lmmol · Proteins

Lysine-specific histone demethylase 1A

Also known as: AOF2, BHC110, KDM1, KDM1A, KIAA0601, LSD1

Function

Histone demethylase that can demethylate both 'Lys-4' (H3K4me) and 'Lys-9' (H3K9me) of histone H3, thereby acting as a coactivator or a corepressor, depending on the context. Acts by oxidizing the substrate by FAD to generate the corresponding imine that is subsequently hydrolyzed. Acts as a corepressor by mediating demethylation of H3K4me, a specific tag for epigenetic transcriptional activation. Demethylates both mono- (H3K4me1) and di-methylated (H3K4me2). May play a role in the repression of neuronal genes. Alone, it is unable to demethylate H3K4me on nucleosomes and requires the presence of RCOR1/CoREST to achieve such activity. Also acts as a coactivator of androgen receptor (AR)-dependent transcription, by being recruited to AR target genes and mediating demethylation of H3K9me, a specific tag for epigenetic transcriptional repression. The presence of PRKCB in AR-containing complexes, which mediates phosphorylation of 'Thr-6' of histone H3 (H3T6ph), a specific tag that prevents demethylation H3K4me, prevents H3K4me demethylase activity of KDM1A. Demethylates di-methylated 'Lys-370' of p53/TP53 which prevents interaction of p53/TP53 with TP53BP1 and represses p53/TP53-mediated transcriptional activation. Demethylates and stabilizes the DNA methylase DNMT1. Demethylates methylated 'Lys-42' and methylated 'Lys-117' of SOX2. Required for gastrulation during embryogenesis. Component of a RCOR/GFI/KDM1A/HDAC complex that suppresses, via histone deacetylase (HDAC) recruitment, a number of genes implicated in multilineage blood cell development. Facilitates epithelial-to-mesenchymal transition by acting as an effector of SNAI1-mediated transcription repression of epithelial markers E-cadherin/CDH1, CDN7 and KRT8. Required for the maintenance of the silenced state of the SNAI1 target genes E-cadherin/CDH1 and CDN7. Required for the repression of GIPR expression.

Classification

Family (Pfam)
PF01593 Amino_oxidase, PF04433 SWIRM
InterPro
Amino_oxidase, FAD/NAD-bd_sf, Flavin_monoamine_oxidase, Hist_Lys-spec_deMease, Homeodomain-like_sf, SWIRM, WH-like_DNA-bd_sf
Functional cluster
Homeobox & Zinc-Finger Transcription Factors

Experimental structures · PDB · 127

A predicted model is available from AlphaFold.

Gene Ontology · 58

Disease associations

Drugs targeting this protein · 1

Related proteins · sequence + function similarity

Co-cited proteins · studied together in the literature

Literature · 55 cited papers

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