17-40656613-T-C

Variant summary

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

The NM_152349.3(KRT222):ā€‹c.677A>Gā€‹(p.Glu226Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000117 in 1,447,274 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.000012 ( 0 hom. )

Consequence

KRT222
NM_152349.3 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.52
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2278359).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRT222NM_152349.3 linkuse as main transcriptc.677A>G p.Glu226Gly missense_variant 6/6 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.677A>G p.Glu226Gly missense_variant 6/61 NM_152349.3 ENSP00000377616.3 Q8N1A0-1
ENSG00000264058ENST00000476049.1 linkuse as main transcriptn.677A>G non_coding_transcript_exon_variant 6/135 ENSP00000463483.1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250746
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135772
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000117
AC:
17
AN:
1447274
Hom.:
0
Cov.:
27
AF XY:
0.0000139
AC XY:
10
AN XY:
721008
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000155
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
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 GeneticsOct 03, 2024The c.677A>G (p.E226G) alteration is located in exon 6 (coding exon 6) of the KRT222 gene. This alteration results from a A to G substitution at nucleotide position 677, causing the glutamic acid (E) at amino acid position 226 to be replaced by a glycine (G). 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
0.22
BayesDel_addAF
Uncertain
0.021
T
BayesDel_noAF
Benign
-0.14
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.068
T
Eigen
Benign
0.041
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.23
T
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Benign
1.1
L
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-1.8
N
REVEL
Uncertain
0.38
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.015
D
Polyphen
0.18
B
Vest4
0.20
MutPred
0.26
Gain of helix (P = 0.0696);
MVP
0.86
MPC
0.28
ClinPred
0.68
D
GERP RS
5.8
Varity_R
0.15
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs779525223; hg19: chr17-38812865; COSMIC: COSV101229482; COSMIC: COSV101229482; API