KMT5B

lysine methyltransferase 5B

Ensembl:
ENSG00000110066
UniProt:
Q4FZB7
OMIM:
610881
Synonyms:
CGI-85, SUV420H1

Cilia effects upon perturbation of KMT5B

Cilia number / % ciliated:
Decreased cilia number
Loss-of-function effect:
Shorter cilia

Ciliogenesis screen results (1 screen)

  • Breslow et al. 2018 (CRISPR) [CRISPR]: No Significant Effect PMID:29459680

Phenotypes

Mouse phenotype:
abnormal tail movements, process of degenerative change, decreased body weight, lipid deposition, preweaning lethality, incomplete penetrance, increased thermal nociceptive threshold, increased circulating chloride level
Human ciliopathy phenotype:
intellectual disability, autosomal dominant 51

Subcellular localization

cilia

Functional category

  • Ciliary assembly/disassembly
  • T cell biology

Function

KMT5B has localized in cilia. Knocking down KMT5B resulted in fewer and shorter cilia and impaired the formation of multiciliated cell tufts, indicating that the catalytic activity of KMT5B is required for proper ciliogenesis. (https://doi.org/10.1101/2025.03.18.644017) MCC precursor cells … ultimately fail in ciliogenesis because of perturbation of cytoplasmic processes (GeneTools)

Model organism evidence

Xenopus (2 references)

Catalytic activity of KMT5B promotes ciliogenesis without affecting global chromatin accessibility.

The histone H4K20 methyltransferase SUV4-20H1/KMT5B is required for multiciliated cell differentiation in Xenopus.

PMIDs: 41946567, 37116939