NM_006189.1:c.199C>A

Variant names:

• chr11-77103038-C-A
• rs782366056
• NM_006189.1:c.199C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006189.1(OMP):​c.199C>A​(p.Arg67Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,240 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R67C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: OMP NM_006189.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.07
• Publications: 0 publications found

Genes affected

OMP (HGNC:8136): (olfactory marker protein) Olfactory marker protein is uniquely associated with the mature olfactory receptor neurons in many vertebrate species from fish to man. The OMP gene structure and protein sequence are highly conserved between mouse, rat and human. Results of the mouse knockout studies show that OMP-null mice are compromised in their ability to respond to odor stimuli, and that OMP represents a novel modulatory component of the odor detection/signal transduction cascade. [provided by RefSeq, Jul 2008]

CAPN5 (HGNC:1482): (calpain 5) Calpains are calcium-dependent cysteine proteases involved in signal transduction in a variety of cellular processes. A functional calpain protein consists of an invariant small subunit and 1 of a family of large subunits. CAPN5 is one of the large subunits. Unlike some of the calpains, CAPN5 and CAPN6 lack a calmodulin-like domain IV. Because of the significant similarity to Caenorhabditis elegans sex determination gene tra-3, CAPN5 is also called as HTRA3. [provided by RefSeq, Jul 2008]

CAPN5 Gene-Disease associations (from GenCC):

• CAPN5-related vitreoretinopathy

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen
• autosomal dominant neovascular inflammatory vitreoretinopathy

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006189.1. 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
	OMP	NM_006189.1	MANE Select	c.199C>A	p.Arg67Ser	missense	Exon 1 of 1	NP_006180.1	P47874
	CAPN5	NM_004055.5	MANE Select	c.297+9225C>A		intron	N/A	NP_004046.2
	CAPN5	NM_001425321.1		c.417+9225C>A		intron	N/A	NP_001412250.1	E7EV01

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OMP	ENST00000529803.1	TSL:6 MANE Select	c.199C>A	p.Arg67Ser	missense	Exon 1 of 1	ENSP00000436376.1	P47874
	CAPN5	ENST00000648180.1	MANE Select	c.297+9225C>A		intron	N/A	ENSP00000498132.1	O15484
	CAPN5	ENST00000529629.5	TSL:1	c.297+9225C>A		intron	N/A	ENSP00000432332.1	O15484

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461240 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726880

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52958

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111862

Other (OTH) AF: 0.00 AC: 0 AN: 60368

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	22
DANN	Benign	0.96
DEOGEN2	Benign	0.24	T
Eigen	Benign	0.17
Eigen_PC	Benign	0.22
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Benign	0.48	T
M_CAP	Benign	0.0081	T
MetaRNN	Uncertain	0.70	D
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L
PhyloP100		3.1
PrimateAI	Benign	0.33	T
PROVEAN	Uncertain	-3.4	D
REVEL	Benign	0.17
Sift	Benign	0.16	T
Sift4G	Benign	0.32	T
Polyphen		0.90	P
Vest4		0.74
MutPred		0.55		Gain of sheet (P = 0.0166)
MVP		0.061
MPC		0.26
ClinPred		0.63	D
GERP RS		5.2
PromoterAI		0.010	Neutral
Varity_R		0.27
gMVP		0.23
Mutation Taster		=70/30	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: rs782366056; hg19: chr11-76814084;