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(-) Description

Title :  CRYSTAL STRUCTURE OF NURF55 IN COMPLEX WITH A H4 PEPTIDE
 
Authors :  C. U. Stirnimann, A. J. Nowak, C. W. Mueller
Date :  17 Nov 10  (Deposition) - 04 May 11  (Release) - 06 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.75
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Transcription, Repressor, Phosphoprotein, Wd-Repeat (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. J. Nowak, C. Alfieri, C. U. Stirnimann, V. Rybin, F. Baudin, N. Ly-Hartig, D. Lindner, C. W. Muller
Chromatin-Modifying Complex Component Nurf55/P55 Associates With Histones H3, H4 And Polycomb Repressive Complex 2 Subunit Su(Z)12 Through Partially Overlapping Binding Sites.
J. Biol. Chem. V. 286 23388 2011
PubMed-ID: 21550984  |  Reference-DOI: 10.1074/JBC.M110.207407

(-) Compounds

Molecule 1 - PROBABLE HISTONE-BINDING PROTEIN CAF1
    ChainsA
    EngineeredYES
    Expression SystemSPODOPTERA FRUGIPERDA
    Expression System Cell LineSF21
    Expression System CommonFALL ARMYWORM
    Expression System PlasmidPFASTBACHT
    Expression System Taxid7108
    Expression System Vector TypeBACULOVIRUS
    Organism CommonFRUIT FLY
    Organism ScientificDROSOPHILA MELANOGASTER
    Organism Taxid7227
    SynonymCHROMATIN ASSEMBLY FACTOR 1 P55 SUBUNIT, CAF-1 P55 SUBUNIT, NUCLEOSOME-REMODELING FACTOR 55 KDA SUBUNIT, NURF-55
 
Molecule 2 - HISTONE H4
    ChainsB
    FragmentRESIDUES 27-46
    Organism ScientificDROSOPHILA MELANOGASTER
    Organism Taxid7227
    SyntheticYES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric/Biological Unit (2, 5)
No.NameCountTypeFull Name
1PEG2Ligand/IonDI(HYDROXYETHYL)ETHER
2PG43Ligand/IonTETRAETHYLENE GLYCOL

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:185 , ASP A:202 , GLU A:235 , ASP A:252 , PHE A:325 , HOH A:2225 , HOH A:2263 , HOH A:2264 , HOH A:2390 , HOH A:2391BINDING SITE FOR RESIDUE PG4 A1416
2AC2SOFTWAREHOH A:2136BINDING SITE FOR RESIDUE PEG A1417
3AC3SOFTWARELYS A:313 , HIS A:315 , SER A:316 , GLU A:318BINDING SITE FOR RESIDUE PG4 A1418
4AC4SOFTWAREHIS A:240 , HIS A:243 , GLU A:290 , PHE A:291 , LEU A:307 , HOH A:2393BINDING SITE FOR RESIDUE PG4 A1419
5AC5SOFTWARELEU A:314 , HOH A:2358BINDING SITE FOR RESIDUE PEG A1420

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2XYI)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2XYI)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2XYI)

(-) PROSITE Motifs  (1, 3)

Asymmetric/Biological Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1WD_REPEATS_1PS00678 Trp-Asp (WD) repeats signature.CAF1_DROME197-211
293-307
337-351
  3A:197-211
A:293-307
A:337-351

(-) Exons   (0, 0)

(no "Exon" information available for 2XYI)

(-) 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:379
 aligned with CAF1_DROME | Q24572 from UniProtKB/Swiss-Prot  Length:430

