dbSNP rs143645714: ESPN:p.Pro350Arg (chr1-6444539-C-G) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_031475.3(ESPN):c.1049C>G(p.Pro350Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00023 in 1,614,226 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P350S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00024 ( 4 hom. )

Consequence

ESPN
NM_031475.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 1.72

Publications

3 publications found

Variant links:

Genes affected

ESPN (HGNC:13281): (espin) This gene encodes a multifunctional actin-bundling protein. It plays a major role in regulating the organization, dimensions, dynamics, and signaling capacities of the actin filament-rich, microvillus-type specializations that mediate sensory transduction in various mechanosensory and chemosensory cells. Mutations in this gene are associated with autosomal recessive neurosensory deafness, and autosomal dominant sensorineural deafness without vestibular involvement. [provided by RefSeq, Nov 2009]

ESPN Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 36
Inheritance: AD, AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
nonsyndromic genetic hearing loss
Inheritance: AR, AD Classification: DEFINITIVE, LIMITED Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Usher syndrome type 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Usher syndrome, type 1M
Inheritance: AR, Unknown Classification: LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

ESPN links:

ENSG00000231868 (HGNC:):

ENSG00000231868 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008527875).

BP6

Variant 1-6444539-C-G is Benign according to our data. Variant chr1-6444539-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 227356.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000151 (23/152340) while in subpopulation SAS AF = 0.00393 (19/4834). AF 95% confidence interval is 0.00257. There are 0 homozygotes in GnomAd4. There are 19 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 4 AR,Unknown,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031475.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ESPN	NM_031475.3	MANE Select	c.1049C>G	p.Pro350Arg	missense	Exon 6 of 13	NP_113663.2	B1AK53-1
ESPN	NM_001367474.1		c.1049C>G	p.Pro350Arg	missense	Exon 6 of 15	NP_001354403.1
ESPN	NM_001367473.1		c.1049C>G	p.Pro350Arg	missense	Exon 6 of 14	NP_001354402.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ESPN	ENST00000645284.1	MANE Select	c.1049C>G	p.Pro350Arg	missense	Exon 6 of 13	ENSP00000496593.1	B1AK53-1
ESPN	ENST00000636330.1	TSL:5	c.1049C>G	p.Pro350Arg	missense	Exon 6 of 11	ENSP00000490186.1	A0A1B0GUN9
ESPN	ENST00000418286.1	TSL:3	c.404C>G	p.Pro135Arg	missense	Exon 4 of 5	ENSP00000401793.1	Q5JYL1

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00393

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000533

AC:

134

AN:

251428

AF XY:

0.000692

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00119

Gnomad EAS 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:

0.000239

AC:

349

AN:

1461886

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

234

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.000112

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00134

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00342

AC:

295

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1112008

Other (OTH)

AF:

0.000182

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

106

141

176

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000151

AC:

AN:

152340

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41576

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00393

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000112

Hom.:

Bravo

AF:

0.0000680

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000610

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

not specified (2)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.22

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.71

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.026

MetaRNN

Benign

0.0085

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

PhyloP100

1.7

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-3.4

REVEL

Benign

0.16

Sift

Benign

0.40

Sift4G

Benign

0.45

Polyphen

0.98

Vest4

0.59

MVP

0.20

MPC

0.59

ClinPred

0.098

GERP RS

0.73

Varity_R

0.049

gMVP

0.45

Mutation Taster

=88/12

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

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over