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Entry version 105 (16 Oct 2019)
Sequence version 1 (24 May 2005)
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Protein

Histone H3.3 type c

Gene

H3c

Organism
Dictyostelium discoideum (Slime mold)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.1 Publication

Caution

To ensure consistency between histone entries, we follow the 'Brno' nomenclature for histone modifications, with positions referring to those used in the literature for the 'closest' model organism. Due to slight variations in histone sequences between organisms and to the presence of initiator methionine in UniProtKB/Swiss-Prot sequences, the actual positions of modified amino acids in the sequence generally differ. In this entry the following conventions are used: H3K4me1/2/3 = mono-, di- and trimethylated Lys-5; H3K9ac = acetylated Lys-10; H3K9me1 = monomethylated Lys-10; H3S10ph = phosphorylated Ser-11; H3K14ac = acetylated Lys-15; H3K14me2 = dimethylated Lys-15; H3K18ac = acetylated Lys-19; H3K18me1 = monomethylated Lys-19; H3K23ac = acetylated Lys-24; H3K23me1 = monomethylated Lys-24; H3K27ac = acetylated Lys-28; H3K27me1/2/3 = mono-, di- and trimethylated Lys-28; H3K36ac = acetylated Lys-37; H3K36me1/2/3 = mono-, di- and trimethylated Lys-37; H3K56ac = acetylated Lys-57; H3K64ac = acetylated Lys-68; H3K79me1/2/3 = mono-, di- and trimethylated Lys-80.Curated

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionDNA-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-DDI-1266695 Interleukin-7 signaling
R-DDI-2299718 Condensation of Prophase Chromosomes
R-DDI-2559580 Oxidative Stress Induced Senescence
R-DDI-3214841 PKMTs methylate histone lysines
R-DDI-3214842 HDMs demethylate histones
R-DDI-3214847 HATs acetylate histones
R-DDI-3214858 RMTs methylate histone arginines
R-DDI-3247509 Chromatin modifying enzymes
R-DDI-73772 RNA Polymerase I Promoter Escape
R-DDI-983231 Factors involved in megakaryocyte development and platelet production

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Histone H3.3 type c
Alternative name(s):
Histone 3, variant 3 type c
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:H3c
ORF Names:DDB_G0271092
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiDictyostelium discoideum (Slime mold)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri44689 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaAmoebozoaEvoseaEumycetozoaDictyostelidsDictyostelialesDictyosteliaceaeDictyostelium
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002195 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componentsi: Chromosome 1, Unassembled WGS sequence

Organism-specific databases

Dictyostelium discoideum online informatics resource

More...
dictyBasei
DDB_G0271092 H3c

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

  • nucleosome Source: UniProtKB-KW
  • nucleus Source: dictyBase

Keywords - Cellular componenti

Chromosome, Nucleosome core, Nucleus

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemovedBy similarity
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003891622 – 136Histone H3.3 type cAdd BLAST135

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei5N6,N6,N6-trimethyllysine; by set1; alternate1 Publication1
Modified residuei5N6,N6-dimethyllysine; by set1; alternate1 Publication1
Modified residuei5N6-acetyllysine; alternateBy similarity1
Modified residuei5N6-methyllysine; by set1; alternate1 Publication1
Modified residuei10N6,N6,N6-trimethyllysine; alternateBy similarity1
Modified residuei10N6,N6-dimethyllysine; alternate1 Publication1
Modified residuei10N6-acetyllysine; alternateBy similarity1
Modified residuei10N6-methyllysine; alternateBy similarity1
Modified residuei11PhosphoserineBy similarity1
Modified residuei15N6-acetyllysineBy similarity1
Modified residuei19N6-acetyllysine; alternateBy similarity1
Modified residuei19N6-methyllysine; alternateBy similarity1
Modified residuei24N6-acetyllysine; alternateBy similarity1
Modified residuei24N6-methyllysine; alternateBy similarity1
Modified residuei37N6,N6,N6-trimethyllysine; alternateBy similarity1
Modified residuei37N6,N6-dimethyllysine; alternateBy similarity1
Modified residuei37N6-acetyllysine; alternateBy similarity1
Modified residuei37N6-methyllysine; alternateBy similarity1
Modified residuei57N6-acetyllysineBy similarity1
Modified residuei80N6,N6,N6-trimethyllysine; alternateBy similarity1
Modified residuei80N6,N6-dimethyllysine; alternate1 Publication1
Modified residuei80N6-methyllysine; alternateBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Acetylation is generally linked to gene activation.By similarity
Different methylation states of H3K4 mark distinct developmental phases. H3K4me2 is associated with euchromatic regions. H3K4me3 is a mark of active chromatin. set1 is responsible for all mono-, di- and tri-methylation of H3K4. H3K4me facilitates subsequent acetylation of H3 and H4. Methylation at H3K9 is linked to gene repression (By similarity).By similarity
H3S10ph, which is linked to gene activation, prevents methylation at H3K9 but facilitates acetylation of H3 and H4.By similarity

