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UniProtKB/Swiss-Prot entry Q6NXT2


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name H3L_HUMAN
Primary accession number Q6NXT2
Secondary accession numbers None
Integrated into Swiss-Prot on October 17, 2006
Sequence was last modified on January 23, 2007 (Sequence version 3)
Annotations were last modified on    June 16, 2009 (Entry version 47)
Name and origin of the protein
Protein name Histone H3-like
Synonyms None
Gene name None
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 2: Evidence at transcript level;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1038/nature04569; PubMed=16541075 [NCBI, ExPASy, EBI, Israel, Japan]
Scherer S.E., Muzny D.M., Buhay C.J., Chen R., Cree A., Ding Y., Dugan-Rocha S., Gill R., Gunaratne P., Harris R.A., Hawes A.C., Hernandez J., Hodgson A.V., Hume J., Jackson A., Khan Z.M., Kovar-Smith C., Lewis L.R., Lozado R.J., Metzker M.L., Milosavljevic A., Miner G.R., Montgomery K.T., Morgan M.B., Nazareth L.V., Scott G., Sodergren E., Song X.-Z., Steffen D., Lovering R.C., Wheeler D.A., Worley K.C., Yuan Y., Zhang Z., Adams C.Q., Ansari-Lari M.A., Ayele M., Brown M.J., Chen G., Chen Z., Clerc-Blankenburg K.P., Davis C., Delgado O., Dinh H.H., Draper H., Gonzalez-Garay M.L., Havlak P., Jackson L.R., Jacob L.S., Kelly S.H., Li L., Li Z., Liu J., Liu W., Lu J., Maheshwari M., Nguyen B.-V., Okwuonu G.O., Pasternak S., Perez L.M., Plopper F.J.H., Santibanez J., Shen H., Tabor P.E., Verduzco D., Waldron L., Wang Q., Williams G.A., Zhang J., Zhou J., Allen C.C., Amin A.G., Anyalebechi V., Bailey M., Barbaria J.A., Bimage K.E., Bryant N.P., Burch P.E., Burkett C.E., Burrell K.L., Calderon E., Cardenas V., Carter K., Casias K., Cavazos I., Cavazos S.R., Ceasar H., Chacko J., Chan S.N., Chavez D., Christopoulos C., Chu J., Cockrell R., Cox C.D., Dang M., Dathorne S.R., David R., Davis C.M., Davy-Carroll L., Deshazo D.R., Donlin J.E., D'Souza L., Eaves K.A., Egan A., Emery-Cohen A.J., Escotto M., Flagg N., Forbes L.D., Gabisi A.M., Garza M., Hamilton C., Henderson N., Hernandez O., Hines S., Hogues M.E., Huang M., Idlebird D.G., Johnson R., Jolivet A., Jones S., Kagan R., King L.M., Leal B., Lebow H., Lee S., LeVan J.M., Lewis L.C., London P., Lorensuhewa L.M., Loulseged H., Lovett D.A., Lucier A., Lucier R.L., Ma J., Madu R.C., Mapua P., Martindale A.D., Martinez E., Massey E., Mawhiney S., Meador M.G., Mendez S., Mercado C., Mercado I.C., Merritt C.E., Miner Z.L., Minja E., Mitchell T., Mohabbat F., Mohabbat K., Montgomery B., Moore N., Morris S., Munidasa M., Ngo R.N., Nguyen N.B., Nickerson E., Nwaokelemeh O.O., Nwokenkwo S., Obregon M., Oguh M., Oragunye N., Oviedo R.J., Parish B.J., Parker D.N., Parrish J., Parks K.L., Paul H.A., Payton B.A., Perez A., Perrin W., Pickens A., Primus E.L., Pu L.-L., Puazo M., Quiles M.M., Quiroz J.B., Rabata D., Reeves K., Ruiz S.J., Shao H., Sisson I., Sonaike T., Sorelle R.P., Sutton A.E., Svatek A.F., Svetz L.A., Tamerisa K.S., Taylor T.R., Teague B., Thomas N., Thorn R.D., Trejos Z.Y., Trevino B.K., Ukegbu O.N., Urban J.B., Vasquez L.I., Vera V.A., Villasana D.M., Wang L., Ward-Moore S., Warren J.T., Wei X., White F., Williamson A.L., Wleczyk R., Wooden H.S., Wooden S.H., Yen J., Yoon L., Yoon V., Zorrilla S.E., Nelson D., Kucherlapati R., Weinstock G., Gibbs R.A.;
"The finished DNA sequence of human chromosome 12.";
Nature 440:346-351(2006).
[2]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
TISSUE=Testis;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
Comments
  • FUNCTION: 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.
  • SUBUNIT: 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.
  • SUBCELLULAR LOCATION: Nucleus.
  • PTM: Acetylation is generally linked to gene activation. Acetylation on Lys-10 (H3K9ac) impairs methylation at Arg-9 (H3R8sme2). Acetylation on Lys-19 (H3K18ac) and Lys-24 (H3K24ac) favors methylation at Arg-18 (H3R17me) (By similarity).
  • PTM: Citrullination at Arg-9 (H3R8ci) and/or Arg-18 (H3R17ci) by PADI4 impairs methylation and represses transcription (By similarity).
  • PTM: Asymmetric dimethylation at Arg-18 (H3R17me2a) by CARM1 is linked to gene activation. Symmetric dimethylation at Arg-9 (H3R8sme2) by PRMT5 is linked to gene repression. 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).
  • PTM: Methylation at Lys-5 (H3K4me) is linked to gene activation. Methylation at Lys-5 (H3K4me) facilitates subsequent acetylation of H3 and H4. 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) requires preliminary monoubiquitination of H2B at 'Lys-120'. Methylation at Lys-10 (H3K9me) and Lys-28 (H3K27me) are enriched in inactive X chromosome chromatin (By similarity).
