2-18555594-T-C

Variant names:

Variant summary

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

The NM_020905.4(RDH14):c.608A>G(p.Asp203Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,614,080 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: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

RDH14
NM_020905.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02

Variant links:

Genes affected

RDH14 (HGNC:19979): (retinol dehydrogenase 14) Enables NADP-retinol dehydrogenase activity. Involved in osteoblast differentiation. Located in cytosol; endoplasmic reticulum; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

RDH14 links:

NT5C1B-RDH14 (HGNC:38831): (NT5C1B-RDH14 readthrough) This locus represents naturally occurring read-through transcription between the neighboring NT5C1B (5'-nucleotidase, cytosolic IB) and RDH14 (retinol dehydrogenase 14) genes on chromosome 2. Alternative splicing results in multiple transcript variants, one of which encodes a fusion protein that shares sequence identity with the products of each individual gene. [provided by RefSeq, Nov 2010]

NT5C1B-RDH14 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
RDH14	NM_020905.4 link	c.608A>G	p.Asp203Gly	missense_variant	Exon 2 of 2	ENST00000381249.4	NP_065956.1	Q9HBH5Q53RX3
NT5C1B-RDH14	NM_001199103.2 link	c.1550A>G	p.Asp517Gly	missense_variant	Exon 9 of 9		NP_001186032.1
NT5C1B-RDH14	NM_001199104.2 link	c.*190A>G		3_prime_UTR_variant	Exon 11 of 11		NP_001186033.1	Q96P26-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RDH14	ENST00000381249.4 link	c.608A>G	p.Asp203Gly	missense_variant	Exon 2 of 2	1	NM_020905.4	ENSP00000370648.3	Q9HBH5
NT5C1B-RDH14	ENST00000532967 link	c.*190A>G		3_prime_UTR_variant	Exon 11 of 11	2		ENSP00000433415.1
NT5C1B-RDH14	ENST00000444297.2 link	c.1550A>G	p.Asp517Gly	missense_variant	Exon 9 of 9	2		ENSP00000412639.2	C9J2C7
RDH14	ENST00000468071.1 link	n.265A>G		non_coding_transcript_exon_variant	Exon 2 of 2	2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152148

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:

0.000578

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251216

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135828

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.0000316

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000529

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152266

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000579

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.608A>G (p.D203G) alteration is located in exon 2 (coding exon 2) of the RDH14 gene. This alteration results from a A to G substitution at nucleotide position 608, causing the aspartic acid (D) at amino acid position 203 to be replaced by a glycine (G). 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

Benign

-0.018

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.56

D;.

Eigen

Uncertain

0.27

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.94

D;D

M_CAP

Uncertain

0.12

MetaRNN

Uncertain

0.49

T;T

MetaSVM

Uncertain

0.65

MutationAssessor

Uncertain

2.6

M;.

PROVEAN

Pathogenic

-5.3

D;N

REVEL

Uncertain

0.50

Sift

Benign

0.063

T;D

Sift4G

Uncertain

0.049

D;D

Polyphen

0.22

B;P

Vest4

0.23

MutPred

0.76

.;Loss of stability (P = 0.0137);

MVP

0.97

MPC

0.049

ClinPred

0.50

GERP RS

5.7

Varity_R

0.50

gMVP

0.70

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