ID A0A183T4I5_SCHSO Unreviewed; 218 AA.
AC A0A183T4I5;
DT 07-SEP-2016, integrated into UniProtKB/TrEMBL.
DT 07-SEP-2016, sequence version 1.
DT 08-NOV-2023, entry version 27.
DE RecName: Full=Histone-lysine N-methyltransferase, H3 lysine-79 specific {ECO:0000256|ARBA:ARBA00020987, ECO:0000256|RuleBase:RU271113};
DE EC=2.1.1.360 {ECO:0000256|ARBA:ARBA00012190, ECO:0000256|RuleBase:RU271113};
DE AltName: Full=Histone H3-K79 methyltransferase {ECO:0000256|ARBA:ARBA00029821, ECO:0000256|RuleBase:RU271113};
GN ORFNames=SSLN_LOCUS11383 {ECO:0000313|EMBL:VDL97768.1};
OS Schistocephalus solidus (Tapeworm).
OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Platyhelminthes; Cestoda;
OC Eucestoda; Diphyllobothriidea; Diphyllobothriidae; Schistocephalus.
OX NCBI_TaxID=70667 {ECO:0000313|Proteomes:UP000050788, ECO:0000313|WBParaSite:SSLN_0001181901-mRNA-1};
RN [1] {ECO:0000313|WBParaSite:SSLN_0001181901-mRNA-1}
RP IDENTIFICATION.
RG WormBaseParasite;
RL Submitted (JUN-2016) to UniProtKB.
RN [2] {ECO:0000313|EMBL:VDL97768.1, ECO:0000313|Proteomes:UP000275846}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NST_G2 {ECO:0000313|EMBL:VDL97768.1,
RC ECO:0000313|Proteomes:UP000275846};
RG Pathogen Informatics;
RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases.
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:0000256|RuleBase:RU271113}.
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:0000256|ARBA:ARBA00001569,
CC ECO:0000256|RuleBase:RU271113};
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000256|ARBA:ARBA00004123,
CC ECO:0000256|RuleBase:RU271113}.
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 {ECO:0000256|RuleBase:RU271113}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. DOT1 family. {ECO:0000256|RuleBase:RU271113}.
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DR EMBL; UYSU01036486; VDL97768.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A183T4I5; -.
DR STRING; 70667.A0A183T4I5; -.
DR WBParaSite; SSLN_0001181901-mRNA-1; SSLN_0001181901-mRNA-1; SSLN_0001181901.
DR Proteomes; UP000050788; Unplaced.
DR Proteomes; UP000275846; Unassembled WGS sequence.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0140956; F:histone H3K79 trimethyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0051726; P:regulation of cell cycle; IEA:InterPro.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 1.10.260.60; -; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
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 SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR PROSITE; PS51569; DOT1; 1.
PE 3: Inferred from homology;
KW Chromatin regulator {ECO:0000256|ARBA:ARBA00022853,
KW ECO:0000256|RuleBase:RU271113};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603,
KW ECO:0000256|RuleBase:RU271113};
KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|RuleBase:RU271113};
KW Reference proteome {ECO:0000313|Proteomes:UP000275846};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691,
KW ECO:0000256|RuleBase:RU271113};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU271113}.
FT DOMAIN 1..218
FT /note="DOT1"
FT /evidence="ECO:0000259|PROSITE:PS51569"
SQ SEQUENCE 218 AA; 25023 MW; 6AEEF3E4E610A902 CRC64;
MRIVICHFQW NEKGVRPEFC DRRAKTNQLK IILAQCYNRA VEDPEKLNQY PPFSPQVYGE
TSFELVSQMV NTVSITNDDS FIDLGSGVGQ VVLQVAASSN AKFSYGIEKA DYPSRCAEKM
DREFRRWMLV QGDFLSPECT ERIISSTIIF ANNFAFGPEV DHQLKERFAN LKEGAKIIAS
KAFCSLNFRI SDRKLDGKLA FWIKVYAFYF DQVHVEIS
//
