rs747116749

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005219.5(DIAPH1):​c.3486G>C​(p.Met1162Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DIAPH1
NM_005219.5 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.22
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14266533).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DIAPH1NM_005219.5 linkc.3486G>C p.Met1162Ile missense_variant Exon 26 of 28 ENST00000389054.8 NP_005210.3 O60610-1Q6URC4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DIAPH1ENST00000389054.8 linkc.3486G>C p.Met1162Ile missense_variant Exon 26 of 28 5 NM_005219.5 ENSP00000373706.4 O60610-1
DIAPH1ENST00000518047.5 linkc.3459G>C p.Met1153Ile missense_variant Exon 25 of 27 5 ENSP00000428268.2 O60610-3
DIAPH1ENST00000647433.1 linkc.3486G>C p.Met1162Ile missense_variant Exon 26 of 29 ENSP00000494675.1 A0A2R8Y5N1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249538
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135384
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000137
AC:
2
AN:
1461890
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal dominant nonsyndromic hearing loss 1;C5567650:Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome Uncertain:1
Jul 13, 2023
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 1162 of the DIAPH1 protein (p.Met1162Ile). This variant is present in population databases (rs747116749, gnomAD 0.0009%). 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: 949155). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant 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
Pathogenic
0.59
BayesDel_addAF
Benign
-0.074
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.19
T;.;T;.;T;.
Eigen
Benign
-0.10
Eigen_PC
Benign
0.11
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.88
D;T;D;D;D;D
M_CAP
Benign
0.0077
T
MetaRNN
Benign
0.14
T;T;T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-0.52
N;.;.;.;.;.
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.4
.;.;.;N;N;.
REVEL
Benign
0.19
Sift
Benign
0.20
.;.;.;T;T;.
Sift4G
Benign
0.20
T;.;T;T;T;T
Polyphen
0.0
B;.;.;.;.;.
Vest4
0.27
MutPred
0.26
Loss of glycosylation at K1161 (P = 0.2708);Loss of glycosylation at K1161 (P = 0.2708);.;.;Loss of glycosylation at K1161 (P = 0.2708);.;
MVP
0.68
MPC
0.60
ClinPred
0.28
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.094

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.

Other links and lift over

dbSNP: rs747116749; hg19: chr5-140905693; API