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

(-) Description

Title :  CHROMODOMAIN OF HP1 COMPLEXED WITH HISTONE H3 TAIL CONTAINING MONOMETHYLLYSINE 9.
 
Authors :  S. A. Jacobs, S. Khorasanizadeh
Date :  30 Jul 03  (Deposition) - 12 Oct 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.64
Chains :  Asym./Biol. Unit :  A,P
Keywords :  Chromodomain, Hp1, Chromatin, Methyllysine, Monomethyllysine, Histone, H3, Structural Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  S. A. Jacobs, S. Khorasanizadeh
Chromodomain Of Hp1 Complexed With Histone H3 Tail Containing Monomethyllysine 9
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HETEROCHROMATIN PROTEIN 1
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET11A
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentSEQUENCE DATABASE RESIDUES 17-76
    GeneSU(VAR)205 OR HP1 OR CG8409
    Organism CommonFRUIT FLY
    Organism ScientificDROSOPHILA MELANOGASTER
    Organism Taxid7227
    SynonymHP1, NONHISTONE CHROMOSOMAL PROTEIN C1A9 ANTIGEN
 
Molecule 2 - HISTONE H3
    ChainsP
    EngineeredYES
    FragmentTAIL RESIDUES 1-16
    Other DetailsTHE PEPTIDE IS CHEMICALLY SYNTHESIZED. THE SEQUENCE IS NATURALLY FOUND IN HOMO SAPIENS (HUMAN).
    SyntheticYES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AP

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1MLZ1Mod. Amino AcidN-METHYL-LYSINE

(-) Sites  (0, 0)

(no "Site" information available for 1Q3L)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1Q3L)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1Q3L)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1Q3L)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHROMO_2PS50013 Chromo and chromo shadow domain profile.HP1_DROME24-82
147-205
  1A:24-74
-
2CHROMO_1PS00598 Chromo domain signature.HP1_DROME41-61  1A:41-61

(-) Exons   (0, 0)

(no "Exon" information available for 1Q3L)

(-) 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:52
 aligned with HP1_DROME | P05205 from UniProtKB/Swiss-Prot  Length:206

    Alignment length:52
                                    32        42        52        62        72  
             HP1_DROME   23 EYAVEKIIDRRVRKGKVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASR 74
               SCOP domains d1q3la_ A: Heterochromatin protein 1, HP1            SCOP domains
               CATH domains 1q3lA00 A:23-74  [code=2.40.50.40, no name defined]  CATH domains
               Pfam domains -Chromo-1q3lA01 A:24-73                            - Pfam domains
         Sec.struct. author .eeeeeeeeeeee..eeeeeeee...hhhhheeee...eehhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -CHROMO_2  PDB: A:24-74 UniProt: 24-82               PROSITE (1)
                PROSITE (2) ------------------CHROMO_1  PDB: A:41-6------------- PROSITE (2)
                 Transcript ---------------------------------------------------- Transcript
                  1q3l A 23 EYAVEKIIDRRVRKGMVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASR 74
                                    32        42        52        62        72  

Chain P from PDB  Type:PROTEIN  Length:6
 aligned with H31_BOVIN | P68432 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:6
             H31_BOVIN    6 QTARKS 11
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author .ee... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                  1q3l P  5 QTARkS 10
                                | 
                                | 
                                9-MLZ

Chain P from PDB  Type:PROTEIN  Length:6
 aligned with H31_HUMAN | P68431 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:6
             H31_HUMAN    6 QTARKS 11
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author .ee... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                  1q3l P  5 QTARkS 10
                                | 
                                9-MLZ

Chain P from PDB  Type:PROTEIN  Length:6
 aligned with H31_MOUSE | P68433 from UniProtKB/Swiss-Prot  Length:136

    Alignment length:6
             H31_MOUSE    6 QTARKS 11
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author .ee... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                  1q3l P  5 QTARkS 10
                                | 
                                9-MLZ

   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  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Tudor (88)

