KRTAP20-4

keratin associated protein 20-4, the group of Keratin associated proteins

Basic information

Region (hg38): 21:30620626-30620850

Links

ENSG00000206105 ∙ NCBI:100151643 ∙ ∙ HGNC:34002 ∙ Uniprot:Q3LI62 ∙ AlphaFold ∙ GenCC ∙ jax ∙ Sfari ∙ GnomAD ∙ Pubmed ∙ ClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the KRTAP20-4 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the KRTAP20-4 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type	Pathogenic	Likely pathogenic	VUS	Likely benign	Benign	Sum
synonymous						0
missense						0
nonsense						0
start loss						0
frameshift						0
inframe indel						0
splice donor/acceptor (+/-2bp)						0
splice region						0
non coding						0
Total	0	0	0	0	0

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
KRTAP20-4	protein_coding	protein_coding	ENST00000382828	1	224

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	0.650	15	23.9	0.626	0.00000110	268
Missense in Polyphen		5	4.756	1.0513		34
Synonymous	0.0206	10	10.1	0.992	5.16e-7	98
Loss of Function

LoF frequencies by population

Ethnicity	Sum of pLOFs	p
African & African-American	0.00	0.00
Ashkenazi Jewish
East Asian
Finnish
European (Non-Finnish)
Middle Eastern
South Asian
Other

dbNSFP

Source: dbNSFP

• Function: FUNCTION: In the hair cortex, hair keratin intermediate filaments are embedded in an interfilamentous matrix, consisting of hair keratin-associated proteins (KRTAP), which are essential for the formation of a rigid and resistant hair shaft through their extensive disulfide bond cross-linking with abundant cysteine residues of hair keratins. The matrix proteins include the high- sulfur and high-glycine-tyrosine keratins (By similarity). {ECO:0000250}.

Haploinsufficiency Scores

• pHI: 0.0544
• ghis: 0.396

Essentials

• gene_indispensability_pred: N
• gene_indispensability_score: 0.114

Gene Damage Prediction

	All	Recessive	Dominant
Mendelian	Low	Low	Low
Primary Immunodeficiency	Low	Low	Low
Cancer	Low	Low	Low

Gene ontology

• Cellular component: intermediate filament