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UniProtKB/Swiss-Prot entry Q7SB74


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

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Entry information
Entry name DOT1_NEUCR
Primary accession number Q7SB74
Secondary accession numbers None
Integrated into Swiss-Prot on January 9, 2007
Sequence was last modified on December 15, 2003 (Sequence version 1)
Annotations were last modified on    November 4, 2008 (Entry version 31)
Name and origin of the protein
Protein name Histone-lysine N-methyltransferase, H3 lysine-79 specific
Synonyms EC 2.1.1.43
Histone H3-K79 methyltransferase
H3-K79-HMTase
Gene name
Name: dot-1
ORFNames: NCU06266
From
Neurospora crassa [TaxID: 5141] 
Taxonomy Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes; Sordariomycetidae; Sordariales; Sordariaceae; Neurospora.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987;
DOI=10.1038/nature01554; PubMed=12712197 [NCBI, ExPASy, EBI, Israel, Japan]
Galagan J.E., Calvo S.E., Borkovich K.A., Selker E.U., Read N.D., Jaffe D.B., FitzHugh W., Ma L.-J., Smirnov S., Purcell S., Rehman B., Elkins T., Engels R., Wang S., Nielsen C.B., Butler J., Endrizzi M., Qui D., Ianakiev P., Bell-Pedersen D., Nelson M.A., Werner-Washburne M., Selitrennikoff C.P., Kinsey J.A., Braun E.L., Zelter A., Schulte U., Kothe G.O., Jedd G., Mewes H.-W., Staben C., Marcotte E., Greenberg D., Roy A., Foley K., Naylor J., Stange-Thomann N., Barrett R., Gnerre S., Kamal M., Kamvysselis M., Mauceli E.W., Bielke C., Rudd S., Frishman D., Krystofova S., Rasmussen C., Metzenberg R.L., Perkins D.D., Kroken S., Cogoni C., Macino G., Catcheside D.E.A., Li W., Pratt R.J., Osmani S.A., DeSouza C.P.C., Glass N.L., Orbach M.J., Berglund J.A., Voelker R., Yarden O., Plamann M., Seiler S., Dunlap J.C., Radford A., Aramayo R., Natvig D.O., Alex L.A., Mannhaupt G., Ebbole D.J., Freitag M., Paulsen I., Sachs M.S., Lander E.S., Nusbaum C., Birren B.W.;
"The genome sequence of the filamentous fungus Neurospora crassa.";
Nature 422:859-868(2003).
Comments
  • FUNCTION: Histone methyltransferase that specifically methylates histone H3 to form H3K79me. This methylation is required for telomere silencing and for the pachytene checkpoint during the meiotic cell cycle by allowing the recruitment of RAD9 to double strand breaks. Nucleosomes are preferred as substrate compared to free histones (By similarity).
  • CATALYTIC ACTIVITY: S-adenosyl-L-methionine + histone L-lysine = S-adenosyl-L-homocysteine + histone N6-methyl-L-lysine.
  • ENZYME REGULATION: Ubiquitination of histone H2B to form H2BK123ub1 is required for efficient DOT1 methyltransferase activity on histone H3 (By similarity).
  • SUBCELLULAR LOCATION: Nucleus (By similarity).
  • MISCELLANEOUS: In contrast to other lysine histone methyltransferase, it does not contain a SET domain, suggesting the existence of another mechanism for methylation of lysine residues of histones.
  • SIMILARITY: Belongs to the DOT1 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
AABX02000025; EAA33634.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq XP_962870.1; -.
3D structure databases
ModBase Q7SB74.
Ontologies
GO
GO:0005634; Cellular component: nucleus (inferred from electronic annotation from UniProtKB-KW).
GO:0016568; Biological process: chromatin modification (inferred from electronic annotation from UniProtKB-KW).
GO:0006355; Biological process: regulation of transcription, DNA-dependent (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
InterPro IPR013110; DOT1.
Graphical view of domain structure.
Pfam PF08123; DOT1; 1.
Pfam graphical view of domain structure.
BLOCKS Q7SB74.
ProtoNet Q7SB74.
Genome annotation databases
GeneID 3879023; -.
KEGG ncr:NCU06266; -.
NMPDR fig|5141.1.peg.4054; -.
Other
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Chromatin regulator; Complete proteome; Methyltransferase; Nucleus; Repeat; S-adenosyl-L-methionine; Transcription; Transcription regulation; Transferase.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   531  531     Histone-lysine N-methyltransferase, H3 lysine-79 specific. PRO_0000270615
REGION   377   379  3     S-adenosyl-L-methionine binding (By similarity). 
REGION   437   438  2     S-adenosyl-L-methionine binding (By similarity). 
MOTIF   373   384  12     SAM-binding motif 1 (By similarity). 
MOTIF   452   461  10     SAM-binding motif 2 (By similarity). 
BINDING   355   355        S-adenosyl-L-methionine; via amide nitrogen (By similarity). 
BINDING   401   401        S-adenosyl-L-methionine (By similarity). 
Sequence information
Length: 531 AA [This is the length of the unprocessed precursor] Molecular weight: 59294 Da [This is the MW of the unprocessed precursor] CRC64: D1ED4AFD7EBDD1BB [This is a checksum on the sequence]
        10         20         30         40         50         60 
MSIFNQKSKF KIKTEIRTVR ETVERPKLKA STSSSSIPTT GSSQHSNVRI AGAGSSLSRA 

        70         80         90        100        110        120 
SSTPRLNGTS HTTSTSSSAR ASLTKVTTIP TARRIQSASP IPSINGDGRS SRKRRAIKAS 

       130        140        150        160        170        180 
SRSPISPHFS EDSDSDSNGD ENWEDNLDAR KRRKRVHDER PVDVNRKLRH PKIWKGEEAD 

       190        200        210        220        230        240 
QVERIPGPAI IHAAKVASLE HKCKPALGLK NEEVAVRLQY PGARYPERYE LVEGKDKIDA 

       250        260        270        280        290        300 
VKDIEKVVQL AASTYLTDEE GKIFLDHQTG ILRKLVKSKN RSDGPGFKAA LREYNDEFLK 

       310        320        330        340        350        360 
LMRKGVIVRN LDKMHGIPRE LVDFILDQVY DRTVAPRVEL LAKYQNGSDN VYGELNHPFI 

       370        380        390        400        410        420 
SDILERTNLT SDKVFVDLGS GVGNVTLQAA LEIGCESWGC EMMENACNLA EAQYDEFLAR 

       430        440        450        460        470        480 
CRLWGVKPGK VRLERGDFRK NEKILEVLKR ADVVLVNNQA FTSQLNDNLV SMFLDLKIGC 

       490        500        510        520        530 
KIISLKTFVH DNKNAENDVA TSILDVEHLT YPEGYVSWTG ASGTYCISTR R 

Q7SB74 in FASTA format

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BLAST logo BLAST submission on ExPASy/SIB
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Tools Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
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