Genetic Variant ESPN:p.Pro357Thr (chr1-6444559-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_031475.3(ESPN):c.1069C>A(p.Pro357Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P357S) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ESPN
NM_031475.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.02

Publications

0 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):

nonsyndromic genetic hearing loss
Inheritance: AD, AR Classification: DEFINITIVE, LIMITED Submitted by: ClinGen
autosomal recessive nonsyndromic hearing loss 36
Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P
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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ESPN	NM_031475.3 link	c.1069C>A	p.Pro357Thr	missense_variant	Exon 6 of 13	ENST00000645284.1	NP_113663.2	B1AK53-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ESPN	ENST00000645284.1 link	c.1069C>A	p.Pro357Thr	missense_variant	Exon 6 of 13		NM_031475.3	ENSP00000496593.1	B1AK53-1
ESPN	ENST00000636330.1 link	c.1069C>A	p.Pro357Thr	missense_variant	Exon 6 of 11	5		ENSP00000490186.1	A0A1B0GUN9
ESPN	ENST00000418286.1 link	c.424C>A	p.Pro142Thr	missense_variant	Exon 4 of 5	3		ENSP00000401793.1	Q5JYL1
ENSG00000231868	ENST00000419034.1 link	n.215+1003G>T		intron_variant	Intron 2 of 2	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727246

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:

0.00

AC:

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:

0.00000180

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.41

T;T;T;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.92

.;D;D;D

M_CAP

Pathogenic

0.58

MetaRNN

Uncertain

0.72

D;D;D;D

MetaSVM

Uncertain

0.61

MutationAssessor

Uncertain

2.4

M;.;M;.

PhyloP100

7.0

PrimateAI

Uncertain

0.73

PROVEAN

Pathogenic

-4.9

.;.;D;D

REVEL

Uncertain

0.62

Sift

Uncertain

0.016

.;.;D;T

Sift4G

Uncertain

0.032

.;.;D;D

Polyphen

1.0

D;.;D;.

Vest4

0.75

MutPred

0.23

Gain of catalytic residue at P357 (P = 0.0452);Gain of catalytic residue at P357 (P = 0.0452);Gain of catalytic residue at P357 (P = 0.0452);.;

MVP

0.89

MPC

0.67

ClinPred

1.0

GERP RS

3.8

Varity_R

0.39

gMVP

0.65

Mutation Taster

=81/19

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over