lysine demethylase 5B

Target id: 2681

Nomenclature: lysine demethylase 5B

Family: 1.14.11.- Histone demethylases

Annotation status:  image of a grey circle Awaiting annotation/under development. Please contact us if you can help with annotation.  » Email us

   GtoImmuPdb view: OFF :     Currently no data for lysine demethylase 5B in GtoImmuPdb

Gene and Protein Information
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human - 1544 1q32.1 KDM5B lysine demethylase 5B
Mouse - 1544 1 E4 Kdm5b lysine (K)-specific demethylase 5B
Rat - 1544 13q13 Kdm5b lysine demethylase 5B
Previous and Unofficial Names
JARID1B | Jumonji AT-rich interactive domain 1B | PLU1 | lysine (K)-specific demethylase 5B
Database Links
Ensembl Gene
Entrez Gene
GenitoUrinary Development Molecular Anatomy Project
Human Protein Atlas
RefSeq Nucleotide
RefSeq Protein
Selected 3D Structures
Image of receptor 3D structure from RCSB PDB
Description:  Crystal structure of human PLU-1 (JARID1B) in complex with KDOAM25a (note that JARID1B=KDM5B).
PDB Id:  5A3N
Ligand:  KDOAM25
Resolution:  2.0Å
Species:  Human

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Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Affinity Units Reference
GSK-J1 Hs Inhibition 6.8 pIC50 2
pIC50 6.8 (IC50 1.7x10-7 M) [2]
PBIT Hs Inhibition 5.5 pIC50 3
pIC50 5.5 (IC50 3x10-6 M) [3]
GSK-J4 Hs Inhibition 5.0 pIC50 2
pIC50 5.0 (IC50 9.7x10-6 M) [2]
Inhibitor Comments
PBIT also inhibits KDM5A and KDM5C, with IC50 values of 6000 and 4900 nm respectively [3].
Gene Expression and Pathophysiology
Tissue or cell type: 
Pathophysiology:  Various cancers
Species:  Human
References:  1
General Comments
KDM5B is an H3K4 histone demethylase [4], belonging to a subfamily of demethylases responsible for the demethylation of H3K4me3 [3].


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1. Blair LP, Cao J, Zou MR, Sayegh J, Yan Q. (2011) Epigenetic Regulation by Lysine Demethylase 5 (KDM5) Enzymes in Cancer. Cancers (Basel)3 (1): 1383-404. [PMID:21544224]

2. Heinemann B, Nielsen JM, Hudlebusch HR, Lees MJ, Larsen DV, Boesen T, Labelle M, Gerlach LO, Birk P, Helin K. (2014) Inhibition of demethylases by GSK-J1/J4. Nature514 (7520): E1-2. [PMID:25279926]

3. Sayegh J, Cao J, Zou MR, Morales A, Blair LP, Norcia M, Hoyer D, Tackett AJ, Merkel JS, Yan Q. (2013) Identification of small molecule inhibitors of Jumonji AT-rich interactive domain 1B (JARID1B) histone demethylase by a sensitive high throughput screen. J. Biol. Chem.288 (13): 9408-17. [PMID:23408432]

4. Yamane K, Tateishi K, Klose RJ, Fang J, Fabrizio LA, Erdjument-Bromage H, Taylor-Papadimitriou J, Tempst P, Zhang Y. (2007) PLU-1 is an H3K4 demethylase involved in transcriptional repression and breast cancer cell proliferation. Mol. Cell25 (6): 801-12. [PMID:17363312]

How to cite this page

1.14.11.- Histone demethylases: lysine demethylase 5B. Last modified on 30/03/2016. Accessed on 18/03/2018. IUPHAR/BPS Guide to PHARMACOLOGY,