chr17-41041162-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_030967.3(KRTAP1-1):​c.236G>A​(p.Ser79Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,652 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

KRTAP1-1
NM_030967.3 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.961
Variant links:
Genes affected
KRTAP1-1 (HGNC:16772): (keratin associated protein 1-1) 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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10910761).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP1-1NM_030967.3 linkc.236G>A p.Ser79Asn missense_variant 1/1 ENST00000306271.5 NP_112229.1 Q07627

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP1-1ENST00000306271.5 linkc.236G>A p.Ser79Asn missense_variant 1/16 NM_030967.3 ENSP00000305975.4 Q07627

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.0000361
AC:
9
AN:
249370
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135312
show subpopulations
Gnomad AFR exome
AF:
0.000323
Gnomad AMR exome
AF:
0.000116
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:
0.00000684
AC:
10
AN:
1461424
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727026
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.000327
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
Alfa
AF:
0.0000282
Hom.:
0
ESP6500AA
AF:
0.000247
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000413
AC:
5

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 GeneticsMar 30, 2024The c.236G>A (p.S79N) alteration is located in exon 1 (coding exon 1) of the KRTAP1-1 gene. This alteration results from a G to A substitution at nucleotide position 236, causing the serine (S) at amino acid position 79 to be replaced by an asparagine (N). 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
0.17
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.091
T
Eigen
Benign
-0.23
Eigen_PC
Benign
-0.26
FATHMM_MKL
Benign
0.57
D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Pathogenic
3.4
M
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.093
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.018
D
Polyphen
0.15
B
Vest4
0.28
MVP
0.11
MPC
0.50
ClinPred
0.20
T
GERP RS
2.4
Varity_R
0.18
gMVP
0.063

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: rs370317802; hg19: chr17-39197414; API