(-) Gene Ontology  (67, 112)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (HP1_DROME | P05205)
molecular function
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    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:0042393    histone binding    Interacting selectively and non-covalently with a histone, any of a group of water-soluble proteins found in association with the DNA of eukaroytic chromosomes. They are involved in the condensation and coiling of chromosomes during cell division and have also been implicated in nonspecific suppression of gene activity.
    GO:0003729    mRNA binding    Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
    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:0000182    rDNA binding    Interacting selectively and non-covalently with DNA sequences encoding ribosomal RNA.
    GO:0003696    satellite DNA binding    Interacting selectively and non-covalently with satellite DNA, the many tandem repeats (identical or related) of a short basic repeating unit; many have a base composition or other property different from the genome average that allows them to be separated from the bulk (main band) genomic DNA.
biological process
    GO:0044026    DNA hypermethylation    An increase in the epigenetic methylation of cytosine and adenosine residues in DNA.
    GO:0006342    chromatin silencing    Repression of transcription by altering the structure of chromatin, e.g. by conversion of large regions of DNA into an inaccessible state often called heterochromatin.
    GO:0030702    chromatin silencing at centromere    Repression of transcription of centromeric DNA by altering the structure of chromatin.
    GO:0051276    chromosome organization    A process that is carried out at the cellular level that results in the assembly, arrangement of constituent parts, or disassembly of chromosomes, structures composed of a very long molecule of DNA and associated proteins that carries hereditary information. This term covers covalent modifications at the molecular level as well as spatial relationships among the major components of a chromosome.
    GO:0006343    establishment of chromatin silencing    The initial formation of a transcriptionally silent chromatin structure such as heterochromatin.
    GO:0016458    gene silencing    Any process carried out at the cellular level that results in either long-term transcriptional repression via action on chromatin structure or RNA mediated, post-transcriptional repression of gene expression.
    GO:0031507    heterochromatin assembly    The assembly of chromatin into heterochromatin, a compact and highly condensed form that is often, but not always, transcriptionally silent.
    GO:0034773    histone H4-K20 trimethylation    The modification of histone H4 by addition of three methyl groups to lysine at position 20 of the histone.
    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:0022008    neurogenesis    Generation of cells within the nervous system.
    GO:0033697    positive regulation of extent of heterochromatin assembly    Any process that increases the extent of heterochromatin formation; increases the size of a chromosomal region converted to heterochromatin.
    GO:1900111    positive regulation of histone H3-K9 dimethylation    Any process that activates or increases the frequency, rate or extent of histone H3-K9 dimethylation.
    GO:0090309    positive regulation of methylation-dependent chromatin silencing    Any process that increases the rate, frequency, or extent of the repression of transcription by methylation of DNA, leading to the formation of heterochromatin.
    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:0042981    regulation of apoptotic process    Any process that modulates the occurrence or rate of cell death by apoptotic process.
    GO:0031060    regulation of histone methylation    Any process that modulates the frequency, rate or extent of the covalent addition of methyl groups to histones.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0000723    telomere maintenance    Any process that contributes to the maintenance of proper telomeric length and structure by affecting and monitoring the activity of telomeric proteins, the length of telomeric DNA and the replication and repair of the DNA. These processes includes those that shorten, lengthen, replicate and repair the telomeric DNA sequences.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
cellular component
    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:0000781    chromosome, telomeric region    The terminal region of a linear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0000793    condensed chromosome    A highly compacted molecule of DNA and associated proteins resulting in a cytologically distinct structure.
    GO:0000780    condensed nuclear chromosome, centromeric region    The region of a condensed nuclear chromosome that includes the centromere and associated proteins, including the kinetochore. 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:0000791    euchromatin    A dispersed and relatively uncompacted form of chromatin.
    GO:0000792    heterochromatin    A compact and highly condensed form of chromatin.
    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: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:0005700    polytene chromosome    A type of chromosome in a polyploid cell, formed when multiple copies of homologous chromosomes are aligned side by side to give a giant chromosome in which distinct chromosome bands are readily visible.
    GO:0005704    polytene chromosome band    A stretch of densely packed chromatin along the polytene chromosome, visible as a morphologically distinct band.
    GO:0005701    polytene chromosome chromocenter    A region at which the centric regions of polytene chromosomes are joined together.
    GO:0005703    polytene chromosome puff    A swelling at a site along the length of a polytene chromosome, thought to be the site of active transcription.
    GO:0035012    polytene chromosome, telomeric region    The terminal region of a polytene chromosome.

