Genetic Variant NM_019593.5:c.1940G>A (chr20-5547740-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_019593.5(GPCPD1):c.1940G>A(p.Arg647His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000807 in 1,610,370 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R647C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

GPCPD1
NM_019593.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.324

Publications

0 publications found

Variant links:

Genes affected

GPCPD1 (HGNC:26957): (glycerophosphocholine phosphodiesterase 1) Predicted to enable glycerophosphocholine phosphodiesterase activity. Predicted to be involved in glycerophospholipid catabolic process. Predicted to act upstream of or within skeletal muscle tissue development. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

GPCPD1 links:

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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=0.009323567).

BP6

Variant 20-5547740-C-T is Benign according to our data. Variant chr20-5547740-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3101271.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_019593.5. 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
	GPCPD1	NM_019593.5	MANE Select	c.1940G>A	p.Arg647His	missense	Exon 20 of 20	NP_062539.1	Q9NPB8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GPCPD1	ENST00000379019.7	TSL:1 MANE Select	c.1940G>A	p.Arg647His	missense	Exon 20 of 20	ENSP00000368305.4	Q9NPB8
GPCPD1	ENST00000718343.1		c.1940G>A	p.Arg647His	missense	Exon 20 of 20	ENSP00000520780.1	Q9NPB8
GPCPD1	ENST00000873924.1		c.1940G>A	p.Arg647His	missense	Exon 21 of 21	ENSP00000543983.1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000399

AC:

AN:

250916

AF XY:

0.00000738

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000490

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000617

AC:

AN:

1458000

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

725616

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33414

American (AMR)

AF:

0.00

AC:

AN:

44654

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26106

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39672

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86086

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000271

AC:

AN:

1108686

Other (OTH)

AF:

0.0000498

AC:

AN:

60238

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

AF:

0.0000263

AC:

AN:

152370

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74510

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41592

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.0000540

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000741

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

0.059

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Benign

0.75

DEOGEN2

Benign

0.0039

Eigen

Benign

-0.98

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.82

M_CAP

Benign

0.0050

MetaRNN

Benign

0.0093

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-2.0

PhyloP100

0.32

PrimateAI

Benign

0.23

PROVEAN

Benign

0.13

REVEL

Benign

0.061

Sift

Benign

1.0

Sift4G

Benign

0.62

Polyphen

0.0

Vest4

0.073

MVP

0.061

MPC

0.55

ClinPred

0.0086

GERP RS

-2.1

Varity_R

0.025

gMVP

0.39

Mutation Taster

=88/12

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over