16-4797495-C-G

Variant names:

• chr16-4797495-C-G
• rs759234056
• NM_024589.3:c.829G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_024589.3(ROGDI):​c.829G>C​(p.Val277Leu) variant causes a missense change. 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 (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V277M) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ROGDI NM_024589.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.76
• Publications: 0 publications found

Genes affected

ROGDI (HGNC:29478): (rogdi atypical leucine zipper) Involved in brain development; neurogenesis; and odontogenesis of dentin-containing tooth. Located in nuclear envelope. Implicated in Kohlschutter-Tonz syndrome. [provided by Alliance of Genome Resources, Apr 2022]

ROGDI Gene-Disease associations (from GenCC):

• amelocerebrohypohidrotic syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen, Labcorp Genetics (formerly Invitae)

ENSG00000285952 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ROGDI	NM_024589.3	c.829G>C	p.Val277Leu	missense_variant	Exon 11 of 11	ENST00000322048.12	NP_078865.1
ROGDI	XM_006720947.5	c.850G>C	p.Val284Leu	missense_variant	Exon 11 of 11		XP_006721010.1
ROGDI	XM_047434636.1	c.580G>C	p.Val194Leu	missense_variant	Exon 9 of 9		XP_047290592.1
ROGDI	NR_046480.2	n.836G>C		non_coding_transcript_exon_variant	Exon 10 of 10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ROGDI	ENST00000322048.12	c.829G>C	p.Val277Leu	missense_variant	Exon 11 of 11	1	NM_024589.3	ENSP00000322832.6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Amelocerebrohypohidrotic syndrome Uncertain:1

May 03, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces valine with leucine at codon 277 of the ROGDI protein (p.Val277Leu). The valine residue is highly conserved and there is a small physicochemical difference between valine and leucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with ROGDI-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.68
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.060
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.083	T
Eigen	Pathogenic	0.73
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.051	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Benign	-0.57	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		5.8
PrimateAI	Pathogenic	0.82	D
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.38
Sift	Uncertain	0.0070	D
Sift4G	Uncertain	0.034	D
Polyphen		1.0	D
Vest4		0.71
MutPred		0.89		Loss of methylation at K274 (P = 0.1084);
MVP		0.30
MPC		0.086
ClinPred		0.97	D
GERP RS		5.4
Varity_R		0.53
gMVP		0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs759234056; hg19: chr16-4847496;