rs1554200929

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005219.5(DIAPH1):​c.3406A>T​(p.Met1136Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1136I) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

DIAPH1
NM_005219.5 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.92
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.28407326).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DIAPH1NM_005219.5 linkuse as main transcriptc.3406A>T p.Met1136Leu missense_variant 25/28 ENST00000389054.8 NP_005210.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DIAPH1ENST00000389054.8 linkuse as main transcriptc.3406A>T p.Met1136Leu missense_variant 25/285 NM_005219.5 ENSP00000373706 A2O60610-1
DIAPH1ENST00000518047.5 linkuse as main transcriptc.3379A>T p.Met1127Leu missense_variant 24/275 ENSP00000428268 P4O60610-3
DIAPH1ENST00000647433.1 linkuse as main transcriptc.3406A>T p.Met1136Leu missense_variant 25/29 ENSP00000494675 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
33
GnomAD4 genome
Cov.:
32

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
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 27, 2022This variant is not present in population databases (gnomAD no frequency). 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 542356). This variant has not been reported in the literature in individuals affected with DIAPH1-related conditions. This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1136 of the DIAPH1 protein (p.Met1136Leu). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
21
DANN
Benign
0.94
DEOGEN2
Benign
0.11
T;.;T;.;T;.
Eigen
Benign
-0.049
Eigen_PC
Benign
0.12
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.81
T;T;T;T;T;T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.28
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N;.;.;.;.;.
MutationTaster
Benign
0.98
N;N;N;N;N;N;N;N
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-0.85
.;.;.;N;N;.
REVEL
Benign
0.071
Sift
Benign
0.043
.;.;.;D;D;.
Sift4G
Benign
0.20
T;.;T;T;T;T
Polyphen
0.032
B;.;.;.;.;.
Vest4
0.28
MutPred
0.57
Loss of disorder (P = 0.123);Loss of disorder (P = 0.123);.;.;Loss of disorder (P = 0.123);.;
MVP
0.58
MPC
0.51
ClinPred
0.62
D
GERP RS
5.4
Varity_R
0.11
gMVP
0.15

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: rs1554200929; hg19: chr5-140905896; API