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(-) Description

Title :  CRYSTAL STRUCTURAL OF CBX5 CHROMO SHADOW DOMAIN
 
Authors :  M. F. Amaya, Z. Li, Y. Li, I. Kozieradzki, A. M. Edwards, C. H. Arrowsmith J. Weigelt, C. Bountra, A. Bochkarev, J. Min, H. Ouyang, Structural G Consortium (Sgc)
Date :  30 Jun 09  (Deposition) - 18 Aug 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.48
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  C  (1x)
Biol. Unit 4:  D  (1x)
Keywords :  Cbx5, Chromo Shadow Domain, Structural Genomics, Structural Genomics Consortium, Sgc, Centromere, Nucleus, Phosphoprotein, Transcription (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  Z. Li, Y. Li, M. F. Amaya, A. M. Edwards, C. H. Arrowsmith, J. Weigelt, C. Bountra, A. Bochkarev, J. Min, H. Ouyang
Crystal Structural Of Cbx5 Chromo Shadow Domain
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - CHROMOBOX PROTEIN HOMOLOG 5
    ChainsA, B, C, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GeneCBX5, HP1A
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymHETEROCHROMATIN PROTEIN 1 HOMOLOG ALPHA, HP1 ALPHA, ANTIGEN P25

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABCD
Biological Unit 1 (1x)A   
Biological Unit 2 (1x) B  
Biological Unit 3 (1x)  C 
Biological Unit 4 (1x)   D

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1NA2Ligand/IonSODIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION
Biological Unit 3 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION
Biological Unit 4 (0, 0)
No.NameCountTypeFull Name
1NA-1Ligand/IonSODIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:62 , PRO A:63 , GLN A:64 , ILE A:65BINDING SITE FOR RESIDUE NA A 76
2AC2SOFTWARECYS B:62 , PRO B:63 , GLN B:64 , ILE B:65BINDING SITE FOR RESIDUE NA B 76

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3I3C)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3I3C)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3I3C)

(-) PROSITE Motifs  (1, 4)

Asymmetric Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.CBX5_HUMAN20-78
121-179
 
 
 
  4-
A:23-72
B:23-73
C:23-72
D:23-72
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.CBX5_HUMAN20-78
121-179
 
 
 
  1-
A:23-72
-
-
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.CBX5_HUMAN20-78
121-179
 
 
 
  1-
-
B:23-73
-
-
Biological Unit 3 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.CBX5_HUMAN20-78
121-179
 
 
 
  1-
-
-
C:23-72
-
Biological Unit 4 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.CBX5_HUMAN20-78
121-179
 
 
 
  1-
-
-
-
D:23-72

(-) Exons   (0, 0)

(no "Exon" information available for 3I3C)

(-) Sequences/Alignments

Asymmetric 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:57
 aligned with CBX5_HUMAN | P45973 from UniProtKB/Swiss-Prot  Length:191

    Alignment length:60
                                   120       130       140       150       160       170
           CBX5_HUMAN   111 NDIARGFERGLEPEKIIGATDSCGDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE 170
               SCOP domains d3i3ca_ A: automated    matches                              SCOP domains
               CATH domains 3i3cA00 A:13-72  [cod   e=2.40.50.40, no name defined]       CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author ....hhhhhh..eeeeeeee.---..eeeeee.....eeeeehhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------CHROMO_2  PDB: A:23-72 UniProt: 121-179            PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                 3i3c A  13 NDIARGFERGLEPEKIIGATD---DLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE  72
                                    22        32|   |   42        52        62        72
                                               33  37                                   

Chain B from PDB  Type:PROTEIN  Length:58
 aligned with CBX5_HUMAN | P45973 from UniProtKB/Swiss-Prot  Length:191

    Alignment length:60
                                   121       131       141       151       161       171
           CBX5_HUMAN   112 DIARGFERGLEPEKIIGATDSCGDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEER 171
               SCOP domains d3i3cb_ B: automated   matches                               SCOP domains
               CATH domains 3i3cB00 B:14-73  [cod  e=2.40.50.40, no name defined]        CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhh..eeeeeeee..--..eeeeee.....eeeeehhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------CHROMO_2  PDB: B:23-73 UniProt: 121-179             PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                 3i3c B  14 DIARGFERGLEPEKIIGATDS--DLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEER  73
                                    23        33|  |    43        53        63        73
                                               34 37                                    

Chain C from PDB  Type:PROTEIN  Length:57
 aligned with CBX5_HUMAN | P45973 from UniProtKB/Swiss-Prot  Length:191

