2-18555451-G-A

Variant names:

Variant summary

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

The NM_020905.4(RDH14):c.751C>T(p.Arg251Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,990 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

RDH14
NM_020905.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.70

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.751C>T	p.Arg251Trp	missense_variant	Exon 2 of 2	ENST00000381249.4	NP_065956.1	Q9HBH5Q53RX3
NT5C1B-RDH14	NM_001199103.2 link	c.1693C>T	p.Arg565Trp	missense_variant	Exon 9 of 9		NP_001186032.1
NT5C1B-RDH14	NM_001199104.2 link	c.*333C>T		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.751C>T	p.Arg251Trp	missense_variant	Exon 2 of 2	1	NM_020905.4	ENSP00000370648.3	Q9HBH5
RDH14	ENST00000468071.1 link	n.408C>T		non_coding_transcript_exon_variant	Exon 2 of 2	2
NT5C1B-RDH14	ENST00000532967.5 link	c.*333C>T		downstream_gene_variant		2		ENSP00000433415.1
NT5C1B-RDH14	ENST00000444297.2 link	c.*94C>T		downstream_gene_variant		2		ENSP00000412639.2	C9J2C7

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251444

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000301

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000315

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.0000965

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000680

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 26, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.751C>T (p.R251W) alteration is located in exon 2 (coding exon 2) of the RDH14 gene. This alteration results from a C to T substitution at nucleotide position 751, causing the arginine (R) at amino acid position 251 to be replaced by a tryptophan (W). 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

Uncertain

0.55

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.35

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.62

Eigen

Benign

-0.077

Eigen_PC

Benign

0.056

FATHMM_MKL

Uncertain

0.83

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.072

MetaRNN

Uncertain

0.68

MetaSVM

Uncertain

0.40

MutationAssessor

Benign

1.9

PROVEAN

Uncertain

-3.7

REVEL

Pathogenic

0.69

Sift

Benign

0.072

Sift4G

Benign

0.21

Polyphen

0.19

Vest4

0.72

MutPred

0.56

Loss of helix (P = 0.0558);

MVP

1.0

MPC

0.046

ClinPred

0.76

GERP RS

4.7

Varity_R

0.13

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over