Reviewed,
UniProtKB/Swiss-Prot Q9UBC3 (DNM3B_HUMAN)
Last modified
June 16, 2009.
Version 91.
History...
Clusters with 100%,
90%,
50% identity |
Documents (6) |
Third-party data |
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Names and origin
| Protein names | Recommended name: DNA (cytosine-5)-methyltransferase 3B Short name=Dnmt3b EC=2.1.1.37 Alternative name(s): DNA methyltransferase HsaIIIB Short name=DNA MTase HsaIIIB Short name=M.HsaIIIB | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 853 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Required for genome wide de novo methylation and is essential for development. DNA methylation is coordinated with methylation of histones. Isoforms 4 and 5 are probably not functional due to the deletion of two conserved methyltransferase motifs. Ref.9 |
| Catalytic activity | S-adenosyl-L-methionine + DNA = S-adenosyl-L-homocysteine + DNA containing 5-methylcytosine. |
| Subunit structure | Interacts with SUV39H1 By similarity. Interacts with SETDB1, UBL1 and UBE2I9. Interacts with DNMT1 and DNMT3A. Interacts with the PRC2/EED-EZH2 complex. |
| Subcellular location | |
| Tissue specificity | Ubiquitous; highly expressed in fetal liver, heart, kidney, placenta, and at lower levels in spleen, colon, brain, liver, small intestine, lung, peripheral blood mononuclear cells, and skeletal muscle. Isoform 1 is expressed in all tissues except brain, skeletal muscle and PBMC, 3 is ubiquitous, 4 is expressed in all tissues except brain, skeletal muscle, lung and prostate and 5 is detectable only in testis and at very low level in brain and prostate. |
| Post-translational modification | Sumoylated. Ref.6 |
| Involvement in disease | Defects in DNMT3B are a cause of immunodeficiency-centromeric instability-facial anomalies syndrome (ICF) [MIM:242860]. ICF is a rare autosomal recessive disorder characterized by a variable immunodeficiency, mild facial anomalies, and centromeric heterochromatin instability involving chromosomes 1, 9, and 16. ICF is biochemically characterized by hypomethylation of CpG sites in some regions of heterochromatin. Ref.2 Ref.12 Ref.13 Ref.14 Ref.15 |
| Sequence similarities | Belongs to the C5-methyltransferase family. Contains 1 ADD-type zinc finger. Contains 1 PWWP domain. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Nucleus |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation |
| Domain | Zinc-finger |
| Ligand | DNA-binding Metal-binding S-adenosyl-L-methionine Zinc |
| Molecular function | Methyltransferase Transferase |
| PTM | Ubl conjugation |
| Technical term | 3D-structure |
| Gene Ontology (GO) | |
| Biological process | DNA methylation Ref.1 Ref.12 Ref.14 Traceable author statement. Source: UniProtKB |
| Cellular component | cytoplasm Inferred from direct assay. Source: HPA nucleus Ref.1Inferred from direct assay. Source: HPA |
| Molecular function | DNA (cytosine-5-)-methyltransferase activity Ref.1 Ref.2 Traceable author statement. Source: UniProtKB DNA bindingInferred from electronic annotation. Source: UniProtKB-KW protein binding Ref.6 Ref.8 Ref.9Inferred from physical interaction. Source: IntAct zinc ion bindingInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| EED | O75530 | 1 | EBI-80125,EBI-923794 | |
| EZH2 | Q15910 | 3 | EBI-80125,EBI-530054 | |
| SETDB1 | Q15047 | 1 | EBI-287723,EBI-79691 | |
| SETDB1 | Q15047 | 1 | EBI-287726,EBI-79691 | |
| SUMO1 | P63165 | 1 | EBI-80125,EBI-80140 | |
| UBE2I | P63279 | 1 | EBI-80125,EBI-80168 |
Alternative products
| This entry describes 6 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9UBC3-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q9UBC3-2) The sequence of this isoform differs from the canonical sequence as follows: 356-375: Missing. | ||||||
