Genetic Variant DRG1:p.Arg17Trp (chr22-31400626-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_004147.4(DRG1):c.49C>T(p.Arg17Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,612,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R17G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DRG1
NM_004147.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.18

Variant links:

Genes affected

DRG1 (HGNC:3029): (developmentally regulated GTP binding protein 1) Enables several functions, including GTPase activity; identical protein binding activity; and potassium ion binding activity. Involved in positive regulation of microtubule polymerization and regulation of mitotic spindle assembly. Located in cytosol and nuclear body. Part of polysome. [provided by Alliance of Genome Resources, Apr 2022]

DRG1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.823

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DRG1	NM_004147.4 link	c.49C>T	p.Arg17Trp	missense_variant	Exon 2 of 9	ENST00000331457.9	NP_004138.1	Q9Y295

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DRG1	ENST00000331457.9 link	c.49C>T	p.Arg17Trp	missense_variant	Exon 2 of 9	1	NM_004147.4	ENSP00000329715.4	Q9Y295
DRG1	ENST00000416465.5 link	n.49C>T		non_coding_transcript_exon_variant	Exon 2 of 6	5		ENSP00000408091.1	F8WEE0
DRG1	ENST00000433341.5 link	n.116C>T		non_coding_transcript_exon_variant	Exon 2 of 7	3
DRG1	ENST00000486584.1 link	n.93+901C>T		intron_variant	Intron 1 of 2	5

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251098

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135704

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460516

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726576

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74206

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.14

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.39

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.82

MetaSVM

Uncertain

-0.13

MutationAssessor

Pathogenic

3.9

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-6.4

REVEL

Uncertain

0.47

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.65

MutPred

0.60

Loss of disorder (P = 9e-04);

MVP

0.66

MPC

2.0

ClinPred

1.0

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.82

gMVP

0.87

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over