    Alignment length:405
                                    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       310       320       330       340       350       360       370       380       390       400       410     
           CAF1_DROME    11 SFDDAVEERVINEEYKIWKKNTPFLYDLVMTHALEWPSLTAQWLPDVTKQDGKDYSVHRLILGTHTSDEQNHLLIASVQLPSEDAQFDGSHYDNEKGEFGGFGSVCGKIEIEIKINHEGEVNRARYMPQNACVIATKTPSSDVLVFDYTKHPSKPEPSGECQPDLRLRGHQKEGYGLSWNPNLNGYLLSASDDHTICLWDINATPKEHRVIDAKNIFTGHTAVVEDVAWHLLHESLFGSVADDQKLMIWDTRNNNTSKPSHTVDAHTAEVNCLSFNPYSEFILATGSADKTVALWDLRNLKLKLHSFESHKDEIFQVQWSPHNETILASSGTDRRLHVWDLSKIGEEQSTEDAEDGPPELLFIHGGHTAKISDFSWNPNEPWIICSVSEDNIMQVWQMAENVYND 415
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) -----------CAF1C_H4-bd-2xyiA06 A:22-91                                           ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2xyiA01 A:368-407                  -------- Pfam domains (1)
           Pfam domains (2) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2xyiA02 A:368-407                  -------- Pfam domains (2)
           Pfam domains (3) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2xyiA03 A:368-407                  -------- Pfam domains (3)
           Pfam domains (4) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2xyiA04 A:368-407                  -------- Pfam domains (4)
           Pfam domains (5) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD40-2xyiA05 A:368-407                  -------- Pfam domains (5)
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhheeeeeeee.......eee....ee......eeeeeeee.......eeeeeeeeee.--------------------------.eeeeeeeee.....eeeee..eeeeeeee.....eeeee.hhh.............eeee........eee......eeeee.....eeeee.........eee..eee......eeeeee......eeeeee...eeeeee..........eeee.....eeeeee......eeeeee...eeeeee........eeee.....eeeeee......eeeeee.....eeee.hhh....hhhhhhhh...eeee.......eeeeee......eeeeee...eeeeeeehhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------WD_REPEATS_1   ---------------------------------------------------------------------------------WD_REPEATS_1   -----------------------------WD_REPEATS_1   ---------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2xyi A  11 SFDDAVEERVINEEYKIWKKNTPFLYDLVMTHALEWPSLTAQWLPDVTKQDGKDYSVHRLILGTHTSDEQNHLLIASVQLP--------------------------KIEIEIKINHEGEVNRARYMPQNACVIATKTPSSDVLVFDYTKHPSKPEPSGECQPDLRLRGHQKEGYGLSWNPNLNGYLLSASDDHTICLWDINATPKEHRVIDAKNIFTGHTAVVEDVAWHLLHESLFGSVADDQKLMIWDTRNNNTSKPSHTVDAHTAEVNCLSFNPYSEFILATGSADKTVALWDLRNLKLKLHSFESHKDEIFQVQWSPHNETILASSGTDRRLHVWDLSKIGEEQSTEDAEDGPPELLFIHGGHTAKISDFSWNPNEPWIICSVSEDNIMQVWQMAENVYND 415
                                    20        30        40        50        60        70        80        90|        -         -       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410     
                                                                                                           91                        118                                                                                                                                                                                                                                                                                                         

Chain B from PDB  Type:PROTEIN  Length:14
 aligned with H4_DROME | P84040 from UniProtKB/Swiss-Prot  Length:103

    Alignment length:14
                                    40    
             H4_DROME    31 TKPAIRRLARRGGV  44
               SCOP domains -------------- SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains Histone-2xyiB0 Pfam domains
         Sec.struct. author hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -------------- PROSITE
                 Transcript -------------- Transcript
                 2xyi B  30 TKPAIRRLARRGGV  43
                                    39    

   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  (0, 0)

(no "SCOP Domain" information available for 2XYI)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2XYI)

(-) Pfam Domains  (3, 7)

Asymmetric/Biological Unit
(-)
Family: WD40 (64)
1aWD40-2xyiA01A:368-407
1bWD40-2xyiA02A:368-407
1cWD40-2xyiA03A:368-407
1dWD40-2xyiA04A:368-407
1eWD40-2xyiA05A:368-407
(-)
Clan: Histone (49)

