11-77102916-G-T

Position:

chr11-77102916-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_006189.1(OMP):c.77G>T(p.Arg26Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000411 in 1,460,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R26W) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

OMP
NM_006189.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.55

Variant links:

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]

OMP links:

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.845

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
OMP	NM_006189.1 linkuse as main transcript	c.77G>T	p.Arg26Leu	missense_variant	1/1	ENST00000529803.1	NP_006180.1
CAPN5	NM_004055.5 linkuse as main transcript	c.297+9103G>T		intron_variant		ENST00000648180.1	NP_004046.2
CAPN5	XM_011545225.1 linkuse as main transcript	c.417+9103G>T		intron_variant			XP_011543527.1
CAPN5	XM_017018223.3 linkuse as main transcript	c.405+9103G>T		intron_variant			XP_016873712.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OMP	ENST00000529803.1 linkuse as main transcript	c.77G>T	p.Arg26Leu	missense_variant	1/1		NM_006189.1	ENSP00000436376	P1
CAPN5	ENST00000648180.1 linkuse as main transcript	c.297+9103G>T		intron_variant			NM_004055.5	ENSP00000498132	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000406

AC:

AN:

246182

Hom.:

AF XY:

0.00000745

AC XY:

AN XY:

134292

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000903

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1460480

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726540

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 21, 2024

The c.77G>T (p.R26L) alteration is located in exon 1 (coding exon 1) of the OMP gene. This alteration results from a G to T substitution at nucleotide position 77, causing the arginine (R) at amino acid position 26 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.11

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.038

MetaRNN

Pathogenic

0.85

MetaSVM

Benign

-0.78

MutationAssessor

Benign

1.7

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.59

PROVEAN

Pathogenic

-6.3

REVEL

Uncertain

0.44

Sift

Uncertain

0.0050

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.88

MutPred

0.47

Loss of MoRF binding (P = 0.0148);

MVP

0.22

MPC

0.30

ClinPred

0.96

GERP RS

5.1

Varity_R

0.48

gMVP

0.47

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over