    Alignment length:59
                                   121       131       141       151       161         
           CBX5_HUMAN   112 DIARGFERGLEPEKIIGATDSCGDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE 170
               SCOP domains d3i3cc_ C: automated   matches                              SCOP domains
               CATH domains 3i3cC00 C:14-72  [co  de=2.40.50.40, no name defined]       CATH domains
               Pfam domains ----------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhh..eeeeeeee.--...eeeeee.....eeeeehhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------CHROMO_2  PDB: C:23-72 UniProt: 121-179            PROSITE
                 Transcript ----------------------------------------------------------- Transcript
                 3i3c C  14 DIARGFERGLEPEKIIGATD--GDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE  72
                                    23        33  |     43        53        63         
                                              33 36                                    

Chain D from PDB  Type:PROTEIN  Length:57
 aligned with CBX5_HUMAN | P45973 from UniProtKB/Swiss-Prot  Length:191

    Alignment length:59
                                   121       131       141       151       161         
           CBX5_HUMAN   112 DIARGFERGLEPEKIIGATDSCGDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE 170
               SCOP domains d3i3cd_ D: automated   matches                              SCOP domains
               CATH domains 3i3cD00 D:14-72  [cod  e=2.40.50.40, no name defined]       CATH domains
               Pfam domains ----------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhh..eeeeeeee..--..eeeeee.....eeeeehhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------CHROMO_2  PDB: D:23-72 UniProt: 121-179            PROSITE
                 Transcript ----------------------------------------------------------- Transcript
                 3i3c D  14 DIARGFERGLEPEKIIGATDS--DLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEE  72
                                    23        33|  |    43        53        63         
                                               34 37                                   

   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, 4)

Asymmetric Unit

(-) CATH Domains  (1, 4)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3I3C)

(-) Gene Ontology  (27, 27)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (CBX5_HUMAN | P45973)
molecular function
    GO:0003682    chromatin binding    Interacting selectively and non-covalently with chromatin, the network of fibers of DNA, protein, and sometimes RNA, that make up the chromosomes of the eukaryotic nucleus during interphase.
    GO:0042826    histone deacetylase binding    Interacting selectively and non-covalently with the enzyme histone deacetylase.
    GO:0035064    methylated histone binding    Interacting selectively and non-covalently with a histone in which a residue has been modified by methylation. Histones are any of a group of water-soluble proteins found in association with the DNA of eukaroytic chromosomes.
    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:0030674    protein binding, bridging    The binding activity of a molecule that brings together two or more protein molecules, or a protein and another macromolecule or complex, through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way.
    GO:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    GO:0070491    repressing transcription factor binding    Interacting selectively and non-covalently with a transcription repressor, any protein whose activity is required to prevent or downregulate transcription.
biological process
    GO:0007596    blood coagulation    The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers.
    GO:0045892    negative regulation of transcription, DNA-templated    Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
    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.
cellular component
    GO:0016605    PML body    A class of nuclear body; they react against SP100 auto-antibodies (PML, promyelocytic leukemia); cells typically contain 10-30 PML bodies per nucleus; alterations in the localization of PML bodies occurs after viral infection.
    GO:0010369    chromocenter    A region in which centric, heterochromatic portions of one or more chromosomes form a compact structure.
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    GO:0000775    chromosome, centromeric region    The region of a chromosome that includes the centromeric DNA and associated proteins. In monocentric chromosomes, this region corresponds to a single area of the chromosome, whereas in holocentric chromosomes, it is evenly distributed along the chromosome.
    GO:0000792    heterochromatin    A compact and highly condensed form of chromatin.
    GO:0000118    histone deacetylase complex    A protein complex that possesses histone deacetylase activity.
    GO:0035097    histone methyltransferase complex    A multimeric complex that is able to catalyze the addition of methyl groups to histone proteins.
    GO:0000776    kinetochore    A multisubunit complex that is located at the centromeric region of DNA and provides an attachment point for the spindle microtubules.
    GO:0000784    nuclear chromosome, telomeric region    The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0005635    nuclear envelope    The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
    GO:0005720    nuclear heterochromatin    A condensed form of chromatin, occurring in the nucleus during interphase, that stains strongly with basophilic dyes. The DNA of heterochromatin is typically replicated at a later stage in the cell-division cycle than euchromatin.
    GO:0031618    nuclear pericentric heterochromatin    Nuclear heterochromatin that is located adjacent to the CENP-A rich centromere 'central core' and characterized by the modified histone H3K9me3.
    GO:0005730    nucleolus    A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
    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:0005721    pericentric heterochromatin    Heterochromatin that is located adjacent to the CENP-A rich centromere 'central core' and characterized by the modified histone H3K9me3.
    GO:0017053    transcriptional repressor complex    A protein complex that possesses activity that prevents or downregulates transcription.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CBX5_HUMAN | P459733fdt

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