12-52590927-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_080747.3(KRT72):​c.998G>A​(p.Gly333Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000963 in 1,453,484 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

KRT72
NM_080747.3 missense

Scores

2
12
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.99
Variant links:
Genes affected
KRT72 (HGNC:28932): (keratin 72) Keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells. The type II keratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. This gene encodes a type II keratin that is specifically expressed in the inner root sheath of hair follicles. The type II keratins are clustered in a region of chromosome 12q12-q13. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jun 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.765

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRT72NM_080747.3 linkuse as main transcriptc.998G>A p.Gly333Glu missense_variant 6/9 ENST00000293745.7 NP_542785.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRT72ENST00000293745.7 linkuse as main transcriptc.998G>A p.Gly333Glu missense_variant 6/91 NM_080747.3 ENSP00000293745 P1Q14CN4-1
KRT72ENST00000537672.6 linkuse as main transcriptc.998G>A p.Gly333Glu missense_variant 6/102 ENSP00000441160 P1Q14CN4-1
KRT72ENST00000354310.4 linkuse as main transcriptc.963+537G>A intron_variant 2 ENSP00000346269 Q14CN4-3
KRT72ENST00000550829.1 linkuse as main transcriptc.*687G>A 3_prime_UTR_variant, NMD_transcript_variant 7/102 ENSP00000446881

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000963
AC:
14
AN:
1453484
Hom.:
0
Cov.:
31
AF XY:
0.0000166
AC XY:
12
AN XY:
722570
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:
0.0000127
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

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 GeneticsMay 26, 2022The c.998G>A (p.G333E) alteration is located in exon 6 (coding exon 6) of the KRT72 gene. This alteration results from a G to A substitution at nucleotide position 998, causing the glycine (G) at amino acid position 333 to be replaced by a glutamic acid (E). 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
0.36
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
-0.020
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T;T
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.72
.;T
M_CAP
Benign
0.043
D
MetaRNN
Pathogenic
0.76
D;D
MetaSVM
Uncertain
0.31
D
MutationAssessor
Uncertain
2.5
M;M
MutationTaster
Benign
0.98
D;D;D;D
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-7.4
D;D
REVEL
Uncertain
0.46
Sift
Uncertain
0.015
D;D
Sift4G
Uncertain
0.032
D;D
Polyphen
1.0
D;D
Vest4
0.53
MutPred
0.65
Gain of catalytic residue at A329 (P = 0.0266);Gain of catalytic residue at A329 (P = 0.0266);
MVP
0.67
MPC
0.35
ClinPred
0.99
D
GERP RS
5.1
Varity_R
0.65
gMVP
0.45

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: rs1939986122; hg19: chr12-52984711; COSMIC: COSV105123877; API