  • PTM: Phosphorylated at Thr-4 (H3T3ph) by GSG2/haspin during prophase and dephosphorylated during anaphase. At centromeres, specifically phosphorylated at Thr-12 (H3T11ph) from prophase to early anaphase, probably by DAPK3. 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. Phosphorylated at Ser-29 by MLTK isoform 1, RPS6KA5 or AURKB during mitosis or upon ultraviolet B irradiation.
  • SIMILARITY: Belongs to the histone H3 family.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AC023050; -; NOT_ANNOTATED_CDS; Genomic_DNA.[EMBL / GenBank / DDBJ]
BC066906; AAH66906.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
IPI IPI00419884; -.
RefSeq NP_001013721.2; -.
UniGene Hs.448697
3D structure databases
HSSP P02302; 1AOI. [HSSP ENTRY / PDB]
SMR Q6NXT2; 2-135.
ModBase Q6NXT2.
Organism-specific databases
GeneCards GC12M031832; -.
Gene expression databases
GermOnline ENSG00000188375; Homo sapiens.
Ontologies
GO
GO:0000786; Cellular component: nucleosome (inferred from electronic annotation from UniProtKB-KW).
GO:0005634; Cellular component: nucleus (inferred from electronic annotation from UniProtKB-SubCell).
GO:0003677; Molecular function: DNA binding (inferred from electronic annotation from UniProtKB-KW).
GO:0006334; Biological process: nucleosome assembly (inferred from electronic annotation from InterPro).
QuickGo view.
Family and domain databases
InterPro IPR009072; Histone-fold.
IPR007125; Histone_core_D.
IPR000164; Histone_H3.
Graphical view of domain structure.
Gene3D G3DSA:1.10.20.10; Histone-fold; 1.
PANTHER PTHR11426; Histone_H3; 1.
Pfam PF00125; Histone; 1.
Pfam graphical view of domain structure.
PRINTS PR00622; HISTONEH3.
SMART SM00428; H3; 1.
SMART graphical view of domain structure.
PROSITE PS00322; HISTONE_H3_1; 1.
PS00959; HISTONE_H3_2; 1.
Proteomic databases
PRIDE Q6NXT2; -.
Genome annotation databases
Ensembl ENSG00000188375; Homo sapiens. [Contig view]
GeneID 440093; -.
KEGG hsa:440093; -.
NMPDR fig|9606.3.peg.7374; -.
Phylogenomic databases
HOVERGEN Q6NXT2; -.
OMA Q6NXT2; STIGMAP.
Other
NextBio 108939; -.
ProtoNet Q6NXT2.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Acetylation; Chromosomal protein; Citrullination; DNA-binding; Methylation; Nucleosome core; Nucleus; Phosphoprotein.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
INIT_MET   1     1        Removed (By similarity). 
CHAIN   2   135  134     Histone H3-like. PRO_0000253960
MOD_RES   3     3        Asymmetric dimethylarginine; by PRMT6 (By similarity). 
MOD_RES   4     4        Phosphothreonine (By similarity). 
MOD_RES   5     5        N6-methylated lysine (By similarity). 
MOD_RES   9     9        Citrulline; alternate (By similarity). 
MOD_RES   9     9        Symmetric dimethylarginine; by PRMT5; alternate (By similarity). 
MOD_RES   10    10        N6-acetyllysine; alternate (By similarity). 
MOD_RES   10    10        N6-methylated lysine; alternate (By similarity). 
MOD_RES   11    11        Phosphoserine (By similarity). 
MOD_RES   12    12        Phosphothreonine (By similarity). 
MOD_RES   15    15        N6-acetyllysine (By similarity). 
MOD_RES   18    18        Asymmetric dimethylarginine; by CARM1; alternate (By similarity). 
MOD_RES   18    18        Citrulline; alternate (By similarity). 
MOD_RES   19    19        N6-acetyllysine; alternate (By similarity). 
MOD_RES   19    19        N6-methylated lysine; alternate (By similarity). 
MOD_RES   24    24        N6-acetyllysine (By similarity). 
MOD_RES   28    28        N6-acetyllysine; alternate (By similarity). 
MOD_RES   28    28        N6-methylated lysine; alternate (By similarity). 
MOD_RES   29    29        Phosphoserine (By similarity). 
MOD_RES   32    32        Phosphoserine (By similarity). 
MOD_RES   122   122        N6-methylated lysine (By similarity). 
CONFLICT   88    88        A -> V (in Ref. 2; AAH66906). 
Sequence information
Length: 135 AA [This is the length of the unprocessed precursor] Molecular weight: 15214 Da [This is the MW of the unprocessed precursor] CRC64: F2941F8A9BC61BB5 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MARTKQTARK STGGKAPRKQ LATKAARKST PSTCGVKPHR YRPGTVALRE IRRYQKSTEL 

        70         80         90        100        110        120 
LIRKLPFQRL VREIAQDFNT DLRFQSAAVG ALQEASEAYL VGLLEDTNLC AIHAKRVTIM 

       130 
PKDIQLARRI RGERA 

Q6NXT2 in FASTA format

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