Genetic Variant DHRS1:p.Arg300His (chr14-24290902-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001136050.3(DHRS1):c.899G>A(p.Arg300His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,606 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

DHRS1
NM_001136050.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.54

Variant links:

Genes affected

DHRS1 (HGNC:16445): (dehydrogenase/reductase 1) This gene encodes a member of the short-chain dehydrogenases/reductases (SDR) family. The encoded enzyme contains a conserved catalytic domain and likely functions as an oxidoreductase. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Nov 2008]

DHRS1 links:

NOP9 (HGNC:19826): (NOP9 nucleolar protein) Enables RNA binding activity. Predicted to be involved in ribosome biogenesis. Predicted to be part of 90S preribosome and preribosome, small subunit precursor. Predicted to be active in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

NOP9 links:

ENSG00000288044 (HGNC:):

ENSG00000288044 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DHRS1	NM_001136050.3 link	c.899G>A	p.Arg300His	missense_variant	Exon 9 of 9	ENST00000288111.12	NP_001129522.1	Q96LJ7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DHRS1	ENST00000288111.12 link	c.899G>A	p.Arg300His	missense_variant	Exon 9 of 9	1	NM_001136050.3	ENSP00000288111.7		Q96LJ7

Frequencies

GnomAD3 genomes

AF:

0.0000264

AC:

AN:

151750

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000969

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251464

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000264

AC:

AN:

151750

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74100

show subpopulations

Gnomad4 AFR

AF:

0.0000969

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000965

Hom.:

Bravo

AF:

0.0000793

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.899G>A (p.R300H) alteration is located in exon 9 (coding exon 8) of the DHRS1 gene. This alteration results from a G to A substitution at nucleotide position 899, causing the arginine (R) at amino acid position 300 to be replaced by a histidine (H). 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

0.15

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.16

T;T

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.90

M_CAP

Uncertain

0.12

MetaRNN

Uncertain

0.58

D;D

MetaSVM

Uncertain

0.45

MutationAssessor

Pathogenic

3.2

M;M

PrimateAI

Benign

0.39

PROVEAN

Benign

-2.2

N;N

REVEL

Uncertain

0.55

Sift

Uncertain

0.011

D;D

Sift4G

Uncertain

0.034

D;D

Polyphen

1.0

D;D

Vest4

0.50

MVP

0.89

MPC

0.24

ClinPred

0.92

GERP RS

5.0

Varity_R

0.18

gMVP

0.55

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