rs1438087533

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 5P and 1B. PP3_StrongPP5BS2_Supporting

The NM_002282.3(KRT83):​c.1252G>A​(p.Glu418Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,612,550 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

KRT83
NM_002282.3 missense

Scores

10
8
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 6.08

Publications

2 publications found
Variant links:
Genes affected
KRT83 (HGNC:6460): (keratin 83) 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 hair keratin, as well as KRTHB1 and KRTHB6, is found primarily in the hair cortex. [provided by RefSeq, Jul 2008]
KRT83 Gene-Disease associations (from GenCC):
  • monilethrix
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
  • erythrokeratodermia variabilis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.952
PP5
Variant 12-52315903-C-T is Pathogenic according to our data. Variant chr12-52315903-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 446110.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KRT83NM_002282.3 linkc.1252G>A p.Glu418Lys missense_variant Exon 7 of 9 ENST00000293670.3 NP_002273.3 P78385

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KRT83ENST00000293670.3 linkc.1252G>A p.Glu418Lys missense_variant Exon 7 of 9 1 NM_002282.3 ENSP00000293670.3 P78385
ENSG00000296556ENST00000740301.1 linkn.506+4271C>T intron_variant Intron 1 of 1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152240
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460192
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
726410
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33418
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86188
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4524
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111854
Other (OTH)
AF:
0.00
AC:
0
AN:
60240
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74502
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41592
American (AMR)
AF:
0.00
AC:
0
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Monilethrix-3 Pathogenic:1
Mar 01, 2005
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.46
BayesDel_addAF
Pathogenic
0.47
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.72
D
Eigen
Pathogenic
0.74
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.37
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.4
M
PhyloP100
6.1
PrimateAI
Uncertain
0.78
T
PROVEAN
Uncertain
-3.6
D
REVEL
Pathogenic
0.96
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.043
D
Polyphen
0.97
D
Vest4
0.95
MutPred
0.80
Gain of catalytic residue at L422 (P = 0.003);
MVP
0.68
MPC
0.42
ClinPred
1.0
D
GERP RS
3.8
Varity_R
0.82
gMVP
0.66
Mutation Taster
=65/35
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1438087533; hg19: chr12-52709687; COSMIC: COSV104540514; API