| Isoform 3 (identifier: Q9UBC3-3) The sequence of this isoform differs from the canonical sequence as follows: 356-375: Missing. 745-807: Missing. | ||||||
| Isoform 4 (identifier: Q9UBC3-4) The sequence of this isoform differs from the canonical sequence as follows: 356-375: Missing. 744-744: R → S 745-853: Missing. | ||||||
| Isoform 5 (identifier: Q9UBC3-5) The sequence of this isoform differs from the canonical sequence as follows: 356-375: Missing. 768-853: LKKVQTITTK...APLKDYFACE → DLWLSCALHR...LRPSEGLLCM | ||||||
| Isoform 6 (identifier: Q9UBC3-6) The sequence of this isoform differs from the canonical sequence as follows: 1-1: M → MEPSPEPPSLESM 356-375: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 853 | 853 | DNA (cytosine-5)-methyltransferase 3B | PRO_0000088045 | |||||
Regions | |||||||||
| Domain | 225 – 283 | 59 | PWWP | ||||||
| Zinc finger | 435 – 527 | 93 | ADD-type | ||||||
| Region | 1 – 298 | 298 | Interaction with DNMT1 and DNMT3A | ||||||
| Region | 435 – 527 | 93 | Interaction with the PRC2/EED-EZH2 complex By similarity | ||||||
Sites | |||||||||
| Active site | 651 | 1 | By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 | 1 | M → MEPSPEPPSLESM in isoform 6. | VSP_005636 | |||||
| Alternative sequence | 356 – 375 | 20 | Missing in isoform 2, isoform 3, isoform 4, isoform 5 and isoform 6. | VSP_005637 | |||||
| Alternative sequence | 744 | 1 | R → S in isoform 4. | VSP_005639 | |||||
| Alternative sequence | 745 – 853 | 109 | Missing in isoform 4. | VSP_005640 | |||||
| Alternative sequence | 745 – 807 | 63 | Missing in isoform 3. | VSP_005638 | |||||
| Alternative sequence | 768 – 853 | 86 | LKKVQ…YFACE → DLWLSCALHRRVQHGPWCPP EAAGKVLERACHPTPLRPSE GLLCM in isoform 5. | VSP_005641 | |||||
| Natural variant | 54 | 1 | R → P: dbSNP rs17123590. | VAR_033885 | |||||
| Natural variant | 270 | 1 | S → P in ICF. Ref.12 Ref.13 Ref.15 | VAR_022579 | |||||
| Natural variant | 585 | 1 | A → V in ICF. Ref.14 Ref.15 | VAR_011506 | |||||
| Natural variant | 603 | 1 | A → T in ICF. Ref.12 Ref.13 Ref.14 Ref.15 | VAR_011499 | |||||
| Natural variant | 606 | 1 | V → A in ICF. Ref.14 Ref.15 | VAR_011507 | |||||
| Natural variant | 663 | 1 | G → S in ICF. Ref.2 Ref.15 | VAR_011500 | |||||
| Natural variant | 664 | 1 | L → P in ICF. Ref.15 | VAR_022580 | |||||
| Natural variant | 699 | 1 | V → G in ICF. Ref.14 Ref.15 | VAR_011508 | |||||
| Natural variant | 726 | 1 | V → G in ICF. Ref.2 Ref.13 Ref.14 Ref.15 | VAR_011501 | |||||
| Natural variant | 766 | 1 | A → P in ICF. Ref.14 Ref.15 | VAR_011509 | |||||
| Natural variant | 806 | 1 | E → ESTP in ICF. | VAR_011502 | |||||
| Natural variant | 814 | 1 | H → R in ICF. Ref.14 Ref.15 | VAR_011510 | |||||
| Natural variant | 817 | 1 | D → G in ICF. Ref.2 Ref.15 | VAR_011503 | |||||
| Natural variant | 818 | 1 | V → M in ICF. Ref.2 Ref.14 Ref.15 | VAR_011504 | |||||
| Natural variant | 840 | 1 | R → Q in ICF. Ref.12 Ref.13 Ref.15 | VAR_022581 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning, expression and chromosome locations of the human DNMT3 gene family." Xie S., Wang Z., Okano M., Nogami M., Li Y., He W.-W., Okumura K., Li E. Gene 236:87-95(1999) [PubMed: 10433969] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2 AND 3). Tissue: Fetal testis and Small intestine. |
| [2] | "Chromosome instability and immunodeficiency syndrome caused by mutations in a DNA methyltransferase gene." Xu G.-L., Bestor T.H., Bourc'his D., Hsieh C.-L., Tommerup N., Bugge M., Hulten M., Qu X., Russo J.J., Viegas-Pequignot E. Nature 402:187-191(1999) [PubMed: 10647011] [Abstract] Cited for: NUCLEOTIDE SEQUENCE (ISOFORM 6), VARIANTS ICF SER-663; GLY-726; GLY-817 AND MET-818. Tissue: Testis. |
| [3] | "Cloning, expression and characterization of human DNMT3 genes." Ni J., Pradhan S., Roberts R.J. Submitted (DEC-2000) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE (ISOFORM 1). |
| [4] | "The DNA sequence and comparative analysis of human chromosome 20." Deloukas P., Matthews L.H., Ashurst J.L., Burton J., Gilbert J.G.R., Jones M., Stavrides G., Almeida J.P., Babbage A.K., Bagguley C.L., Bailey J., Barlow K.F., Bates K.N., Beard L.M., Beare D.M., Beasley O.P., Bird C.P., Blakey S.E. Rogers J.Nature 414:865-871(2001) [PubMed: 11780052] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA] (ISOFORMS 1; 2 AND 3). |
| [5] | "The human DNA methyltransferases (DNMTs) 1, 3a and 3b: coordinate mRNA expression in normal tissues and overexpression in tumors." Robertson K.D., Uzvolgyi E., Liang G., Talmadge C., Sumegi J., Gonzales F.A., Jones P.A. Nucleic Acids Res. 27:2291-2298(1999) [PubMed: 10325416] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 636-853 (ISOFORMS 1; 4 AND 5). Tissue: Testis. |
| [6] | "Dnmt3b, de novo DNA methyltransferase, interacts with SUMO-1 and Ubc9 through its N-terminal region and is subject to modification by SUMO-1." Kang E.S., Park C.W., Chung J.H. Biochem. Biophys. Res. Commun. 289:862-868(2001) [PubMed: 11735126] [Abstract] Cited for: INTERACTION WITH UBL1 AND UBE2I9, SUMOYLATION, SUBCELLULAR LOCATION. |
| [7] | "Co-operation and communication between the human maintenance and de novo DNA (cytosine-5) methyltransferases." Kim G.-D., Ni J., Kelesoglu N., Roberts R.J., Pradhan S. EMBO J. 21:4183-4195(2002) [PubMed: 12145218] [Abstract] Cited for: INTERACTION WITH DNMT1 AND DNMT3A, SUBCELLULAR LOCATION. |
| [8] | "The histone methyltransferase SETDB1 and the DNA methyltransferase DNMT3A interact directly and localize to promoters silenced in cancer cells." Li H., Rauch T., Chen Z.-X., Szabo P.E., Riggs A.D., Pfeifer G.P. J. Biol. Chem. 281:19489-19500(2006) [PubMed: 16682412] [Abstract] Cited for: INTERACTION WITH SETDB1. |
| [9] | "The Polycomb group protein EZH2 directly controls DNA methylation." Vire E., Brenner C., Deplus R., Blanchon L., Fraga M., Didelot C., Morey L., Van Eynde A., Bernard D., Vanderwinden J.-M., Bollen M., Esteller M., Di Croce L., de Launoit Y., Fuks F. Nature 439:871-874(2006) [PubMed: 16357870] [Abstract] Cited for: FUNCTION, INTERACTION WITH THE PRC2/EED-EZH2 COMPLEX. |
| [10] | Erratum Vire E., Brenner C., Deplus R., Blanchon L., Fraga M., Didelot C., Morey L., Van Eynde A., Bernard D., Vanderwinden J.-M., Bollen M., Esteller M., Di Croce L., de Launoit Y., Fuks F. Nature 446:824-824(2006) |
| [11] | "Polycomb-mediated methylation on Lys27 of histone H3 pre-marks genes for de novo methylation in cancer." Schlesinger Y., Straussman R., Keshet I., Farkash S., Hecht M., Zimmerman J., Eden E., Yakhini Z., Ben-Shushan E., Reubinoff B.E., Bergman Y., Simon I., Cedar H. Nat. Genet. 39:232-236(2007) [PubMed: 17200670] [Abstract] Cited for: DE NOVO DNA METHYLATION OF TARGET GENES. |
| [12] | "DNA methyltransferases Dnmt3a and Dnmt3b are essential for de novo methylation and mammalian development." Okano M., Bell D.W., Haber D.A., Li E. Cell 99:247-257(1999) [PubMed: 10555141] [Abstract] Cited for: VARIANTS ICF THR-603 AND SER-THR-PRO-806 INS. |
| [13] | "The DNMT3B DNA methyltransferase gene is mutated in the ICF immunodeficiency syndrome." Hansen R.S., Wijmenga C., Luo P., Stanek A.M., Canfield T.K., Weemaes C.M.R., Gartler S.M. Proc. Natl. Acad. Sci. U.S.A. 96:14412-14417(1999) [PubMed: 10588719] [Abstract] Cited for: VARIANTS ICF THR-603; GLY-726 AND SER-THR-PRO-806 INS. |
