General Information of the Protein
Protein ID
PT02188
Protein Name
Histone acetyltransferase KAT2B
Secondarily
Protein Name
Histone acetyltransferase PCAF
Lysine acetyltransferase 2B
P300/CBP-associated factor
Spermidine acetyltransferase KAT2B
Gene Name
KAT2B
Secondarily
Gene Name
PCAF
Sequence
MSEAGGAGPGGCGAGAGAGAGPGALPPQPAALPPAPPQGSPCAAAAGGSGACGPATAVAAAGTAEGPGGGGSARIAVKKAQLRSAPRAKKLEKLGVYSACKAEESCKCNGWKNPNPSPTPPRADLQQIIVSLTESCRSCSHALAAHVSHLENVSEEEMNRLLGIVLDVEYLFTCVHKEEDADTKQVYFYLFKLLRKSILQRGKPVVEGSLEKKPPFEKPSIEQGVNNFVQYKFSHLPAKERQTIVELAKMFLNRINYWHLEAPSQRRLRSPNDDISGYKENYTRWLCYCNVPQFCDSLPRYETTQVFGRTLLRSVFTVMRRQLLEQARQEKDKLPLEKRTLILTHFPKFLSMLEEEVYSQNSPIWDQDFLSASSRTSQLGIQTVINPPPVAGTISYNSTSSSLEQPNAGSSSPACKASSGLEANPGEKRKMTDSHVLEEAKKPRVMGDIPMELINEVMSTITDPAAMLGPETNFLSAHSARDEAARLEERRGVIEFHVVGNSLNQKPNKKILMWLVGLQNVFSHQLPRMPKEYITRLVFDPKHKTLALIKDGRVIGGICFRMFPSQGFTEIVFCAVTSNEQVKGYGTHLMNHLKEYHIKHDILNFLTYADEYAIGYFKKQGFSKEIKIPKTKYVGYIKDYEGATLMGCELNPRIPYTEFSVIIKKQKEIIKKLIERKQAQIRKVYPGLSCFKDGVRQIPIESIPGIRETGWKPSGKEKSKEPRDPDQLYSTLKSILQQVKSHQSAWPFMEPVKRTEAPGYYEVIRFPMDLKTMSERLKNRYYVSKKLFMADLQRVFTNCKEYNPPESEYYKCANILEKFFFSKIKEAGLIDK
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Organism
Homo sapiens, Human
Protein Classification
Epigenetic regulator
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Reader
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Bromodomain
Function
Functions as a histone acetyltransferase (HAT) to promote transcriptional activation (PubMed:8945521). Has significant histone acetyltransferase activity with core histones (H3 and H4), and also with nucleosome core particles (PubMed:8945521). Also acetylates non-histone proteins, such as ACLY, MAPRE1/EB1, PLK4, RRP9/U3-55K and TBX5 (PubMed:9707565, PubMed:10675335, PubMed:23001180, PubMed:27796307, PubMed:23932781, PubMed:26867678, PubMed:29174768). Inhibits cell-cycle progression and counteracts the mitogenic activity of the adenoviral oncoprotein E1A (PubMed:8684459). Acts as a circadian transcriptional coactivator which enhances the activity of the circadian transcriptional activators: NPAS2-BMAL1 and CLOCK-BMAL1 heterodimers (PubMed:14645221). Involved in heart and limb development by mediating acetylation of TBX5, acetylation regulating nucleocytoplasmic shuttling of TBX5 (PubMed:29174768). Acts as a negative regulator of centrosome amplification by mediating acetylation of PLK4 (PubMed:27796307). Acetylates RRP9/U3-55K, a core subunit of the U3 snoRNP complex, impairing pre-rRNA processing (PubMed:26867678). Acetylates MAPRE1/EB1, promoting dynamic kinetochore-microtubule interactions in early mitosis (PubMed:23001180). Also acetylates spermidine (PubMed:27389534).
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Uniprot ID
Primary ID:
Q92831

Secondarily ID:
Q6NSK1
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Ensembl ID
ENSG00000114166
HGNC ID
HGNC:8638
Subcellular Location
Nucleus
Cytoplasm
Cytoskeleton
Microtubule organizing center
Centrosome
Cytoplasm
Map of Molecular Bioactivity Related to the Protein
Map of Molecular Bioactivity Related to the Protein

Protein
Cell Line
Compound

Bioactivity Value:

<= 0.1 μM
> 0.1 μM and <= 10 μM
> 10 μM
Imprecise Activity
Table of Molecular Bioactivities Related to the Protein
Cell Line ID: CL000059 , HuT 78
 Cell Line Info 
Compound ID Compound Name Compound Formula
CP0651910
 Compound Info 
8-(((3R,4R)-3-((1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-methoxy)-1-methylpiperidin-4-yl)amino)-3-methyl-5-(5-methylpyridin-3-yl)-1,7-naphthyridin-2(1H)-one
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C27H35N5O4S
  1
1
Kd > 100000 nM
 Bioactivity Info 
   TI
   LI
   LO
   TS
CP0717935
 Compound Info 
rac-8-(((3R,4R)-3-((1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-methoxy)piperidin-4-yl)amino)-3-methyl-5-(5-methylpyridin-3-yl)quinolin-2(1H)-one
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C27H34N4O4S
  1
1
Kd > 100000 nM
 Bioactivity Info 
   TI
   LI
   LO
   TS
Cell Line ID: CL000013 , Sf9
 Cell Line Info 
Biochemical Assays
Compound ID Compound Name Compound Formula
CP0676421
 Compound Info 
Garcinol
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C38H50O6
  1
1 IC50 = 6000 nM
CP0083691
 Compound Info 
2-(4-fluorophenyl)-[1,2]thiazolo[5,4-b]pyridin-3-one
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C12H7FN2OS
  1
1 IC50 = 9740 nM
CP0228935
 Compound Info 
4-bromo-2-methyl-5-[[(3S,5S)-1-methyl-5-phenylpiperidin-3-yl]amino]pyridazin-3-one
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C17H21BrN4O
  1
1 IC50 = 12589.25 nM
CP0057581
 Compound Info 
2-Hydroxy-6-pentadecyl-benzoic acid
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C22H36O3
  1
1 IC50 = 33900 nM
CP0020526
 Compound Info 
2-[[(3R,5R)-5-(2,3-dihydro-1,4-benzodioxin-6-yl)-1-methylpiperidin-3-yl]amino]-3-methyl-5H-pyrrolo[3,2-d]pyrimidin-4-one
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C21H25N5O3
  1
1 Kd = 78 nM
Clinical Information about the Protein
Target 1 ( Histone acetyltransferase KAT2B (KAT2B) )
Target Type Literature-reported Target