Genetic Variant DRD5:p.Tyr18Asp (chr4-9782081-T-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_000798.5(DRD5):c.52T>G(p.Tyr18Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000177 in 1,521,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000088 ( 0 hom. )

Consequence

DRD5
NM_000798.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.830

Variant links:

Genes affected

DRD5 (HGNC:3026): (dopamine receptor D5) This gene encodes the D5 subtype of the dopamine receptor. The D5 subtype is a G-protein coupled receptor which stimulates adenylyl cyclase. This receptor is expressed in neurons in the limbic regions of the brain. It has a 10-fold higher affinity for dopamine than the D1 subtype. Pseudogenes related to this gene reside on chromosomes 1 and 2. [provided by RefSeq, Jul 2008]

DRD5 links:

SLC2A9 (HGNC:13446): (solute carrier family 2 member 9) This gene encodes a member of the SLC2A facilitative glucose transporter family. Members of this family play a significant role in maintaining glucose homeostasis. The encoded protein may play a role in the development and survival of chondrocytes in cartilage matrices. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

SLC2A9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.018544465).

BS2

High AC in GnomAd4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DRD5	NM_000798.5 link	c.52T>G	p.Tyr18Asp	missense_variant	Exon 1 of 1	ENST00000304374.4	NP_000789.1	P21918

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DRD5	ENST00000304374.4 link	c.52T>G	p.Tyr18Asp	missense_variant	Exon 1 of 1	6	NM_000798.5	ENSP00000306129.2	P21918
SLC2A9	ENST00000503803.5 link	n.386-2016A>C		intron_variant	Intron 3 of 3	3
SLC2A9	ENST00000508585.5 link	n.182-10712A>C		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000129

AC:

AN:

155630

Hom.:

AF XY:

0.00

AC XY:

AN XY:

83458

show subpopulations

Gnomad AFR exome

AF:

0.000179

Gnomad AMR exome

AF:

0.00

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:

0.00000876

AC:

AN:

1369138

Hom.:

Cov.:

AF XY:

0.00000298

AC XY:

AN XY:

671928

show subpopulations

Gnomad4 AFR exome

AF:

0.000358

Gnomad4 AMR exome

AF:

0.00

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:

0.0000177

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152342

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.000337

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000132

ESP6500AA

AF:

0.000466

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000339

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 27, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.52T>G (p.Y18D) alteration is located in exon 1 (coding exon 1) of the DRD5 gene. This alteration results from a T to G substitution at nucleotide position 52, causing the tyrosine (Y) at amino acid position 18 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.52

CADD

Benign

1.7

DANN

Benign

0.24

DEOGEN2

Benign

0.085

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.012

LIST_S2

Benign

0.22

M_CAP

Benign

0.013

MetaRNN

Benign

0.019

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-0.69

REVEL

Benign

0.076

Sift

Benign

0.13

Sift4G

Benign

0.21

Polyphen

0.0

Vest4

0.13

MVP

0.081

MPC

0.40

ClinPred

0.039

GERP RS

1.8

Varity_R

0.062

gMVP

0.43

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