(-) Gene Ontology  (57, 60)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CAF1_DROME | Q24572)
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:0035035    histone acetyltransferase binding    Interacting selectively and non-covalently with the enzyme histone acetyltransferase.
    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:0042826    histone deacetylase binding    Interacting selectively and non-covalently with the enzyme histone deacetylase.
    GO:0042054    histone methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + histone = S-adenosyl-L-homocysteine + methyl-histone. Histone methylation generally occurs on either an arginine or lysine residue.
    GO:0046976    histone methyltransferase activity (H3-K27 specific)    Catalysis of the reaction: S-adenosyl-L-methionine + histone H3 L-lysine (position 27) = S-adenosyl-L-homocysteine + histone H3 N6-methyl-L-lysine (position 27). This reaction is the addition of a methyl group onto lysine at position 27 of the histone H3 protein.
    GO:0046974    histone methyltransferase activity (H3-K9 specific)    Catalysis of the reaction: S-adenosyl-L-methionine + histone H3 L-lysine (position 9) = S-adenosyl-L-homocysteine + histone H3 N6-methyl-L-lysine (position 9). This reaction is the addition of a methyl group onto lysine at position 9 of the histone H3 protein.
    GO:0031491    nucleosome binding    Interacting selectively and non-covalently with a 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:0070615    nucleosome-dependent ATPase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate. This reaction requires the presence of one or more nucleosomes.
    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:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
biological process
    GO:0006281    DNA repair    The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
    GO:0006335    DNA replication-dependent nucleosome assembly    The formation of nucleosomes on newly replicated DNA, coupled to strand elongation.
    GO:0031497    chromatin assembly    The assembly of DNA, histone proteins, other associated proteins, and sometimes RNA, into chromatin structure, beginning with the formation of the basic unit, the nucleosome, followed by organization of the nucleosomes into higher order structures, ultimately giving rise to a complex organization of specific domains within the nucleus.
    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:0048813    dendrite morphogenesis    The process in which the anatomical structures of a dendrite are generated and organized. A dendrite is a freely branching protoplasmic process of a nerve cell.
    GO:0007307    eggshell chorion gene amplification    Amplification by up to 60-fold of the loci containing the chorion gene clusters. Amplification is necessary for the rapid synthesis of chorion proteins by the follicle cells, and occurs by repeated firing of one or more origins located within each gene cluster.
    GO:0070734    histone H3-K27 methylation    The modification of histone H3 by addition of one or more methyl groups to lysine at position 27 of the histone.
    GO:0051567    histone H3-K9 methylation    The modification of histone H3 by addition of one or more methyl groups to lysine at position 9 of the histone.
    GO:0016573    histone acetylation    The modification of a histone by the addition of an acetyl group.
    GO:0016571    histone methylation    The modification of histones by addition of methyl groups.
    GO:0000281    mitotic cytokinesis    A cell cycle process that results in the division of the cytoplasm of a cell after mitosis, resulting in the separation of the original cell into two daughter cells.
    GO:0007517    muscle organ development    The process whose specific outcome is the progression of the muscle over time, from its formation to the mature structure. The muscle is an organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work.
    GO:0000122    negative regulation of transcription from RNA polymerase II promoter    Any process that stops, prevents, or reduces the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0048666    neuron development    The process whose specific outcome is the progression of a neuron over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell.
    GO:0048812    neuron projection morphogenesis    The process in which the anatomical structures of a neuron projection are generated and organized. A neuron projection is any process extending from a neural cell, such as axons or dendrites.
    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:0042766    nucleosome mobilization    The movement of nucleosomes along a DNA fragment.
    GO:0016584    nucleosome positioning    Ordering of successions of nucleosomes into regular arrays so that nucleosomes are positioned at defined distances from one another.
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:0061085    regulation of histone H3-K27 methylation    Any process that modulates the rate, frequency, or extent of histone H3-K27 methylation. Histone H3-K27 methylation is the modification of histone H3 by addition of a methyl group to lysine at position 27 of the histone.
    GO:0007346    regulation of mitotic cell cycle    Any process that modulates the rate or extent of progress through the mitotic cell cycle.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0007379    segment specification    The process in which segments assume individual identities; exemplified in insects by the actions of the products of the homeotic genes.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
cellular component
    GO:0016590    ACF complex    An ISWI complex that contains an ATPase subunit of the ISWI family (SNF2H in mammals, Isw2 in S. cerevisiae), an ACF1 homolog, and generally no other subunits, though Xenopus is an exception with a third non-conserved subunit. ACF plays roles in regulation of RNA polymerase II transcription and in DNA replication and repair.
    GO:0033186    CAF-1 complex    A conserved heterotrimeric protein complex that promotes histone H3 and H4 deposition onto newly synthesized DNA during replication or DNA repair; specifically facilitates replication-dependent nucleosome assembly with the major histone H3 (H3.1). In many species the CAF-1 subunits are designated p150, p60, and p48.
    GO:0035098    ESC/E(Z) complex    A multimeric protein complex that can methylate lysine-27 and lysine-9 residues of histone H3. In Drosophila the core subunits of the complex include ESC, E(Z), CAF1 (NURF-55) and SU(Z)12. In mammals the core subunits of the complex include EED, EZH2, SUZ12 and RBBP4.
    GO:0031523    Myb complex    A multisubunit complex consisting of Myb and other proteins that regulates site specific DNA replication, gene amplification and transcriptional repression.
    GO:0016589    NURF complex    An ISWI complex that contains an ATPase subunit of the ISWI family (SNF2L in mammals), a NURF301 homolog (BPTF in humans), and additional subunits, though the composition of these additional subunits varies slightly with species. NURF is involved in regulation of transcription from TRNA polymerase II promoters.
    GO:0016581    NuRD complex    An approximately 2 MDa multi-subunit complex that exhibits ATP-dependent chromatin remodeling activity in addition to histone deacetylase (HDAC) activity, and has been shown to establish transcriptional repression of a number of target genes in vertebrates, invertebrates and fungi. Amongst its subunits, the NuRD complex contains histone deacetylases, histone binding proteins and Mi-2-like proteins.
    GO:0070822    Sin3-type complex    Any of a number of evolutionarily conserved histone deacetylase complexes (HDACs) containing a core consisting of a paired amphipathic helix motif protein (e.g. Sin3p in S. cerevisiae, Pst1 in S. pombe or Sin3A in mammals) at least one class I histone deacetylase (e.g. Rpd3p in S. cerevisiae, Clr6 in S. pombe, or HDAC1 and HDAC2 in mammals), and at least one WD40 repeat protein (e.g. Ume1p in S. cerevisiae, Prw1 in S. pombe, or RbAp46 and RbAp48 in mammals). These complexes also contain a variable number of other proteins that direct histone binding, DNA binding, or add other functionality to the complex.
    GO:0035097    histone methyltransferase complex    A multimeric complex that is able to catalyze the addition of methyl groups to histone proteins.
    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: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:0005667    transcription factor complex    A protein complex that is capable of associating with DNA by direct binding, or via other DNA-binding proteins or complexes, and regulating transcription.

