17-40660027-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_152349.3(KRT222):ā€‹c.406A>Gā€‹(p.Ile136Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,614,076 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000033 ( 0 hom., cov: 31)
Exomes š‘“: 0.0000041 ( 0 hom. )

Consequence

KRT222
NM_152349.3 missense

Scores

7
10
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.93
Variant links:
Genes affected
KRT222 (HGNC:28695): (keratin 222) Predicted to enable structural molecule activity. Predicted to be located in intermediate filament. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRT222NM_152349.3 linkuse as main transcriptc.406A>G p.Ile136Val missense_variant 3/6 ENST00000394052.5 NP_689562.1 Q8N1A0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRT222ENST00000394052.5 linkuse as main transcriptc.406A>G p.Ile136Val missense_variant 3/61 NM_152349.3 ENSP00000377616.3 Q8N1A0-1
ENSG00000264058ENST00000476049.1 linkuse as main transcriptn.406A>G non_coding_transcript_exon_variant 3/135 ENSP00000463483.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000963
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:
0.0000239
AC:
6
AN:
251472
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000326
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:
0.00000410
AC:
6
AN:
1461886
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
31
AF XY:
0.0000538
AC XY:
4
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000963
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

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 GeneticsNov 17, 2023The c.406A>G (p.I136V) alteration is located in exon 3 (coding exon 3) of the KRT222 gene. This alteration results from a A to G substitution at nucleotide position 406, causing the isoleucine (I) at amino acid position 136 to be replaced by a valine (V). 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
0.53
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.33
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Pathogenic
3.1
M
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.90
N
REVEL
Pathogenic
0.77
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.060
T
Polyphen
0.73
P
Vest4
0.70
MutPred
0.69
Loss of phosphorylation at Y139 (P = 0.2058);
MVP
0.83
MPC
0.44
ClinPred
0.77
D
GERP RS
5.8
Varity_R
0.36
gMVP
0.62

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: rs753942639; hg19: chr17-38816279; API