Variant 17-40863130-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_000223.4(KRT12):c.1309G>A(p.Ala437Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

KRT12
NM_000223.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.519

Variant links:

Genes affected

KRT12 (HGNC:6414): (keratin 12) KRT12 encodes the type I intermediate filament chain keratin 12, expressed in corneal epithelia. Mutations in this gene lead to Meesmann corneal dystrophy. [provided by RefSeq, Jul 2008]

KRT12 links:

(HGNC:):

links:

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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=0.090087205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KRT12	NM_000223.4 linkuse as main transcript	c.1309G>A	p.Ala437Thr	missense_variant	6/8	ENST00000251643.5
LOC105371777	XR_934754.3 linkuse as main transcript	n.63+12270C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
KRT12	ENST00000251643.5 linkuse as main transcript	c.1309G>A	p.Ala437Thr	missense_variant	6/8	1	NM_000223.4	P1
	ENST00000579136.1 linkuse as main transcript	n.106C>T		non_coding_transcript_exon_variant	2/2	3
KRT12	ENST00000648535.1 linkuse as main transcript	n.601G>A		non_coding_transcript_exon_variant	1/2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000800

AC:

AN:

249980

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135432

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461688

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727160

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

Cov.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 13, 2021

The c.1309G>A (p.A437T) alteration is located in exon 6 (coding exon 6) of the KRT12 gene. This alteration results from a G to A substitution at nucleotide position 1309, causing the alanine (A) at amino acid position 437 to be replaced by a threonine (T). 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

0.067

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.35

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.29

T;T

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.69

FATHMM_MKL

Benign

0.10

M_CAP

Benign

0.073

MetaRNN

Benign

0.090

T;T

MetaSVM

Benign

-0.46

MutationAssessor

Benign

1.6

L;L

MutationTaster

Benign

1.0

PrimateAI

Benign

0.26

Polyphen

0.064

B;B

Vest4

0.16

MutPred

0.39

Gain of phosphorylation at A437 (P = 0.0357);Gain of phosphorylation at A437 (P = 0.0357);

MVP

0.38

MPC

1.0

ClinPred

0.058

GERP RS

0.28

Varity_R

0.076

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over