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Protein

Histone H3.3C

Gene

h3f3c

Organism
Xenopus laevis (African clawed frog)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

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.

GO - Molecular functioni

Keywordsi

Molecular functionDNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Histone H3.3C
Gene namesi
Name:h3f3c
OrganismiXenopus laevis (African clawed frog)
Taxonomic identifieri8355 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Chromosome, Nucleosome core, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedCurated
ChainiPRO_00002212662 – 136Histone H3.3CAdd BLAST135

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei3Asymmetric dimethylarginine; by PRMT6By similarity1
Modified residuei4Phosphothreonine; by HASPINBy similarity1
Modified residuei5Allysine; alternateBy similarity1
Modified residuei5N6,N6,N6-trimethyllysine; alternateBy similarity1
Modified residuei5N6,N6-dimethyllysine; alternateBy similarity1
Modified residuei5N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei5N6-acetyllysine; alternateBy similarity1
Modified residuei5N6-methyllysine; alternateBy similarity1
Modified residuei7Phosphothreonine; by PKCBy similarity1
Modified residuei10N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei10N6-methylated lysineBy similarity1
Modified residuei11ADP-ribosylserine; alternateBy similarity1
Modified residuei11Phosphoserine; alternate; by AURKB, AURKC, RPS6KA3, RPS6KA4 and RPS6KA5By similarity1
Modified residuei12Phosphothreonine; by PKCBy similarity1
Modified residuei15N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei15N6-acetyllysineBy similarity1
Modified residuei18Asymmetric dimethylarginineBy similarity1
Modified residuei19N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei19N6-acetyllysine; alternateBy similarity1
Modified residuei19N6-butyryllysine; alternateBy similarity1
Modified residuei19N6-methylated lysine; alternateBy similarity1
Modified residuei24N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei24N6-acetyllysineBy similarity1
Modified residuei24N6-butyryllysine; alternateBy similarity1
Modified residuei28N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei28N6-acetyllysine; alternateBy similarity1
Modified residuei28N6-methylated lysine; alternateBy similarity1
Modified residuei37N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei37N6-acetyllysine; alternateBy similarity1
Modified residuei37N6-methylated lysine; alternateBy similarity1
Modified residuei42PhosphotyrosineBy similarity1
Modified residuei57N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei57N6-succinyllysine; alternateBy similarity1
Modified residuei58PhosphoserineBy similarity1
Modified residuei65N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei65N6-methylated lysineBy similarity1
Modified residuei80N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei80N6-methylated lysineBy similarity1
Modified residuei80N6-succinyllysine; alternateBy similarity1
Modified residuei81PhosphothreonineBy similarity1
Modified residuei116N6-acetyllysineBy similarity1
Modified residuei123N6-(2-hydroxyisobutyryl)lysine; alternateBy similarity1
Modified residuei123N6-acetyllysine; alternateBy similarity1
Modified residuei123N6-methylated lysine; alternateBy similarity1

