DNA (cytosine-5)-methyltransferase 3B

Details

Name

DNA (cytosine-5)-methyltransferase 3B

Synonyms

• 2.1.1.37
• DNA methyltransferase HsaIIIB
• DNA MTase HsaIIIB
• Dnmt3b
• M.HsaIIIB

Gene Name

DNMT3B

Organism

Humans

Amino acid sequence

>lcl|BSEQ0052502|DNA (cytosine-5)-methyltransferase 3B
MKGDTRHLNGEEDAGGREDSILVNGACSDQSSDSPPILEAIRTPEIRGRRSSSRLSKREV
SSLLSYTQDLTGDGDGEDGDGSDTPVMPKLFRETRTRSESPAVRTRNNNSVSSRERHRPS
PRSTRGRQGRNHVDESPVEFPATRSLRRRATASAGTPWPSPPSSYLTIDLTDDTEDTHGT
PQSSSTPYARLAQDSQQGGMESPQVEADSGDGDSSEYQDGKEFGIGDLVWGKIKGFSWWP
AMVVSWKATSKRQAMSGMRWVQWFGDGKFSEVSADKLVALGLFSQHFNLATFNKLVSYRK
AMYHALEKARVRAGKTFPSSPGDSLEDQLKPMLEWAHGGFKPTGIEGLKPNNTQPVVNKS
KVRRAGSRKLESRKYENKTRRRTADDSATSDYCPAPKRLKTNCYNNGKDRGDEDQSREQM
ASDVANNKSSLEDGCLSCGRKNPVSFHPLFEGGLCQTCRDRFLELFYMYDDDGYQSYCTV
CCEGRELLLCSNTSCCRCFCVECLEVLVGTGTAAEAKLQEPWSCYMCLPQRCHGVLRRRK
DWNVRLQAFFTSDTGLEYEAPKLYPAIPAARRRPIRVLSLFDGIATGYLVLKELGIKVGK
YVASEVCEESIAVGTVKHEGNIKYVNDVRNITKKNIEEWGPFDLVIGGSPCNDLSNVNPA
RKGLYEGTGRLFFEFYHLLNYSRPKEGDDRPFFWMFENVVAMKVGDKRDISRFLECNPVM
IDAIKVSAAHRARYFWGNLPGMNRPVIASKNDKLELQDCLEYNRIAKLKKVQTITTKSNS
IKQGKNQLFPVVMNGKEDVLWCTELERIFGFPVHYTDVSNMGRGARQKLLGRSWSVPVIR
HLFAPLKDYFACE

Number of residues

853

Molecular Weight

95750.18

Theoretical pI

Not Available

GO Classification

Functions

chromatin binding / DNA (cytosine-5-)-methyltransferase activity / DNA binding / DNA-methyltransferase activity / histone deacetylase binding / metal ion binding / transcription corepressor activity

Processes

cellular response to dexamethasone stimulus / cellular response to hyperoxia / DNA methylation / negative regulation of gene expression, epigenetic / negative regulation of histone H3-K9 methylation / negative regulation of transcription by RNA polymerase II / positive regulation of gene expression / positive regulation of histone H3-K4 methylation / positive regulation of neuron differentiation / response to activity / response to caffeine / response to cocaine / response to estradiol / response to hypoxia / response to ionizing radiation / response to toxic substance / response to vitamin A

Components

nucleoplasm / nucleus

General Function

Required for genome-wide de novo methylation and is essential for the establishment of DNA methylation patterns during development. DNA methylation is coordinated with methylation of histones. May preferentially methylates nucleosomal DNA within the nucleosome core region. May function as transcriptional co-repressor by associating with CBX4 and independently of DNA methylation. Seems to be involved in gene silencing (By similarity). In association with DNMT1 and via the recruitment of CTCFL/BORIS, involved in activation of BAG1 gene expression by modulating dimethylation of promoter histone H3 at H3K4 and H3K9. Isoforms 4 and 5 are probably not functional due to the deletion of two conserved methyltransferase motifs. Functions as a transcriptional corepressor by associating with ZHX1. Required for DUX4 silencing in somatic cells (PubMed:27153398).

Specific Function

Chromatin binding

Pfam Domain Function

• DNA_methylase (PF00145)
• PWWP (PF00855)
• ADD_DNMT3 (PF17980)

