rs370994947

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_004568.6(SERPINB6):c.313-5C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000338 in 1,603,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00035 ( 0 hom. )

Consequence

SERPINB6
NM_004568.6 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.0001842

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.359

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 6-2954714-G-C is Benign according to our data. Variant chr6-2954714-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 504675.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SERPINB6	NM_004568.6 linkuse as main transcript	c.313-5C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000380539.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SERPINB6	ENST00000380539.7 linkuse as main transcript	c.313-5C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		3	NM_004568.6	P1

Frequencies

GnomAD3 genomes

AF:

0.000178

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.000864

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000350

AC:

AN:

251316

Hom.:

AF XY:

0.000383

AC XY:

AN XY:

135846

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.000298

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000422

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000355

AC:

515

AN:

1451128

Hom.:

Cov.:

AF XY:

0.000394

AC XY:

285

AN XY:

722530

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.000230

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00115

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.000349

Gnomad4 OTH exome

AF:

0.000283

GnomAD4 genome

AF:

0.000177

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74410

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.000864

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000829

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000268

Hom.:

Bravo

AF:

0.000178

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000382

EpiControl

AF:

0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	May 11, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Oct 22, 2023	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 18, 2016

Variant classified as Uncertain Significance - Favor Benign. The c.313-5C>G vari ant in SERPINB6 has been reported in 1 individual with hearing loss; however it did not segregate with disease in the family (Sirmaci 2010). This variant has al so been identified in 0.1% (16/16492) of South Asian chromosomes by the Exome Ag gregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs370994947). Although this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. This variant is located in the 3' splice region. Computational tools do not suggest an impact to splicing. Howeve r, this information is not predictive enough to rule out pathogenicity. In summa ry, while the clinical significance of the c.313-5C>G variant is uncertain, thes e data suggest that it is more likely to be benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

Cadd

Benign

5.6

Dann

Benign

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00018

dbscSNV1_RF

Benign

0.068

SpliceAI score (max)

0.34

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.34

Position offset: -5

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