17-41117985-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_033059.4(KRTAP4-11):​c.331C>T​(p.Arg111Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000436 in 1,491,592 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 3 hom., cov: 30)
Exomes 𝑓: 0.000029 ( 4 hom. )

Consequence

KRTAP4-11
NM_033059.4 missense

Scores

3
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -5.55
Variant links:
Genes affected
KRTAP4-11 (HGNC:18911): (keratin associated protein 4-11) 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, Mar 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.057758152).
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-11NM_033059.4 linkuse as main transcriptc.331C>T p.Arg111Cys missense_variant 1/1 ENST00000391413.4 NP_149048.2 Q9BYQ6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP4-11ENST00000391413.4 linkuse as main transcriptc.331C>T p.Arg111Cys missense_variant 1/16 NM_033059.4 ENSP00000375232.2 Q9BYQ6

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
26
AN:
147292
Hom.:
3
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.000663
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000201
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:
0.0000527
AC:
13
AN:
246712
Hom.:
1
AF XY:
0.0000521
AC XY:
7
AN XY:
134448
show subpopulations
Gnomad AFR exome
AF:
0.0000696
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000610
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000894
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000290
AC:
39
AN:
1344300
Hom.:
4
Cov.:
196
AF XY:
0.0000347
AC XY:
23
AN XY:
663422
show subpopulations
Gnomad4 AFR exome
AF:
0.000242
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000337
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.0000554
GnomAD4 genome
AF:
0.000177
AC:
26
AN:
147292
Hom.:
3
Cov.:
30
AF XY:
0.000209
AC XY:
15
AN XY:
71882
show subpopulations
Gnomad4 AFR
AF:
0.000663
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000201
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000253
Hom.:
0
Bravo
AF:
0.000159
ExAC
AF:
0.0000603
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 08, 2023The c.331C>T (p.R111C) alteration is located in exon 1 (coding exon 1) of the KRTAP4-11 gene. This alteration results from a C to T substitution at nucleotide position 331, causing the arginine (R) at amino acid position 111 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
14
DANN
Benign
0.97
DEOGEN2
Benign
0.019
T
Eigen
Benign
-0.68
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.19
T
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.058
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Pathogenic
3.3
M
PrimateAI
Benign
0.19
T
PROVEAN
Pathogenic
-5.7
D
REVEL
Benign
0.058
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0080
D
Polyphen
0.46
P
Vest4
0.11
MVP
0.18
MPC
0.0083
ClinPred
0.34
T
GERP RS
-2.4
Varity_R
0.38
gMVP
0.077

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs764509292; hg19: chr17-39274237; API