chr12-52396906-C-T

Variant summary

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

The NM_033033.4(KRT82):​c.1045G>A​(p.Glu349Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000316 in 1,614,172 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

KRT82
NM_033033.4 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.41
Variant links:
Genes affected
KRT82 (HGNC:6459): (keratin 82) The protein encoded by this gene is a member of the keratin gene family. As a type II hair keratin, it is a basic protein which heterodimerizes with type I keratins to form hair and nails. The type II hair keratins are clustered in a region of chromosome 12q13 and are grouped into two distinct subfamilies based on structure similarity. One subfamily, consisting of KRTHB1, KRTHB3, and KRTHB6, is highly related. The other less-related subfamily includes KRTHB2, KRTHB4, and KRTHB5. All hair keratins are expressed in the hair follicle; this keratin appears to be a hair cuticle-specific keratin. [provided by RefSeq, Jul 2008]

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
KRT82NM_033033.4 linkuse as main transcriptc.1045G>A p.Glu349Lys missense_variant 6/9 ENST00000257974.3 NP_149022.3 Q9NSB4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRT82ENST00000257974.3 linkuse as main transcriptc.1045G>A p.Glu349Lys missense_variant 6/91 NM_033033.4 ENSP00000257974.3 Q9NSB4
ENSG00000258253ENST00000547174.1 linkuse as main transcriptn.147-5086C>T intron_variant 4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152228
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:
0.000384
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:
0.0000637
AC:
16
AN:
251350
Hom.:
0
AF XY:
0.0000810
AC XY:
11
AN XY:
135860
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000489
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000328
AC:
48
AN:
1461826
Hom.:
0
Cov.:
31
AF XY:
0.0000399
AC XY:
29
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000605
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152346
Hom.:
0
Cov.:
31
AF XY:
0.0000268
AC XY:
2
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000578
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000906
AC:
11

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 GeneticsJun 29, 2023The c.1045G>A (p.E349K) alteration is located in exon 6 (coding exon 6) of the KRT82 gene. This alteration results from a G to A substitution at nucleotide position 1045, causing the glutamic acid (E) at amino acid position 349 to be replaced by a lysine (K). 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
0.28
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.21
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.51
D
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.072
D
MetaRNN
Uncertain
0.70
D
MetaSVM
Uncertain
0.31
D
MutationAssessor
Pathogenic
3.1
M
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.7
D
REVEL
Uncertain
0.42
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.018
D
Polyphen
0.56
P
Vest4
0.36
MutPred
0.76
Gain of MoRF binding (P = 0.0066);
MVP
0.77
MPC
0.11
ClinPred
0.51
D
GERP RS
4.8
Varity_R
0.59
gMVP
0.57

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: rs780297338; hg19: chr12-52790690; COSMIC: COSV105858099; API