Genetic Variant KRTAP5-8:p.Ala44Val (chr11-71538186-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_021046.3(KRTAP5-8):c.131C>T(p.Ala44Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

KRTAP5-8
NM_021046.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.156

Publications

0 publications found

Variant links:

Genes affected

KRTAP5-8 (HGNC:23603): (keratin associated protein 5-8) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP5-8 links:

ENSG00000307649 (HGNC:):

ENSG00000307649 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.053763717).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021046.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRTAP5-8	NM_021046.3	MANE Select	c.131C>T	p.Ala44Val	missense	Exon 1 of 1	NP_066384.2	O75690

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KRTAP5-8	ENST00000398534.4	TSL:6 MANE Select	c.131C>T	p.Ala44Val	missense	Exon 1 of 1	ENSP00000420723.1	O75690
ENSG00000307649	ENST00000827665.1		n.-70G>A		upstream_gene	N/A
ENSG00000307649	ENST00000827666.1		n.-110G>A		upstream_gene	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000400

AC:

AN:

250096

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461066

Hom.:

Cov.:

146

AF XY:

0.00

AC XY:

AN XY:

726828

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33452

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86214

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5120

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111984

Other (OTH)

AF:

0.0000166

AC:

AN:

60326

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.015

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.0038

LIST_S2

Benign

0.30

M_CAP

Benign

0.0029

MetaRNN

Benign

0.054

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.86

PhyloP100

0.16

PROVEAN

Benign

-1.8

REVEL

Benign

0.051

Sift

Uncertain

0.0060

Sift4G

Benign

0.54

Polyphen

0.0010

Vest4

0.12

MutPred

0.26

Loss of phosphorylation at S49 (P = 0.2618)

MVP

0.048

MPC

0.045

ClinPred

0.11

GERP RS

0.62

PromoterAI

-0.0058

Neutral

(source)

Varity_R

0.094

gMVP

0.024

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over