Chain P   (H31_MOUSE | P68433)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0042393    histone binding    Interacting selectively and non-covalently with a histone, any of a group of water-soluble proteins found in association with the DNA of eukaroytic chromosomes. They are involved in the condensation and coiling of chromosomes during cell division and have also been implicated in nonspecific suppression of gene activity.
    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:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0032776    DNA methylation on cytosine    The covalent transfer of a methyl group to C-5 or N-4 of cytosine in a DNA molecule.
    GO:0006335    DNA replication-dependent nucleosome assembly    The formation of nucleosomes on newly replicated DNA, coupled to strand elongation.
    GO:0000183    chromatin silencing at rDNA    Repression of transcription of ribosomal DNA by altering the structure of chromatin.
    GO:0006334    nucleosome assembly    The aggregation, arrangement and bonding together of a nucleosome, the beadlike structural units of eukaryotic chromatin composed of histones and DNA.
    GO:0002230    positive regulation of defense response to virus by host    Any host process that results in the promotion of antiviral immune response mechanisms, thereby limiting viral replication.
    GO:0045815    positive regulation of gene expression, epigenetic    Any epigenetic process that activates or increases the rate of gene expression.
    GO:0051290    protein heterotetramerization    The formation of a protein heterotetramer, a macromolecular structure consisting of four noncovalently associated subunits, of which not all are identical.
    GO:0060968    regulation of gene silencing    Any process that modulates the rate, frequency, or extent of gene silencing, the transcriptional or post-transcriptional process carried out at the cellular level that results in long-term gene inactivation.
    GO:0098792    xenophagy    The macroautophagy process in which a region of cytoplasm containing an intracellular pathogen or some part of an intracellular pathogen (e.g. viral capsid) is enclosed in a double membrane bound autophagosome, which then fuses with the lysosome leading to degradation of the contents.
cellular component
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0000228    nuclear chromosome    A chromosome that encodes the nuclear genome and is found in the nucleus of a eukaryotic cell during the cell cycle phases when the nucleus is intact.
    GO:0000784    nuclear chromosome, telomeric region    The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0000788    nuclear nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA in the nucleus into higher order structures.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0000786    nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA into higher order structures.
    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:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.

Chain P   (H31_BOVIN | P68432)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0042393    histone binding    Interacting selectively and non-covalently with a histone, any of a group of water-soluble proteins found in association with the DNA of eukaroytic chromosomes. They are involved in the condensation and coiling of chromosomes during cell division and have also been implicated in nonspecific suppression of gene activity.
    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:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0006335    DNA replication-dependent nucleosome assembly    The formation of nucleosomes on newly replicated DNA, coupled to strand elongation.
    GO:0006334    nucleosome assembly    The aggregation, arrangement and bonding together of a nucleosome, the beadlike structural units of eukaryotic chromatin composed of histones and DNA.
    GO:0002230    positive regulation of defense response to virus by host    Any host process that results in the promotion of antiviral immune response mechanisms, thereby limiting viral replication.
    GO:0051290    protein heterotetramerization    The formation of a protein heterotetramer, a macromolecular structure consisting of four noncovalently associated subunits, of which not all are identical.
    GO:0060968    regulation of gene silencing    Any process that modulates the rate, frequency, or extent of gene silencing, the transcriptional or post-transcriptional process carried out at the cellular level that results in long-term gene inactivation.
    GO:0098792    xenophagy    The macroautophagy process in which a region of cytoplasm containing an intracellular pathogen or some part of an intracellular pathogen (e.g. viral capsid) is enclosed in a double membrane bound autophagosome, which then fuses with the lysosome leading to degradation of the contents.
cellular component
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0000228    nuclear chromosome    A chromosome that encodes the nuclear genome and is found in the nucleus of a eukaryotic cell during the cell cycle phases when the nucleus is intact.
    GO:0000788    nuclear nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA in the nucleus into higher order structures.
    GO:0000786    nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA into higher order structures.
    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:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.

