17-41117996-G-A

Variant summary

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

The NM_033059.4(KRTAP4-11):​c.320C>T​(p.Ser107Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000169 in 1,480,510 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0000060 ( 0 hom. )

Consequence

KRTAP4-11
NM_033059.4 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.14
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 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=0.14597622).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-11NM_033059.4 linkuse as main transcriptc.320C>T p.Ser107Phe 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.320C>T p.Ser107Phe missense_variant 1/16 NM_033059.4 ENSP00000375232.2 Q9BYQ6

Frequencies

GnomAD3 genomes
AF:
0.000116
AC:
17
AN:
146868
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.000400
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000675
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:
0.000495
GnomAD3 exomes
AF:
0.00000405
AC:
1
AN:
246682
Hom.:
0
AF XY:
0.00000744
AC XY:
1
AN XY:
134430
show subpopulations
Gnomad AFR exome
AF:
0.0000696
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000600
AC:
8
AN:
1333546
Hom.:
0
Cov.:
197
AF XY:
0.00000456
AC XY:
3
AN XY:
657204
show subpopulations
Gnomad4 AFR exome
AF:
0.000104
Gnomad4 AMR exome
AF:
0.00
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:
0.00000193
Gnomad4 OTH exome
AF:
0.0000559
GnomAD4 genome
AF:
0.000116
AC:
17
AN:
146964
Hom.:
0
Cov.:
29
AF XY:
0.000125
AC XY:
9
AN XY:
71808
show subpopulations
Gnomad4 AFR
AF:
0.000399
Gnomad4 AMR
AF:
0.0000674
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:
0.000490
Alfa
AF:
0.000285
Hom.:
0
ExAC
AF:
0.0000257
AC:
3

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 06, 2023The c.320C>T (p.S107F) 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 320, causing the serine (S) at amino acid position 107 to be replaced by a phenylalanine (F). 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
Uncertain
0.41
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.12
T
Eigen
Benign
0.12
Eigen_PC
Benign
0.10
FATHMM_MKL
Benign
0.28
N
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.0056
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.9
H
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.10
Sift
Uncertain
0.013
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.45
B
Vest4
0.19
MVP
0.34
MPC
0.0086
ClinPred
0.48
T
GERP RS
4.3
Varity_R
0.14
gMVP
0.062

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs762322240; hg19: chr17-39274248; COSMIC: COSV101194909; API