ID   DOT1_KLULA              Reviewed;         572 AA.
AC   Q6CWV1;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 1.
DT   24-JAN-2024, entry version 111.
DE   RecName: Full=Histone-lysine N-methyltransferase, H3 lysine-79 specific;
DE            EC=2.1.1.360;
DE   AltName: Full=Histone H3-K79 methyltransferase;
DE            Short=H3-K79-HMTase;
GN   Name=DOT1; OrderedLocusNames=KLLA0B01287g;
OS   Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 /
OS   NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Kluyveromyces.
OX   NCBI_TaxID=284590;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 /
RC   WM37;
RX   PubMed=15229592; DOI=10.1038/nature02579;
RA   Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA   de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA   Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA   Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA   Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA   Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA   Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA   Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA   Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA   Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA   Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA   Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA   Weissenbach J., Wincker P., Souciet J.-L.;
RT   "Genome evolution in yeasts.";
RL   Nature 430:35-44(2004).
CC   -!- FUNCTION: Histone methyltransferase that specifically trimethylates
CC       histone H3 to form H3K79me3. This methylation is required for telomere
CC       silencing and for the pachytene checkpoint during the meiotic cell
CC       cycle by allowing the recruitment of RAD9 to double strand breaks.
CC       Nucleosomes are preferred as substrate compared to free histone.
CC       {ECO:0000250|UniProtKB:Q04089}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-lysyl(79)-[histone H3] + 3 S-adenosyl-L-methionine = 3 H(+)
CC         + N(6),N(6),N(6)-trimethyl-L-lysyl(79)-[histone H3] + 3 S-adenosyl-L-
CC         homocysteine; Xref=Rhea:RHEA:60328, Rhea:RHEA-COMP:15549, Rhea:RHEA-
CC         COMP:15552, ChEBI:CHEBI:15378, ChEBI:CHEBI:29969, ChEBI:CHEBI:57856,
CC         ChEBI:CHEBI:59789, ChEBI:CHEBI:61961; EC=2.1.1.360;
CC         Evidence={ECO:0000250|UniProtKB:Q04089, ECO:0000255|PROSITE-
CC         ProRule:PRU00902};
CC   -!- ACTIVITY REGULATION: Ubiquitination of histone H2B to form H2BK123ub1
CC       is required for efficient DOT1 methyltransferase activity on histone
CC       H3. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000250}.
CC   -!- MISCELLANEOUS: In contrast to other lysine histone methyltransferases,
CC       it does not contain a SET domain, suggesting the existence of another
CC       mechanism for methylation of lysine residues of histones.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. DOT1 family. {ECO:0000255|PROSITE-ProRule:PRU00902}.
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DR   EMBL; CR382122; CAH01981.1; -; Genomic_DNA.
DR   RefSeq; XP_451588.1; XM_451588.1.
DR   AlphaFoldDB; Q6CWV1; -.
DR   SMR; Q6CWV1; -.
DR   STRING; 284590.Q6CWV1; -.
DR   PaxDb; 284590-Q6CWV1; -.
DR   GeneID; 2896923; -.
DR   KEGG; kla:KLLA0_B01287g; -.
DR   eggNOG; KOG3924; Eukaryota.
DR   HOGENOM; CLU_027287_0_1_1; -.
DR   InParanoid; Q6CWV1; -.
DR   OMA; VFHSYAK; -.
DR   Proteomes; UP000000598; Chromosome B.
DR   GO; GO:0000781; C:chromosome, telomeric region; IEA:GOC.
DR   GO; GO:0000786; C:nucleosome; IEA:InterPro.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0042393; F:histone binding; IEA:InterPro.
DR   GO; GO:0140956; F:histone H3K79 trimethyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000077; P:DNA damage checkpoint signaling; IEA:InterPro.
DR   GO; GO:0006281; P:DNA repair; IEA:InterPro.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0031509; P:subtelomeric heterochromatin formation; IEA:InterPro.
DR   Gene3D; 1.10.260.170; -; 1.
DR   Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR   InterPro; IPR021162; Dot1.
DR   InterPro; IPR025789; DOT1_dom.
DR   InterPro; IPR030445; H3-K79_meTrfase.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   PANTHER; PTHR21451; HISTONE H3 METHYLTRANSFERASE; 1.
DR   PANTHER; PTHR21451:SF0; HISTONE-LYSINE N-METHYLTRANSFERASE, H3 LYSINE-79 SPECIFIC; 1.
DR   Pfam; PF08123; DOT1; 1.
DR   PIRSF; PIRSF017570; Histone_H3-K79_MeTrfase; 1.
DR   SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR   PROSITE; PS51569; DOT1; 1.
PE   3: Inferred from homology;
KW   Chromatin regulator; Methyltransferase; Nucleus; Reference proteome;
KW   Repeat; S-adenosyl-L-methionine; Transcription; Transcription regulation;
KW   Transferase.
FT   CHAIN           1..572
FT                   /note="Histone-lysine N-methyltransferase, H3 lysine-79
FT                   specific"
FT                   /id="PRO_0000270614"
FT   DOMAIN          245..558
FT                   /note="DOT1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00902"
FT   REGION          1..48
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          75..173
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..20
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        75..115
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        123..146
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         361..364
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00902"
FT   BINDING         384..393
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00902"
FT   BINDING         411
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00902"
FT   BINDING         448..449
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00902"
SQ   SEQUENCE   572 AA;  64796 MW;  F830A57170781FF6 CRC64;
     MSTEATSSDA SVFSNMHSVD STRDNTRDNT RDNTPMNEGD TQGKRMTKST MALIEESMKY
     DMRSEYFLPM TFLRERRKPA RVESDEEDKL AEVKSKRRVS KKDQVKADIH STKIKKTGRP
     SNVKAGAKNT SKVTKQRSTK SQVSGKKRAR SISDGKVSSI DASRSLKASK KKHSSHADSL
     FLSNIEENVN PRPSFFNTTL IANPSSFTNK LTSSKMFVDD EEVTSLKGMK YILFPGVEEE
     YLICSKVQKF GYNPLPEIGQ SIESAVLLYF PNTYKTKGQE LVRSLNDAFE RSDDQSFEKI
     VLKYNDLIST IPRDLIVKNL SSNPDVPVSF VHFLLHTCYT RAIYPHARKL KKYTSFSNFV
     YGELMPDFLT IVFKKCGLNS NSIFMDLGSG VGNCVIQASL EFGCKLSFGC EIMDSASDMA
     ELQLKELKSR CDLWGINLPP IDFSLRKSFV DNERVRELIP QCDVILINNF IFDAPLNKEV
     EKVVQGLKAG SKIISLKSIR PPGYSINYDD MDNIFNRLHV ESFKLPENSV SWTYRSVGDY
     YISTVLDAID ESIFCPPILG RIRKKESIKY TR
//