVPTETIKDMMFQLLRGLDFLHSHRVVHRDLKPQNILVTSSGQIKLADFGLARIYSFQMALTSVVVTLWYRAPEVLLQSSYATPVDLWSVGCIFAEMFRRKPLFRGSSDVDQLGKILDVIGLPGEEDWPRDVALPRQAFHSKSAQPIEKFVTDIDELGKDLLLKCLTFNPAKRISAYSALSHPYFQDLER 305
               SCOP domains d1xo2b_ B: Cyclin-dependent PK, CDK6                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1xo2B01 B:11-102 Phosphorylase Kinase; domain 1                                             1xo2B02 B:103-299 Transferase(Phosphotransferase) domain 1                                                                                                                                           ------ CATH domains
               Pfam domains --Pkinase-1xo2B01 B:13-300                                                                                                                                                                                                                                                                        ----- Pfam domains
         Sec.struct. author ..eeeeeeeee....eeeeeee.......eeeeeeee.......hhhhhhhhhhhhhhhhhh......eeeeeee..---.eeeeeeee...eehhhhh..........hhhhhhhhhhhhhhhhhhhh.ee....hhh.eee.....eee......ee.....ee..........hhhhhh.....hhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh...................---..hhhhh......hhhhhhhhhh..hhhhh.hhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------N--------------------------------------------------------------------------------------T-L---------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------PROTEIN_KINASE_ATP       -------------------------------------------------------------------------------------------------PROTEIN_KINAS-------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.4b  PDB: B:11-78 UniProt: 1-78 [INCOMPLETE]                  ---------------------------------------------Exon 1.6a  PDB: B:124-179 UniProt: 124-179              Exon 1.7a  PDB: B:180-216            ----------------Exon 1.9b  PDB: B:233-278 (gaps)              Exon 1.10c  PDB: B:279-305  Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------Exon 1.5  PDB: B:78-123 (gaps) UniProt: 78-123--------------------------------------------------------------------------------------------Exon 1.8          ------------------------------------------------------------------------ Transcript 1 (2)
                 1xo2 B  11 QQYECVAEIGEGAYGKVFKARDLKNGGRFVALKRVRVQTGEEGMPLSTIREVAVLRHLETFEHPNVVRLFDVCTVSR---ETKLTLVFEHVDQDLTTYLDKVPEPGVPTETIKDMMFQLLRGLDFLHSHRVVHRDLKPQNILVTSSGQIKLADFGLARIYSFQMALTSVVVTLWYRAPEVLLQSSYATPVDLWSVGCIFAEMFRRKPLFRGSSDVDQLGKILDVIGLPGEEDWPRDVALPRQAFH---AQPIEKFVTDIDELGKDLLLKCLTFNPAKRISAYSALSHPYFQDLER 305
                                    20        30        40        50        60        70        80      |  -|      100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250    |  260       270       280       290       300     
                                                                                                       87  91                                                                                                                                                                 255 259                                              

   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  (2, 3)

Asymmetric/Biological Unit

(-) CATH Domains  (3, 4)

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

(-) Pfam Domains  (3, 3)

Asymmetric/Biological Unit
(-)
Clan: Cyclin (63)
(-)
Clan: PKinase (934)

(-) Gene Ontology  (55, 57)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CGH2_SHV21 | Q01043)
biological process
    GO:0007049    cell cycle    The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
    GO:0051301    cell division    The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
    GO:0060153    modulation by virus of host cell cycle    Any viral process that modulates the rate or extent of progression through the cell cycle.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.

