Genetic Variant GDPD4:p.Ala394Thr (chr11-77243755-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_182833.3(GDPD4):c.1180G>A(p.Ala394Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,520 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

GDPD4
NM_182833.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.96

Publications

0 publications found

Variant links:

Genes affected

GDPD4 (HGNC:24849): (glycerophosphodiester phosphodiesterase domain containing 4) Predicted to enable metal ion binding activity and phosphoric diester hydrolase activity. Predicted to be involved in lipid metabolic process. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

GDPD4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.038615525).

BP6

Variant 11-77243755-C-T is Benign according to our data. Variant chr11-77243755-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3519603.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182833.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GDPD4	NM_182833.3	MANE Select	c.1180G>A	p.Ala394Thr	missense	Exon 13 of 17	NP_878253.1	Q6W3E5-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GDPD4	ENST00000315938.5	TSL:1 MANE Select	c.1180G>A	p.Ala394Thr	missense	Exon 13 of 17	ENSP00000320815.4	Q6W3E5-2
	GDPD4	ENST00000376217.6	TSL:1	c.1180G>A	p.Ala394Thr	missense	Exon 12 of 17	ENSP00000365390.2	Q6W3E5-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459520

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726330

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86202

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1109858

Other (OTH)

AF:

0.00

AC:

AN:

60308

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.012

(source)

DANN

Benign

0.73

DEOGEN2

Benign

0.00051

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0057

LIST_S2

Benign

0.45

M_CAP

Benign

0.0022

MetaRNN

Benign

0.039

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.15

PhyloP100

-2.0

PrimateAI

Benign

0.32

PROVEAN

Benign

0.44

REVEL

Benign

0.023

Sift

Benign

0.77

Sift4G

Benign

0.45

Polyphen

0.0080

Vest4

0.026

MutPred

0.54

Gain of helix (P = 0.0425)

MVP

0.099

MPC

0.049

ClinPred

0.024

GERP RS

-4.3

Varity_R

0.028

gMVP

0.32

Mutation Taster

=94/6

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over