Genetic Variant SERPINB6:p.Tyr42Phe (chr6-2959208-T-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004568.6(SERPINB6):c.125A>T(p.Tyr42Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y42S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SERPINB6
NM_004568.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0560

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 91
Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
nonsyndromic genetic hearing loss
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SERPINB6 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07592136).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004568.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SERPINB6	NM_004568.6	MANE Select	c.125A>T	p.Tyr42Phe	missense	Exon 2 of 7	NP_004559.4
SERPINB6	NM_001271823.2		c.182A>T	p.Tyr61Phe	missense	Exon 2 of 7	NP_001258752.1	A0A087X1N8
SERPINB6	NM_001271822.2		c.167A>T	p.Tyr56Phe	missense	Exon 2 of 7	NP_001258751.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SERPINB6	ENST00000380539.7	TSL:3 MANE Select	c.125A>T	p.Tyr42Phe	missense	Exon 2 of 7	ENSP00000369912.2	P35237
SERPINB6	ENST00000380520.6	TSL:1	c.125A>T	p.Tyr42Phe	missense	Exon 2 of 7	ENSP00000369891.1	P35237
SERPINB6	ENST00000380524.5	TSL:1	c.125A>T	p.Tyr42Phe	missense	Exon 2 of 7	ENSP00000369896.1	P35237

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.39

CADD

Benign

8.3

(source)

DANN

Benign

0.55

DEOGEN2

Benign

0.15

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.012

LIST_S2

Benign

0.75

M_CAP

Benign

0.014

MetaRNN

Benign

0.076

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.10

PhyloP100

-0.056

PrimateAI

Benign

0.31

PROVEAN

Benign

0.88

REVEL

Benign

0.20

Sift

Benign

0.53

Sift4G

Benign

0.64

Polyphen

0.0

Vest4

0.065

MutPred

0.66

Gain of ubiquitination at K46 (P = 0.1204)

MVP

0.33

MPC

0.088

ClinPred

0.018

GERP RS

-4.4

Varity_R

0.052

gMVP

0.066

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over