An Information Portal to 105212 Biological Macromolecular Structures

Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords


    Polymeric Molecules

    Chain A,B
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 28795.9 
    Source Method genetically manipulated  
    Entity Name PCNA, CYCLIN 

  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B PCNA_HUMAN B2R897     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    82   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. 
    83   Regulation of Transcription Involved in G1/s Transition of Mitotic Cell Cycle  Any Process That Regulates Transcription Such That the Target Genes Are Involved in the Transition Between G1 and S Phase of the Mitotic Cell Cycle. 
    278   Mitotic Cell Cycle  Progression Through the Phases of the Mitotic Cell Cycle the Most Common Eukaryotic Cell Cycle Which Canonically Comprises Four Successive Phases Called G1 S G2 and M and Includes Replication of the Genome and the Subsequent Segregation of Chromosomes Into Daughter Cells. in Some Variant Cell Cycles Nuclear Replication or Nuclear Division May Not Be Followed by Cell Division or G1 and G2 Phases May Be Absent. 
    722   Telomere Maintenance Via Recombination  Any Recombinational Process That Contributes to the Maintenance of Proper Telomeric Length. 
    723   Telomere Maintenance  Any Process That Contributes to the Maintenance of Proper Telomeric Length and Structure by Affecting and Monitoring the Activity of Telomeric Proteins and the Length of Telomeric Dna. These Processes Includes Those That Shorten and Lengthen the Telomeric DNA Sequences. 
    6260   DNA Replication  The Cellular Metabolic Process in Which a Cell Duplicates One or More Molecules of Dna. DNA Replication Begins When Specific Sequences Known As Origins of Replication Are Recognized and Bound by Initiation Proteins and Ends When the Original DNA Molecule Has Been Completely Duplicated and the Copies Topologically Separated. the Unit of Replication Usually Corresponds to the Genome of the Cell an Organelle or a Virus. the Template For Replication Can Either Be an Existing DNA Molecule or Rna. 
    6271   DNA Strand Elongation Involved in DNA Replication  The Process in Which a DNA Strand Is Synthesized From Template DNA During Replication by the Action of Polymerases Which Add Nucleotides to the 3' End of the Nascent DNA Strand. 
    6272   Leading Strand Elongation  The Synthesis of DNA From a Template Strand in the 5' to 3' Direction; Leading Strand Elongation Is Continuous As It Proceeds in the Same Direction As the Replication Fork. 
    6275   Regulation of DNA Replication  Any Process That Modulates the Frequency Rate or Extent of DNA Replication. 
    6281   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. 
    6283   Transcription Coupled Nucleotide Excision Repair  The Nucleotide Excision Repair Process That Carries Out Preferential Repair of DNA Lesions On the Actively Transcribed Strand of the DNA Duplex. in Addition the Transcription Coupled Nucleotide Excision Repair Pathway Is Required For the Recognition and Repair of a Small Subset of Lesions That Are Not Recognized by the Global Genome Nucleotide Excision Repair Pathway. 
    6284   Base Excision Repair  In Base Excision Repair an Altered Base Is Removed by a DNA Glycosylase Enzyme Followed by Excision of the Resulting Sugar Phosphate. the Small Gap Left in the DNA Helix Is Filled in by the Sequential Action of DNA Polymerase and DNA Ligase. 
    6289   Nucleotide Excision Repair  A DNA Repair Process in Which a Small Region of the Strand Surrounding the Damage Is Removed From the DNA Helix As an Oligonucleotide. the Small Gap Left in the DNA Helix Is Filled in by the Sequential Action of DNA Polymerase and DNA Ligase. Nucleotide Excision Repair Recognizes a Wide Range of Substrates Including Damage Caused by Uv Irradiation (pyrimidine Dimers and 6 4 Photoproducts) and Chemicals (intrastrand Cross Links and Bulky Adducts). 
    6297   Nucleotide Excision Repair DNA Gap Filling  Repair of the Gap in the DNA Helix by DNA Polymerase and DNA Ligase After the Portion of the Strand Containing the Lesion Has Been Removed by Pyrimidine Dimer Repair Enzymes. 
    6298   Mismatch Repair  A System For the Correction of Errors in Which an Incorrect Base Which Cannot Form Hydrogen Bonds with the Corresponding Base in the Parent Strand Is Incorporated Into the Daughter Strand. the Mismatch Repair System Promotes Genomic Fidelity by Repairing Base Base Mismatches Insertion Deletion Loops and Heterologies Generated During DNA Replication and Recombination. 
    6974   Cellular Response to DNA Damage Stimulus  Any Process That Results in a Change in State or Activity of a Cell (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Stimulus Indicating Damage to Its DNA From Environmental Insults or Errors During Metabolism. 
    7507   Heart Development  The Process Whose Specific Outcome Is the Progression of the Heart Over Time From Its Formation to the Mature Structure. the Heart Is a Hollow Muscular Organ Which by Contracting Rhythmically Keeps Up the Circulation of the Blood. 
    8283   Cell Proliferation  The Multiplication or Reproduction of Cells Resulting in the Expansion of a Cell Population. 
