NM_000327.4:c.20T>G

Variant names:

• chr11-62613301-T-G
• rs1942930648
• NM_000327.4:c.20T>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_000327.4(ROM1):​c.20T>G​(p.Leu7Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,244 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 34)
• Consequence: ROM1 NM_000327.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.00
• Publications: 0 publications found

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]

ROM1 Gene-Disease associations (from GenCC):

• retinitis pigmentosa 7

  Inheritance: AD, Unknown Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)
• retinitis pigmentosa

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30906925).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000327.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ROM1	NM_000327.4	MANE Select	c.20T>G	p.Leu7Arg	missense	Exon 1 of 3	NP_000318.2	Q03395

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ROM1	ENST00000278833.4	TSL:1 MANE Select	c.20T>G	p.Leu7Arg	missense	Exon 1 of 3	ENSP00000278833.3	Q03395
	ROM1	ENST00000534093.5	TSL:2	c.-38-957T>G		intron	N/A	ENSP00000432151.1	E9PS24
	ROM1	ENST00000525801.1	TSL:3	c.-38-957T>G		intron	N/A	ENSP00000433566.1	E9PKF5

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152244 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 77

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152244 Hom.: 0 Cov.: 34 AF XY: 0.0000134 AC XY: 1 AN XY: 74384

African (AFR) AF: 0.0000241 AC: 1 AN: 41464

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.42
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.54	D
Eigen	Benign	0.068
Eigen_PC	Benign	0.11
FATHMM_MKL	Benign	0.42	N
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L
PhyloP100		3.0
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.092
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0060	D
Polyphen		0.77	P
Vest4		0.37
MutPred		0.48		Gain of solvent accessibility (P = 0.0018)
MVP		0.33
MPC		0.063
ClinPred		0.95	D
GERP RS		4.1
PromoterAI		0.029	Neutral
Varity_R		0.58
gMVP		0.80
Mutation Taster		=60/40	polymorphism

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

Other links and lift over

dbSNP: rs1942930648; hg19: chr11-62380773;