KLHL42
protein-codingkelch like family member 42, the group of Kelch like
Gene summary
Contributes to ubiquitin-protein transferase activity. Involved in proteasome-mediated ubiquitin-dependent protein catabolic process; protein polyubiquitination; and regulation of microtubule-based process. Part of Cul3-RING ubiquitin ligase complex. [provided by Alliance of Genome Resources, Jul 2025]
- KLHDC5
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~23.0 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to KLHL42 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_020782.2. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 38 | 38 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 40 | 0 | 0 | 40 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_065833.1 | 3 | MANE Select | |
| Ensembl | ENSP00000370671.2 | 3 | MANE Select | |
| Ensembl | ENSP00000444748.1 | 3 | Standard | |
| Ensembl | ENSP00000443934.1 | 2 | Standard |
Model Organisms & Knockout Phenotypes
Observed phenotypic effects in mouse and zebrafish models
| Gene / Model | Organism | Observed Phenotype |
|---|---|---|
| klhl42 | Danio rerio | Structure: pancreatic B cell Quality: decreased area abnormal |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Post-translational protein modification
- Metabolism of proteins
- Immune System
- Adaptive Immune System
- Antigen processing: Ubiquitination & Proteasome degradation
Biological Process
- protein polyubiquitination
- cell cycle
- regulation of microtubule-based process
- proteasome-mediated ubiquitin-dependent protein catabolic process
- post-translational protein modification
Molecular Function
- ubiquitin-protein transferase activity
- protein binding
Cellular Component
- spindle
- cytosol
- Cul3-RING ubiquitin ligase complex
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000381271
- Coding exons
- 3
- Length
- 23021
- Individuals with no LoFs
- 125733
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 15
- Defined
- 125748
- p
- 0.0000596
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.54 | 217 | 291 | 0.746 | 0.0000156 | 3260 |
| Missense (PolyPhen) | 73 | 104.4 | 0.69924 | 1202 | ||
| Synonymous | 0.0597 | 131 | 132 | 0.993 | 0.00000776 | 1039 |
| Loss of Function | 2.37 | 6 | 16.3 | 0.367 | 7.84e-7 | 179 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000029 | 0.000029 | rare |
| Ashkenazi Jewish | 0.000099 | 0.000099 | rare |
| East Asian | 0.00011 | 0.00011 | rare |
| Finnish | 0.00014 | 0.00014 | rare |
| European (Non-Finnish) | 0.000053 | 0.000053 | rare |
| South Asian | 0.000033 | 0.000033 | rare |
| Other | 0.00016 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Substrate-specific adapter of a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex required for mitotic progression and cytokinesis. The BCR(KLHL42) E3 ubiquitin ligase complex mediates the ubiquitination and subsequent degradation of KATNA1. Involved in microtubule dynamics throughout mitosis. {ECO:0000269|PubMed:19261606}.;
Recessive Scores
- pRec
- 0.109
Intolerance Scores
- RVIS EVS
- -0.47
- RVIS percentile EVS
- 23.04
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- S
- Essential (gene trap)
- N
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |