Variant 8-38247755-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_015214.3(DDHD2):c.1168C>T(p.Leu390=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000518 in 1,574,170 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 1 hom., cov: 31)

Exomes 𝑓: 0.00026 ( 3 hom. )

Consequence

DDHD2
NM_015214.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.130

Variant links:

Genes affected

DDHD2 (HGNC:29106): (DDHD domain containing 2) This gene encodes a phospholipase enzyme containing sterile-alpha-motif (SAM), WWE, and DDHD domains. This protein participates in membrane trafficking between the endoplastic reticulum and the Golgi body. Mutations in this gene can cause autosomal recessive spastic paraplegia 54. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]

DDHD2 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 8-38247755-C-T is Benign according to our data. Variant chr8-38247755-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 386289.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-38247755-C-T is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-0.13 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0029 (442/152292) while in subpopulation AFR AF= 0.0103 (430/41566). AF 95% confidence interval is 0.00954. There are 1 homozygotes in gnomad4. There are 213 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DDHD2	NM_015214.3 linkuse as main transcript	c.1168C>T	p.Leu390=	synonymous_variant	10/18	ENST00000397166.7	NP_056029.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DDHD2	ENST00000397166.7 linkuse as main transcript	c.1168C>T	p.Leu390=	synonymous_variant	10/18	2	NM_015214.3	ENSP00000380352	P1	O94830-1

Frequencies

GnomAD3 genomes

AF:

0.00291

AC:

443

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0104

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.0000294

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000623

AC:

145

AN:

232770

Hom.:

AF XY:

0.000452

AC XY:

AN XY:

126164

show subpopulations

Gnomad AFR exome

AF:

0.00902

Gnomad AMR exome

AF:

0.000103

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:

0.00

Gnomad OTH exome

AF:

0.000358

GnomAD4 exome

AF:

0.000262

AC:

373

AN:

1421878

Hom.:

Cov.:

AF XY:

0.000219

AC XY:

155

AN XY:

708456

show subpopulations

Gnomad4 AFR exome

AF:

0.0102

Gnomad4 AMR exome

AF:

0.000357

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000370

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000276

Gnomad4 OTH exome

AF:

0.000526

GnomAD4 genome

AF:

0.00290

AC:

442

AN:

152292

Hom.:

Cov.:

AF XY:

0.00286

AC XY:

213

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.0103

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00180

Hom.:

Bravo

AF:

0.00326

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jun 01, 2024	DDHD2: BP4, BP7, BS1 -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Mar 14, 2018

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Hereditary spastic paraplegia 54

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 22, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

0.38

DANN

Benign

0.45

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