17-41149310-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_033188.4(KRTAP4-5):​c.458G>A​(p.Arg153Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,610,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

KRTAP4-5
NM_033188.4 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -4.11
Variant links:
Genes affected
KRTAP4-5 (HGNC:18899): (keratin associated protein 4-5) This protein is a member of the keratin-associated protein (KAP) family. The KAP proteins form a matrix of keratin intermediate filaments which contribute to the structure of hair fibers. KAP family members appear to have unique, family-specific amino- and carboxyl-terminal regions and are subdivided into three multi-gene families according to amino acid composition: the high sulfur, the ultrahigh sulfur, and the high tyrosine/glycine KAPs. This protein is a member of the ultrahigh sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.025701463).
BP6
Variant 17-41149310-C-T is Benign according to our data. Variant chr17-41149310-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2469368.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-5NM_033188.4 linkuse as main transcriptc.458G>A p.Arg153Gln missense_variant 1/1 ENST00000343246.6 NP_149445.3 Q9BYR2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP4-5ENST00000343246.6 linkuse as main transcriptc.458G>A p.Arg153Gln missense_variant 1/16 NM_033188.4 ENSP00000340546.4 Q9BYR2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152140
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000459
AC:
1
AN:
217734
Hom.:
0
AF XY:
0.00000854
AC XY:
1
AN XY:
117144
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000327
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000549
AC:
8
AN:
1457824
Hom.:
0
Cov.:
29
AF XY:
0.00000828
AC XY:
6
AN XY:
724820
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000228
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152258
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsFeb 27, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.078
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
0.41
DANN
Benign
0.96
DEOGEN2
Benign
0.0023
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.0015
N
LIST_S2
Benign
0.069
T
M_CAP
Benign
0.0015
T
MetaRNN
Benign
0.026
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.0
N
PROVEAN
Benign
-0.090
N
REVEL
Benign
0.038
Sift
Benign
0.45
T
Sift4G
Benign
0.62
T
Vest4
0.049
MVP
0.072
MPC
0.16
ClinPred
0.042
T
GERP RS
-6.7
Varity_R
0.019
gMVP
0.060

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs540437836; hg19: chr17-39305562; API