KRT84
protein-codingkeratin 84, the group of Keratins, type II
Gene summary
The protein encoded by this gene is a member of the keratin gene family. As a type II hair keratin, it is a basic protein which heterodimerizes with type I keratins to form hair and nails. The type II hair keratins are clustered in a region of chromosome 12q13 and are grouped into two distinct subfamilies based on structure similarity. One subfamily, consisting of KRTHB1, KRTHB3, and KRTHB6, is highly related. The other less-related subfamily includes KRTHB2, KRTHB4, and KRTHB5. All hair keratins are expressed in the hair follicle; this hair keratin is contained primarily in the filiform tongue papilla, among other hair keratins. [provided by RefSeq, Jul 2008]
- KRTHB4
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~7.8 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 KRT84 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_033045.4. 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 | 114 | 7 | 121 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 114 | 8 | 0 | 122 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_149034.2 | 9 | MANE Select | |
| Ensembl | ENSP00000257951.3 | 9 | MANE Select | |
| RefSeq | XP_011536637.1 | 9 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Keratinization
- Developmental Biology
Biological Process
- hair follicle development
- cytoskeleton organization
- keratinization
- nail development
- regulation of keratinocyte differentiation
Molecular Function
- structural constituent of cytoskeleton
- structural constituent of epidermis
Cellular Component
- cytosol
- keratin filament
- extracellular exosome
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000257951
- Coding exons
- 9
- Length
- 7841
- Individuals with no LoFs
- 125661
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 87
- Defined
- 125748
- p
- 0.000346
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -1.22 | 408 | 344 | 1.19 | 0.0000211 | 3874 |
| Missense (PolyPhen) | 140 | 123.23 | 1.1361 | 1438 | ||
| Synonymous | -0.174 | 141 | 138 | 1.02 | 0.00000826 | 1236 |
| Loss of Function | 1.03 | 17 | 22.3 | 0.763 | 0.00000103 | 265 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.0028 | 0.0028 | notable |
| Latino/Admixed American | 0.00023 | 0.00023 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00011 | 0.00011 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.00022 | 0.00022 | rare |
| South Asian | 0.00020 | 0.00020 | rare |
| Other | 0.00016 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
Recessive Scores
- pRec
- 0.122
Intolerance Scores
- LoFtool
- 0.199
- RVIS EVS
- 1.38
- RVIS percentile EVS
- 94.62
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.588
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | High | High | High |
| Primary Immunodeficiency | High | High | High |
| Cancer | High | High | High |