| [14] | "Genetic variation in ICF syndrome: evidence for genetic heterogeneity." Wijmenga C., Hansen R.S., Gimelli G., Bjoerck E.J., Davies E.G., Valentine D., Belohradsky B.H., van Dongen J.J., Smeets D.F.C.M., van den Heuvel L.P.W.J., Luyten J.A.F.M., Strengman E., Weemaes C.M.R., Pearson P.L. Hum. Mutat. 16:509-517(2000) [PubMed: 11102980] [Abstract] Cited for: VARIANTS ICF VAL-585; THR-603; ALA-606; GLY-699; GLY-726; PRO-766; ARG-814 AND MET-818. |
| [15] | "DNMT3B mutations and DNA methylation defect define two types of ICF syndrome." Jiang Y.L., Rigolet M., Bourc'his D., Nigon F., Bokesoy I., Fryns J.-P., Hulten M., Jonveaux P., Maraschio P., Megarbane A., Moncla A., Viegas-Pequignot E. Hum. Mutat. 25:56-63(2005) [PubMed: 15580563] [Abstract] Cited for: VARIANTS ICF PRO-270; VAL-585; THR-603; ALA-606; SER-663; PRO-664; GLY-699; GLY-726; PRO-766; ARG-814; GLY-817; MET-818 AND GLN-840. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AF156487 mRNA. Translation: AAD53062.1. AF156488 mRNA. Translation: AAD53063.1. AF176228 mRNA. Translation: AAF04015.1. AF331857 mRNA. Translation: AAL57040.1. AL035071 Genomic DNA. Translation: CAB53069.1. AL035071 Genomic DNA. Translation: CAB53070.1. AL035071 Genomic DNA. Translation: CAB53071.1. AF129267 mRNA. Translation: AAD31432.1. AF129268 mRNA. Translation: AAD31433.1. AF129269 mRNA. Translation: AAD31434.1. | |||||||||||||
| IPI | IPI00012593. IPI00180702. IPI00218357. IPI00218358. IPI00218359. IPI00218360. | ||||||||||||
| RefSeq | NP_008823.1. NP_787044.1. NP_787045.1. NP_787046.1. | ||||||||||||
| UniGene | Hs.713611 | ||||||||||||
3D structure databases | |||||||||||||
| |||||||||||||
| SMR | Q9UBC3. Positions 216-350. | ||||||||||||
| ModBase | Search... | ||||||||||||
Protein-protein interaction databases | |||||||||||||
| IntAct | Q9UBC3. 6 interactions. | ||||||||||||
Protein family/group databases | |||||||||||||
| REBASE | 4120. M.HsaDnmt3B. | ||||||||||||
PTM databases | |||||||||||||
| PhosphoSite | Q9UBC3. | ||||||||||||
Proteomic databases | |||||||||||||
| PRIDE | Q9UBC3. | ||||||||||||
Genome annotation databases | |||||||||||||
| Ensembl | ENSG00000088305. Homo sapiens. [Contig view] | ||||||||||||
| GeneID | 1789. | ||||||||||||
| KEGG | hsa:1789. | ||||||||||||
Organism-specific databases | |||||||||||||
| GeneCards | GC20P030813. | ||||||||||||
| H-InvDB | HIX0015730. | ||||||||||||
| HGNC | HGNC:2979. DNMT3B. | ||||||||||||
| HPA | HPA001595. | ||||||||||||
| MIM | 242860. phenotype. 602900. gene. | ||||||||||||
| Orphanet | 2268. ICF syndrome. | ||||||||||||
| PharmGKB | PA27446. | ||||||||||||
| GenAtlas | Search... | ||||||||||||
Phylogenomic databases | |||||||||||||
| HOVERGEN | Q9UBC3. | ||||||||||||
| OMA | Q9UBC3. YEAPKLY. | ||||||||||||
Enzyme and pathway databases | |||||||||||||
| BRENDA | 2.1.1.37. 247. | ||||||||||||
Gene expression databases | |||||||||||||
| ArrayExpress | Q9UBC3. | ||||||||||||
| Bgee | Q9UBC3. | ||||||||||||
| CleanEx | HS_DNMT3B. | ||||||||||||
| GermOnline | ENSG00000088305. Homo sapiens. | ||||||||||||
Family and domain databases | |||||||||||||
| InterPro | IPR001525. C5_DNA_meth. IPR018117. C5_DNA_meth_AS. IPR000313. PWWP. [Graphical view] | ||||||||||||
| Pfam | PF00145. DNA_methylase. 1 hit. PF00855. PWWP. 1 hit. [Graphical view] | ||||||||||||
| SMART | SM00293. PWWP. 1 hit. [Graphical view] | ||||||||||||
| PROSITE | PS00094. C5_MTASE_1. 1 hit. PS00095. C5_MTASE_2. False negative. PS50812. PWWP. 1 hit. [Graphical view] | ||||||||||||
| ProtoNet | Search... | ||||||||||||
Other Resources | |||||||||||||
| NextBio | 7289. | ||||||||||||
| SOURCE | Search... | ||||||||||||
Entry information
| Entry name | DNM3B_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9UBC3 Secondary accession number(s): Q9UBD4 Q9Y5S0 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| Human chromosome 20 Human chromosome 20: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with


