12-52573334-G-C

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_175053.4(KRT74):​c.444C>G​(p.Asn148Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,050 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: 6.8e-7 ( 0 hom. )

Consequence

KRT74
NM_175053.4 missense

Scores

10
6
3

Clinical Significance

Pathogenic no assertion criteria provided P:1O:1

Conservation

PhyloP100: 1.46

Publications

4 publications found
Variant links:
Genes affected
KRT74 (HGNC:28929): (keratin 74) Keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into epithelial keratins and hair keratins. This protein belongs to a family of keratins that are specifically expressed in the inner root sheath of hair follicles.[provided by RefSeq, Jun 2009]
KRT74 Gene-Disease associations (from GenCC):
  • autosomal dominant wooly hair
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hypotrichosis 3
    Inheritance: AD Classification: MODERATE Submitted by: G2P
  • hypotrichosis simplex of the scalp
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • isolated familial wooly hair disorder
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • pure hair and nail ectodermal dysplasia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.99
PP5
Variant 12-52573334-G-C is Pathogenic according to our data. Variant chr12-52573334-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 2460.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KRT74NM_175053.4 linkc.444C>G p.Asn148Lys missense_variant Exon 1 of 9 ENST00000305620.3 NP_778223.2 Q7RTS7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KRT74ENST00000305620.3 linkc.444C>G p.Asn148Lys missense_variant Exon 1 of 9 1 NM_175053.4 ENSP00000307240.2 Q7RTS7
KRT74ENST00000549343.5 linkc.444C>G p.Asn148Lys missense_variant Exon 1 of 10 5 ENSP00000447447.1 F8W1S1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461884
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112004
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
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

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:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41432
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.00
Hom.:
0

ClinVar

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

Submissions by phenotype

Autosomal dominant wooly hair Pathogenic:1
Apr 09, 2010
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Other:1
-
Epithelial Biology; Institute of Medical Biology, Singapore
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.87
D;D
Eigen
Benign
-0.056
Eigen_PC
Benign
-0.31
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.97
D;D
M_CAP
Uncertain
0.28
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Pathogenic
4.3
.;H
PhyloP100
1.5
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-5.8
D;D
REVEL
Uncertain
0.56
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
.;D
Vest4
0.97
MutPred
0.85
Loss of ubiquitination at K150 (P = 0.027);Loss of ubiquitination at K150 (P = 0.027);
MVP
0.61
MPC
0.42
ClinPred
1.0
D
GERP RS
-3.5
PromoterAI
-0.014
Neutral
Varity_R
0.62
gMVP
0.85
Mutation Taster
=19/81
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs267607205; hg19: chr12-52967118; API