    19985   Translesion Synthesis  The Replication of Damaged DNA by Synthesis Across a Lesion in the Template Strand; a Specialized DNA Polymerase or Replication Complex Inserts a Defined Nucleotide Across From the Lesion Which Allows DNA Synthesis to Continue Beyond the Lesion. This Process Can Be Mutagenic Depending On the Damaged Nucleotide and the Inserted Nucleotide. 
    30855   Epithelial Cell Differentiation  The Process in Which a Relatively Unspecialized Cell Acquires Specialized Features of an Epithelial Cell Any of the Cells Making Up an Epithelium. 
    32077   Positive Regulation of Deoxyribonuclease Activity  Any Process That Activates or Increases the Frequency Rate or Extent of Deoxyribonuclease Activity the Hydrolysis of Ester Linkages Within Deoxyribonucleic Acid. 
    32201   Telomere Maintenance Via Semi Conservative Replication  The Process in Which Telomeric DNA Is Synthesized Semi Conservatively by the Conventional Replication Machinery and Telomeric Accessory Factors As Part of Cell Cycle DNA Replication. 
    33993   Response to Lipid  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 Lipid Stimulus. 
    46686   Response to Cadmium Ion  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 Cadmium (cd) Ion Stimulus. 
    5634   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. 
    5654   Nucleoplasm  That Part of the Nuclear Content Other Than the Chromosomes or the Nucleolus. 
    5663   DNA Replication Factor C Complex  A Complex of Five Polypeptides in Eukaryotes and Two in Prokaryotes That Loads the DNA Polymerase Processivity Factor Proliferating Cell Nuclear Antigen (pcna) Onto DNA Thereby Permitting Processive DNA Synthesis Catalyzed by DNA Polymerase. 
    5730   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. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    5813   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. 
    43596   Nuclear Replication Fork  The Y Shaped Region of a Nuclear Replicating DNA Molecule Resulting From the Separation of the DNA Strands and in Which the Synthesis of New Strands Takes Place. Also Includes Associated Protein Complexes. 
    43626   Pcna Complex  A Protein Complex Composed of Three Identical Pcna Monomers Each Comprising Two Similar Domains Which Are Joined in a Head to Tail Arrangement to Form a Homotrimer. Forms a Ring Like Structure in Solution with a Central Hole Sufficiently Large to Accommodate the Double Helix of Dna. Originally Characterized As a DNA Sliding Clamp For Replicative DNA Polymerases and As an Essential Component of the Replisome and Has Also Been Shown to Be Involved in Other Processes Including Okazaki Fragment Processing DNA Repair Translesion DNA Synthesis DNA Methylation Chromatin Remodeling and Cell Cycle Regulation. 
    70062   Extracellular Vesicular Exosome  A Membrane Bounded Vesicle That Is Released Into the Extracellular Region by Fusion of the Limiting Endosomal Membrane of a Multivesicular Body with the Plasma Membrane. 
    70557   Pcna P21 Complex  A Protein Complex That Contains the Cyclin Dependent Protein Kinase Inhibitor P21waf1/cip1 Bound to Pcna; Formation of the Complex Inhibits DNA Replication. 
    701   Purine Specific Mismatch Base Pair DNA N Glycosylase Activity  Catalysis of the Removal of Purines Present in Mismatches Especially Opposite Oxidized Purines by Cleaving the N C1' Glycosidic Bond Between the Target Damaged DNA Base and the Deoxyribose Sugar. the Reaction Releases a Free Base and Leaves an Apurinic (ap) Site. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    5515   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). 
    30337   DNA Polymerase Processivity Factor Activity  An Enzyme Regulator Activity That Increases the Processivity of Polymerization by DNA Polymerase by Allowing the Polymerase to Move Rapidly Along DNA While Remaining Topologically Bound to It. 
    30971   Receptor Tyrosine Kinase Binding  Interacting Selectively and Non Covalently with a Receptor That Possesses Protein Tyrosine Kinase Activity. 
    32139   Dinucleotide Insertion or Deletion Binding  Interacting Selectively and Non Covalently with Double Stranded DNA Containing a Dinucleotide Insertion or Deletion. 
    32405   Mutlalpha Complex Binding  Interacting Selectively and Non Covalently with the Mismatch Repair Complex Mutlalpha. 
    42802   Identical Protein Binding  Interacting Selectively and Non Covalently with an Identical Protein or Proteins. 
    70182   DNA Polymerase Binding  Interacting Selectively and Non Covalently with a DNA Polymerase. 

  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Common Name Human
    Scientific Name Homo sapiens  
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    20 20pter-p12 5111     proliferating cell nuclear antigen PCNA    

    Single Nucleotide Polymorphisms (from LS-SNP database)

    SNP ID LsSnp Link dbSNP Link Chain PDB position Amino acid changes Secondary structure Solvent Accessibility Chromosome Chromosome position Ligand
    rs1050525 LS-SNP   dbSNP   A 39 S - > R Beta Ladder 12% (Intermediate) 20 5100328
    rs144468297 LS-SNP   dbSNP   A 65 N - > T Coil 85% (Exposed) 20 5100251
    rs141842220 LS-SNP   dbSNP   A 67 A - > T Beta Ladder 63% (Exposed) 20 5100246
    rs140522967 LS-SNP   dbSNP   A 223 S - > P Bend 75% (Exposed) 20 5096134
    rs142614281 LS-SNP   dbSNP   A 242 A - > V Turn 76% (Exposed) 20 5095990