14-67729233-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 7P and 2B. PM1PM2PM5PP2BP4_Moderate

The NM_152443.3(RDH12):c.701G>T(p.Arg234Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,820 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R234H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

RDH12
NM_152443.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.364

Publications

0 publications found

Variant links:

Genes affected

RDH12 (HGNC:19977): (retinol dehydrogenase 12) The protein encoded by this gene is an NADPH-dependent retinal reductase whose highest activity is toward 9-cis and all-trans-retinol. The encoded enzyme also plays a role in the metabolism of short-chain aldehydes but does not exhibit steroid dehydrogenase activity. Defects in this gene are a cause of Leber congenital amaurosis type 13 and Retinitis Pigmentosa 53. [provided by RefSeq, Sep 2015]

RDH12 links:

ZFYVE26 (HGNC:20761): (zinc finger FYVE-type containing 26) This gene encodes a protein which contains a FYVE zinc finger binding domain. The presence of this domain is thought to target these proteins to membrane lipids through interaction with phospholipids in the membrane. Mutations in this gene are associated with autosomal recessive spastic paraplegia-15. [provided by RefSeq, Oct 2008]

ZFYVE26 links:

GPHN (HGNC:15465): (gephyrin) This gene encodes a neuronal assembly protein that anchors inhibitory neurotransmitter receptors to the postsynaptic cytoskeleton via high affinity binding to a receptor subunit domain and tubulin dimers. In nonneuronal tissues, the encoded protein is also required for molybdenum cofactor biosynthesis. Mutations in this gene may be associated with the neurological condition hyperplexia and also lead to molybdenum cofactor deficiency. Numerous alternatively spliced transcript variants encoding different isoforms have been described; however, the full-length nature of all transcript variants is not currently known. [provided by RefSeq, Jul 2008]

GPHN Gene-Disease associations (from GenCC):

sulfite oxidase deficiency due to molybdenum cofactor deficiency type C
Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, ClinGen
hereditary hyperekplexia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
complex neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

GPHN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM1

In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_152443.3

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr14-67729233-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 313842.We mark this variant Likely_pathogenic, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 53 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: -0.14222 (below the threshold of 3.09). Trascript score misZ: 0.34257 (below the threshold of 3.09). GenCC associations: The gene is linked to RDH12-related recessive retinopathy, retinitis pigmentosa, Leber congenital amaurosis 13, Leber congenital amaurosis.

BP4

Computational evidence support a benign effect (MetaRNN=0.24382302).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RDH12	NM_152443.3 link	c.701G>T	p.Arg234Leu	missense_variant	Exon 8 of 9	ENST00000551171.6	NP_689656.2	Q96NR8A0A0S2Z613
RDH12	XM_047430965.1 link	c.701G>T	p.Arg234Leu	missense_variant	Exon 8 of 9		XP_047286921.1
ZFYVE26	XM_047431173.1 link	c.*509C>A		3_prime_UTR_variant	Exon 42 of 42		XP_047287129.1
GPHN	XM_047430879.1 link	c.1313-5962G>T		intron_variant	Intron 14 of 14		XP_047286835.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RDH12	ENST00000551171.6 link	c.701G>T	p.Arg234Leu	missense_variant	Exon 8 of 9	1	NM_152443.3	ENSP00000449079.1	Q96NR8
RDH12	ENST00000267502.3 link	c.701G>T	p.Arg234Leu	missense_variant	Exon 7 of 8	5		ENSP00000267502.3	Q96NR8
ZFYVE26	ENST00000394455.6 link	n.3266C>A		non_coding_transcript_exon_variant	Exon 14 of 15	2
RDH12	ENST00000552873.1 link	n.70G>T		non_coding_transcript_exon_variant	Exon 2 of 2	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1458820

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725792

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86214

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51158

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5158

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111984

Other (OTH)

AF:

0.00

AC:

AN:

60302

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.031

BayesDel_noAF

Benign

-0.28

CADD

Benign

8.7

(source)

DANN

Benign

0.93

DEOGEN2

Uncertain

0.73

D;D

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.73

.;T

M_CAP

Benign

0.043

MetaRNN

Benign

0.24

T;T

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.4

L;L

PhyloP100

0.36

PrimateAI

Benign

0.26

PROVEAN

Uncertain

-2.5

D;D

REVEL

Uncertain

0.30

Sift

Benign

0.25

T;T

Sift4G

Benign

0.35

T;T

Polyphen

0.0

B;B

Vest4

0.29

MutPred

0.54

Gain of stability (P = 0.0439);Gain of stability (P = 0.0439);

MVP

0.86

MPC

0.28

ClinPred

0.28

GERP RS

-0.56

Varity_R

0.077

gMVP

0.79

Mutation Taster

=49/51

disease causing

(source)

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

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14-67729233-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over