19-55048348-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001145971.2(RDH13):c.639G>C(p.Glu213Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RDH13 NM_001145971.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.22

Genes affected

RDH13 (HGNC:19978): (retinol dehydrogenase 13) This gene encodes a mitochondrial short-chain dehydrogenase/reductase, which catalyzes the reduction and oxidation of retinoids. The encoded enzyme may function in retinoic acid production and may also protect the mitochondria against oxidative stress. Alternatively spliced transcript variants have been described. [provided by RefSeq, Mar 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.844

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RDH13	NM_001145971.2	c.639G>C	p.Glu213Asp	missense_variant	5/7	ENST00000415061.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RDH13	ENST00000415061.8	c.639G>C	p.Glu213Asp	missense_variant	5/7	1	NM_001145971.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 10, 2022

The c.639G>C (p.E213D) alteration is located in exon 5 (coding exon 5) of the RDH13 gene. This alteration results from a G to C substitution at nucleotide position 639, causing the glutamic acid (E) at amino acid position 213 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	Pathogenic	0.77
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
Cadd	Uncertain	24
Dann	Uncertain	1.0
Eigen	Uncertain	0.42
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Uncertain	0.90	D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.84	D;D;D
MetaSVM	Uncertain	0.45	D
MutationTaster	Benign	0.97	D;D
PrimateAI	Uncertain	0.61	T
Sift4G	Uncertain	0.0050	D;D;D
Polyphen		1.0	.;D;.
Vest4		0.84
MutPred		0.67		.;Gain of MoRF binding (P = 0.1037);.;
MVP		0.78
MPC		0.38
ClinPred		0.98	D
GERP RS		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.59
gMVP		0.85

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-55559716;