5-141528550-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting

The NM_005219.5(DIAPH1):c.3051G>A(p.Met1017Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

DIAPH1
NM_005219.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.74

Variant links:

Genes affected

DIAPH1 (HGNC:2876): (diaphanous related formin 1) This gene is a homolog of the Drosophila diaphanous gene, and has been linked to autosomal dominant, fully penetrant, nonsyndromic sensorineural progressive low-frequency hearing loss. Actin polymerization involves proteins known to interact with diaphanous protein in Drosophila and mouse. It has therefore been speculated that this gene may have a role in the regulation of actin polymerization in hair cells of the inner ear. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

DIAPH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21020302).

BS2

High AC in GnomAd4 at 12 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DIAPH1	NM_005219.5 link	c.3051G>A	p.Met1017Ile	missense_variant	Exon 23 of 28	ENST00000389054.8	NP_005210.3	O60610-1Q6URC4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DIAPH1	ENST00000389054.8 link	c.3051G>A	p.Met1017Ile	missense_variant	Exon 23 of 28	5	NM_005219.5	ENSP00000373706.4	O60610-1
DIAPH1	ENST00000518047.5 link	c.3024G>A	p.Met1008Ile	missense_variant	Exon 22 of 27	5		ENSP00000428268.2	O60610-3
DIAPH1	ENST00000647433.1 link	c.3051G>A	p.Met1017Ile	missense_variant	Exon 23 of 29			ENSP00000494675.1	A0A2R8Y5N1

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000241

AC:

AN:

249474

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135346

show subpopulations

Gnomad AFR exome

AF:

0.000194

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000629

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000322

Hom.:

Bravo

AF:

0.0000529

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000249

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 02, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Met1017Ile va riant in DIAPH1 has not been previously reported in individuals with hearing los s. This variant has been identified in 1/9804 African chromosomes and 1/11576 o f Latino chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broa dinstitute.org; dbSNP rs373275414). Although this variant has been seen in the g eneral population, its frequency is not high enough to rule out a pathogenic rol e. Computational prediction tools and conservation analyses suggest that this va riant may not impact the protein, though this information is not predictive enou gh to rule out pathogenicity. In summary, while the clinical significance of the p.Met1017Ile variant is uncertain, the computational and conservation data sugg est that it is more likely to be benign. -

Inborn genetic diseases

Uncertain:1

May 17, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3051G>A (p.M1017I) alteration is located in exon 23 (coding exon 23) of the DIAPH1 gene. This alteration results from a G to A substitution at nucleotide position 3051, causing the methionine (M) at amino acid position 1017 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Feb 15, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Autosomal dominant nonsyndromic hearing loss 1;C5567650:Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome

Uncertain:1

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1017 of the DIAPH1 protein (p.Met1017Ile). This variant is present in population databases (rs373275414, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with DIAPH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 504567). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬¨‚Ä†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.091

T;.;T;.;T;.

Eigen

Benign

-0.015

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.96

D;D;D;D;D;D

M_CAP

Benign

0.0078

MetaRNN

Benign

0.21

T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.47

N;.;.;.;.;.

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-0.92

.;.;.;N;N;.

REVEL

Benign

0.11

Sift

Benign

0.11

.;.;.;T;T;.

Sift4G

Benign

0.61

T;.;T;T;T;T

Polyphen

0.076

B;.;.;.;.;.

Vest4

0.53

MutPred

0.54

Gain of methylation at K1016 (P = 0.0279);Gain of methylation at K1016 (P = 0.0279);.;.;Gain of methylation at K1016 (P = 0.0279);.;

MVP

0.58

MPC

0.67

ClinPred

0.094

GERP RS

5.4

Varity_R

0.29

gMVP

0.26

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