17-41008786-G-A

Variant summary

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

The NM_031958.2(KRTAP3-1):​c.289C>T​(p.Arg97Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000311 in 1,605,604 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 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

KRTAP3-1
NM_031958.2 missense

Scores

17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.260
Variant links:
Genes affected
KRTAP3-1 (HGNC:16778): (keratin associated protein 3-1) 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 high sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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=0.030096918).
BP6
Variant 17-41008786-G-A is Benign according to our data. Variant chr17-41008786-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2564209.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP3-1NM_031958.2 linkuse as main transcriptc.289C>T p.Arg97Cys missense_variant 1/1 ENST00000391588.3 NP_114164.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP3-1ENST00000391588.3 linkuse as main transcriptc.289C>T p.Arg97Cys missense_variant 1/1 NM_031958.2 ENSP00000375430 P1
KRTAP3-1ENST00000581033.1 linkuse as main transcriptn.391C>T non_coding_transcript_exon_variant 3/33

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000534
AC:
13
AN:
243558
Hom.:
0
AF XY:
0.0000457
AC XY:
6
AN XY:
131326
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000277
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000363
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000303
AC:
44
AN:
1453326
Hom.:
0
Cov.:
31
AF XY:
0.0000333
AC XY:
24
AN XY:
721670
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000450
Gnomad4 ASJ exome
AF:
0.0000392
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.000118
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000226
Gnomad4 OTH exome
AF:
0.0000500
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152278
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000143
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000577
AC:
7
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

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 GeneticsJun 06, 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
0.063
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
6.8
DANN
Benign
0.93
DEOGEN2
Benign
0.012
T
Eigen
Benign
-0.80
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.013
N
M_CAP
Benign
0.0040
T
MetaRNN
Benign
0.030
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.77
N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.030
N
REVEL
Benign
0.047
Sift
Benign
0.096
T
Sift4G
Benign
0.13
T
Polyphen
0.0
B
Vest4
0.20
MVP
0.12
MPC
0.017
ClinPred
0.10
T
GERP RS
0.70
Varity_R
0.060
gMVP
0.12

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs375741947; hg19: chr17-39165038; API