Chain B   (H4_DROME | P84040)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    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:0006352    DNA-templated transcription, initiation    Any process involved in the assembly of the RNA polymerase preinitiation complex (PIC) at the core promoter region of a DNA template, resulting in the subsequent synthesis of RNA from that promoter. The initiation phase includes PIC assembly and the formation of the first few bonds in the RNA chain, including abortive initiation, which occurs when the first few nucleotides are repeatedly synthesized and then released. The initiation phase ends just before and does not include promoter clearance, or release, which is the transition between the initiation and elongation phases of transcription.
    GO:0051298    centrosome duplication    The replication of a centrosome, a structure comprised of a pair of centrioles and peri-centriolar material from which a microtubule spindle apparatus is organized.
    GO:0006333    chromatin assembly or disassembly    The formation or destruction of chromatin structures.
    GO:0016321    female meiosis chromosome segregation    The cell cycle process in which genetic material, in the form of chromosomes, is organized and then physically separated and apportioned to two or more sets during the meiotic cell cycle in a female.
    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.
cellular component
    GO:0035059    RCAF complex    A protein complex that facilitates the assembly of nucleosomes on to newly synthesized DNA. In Drosophila, the complex comprises ASF1 and histones H3 and H4.
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    GO:0005811    lipid droplet    An intracellular non-membrane-bounded organelle comprising a matrix of coalesced lipids surrounded by a phospholipid monolayer. May include associated proteins.
    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: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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CAF1_DROME | Q245722yb8 2yba 3c99 3c9c
        H4_DROME | P840402nqb 2pyo 3c9c 4qlc 4uuz 4x23

(-) Related Entries Specified in the PDB File

2pyo DROSOPHILA NUCLEOSOME CORE
3c99 STRUCTURAL BASIS OF HISTONE H4 RECOGNITION BY P55
3c9c STRUCTURAL BASIS OF HISTONE H4 RECOGNITION BY P55