Transmembrane Regions

Not Available

Cellular Location

Nucleus

Gene sequence

>lcl|BSEQ0052503|DNA (cytosine-5)-methyltransferase 3B (DNMT3B)
ATGAAGGGAGACACCAGGCATCTCAATGGAGAGGAGGACGCCGGCGGGAGGGAAGACTCG
ATCCTCGTCAACGGGGCCTGCAGCGACCAGTCCTCCGACTCGCCCCCAATCCTGGAGGCT
ATCCGCACCCCGGAGATCAGAGGCCGAAGATCAAGCTCGCGACTCTCCAAGAGGGAGGTG
TCCAGTCTGCTAAGCTACACACAGGACTTGACAGGCGATGGCGACGGGGAAGATGGGGAT
GGCTCTGACACCCCAGTCATGCCAAAGCTCTTCCGGGAAACCAGGACTCGTTCAGAAAGC
CCAGCTGTCCGAACTCGAAATAACAACAGTGTCTCCAGCCGGGAGAGGCACAGGCCTTCC
CCACGTTCCACCCGAGGCCGGCAGGGCCGCAACCATGTGGACGAGTCCCCCGTGGAGTTC
CCGGCTACCAGGTCCCTGAGACGGCGGGCAACAGCATCGGCAGGAACGCCATGGCCGTCC
CCTCCCAGCTCTTACCTTACCATCGACCTCACAGACGACACAGAGGACACACATGGGACG
CCCCAGAGCAGCAGTACCCCCTACGCCCGCCTAGCCCAGGACAGCCAGCAGGGGGGCATG
GAGTCCCCGCAGGTGGAGGCAGACAGTGGAGATGGAGACAGTTCAGAGTATCAGGATGGG
AAGGAGTTTGGAATAGGGGACCTCGTGTGGGGAAAGATCAAGGGCTTCTCCTGGTGGCCC
GCCATGGTGGTGTCTTGGAAGGCCACCTCCAAGCGACAGGCTATGTCTGGCATGCGGTGG
GTCCAGTGGTTTGGCGATGGCAAGTTCTCCGAGGTCTCTGCAGACAAACTGGTGGCACTG
GGGCTGTTCAGCCAGCACTTTAATTTGGCCACCTTCAATAAGCTCGTCTCCTATCGAAAA
GCCATGTACCATGCTCTGGAGAAAGCTAGGGTGCGAGCTGGCAAGACCTTCCCCAGCAGC
CCTGGAGACTCATTGGAGGACCAGCTGAAGCCCATGTTGGAGTGGGCCCACGGGGGCTTC
AAGCCCACTGGGATCGAGGGCCTCAAACCCAACAACACGCAACCAGTGGTTAATAAGTCG
AAGGTGCGTCGTGCAGGCAGTAGGAAATTAGAATCAAGGAAATACGAGAACAAGACTCGA
AGACGCACAGCTGACGACTCAGCCACCTCTGACTACTGCCCCGCACCCAAGCGCCTCAAG
ACAAATTGCTATAACAACGGCAAAGACCGAGGGGATGAAGATCAGAGCCGAGAACAAATG
GCTTCAGATGTTGCCAACAACAAGAGCAGCCTGGAAGATGGCTGTTTGTCTTGTGGCAGG
AAAAACCCCGTGTCCTTCCACCCTCTCTTTGAGGGGGGGCTCTGTCAGACATGCCGGGAT
CGCTTCCTTGAGCTGTTTTACATGTATGATGACGATGGCTATCAGTCTTACTGCACTGTG
TGCTGCGAGGGCCGAGAGCTGCTGCTTTGCAGCAACACGAGCTGCTGCCGGTGTTTCTGT
GTGGAGTGCCTGGAGGTGCTGGTGGGCACAGGCACAGCGGCCGAGGCCAAGCTTCAGGAG
CCCTGGAGCTGTTACATGTGTCTCCCGCAGCGCTGTCATGGCGTCCTGCGGCGCCGGAAG
GACTGGAACGTGCGCCTGCAGGCCTTCTTCACCAGTGACACGGGGCTTGAATATGAAGCC
CCCAAGCTGTACCCTGCCATTCCCGCAGCCCGAAGGCGGCCCATTCGAGTCCTGTCATTG
TTTGATGGCATCGCGACAGGCTACCTAGTCCTCAAAGAGTTGGGCATAAAGGTAGGAAAG
TACGTCGCTTCTGAAGTGTGTGAGGAGTCCATTGCTGTTGGAACCGTGAAGCACGAGGGG
AATATCAAATACGTGAACGACGTGAGGAACATCACAAAGAAAAATATTGAAGAATGGGGC
CCATTTGACTTGGTGATTGGCGGAAGCCCATGCAACGATCTCTCAAATGTGAATCCAGCC
AGGAAAGGCCTGTATGAGGGTACAGGCCGGCTCTTCTTCGAATTTTACCACCTGCTGAAT
TACTCACGCCCCAAGGAGGGTGATGACCGGCCGTTCTTCTGGATGTTTGAGAATGTTGTA
GCCATGAAGGTTGGCGACAAGAGGGACATCTCACGGTTCCTGGAGTGTAATCCAGTGATG
ATTGATGCCATCAAAGTTTCTGCTGCTCACAGGGCCCGATACTTCTGGGGCAACCTACCC
GGGATGAACAGGCCCGTGATAGCATCAAAGAATGATAAACTCGAGCTGCAGGACTGCTTG
GAATACAATAGGATAGCCAAGTTAAAGAAAGTACAGACAATAACCACCAAGTCGAACTCG
ATCAAACAGGGGAAAAACCAACTTTTCCCTGTTGTCATGAATGGCAAAGAAGATGTTTTG
TGGTGCACTGAGCTCGAAAGGATCTTTGGCTTTCCTGTGCACTACACAGACGTGTCCAAC
ATGGGCCGTGGTGCCCGCCAGAAGCTGCTGGGAAGGTCCTGGAGCGTGCCTGTCATCCGA
CACCTCTTCGCCCCTCTGAAGGACTACTTTGCATGTGAATAG

Chromosome Location

20

Locus

20q11.21

External Identifiers

Resource	Link
UniProtKB ID	Q9UBC3
UniProtKB Entry Name	DNM3B_HUMAN
HGNC ID	HGNC:2979

General References

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Drug Relations

Drug Relations

DrugBank ID	Name	Drug group	Pharmacological action?	Actions	Details
DB01262	Decitabine	approved, investigational	unknown	inhibitor	Details