Keywords - PTMi

Acetylation, Methylation, Phosphoprotein

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q55BP0

PRoteomics IDEntifications database

More...
PRIDEi
Q55BP0

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q55BP0

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Levels relative to total cellular protein, increase as differentiation proceeds towards the final culminant. The levels of tri-methylation of Lys-5 (H3K4me3) diminish considerably during the process of differentiation. In contrast, the level of mono-methylation of Lys-5 (H3K4me1) becomes significantly enhanced during differentiation. There is a slight dip in di-methylation of Lys-5 (H3K4me2) around the time of aggregation and the level of this mark again dips during the final stages of spore formation. The levels of H3K4me1 and H3K4me2 rise during the inactivation of rasG that occurs after the onset of differentiation. The level of dimethylation at this locus peaks coinciding with the loss of H3K4me3. This enrichment of dimethyl H3K4 declines as the rise in the level of H3K4me1 continues. H3K79me2 (di-methylation of Lys-80) is expressed during the whole life cycle.2 Publications

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA (By similarity).

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
44689.DDB0231141

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q55BP0

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the histone H3 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1745 Eukaryota
COG2036 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q55BP0

KEGG Orthology (KO)

More...
KOi
K11253

Identification of Orthologs from Complete Genome Data

More...
OMAi
GDANLCT

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q55BP0

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.20.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009072 Histone-fold
IPR007125 Histone_H2A/H2B/H3
IPR000164 Histone_H3/CENP-A

The PANTHER Classification System

More...
PANTHERi
PTHR11426 PTHR11426, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00125 Histone, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00622 HISTONEH3

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00428 H3, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47113 SSF47113, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00959 HISTONE_H3_2, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q55BP0-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MARTKQTARK STGAKVPRKH LSSKSSFPSK PVNEVLKKTH RFRPGTVALR
60 70 80 90 100
EIRRYQKSSD LLIKKLPFQR LVREIAQEFK TDLRFQAAAI EALQEATEAY
110 120 130
LVGLFEDTNL CAIHAKRVTI MVKDIQLARR IRGERA
Length:136
Mass (Da):15,601
Last modified:May 24, 2005 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i93BA28E20910424A
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AAFI02000005 Genomic DNA Translation: EAL72896.1

NCBI Reference Sequences

More...
RefSeqi
XP_646791.1, XM_641699.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
EAL72896; EAL72896; DDB_G0271092

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
8617764

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ddi:DDB_G0271092

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AAFI02000005 Genomic DNA Translation: EAL72896.1
RefSeqiXP_646791.1, XM_641699.1

3D structure databases

SMRiQ55BP0
ModBaseiSearch...

Protein-protein interaction databases

STRINGi44689.DDB0231141

PTM databases

iPTMnetiQ55BP0

Proteomic databases

PaxDbiQ55BP0
PRIDEiQ55BP0

Genome annotation databases

EnsemblProtistsiEAL72896; EAL72896; DDB_G0271092
GeneIDi8617764
KEGGiddi:DDB_G0271092

Organism-specific databases

dictyBaseiDDB_G0271092 H3c

Phylogenomic databases

eggNOGiKOG1745 Eukaryota
COG2036 LUCA
InParanoidiQ55BP0
KOiK11253
OMAiGDANLCT
PhylomeDBiQ55BP0

Enzyme and pathway databases

ReactomeiR-DDI-1266695 Interleukin-7 signaling
R-DDI-2299718 Condensation of Prophase Chromosomes
R-DDI-2559580 Oxidative Stress Induced Senescence
R-DDI-3214841 PKMTs methylate histone lysines
R-DDI-3214842 HDMs demethylate histones
R-DDI-3214847 HATs acetylate histones
R-DDI-3214858 RMTs methylate histone arginines
R-DDI-3247509 Chromatin modifying enzymes
R-DDI-73772 RNA Polymerase I Promoter Escape
R-DDI-983231 Factors involved in megakaryocyte development and platelet production

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q55BP0

Family and domain databases

Gene3Di1.10.20.10, 1 hit
InterProiView protein in InterPro
IPR009072 Histone-fold
IPR007125 Histone_H2A/H2B/H3
IPR000164 Histone_H3/CENP-A
PANTHERiPTHR11426 PTHR11426, 1 hit
PfamiView protein in Pfam
PF00125 Histone, 1 hit
PRINTSiPR00622 HISTONEH3
SMARTiView protein in SMART
SM00428 H3, 1 hit
SUPFAMiSSF47113 SSF47113, 1 hit
PROSITEiView protein in PROSITE
PS00959 HISTONE_H3_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiH33C_DICDI
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q55BP0
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 24, 2009
Last sequence update: May 24, 2005
Last modified: October 16, 2019
This is version 105 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
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