Post-translational modificationi

Acetylation is generally linked to gene activation. Acetylation on Lys-19 (H3K18ac) and Lys-24 (H3K24ac) favors methylation at Arg-18 (H3R17me). Acetylation at Lys-123 (H3K122ac) by EP300/p300 plays a central role in chromatin structure: localizes at the surface of the histone octamer and stimulates transcription, possibly by promoting nucleosome instability (By similarity).By similarity
Asymmetric dimethylation at Arg-18 (H3R17me2a) is linked to gene activation. Asymmetric dimethylation at Arg-3 (H3R2me2a) by PRMT6 is linked to gene repression and is mutually exclusive with H3 Lys-5 methylation (H3K4me2 and H3K4me3). H3R2me2a is present at the 3' of genes regardless of their transcription state and is enriched on inactive promoters, while it is absent on active promoters (By similarity).By similarity
Methylation at Lys-5 (H3K4me) and Lys-80 (H3K79me) are linked to gene activation. Methylation at Lys-5 (H3K4me) facilitates subsequent acetylation of H3 and H4. Methylation at Lys-80 (H3K79me) is associated with DNA double-strand break (DSB) responses and is a specific target for TP53BP1. Methylation at Lys-10 (H3K9me) and Lys-28 (H3K27me) are linked to gene repression. Methylation at Lys-10 (H3K9me) is a specific target for HP1 proteins (CBX1, CBX3 and CBX5) and prevents subsequent phosphorylation at Ser-11 (H3S10ph) and acetylation of H3 and H4. Methylation at Lys-5 (H3K4me) and Lys-80 (H3K79me) require preliminary monoubiquitination of H2B at 'Lys-120' (By similarity).By similarity
Phosphorylated at Thr-4 (H3T3ph) by HASPIN during prophase and dephosphorylated during anaphase. Phosphorylation at Ser-11 (H3S10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. In addition phosphorylation at Ser-11 (H3S10ph) by rps6ka4 and rps6ka5 is important during interphase because it enables the transcription of genes following external stimulation, like mitogens, stress, growth factors or UV irradiation and result in the activation of genes, such as c-fos and c-jun. Phosphorylation at Ser-11 (H3S10ph), which is linked to gene activation, prevents methylation at Lys-10 (H3K9me) but facilitates acetylation of H3 and H4. Phosphorylation at Ser-11 (H3S10ph) by aurkb mediates the dissociation of HP1 proteins (cbx1, cbx3 and cbx5) from heterochromatin. Phosphorylation at Ser-11 (H3S10ph) is also an essential regulatory mechanism for neoplastic cell transformation. Phosphorylation at Thr-7 (H3T6ph) by prkcb is a specific tag for epigenetic transcriptional activation that prevents demethylation of Lys-5 (H3K4me) by lsd1/kdm1a. At centromeres, specifically phosphorylated at Thr-12 (H3T11ph) from prophase to early anaphase, by dapk3 and pkn1. Phosphorylation at Thr-12 (H3T11ph) by pkn1 is a specific tag for epigenetic transcriptional activation that promotes demethylation of Lys-10 (H3K9me) by kdm4c/jmjd2c. Phosphorylation at Tyr-42 (H3Y41ph) by jak2 promotes exclusion of cbx5 (HP1 alpha) from chromatin (By similarity).By similarity
Lysine deamination at Lys-5 (H3K4all) to form allysine only takes place on H3K4me3 and results in gene repression.By similarity
Butyrylation of histones marks active promoters and competes with histone acetylation. It is present during late spermatogenesis.By similarity
Succinylation at Lys-80 (H3K79succ) by KAT2A takes place with a maximum frequency around the transcription start sites of genes. It gives a specific tag for epigenetic transcription activation.By similarity

Keywords - PTMi

Acetylation, ADP-ribosylation, Hydroxylation, Methylation, Phosphoprotein, Ubl conjugation

Proteomic databases

PRIDEiP02302

Interactioni

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.2 Publications

GO - Molecular functioni

Protein-protein interaction databases

DIPiDIP-39145N
IntActiP02302, 1 interactor

Structurei

Secondary structure

1136
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi23 – 25Combined sources3
Helixi46 – 55Combined sources10
Helixi65 – 77Combined sources13
Beta strandi80 – 82Combined sources3
Helixi87 – 114Combined sources28
Beta strandi118 – 120Combined sources3
Helixi122 – 132Combined sources11

3D structure databases

ProteinModelPortaliP02302
SMRiP02302
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP02302

Family & Domainsi

Sequence similaritiesi

Belongs to the histone H3 family.Curated

Phylogenomic databases

HOVERGENiHBG001172

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
PS00322 HISTONE_H3_1, 1 hit
PS00959 HISTONE_H3_2, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P02302-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MARTKQTARK STGGKAPRKQ LVTKAAKKCA PATGGVKKPH RYRPGTVALR
60 70 80 90 100
EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQRSAV MALQEASEAY
110 120 130
LVALFEDTNL CAIHAKRVTI MPKDIQLARR IRGERA
Length:136
Mass (Da):15,487
Last modified:January 23, 2007 - v2
Checksum:iFE1B7E45DBBC7D95
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J00982 Genomic DNA No translation available.
J00984 Genomic DNA No translation available.
PIRiA02634 HSXL32

Similar proteinsi

Entry informationi

Entry nameiH3C_XENLA
AccessioniPrimary (citable) accession number: P02302
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: January 23, 2007
Last modified: June 20, 2018
This is version 116 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

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