Genetic Variant SERPINB6:p.Ala294Asp (chr6-2948548-G-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_004568.6(SERPINB6):c.881C>A(p.Ala294Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,886 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: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SERPINB6
NM_004568.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.44

Variant links:

Genes affected

SERPINB6 (HGNC:8950): (serpin family B member 6) The protein encoded by this gene is a member of the serpin (serine proteinase inhibitor) superfamily, and ovalbumin(ov)-serpin subfamily. It was originally discovered as a placental thrombin inhibitor. The mouse homolog was found to be expressed in the hair cells of the inner ear. Mutations in this gene are associated with nonsyndromic progressive hearing loss, suggesting that this serpin plays an important role in the inner ear in the protection against leakage of lysosomal content during stress, and that loss of this protection results in cell death and sensorineural hearing loss. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2010]

SERPINB6 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.969

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SERPINB6	NM_004568.6 link	c.881C>A	p.Ala294Asp	missense_variant	Exon 7 of 7	ENST00000380539.7	NP_004559.4	P35237A0A024QZX3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINB6	ENST00000380539.7 link	c.881C>A	p.Ala294Asp	missense_variant	Exon 7 of 7	3	NM_004568.6	ENSP00000369912.2		P35237

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251492

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000217

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 30, 2020

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Uncertain

0.026

BayesDel_noAF

Uncertain

0.090

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

D;D;D;D;D;D;D;T;T;.;D;D;T

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.080

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.74

.;.;.;.;.;.;.;T;.;T;.;T;T

M_CAP

Pathogenic

0.31

MetaRNN

Pathogenic

0.97

D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.63

MutationAssessor

Pathogenic

4.3

H;H;H;H;H;H;H;.;.;.;H;H;.

PrimateAI

Benign

0.42

PROVEAN

Pathogenic

-5.1

D;D;D;D;.;D;.;.;.;.;.;D;.

REVEL

Uncertain

0.64

Sift

Uncertain

0.0020

D;D;D;D;.;D;.;.;.;.;.;D;.

Sift4G

Uncertain

0.0040

D;D;D;D;.;D;.;D;.;.;.;D;.

Polyphen

0.99

D;D;D;D;D;D;D;.;.;.;D;D;.

Vest4

0.81

MutPred

0.87

Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);.;.;.;Gain of disorder (P = 0.026);Gain of disorder (P = 0.026);.;

MVP

0.96

MPC

0.61

ClinPred

0.98

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.95

gMVP

0.97

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