Chain P   (H31_HUMAN | P68431)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0042393    histone binding    Interacting selectively and non-covalently with a histone, any of a group of water-soluble proteins found in association with the DNA of eukaroytic chromosomes. They are involved in the condensation and coiling of chromosomes during cell division and have also been implicated in nonspecific suppression of gene activity.
    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:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0006335    DNA replication-dependent nucleosome assembly    The formation of nucleosomes on newly replicated DNA, coupled to strand elongation.
    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:0044267    cellular protein metabolic process    The chemical reactions and pathways involving a specific protein, rather than of proteins in general, occurring at the level of an individual cell. Includes cellular protein modification.
    GO:0000183    chromatin silencing at rDNA    Repression of transcription of ribosomal DNA by altering the structure of chromatin.
    GO:0031047    gene silencing by RNA    Any process in which RNA molecules inactivate expression of target genes.
    GO:0045814    negative regulation of gene expression, epigenetic    Any epigenetic process that stops, prevents or reduces the rate of gene expression.
    GO:0006334    nucleosome assembly    The aggregation, arrangement and bonding together of a nucleosome, the beadlike structural units of eukaryotic chromatin composed of histones and DNA.
    GO:0002230    positive regulation of defense response to virus by host    Any host process that results in the promotion of antiviral immune response mechanisms, thereby limiting viral replication.
    GO:0045815    positive regulation of gene expression, epigenetic    Any epigenetic process that activates or increases the rate of gene expression.
    GO:0051290    protein heterotetramerization    The formation of a protein heterotetramer, a macromolecular structure consisting of four noncovalently associated subunits, of which not all are identical.
    GO:0060968    regulation of gene silencing    Any process that modulates the rate, frequency, or extent of gene silencing, the transcriptional or post-transcriptional process carried out at the cellular level that results in long-term gene inactivation.
    GO:0032200    telomere organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of telomeres, terminal regions of a linear chromosome that include the telomeric DNA repeats and associated proteins.
    GO:0098792    xenophagy    The macroautophagy process in which a region of cytoplasm containing an intracellular pathogen or some part of an intracellular pathogen (e.g. viral capsid) is enclosed in a double membrane bound autophagosome, which then fuses with the lysosome leading to degradation of the contents.
cellular component
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    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:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0000228    nuclear chromosome    A chromosome that encodes the nuclear genome and is found in the nucleus of a eukaryotic cell during the cell cycle phases when the nucleus is intact.
    GO:0000784    nuclear chromosome, telomeric region    The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0000788    nuclear nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA in the nucleus into higher order structures.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0000786    nucleosome    A complex comprised of DNA wound around a multisubunit core and associated proteins, which forms the primary packing unit of DNA into higher order structures.
    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:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.

 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
    MLZ  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
(no "Sites" information available for 1q3l)
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 1q3l)
 

(-) 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
  1q3l
    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
  H31_BOVIN | P68432
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
  H31_HUMAN | P68431
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
  H31_MOUSE | P68433
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
  HP1_DROME | P05205
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    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
  H31_BOVIN | P68432
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  H31_HUMAN | P68431
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  H31_MOUSE | P68433
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  HP1_DROME | P05205
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        H31_BOVIN | P684321cs9 1ct6 1guw
        H31_HUMAN | P684311cs9 1ct6 1guw 1o9s 2b2t 2b2u 2b2v 2b2w 2c1j 2c1n 2cv5 2kwj 2kwk 2l75 2lbm 2m0o 2ndf 2ndg 2oq6 2ot7 2ox0 2ri7 2uxn 2v89 2vpg 2x0l 3a1b 3afa 3avr 3ayw 3aze 3azf 3azg 3azh 3azi 3azj 3azk 3azl 3azm 3azn 3b95 3kmt 3kqi 3lqi 3lqj 3o34 3o35 3o37 3qj6 3rig 3riy 3sou 3sow 3u31 3u3d 3u4s 3u5n 3u5o 3u5p 3uee 3uef 3uig 3uii 3uik 3v43 3w96 3w97 3w98 3w99 3wa9 3waa 3wkj 3x1s 3x1t 3x1u 3x1v 3zg6 3zvy 4a0j 4a0n 4a7j 4bd3 4c1q 4f4u 4f56 4ft2 4ft4 4fwf 4hon 4i51 4l7x 4lk9 4lka 4llb 4lxl 4n4h 4qbq 4qbr 4qbs 4tn7 4u68 4up0 4uy4 4x3k 4y6l 4yhp 4yhz 4ym5 4ym6 4z0r 4z2m 5av5 5av6 5av8 5av9 5avb 5avc 5b24 5b2i 5b2j 5b31 5c11 5c13 5c3i 5cpi 5cpj 5cpk 5d6y 5dah 5fb0 5fb1 5ffv 5gse 5gsu 5gt0 5gt3 5gtc 5hjb 5hjc 5hjd 5hyn 5iql 5j3v 5j9s 5jhn 5jin 5jiy 5jj0 5jrg 5kjh 5kji 5kkl 5m5g 5svx 5svy 5t0k 5t0m 5t1g 5t1i 5t8r 5tbn 5tdr 5tdw 5v21 5v22 5va6
        H31_MOUSE | P684331cs9 1ct6 1guw 1u35 2v83 2w5z 2wp1 2xl3 4ezh 5b1l 5b1m 5ix1 5ix2
        HP1_DROME | P052051kna 1kne 3p7j

(-) Related Entries Specified in the PDB File

1kna 1kne 1pdq