TLK2

Chr 17AD

tousled like kinase 2

Also known as: HsHPK, MRD57, PKU-ALPHA

This gene encodes a nuclear serine/threonine kinase that was first identified in Arabidopsis. The encoded protein is thought to function in the regulation of chromatin assembly in the S phase of the cell cycle by regulating the levels of a histone H3/H4 chaperone. This protein is associated with double-strand break repair of DNA damage caused by radiation. Pseudogenes of this gene are present on chromosomes 10 and 17. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

OMIMResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

Intellectual developmental disorder, autosomal dominant 57MIM #618050
AD

Clinical highlights

Gene-disease validity (ClinGen)
complex neurodevelopmental disorder · ADDefinitivesufficient evidence for diagnostic panels
Interpreting a novel variant
Loss of function is the curated mechanism (Gene2Phenotype) and the gene is intolerant of it in the population — truncating, frameshift and canonical splice variants carry more prior weight here than missense.Curated gene-level mechanism — a prior for triage, not a per-variant call.
1
Active trials
14
Pubs (1 yr)
P/LP submissions
P/LP missense
0.11
LOEUF· LoF intol.
LOF
Mechanism· G2P

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Dual constrained — LoF & missense intolerant
LoF Constraint?
0.11LOEUF
pLI 1.000
Z-score 6.62
OE 0.04 (0.010.11)
Highly constrained

Among the most LoF-intolerant genes (~top 3%)

Missense Constraint?
4.49Z-score
OE missense 0.37 (0.320.42)
148 obs / 401.1 exp
Constrained

Highly missense-constrained (top ~0.1%)

Observed / Expected Ratios?
LoF OE?0.04 (0.010.11)
00.351.4
Missense OE?0.37 (0.320.42)
00.61.4
Synonymous OE?1.00
01.21.6
LoF obs/exp: 2 / 55.0Missense obs/exp: 148 / 401.1Syn Z: 0.03

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

TLK2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.