rs751847293

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4BP6BS2_Supporting

The NM_005219.5(DIAPH1):c.2009C>T(p.Pro670Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000983 in 1,526,198 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 25)

Exomes 𝑓: 0.0000094 ( 0 hom. )

Consequence

DIAPH1
NM_005219.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 5.50

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=0.27666208).

BP6

Variant 5-141573841-G-A is Benign according to our data. Variant chr5-141573841-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 475700.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

BS2

High AC in GnomAdExome4 at 13 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.2009C>T	p.Pro670Leu	missense_variant	Exon 16 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.2009C>T	p.Pro670Leu	missense_variant	Exon 16 of 28	5	NM_005219.5	ENSP00000373706.4	O60610-1
DIAPH1	ENST00000518047.5 link	c.1982C>T	p.Pro661Leu	missense_variant	Exon 15 of 27	5		ENSP00000428268.2	O60610-3
DIAPH1	ENST00000647433.1 link	c.2009C>T	p.Pro670Leu	missense_variant	Exon 16 of 29			ENSP00000494675.1	A0A2R8Y5N1

Frequencies

GnomAD3 genomes

AF:

0.0000133

AC:

AN:

150508

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000390

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:

0.0000359

AC:

AN:

139368

Hom.:

AF XY:

0.0000140

AC XY:

AN XY:

71196

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000410

Gnomad SAS 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:

0.00000945

AC:

AN:

1375690

Hom.:

Cov.:

AF XY:

0.00000445

AC XY:

AN XY:

674018

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000136

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000657

Gnomad4 OTH exome

AF:

0.0000175

GnomAD4 genome

AF:

0.0000133

AC:

AN:

150508

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73392

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000390

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

ExAC

AF:

0.0000173

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 29, 2023

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 670 of the DIAPH1 protein (p.Pro670Leu). This variant is present in population databases (rs751847293, gnomAD 0.05%). This missense change has been observed in individual(s) with clinical features of DIAPH1-related conditions (PMID: 30896630). This variant is also known as c.1982C>T (p.Pro661Leu). ClinVar contains an entry for this variant (Variation ID: 475700). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

3billion, Medical Genetics

Sep 20, 2024

The homozygous variant was found in patients diagnosed with another variant in a different gene, with no symptoms related to the gene containing the homozygous variant. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.078

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.17

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.12

T;.;T;.;T;.

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.48

T;T;T;T;T;T

M_CAP

Pathogenic

0.41

MetaRNN

Benign

0.28

T;T;T;T;T;T

MetaSVM

Benign

-0.48

MutationAssessor

Uncertain

2.1

M;.;.;.;.;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.6

N;.;.;N;N;N

REVEL

Uncertain

0.44

Sift

Uncertain

0.012

D;.;.;D;D;D

Sift4G

Uncertain

0.011

D;.;D;D;D;D

Polyphen

1.0

D;.;.;.;.;.

Vest4

0.32

MutPred

0.54

Loss of relative solvent accessibility (P = 0.0071);Loss of relative solvent accessibility (P = 0.0071);.;.;Loss of relative solvent accessibility (P = 0.0071);.;

MVP

0.88

MPC

0.12

ClinPred

0.29

GERP RS

4.3

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.7

Varity_R

0.087

gMVP

0.18

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

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