chr11-62613291-G-A

Position:

• chr11-62613291-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000327.4(ROM1):​c.10G>A​(p.Val4Met) 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 benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ROM1 NM_000327.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.607

Genes affected

ROM1 (HGNC:10254): (retinal outer segment membrane protein 1) This gene is a member of a photoreceptor-specific gene family and encodes an integral membrane protein found in the photoreceptor disk rim of the eye. This protein can form homodimers or can heterodimerize with another photoreceptor, retinal degeneration slow (RDS). It is essential for disk morphogenesis, and may also function as an adhesion molecule involved in the stabilization and compaction of outer segment disks or in the maintenance of the curvature of the rim. Certain defects in this gene have been associated with the degenerative eye disease retinitis pigmentosa. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07628843).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ROM1	NM_000327.4	c.10G>A	p.Val4Met	missense_variant	1/3	ENST00000278833.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ROM1	ENST00000278833.4	c.10G>A	p.Val4Met	missense_variant	1/3	1	NM_000327.4	P1
ROM1	ENST00000525801.1	c.-38-967G>A		intron_variant		3
ROM1	ENST00000534093.5	c.-38-967G>A		intron_variant		2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1453152 Hom.: 0 Cov.: 77 AF XY: 0.00 AC XY: 0 AN XY: 722476

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 10, 2023

This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 4 of the ROM1 protein (p.Val4Met). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ROM1-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ROM1 protein function with a negative predictive value of 80%. 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	Benign	0.22
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	18
DANN	Uncertain	0.98
DEOGEN2	Benign	0.33	T
Eigen	Benign	-0.40
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.30	N
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.076	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.75	N
MutationTaster	Benign	1.0	D;N
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-0.88	N
REVEL	Benign	0.017
Sift	Benign	0.070	T
Sift4G	Uncertain	0.012	D
Polyphen		0.062	B
Vest4		0.19
MutPred		0.24		Gain of disorder (P = 0.0565);
MVP		0.27
MPC		0.047
ClinPred		0.12	T
GERP RS		2.1
Varity_R		0.069
gMVP		0.27

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr11-62380763;