Chain B   (CDK6_HUMAN | Q00534)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0030332    cyclin binding    Interacting selectively and non-covalently with cyclins, proteins whose levels in a cell varies markedly during the cell cycle, rising steadily until mitosis, then falling abruptly to zero. As cyclins reach a threshold level, they are thought to drive cells into G2 phase and thus to mitosis.
    GO:0004693    cyclin-dependent protein serine/threonine kinase activity    Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate. This reaction requires the binding of a regulatory cyclin subunit and full activity requires stimulatory phosphorylation by a CDK-activating kinase (CAK).
    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: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:0000082    G1/S transition of mitotic cell cycle    The mitotic cell cycle transition by which a cell in G1 commits to S phase. The process begins with the build up of G1 cyclin-dependent kinase (G1 CDK), resulting in the activation of transcription of G1 cyclins. The process ends with the positive feedback of the G1 cyclins on the G1 CDK which commits the cell to S phase, in which DNA replication is initiated.
    GO:0007219    Notch signaling pathway    A series of molecular signals initiated by the binding of an extracellular ligand to the receptor Notch on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0033077    T cell differentiation in thymus    The process in which a precursor cell type acquires the specialized features of a T cell via a differentiation pathway dependent upon transit through the thymus.
    GO:0014002    astrocyte development    The process aimed at the progression of an astrocyte over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell. An astrocyte is the most abundant type of glial cell. Astrocytes provide support for neurons and regulate the environment in which they function.
    GO:0007049    cell cycle    The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
    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:0043697    cell dedifferentiation    The process in which a specialized cell loses the structural or functional features that characterize it in the mature organism, or some other relatively stable phase of the organism's life history. Under certain conditions, these cells can revert back to the features of the stem cells that were their ancestors.
    GO:0030154    cell differentiation    The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
    GO:0051301    cell division    The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
    GO:0021542    dentate gyrus development    The process whose specific outcome is the progression of the dentate gyrus over time, from its formation to the mature structure. The dentate gyrus is one of two interlocking gyri of the hippocampus. It contains granule cells, which project to the pyramidal cells and interneurons of the CA3 region of the ammon gyrus.
    GO:0048699    generation of neurons    The process in which nerve cells are generated. This includes the production of neuroblasts and their differentiation into neurons.
    GO:0042063    gliogenesis    The process that results in the generation of glial cells. This includes the production of glial progenitors and their differentiation into mature glia.
    GO:0002244    hematopoietic progenitor cell differentiation    The process in which precursor cell type acquires the specialized features of a hematopoietic progenitor cell, a class of cell types including myeloid progenitor cells and lymphoid progenitor cells.
    GO:0060218    hematopoietic stem cell differentiation    The process in which a relatively unspecialized cell acquires specialized features of a hematopoietic stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells.
    GO:0030097    hemopoiesis    The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates.
    GO:0021670    lateral ventricle development    The process whose specific outcome is the progression of the lateral ventricles over time, from the formation to the mature structure. The two lateral ventricles are a cavity in each of the cerebral hemispheres derived from the cavity of the embryonic neural tube. They are separated from each other by the septum pellucidum, and each communicates with the third ventricle by the foramen of Monro, through which also the choroid plexuses of the lateral ventricles become continuous with that of the third ventricle.
    GO:0045786    negative regulation of cell cycle    Any process that stops, prevents or reduces the rate or extent of progression through the cell cycle.
    GO:0045596    negative regulation of cell differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of cell differentiation.
    GO:0008285    negative regulation of cell proliferation    Any process that stops, prevents or reduces the rate or extent of cell proliferation.
    GO:2000773    negative regulation of cellular senescence    Any process that stops, prevents or reduces the frequency, rate or extent of cellular senescence.
    GO:0050680    negative regulation of epithelial cell proliferation    Any process that stops, prevents or reduces the rate or extent of epithelial cell proliferation.
    GO:0045638    negative regulation of myeloid cell differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of myeloid cell differentiation.
    GO:0045668    negative regulation of osteoblast differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of osteoblast differentiation.
    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:0001954    positive regulation of cell-matrix adhesion    Any process that activates or increases the rate or extent of cell adhesion to an extracellular matrix.
    GO:0048146    positive regulation of fibroblast proliferation    Any process that activates or increases the frequency, rate or extent of multiplication or reproduction of fibroblast cells.
    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:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:2000145    regulation of cell motility    Any process that modulates the frequency, rate or extent of cell motility.
    GO:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0045646    regulation of erythrocyte differentiation    Any process that modulates the frequency, rate or extent of erythrocyte differentiation.
    GO:0010468    regulation of gene expression    Any process that modulates 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:0009615    response to virus    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 stimulus from a virus.
    GO:0003323    type B pancreatic cell development    The process whose specific outcome is the progression of a type B pancreatic cell over time, from its formation to the mature structure. A type B pancreatic cell is a cell located towards center of the islets of Langerhans that secretes insulin.
cellular component
    GO:0042995    cell projection    A prolongation or process extending from a cell, e.g. a flagellum or axon.
    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:0000307    cyclin-dependent protein kinase holoenzyme complex    Cyclin-dependent protein kinases (CDKs) are enzyme complexes that contain a kinase catalytic subunit associated with a regulatory cyclin partner.
    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: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: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.
    GO:0001726    ruffle    Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork.

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 Related Entries

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

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        CDK6_HUMAN | Q005341bi7 1bi8 1blx 1g3n 1jow 2euf 2f2c 3nup 3nux 4aua 4ez5 4tth 5l2i 5l2s 5l2t
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(-) Related Entries Specified in the PDB File

1jow