Genetic Variant NM_016467.5:c.310A>G (chr2-189775581-T-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_016467.5(ORMDL1):c.310A>G(p.Ile104Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000312 in 1,600,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

ORMDL1
NM_016467.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.94

Variant links:

Genes affected

ORMDL1 (HGNC:16036): (ORMDL sphingolipid biosynthesis regulator 1) Involved in ceramide metabolic process. Acts upstream of or within negative regulation of ceramide biosynthetic process. Located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

ORMDL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3485787).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ORMDL1	NM_016467.5 link	c.310A>G	p.Ile104Val	missense_variant	Exon 4 of 5	ENST00000392349.9	NP_057551.1	Q9P0S3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ORMDL1	ENST00000392349.9 link	c.310A>G	p.Ile104Val	missense_variant	Exon 4 of 5	1	NM_016467.5	ENSP00000376160.4		Q9P0S3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000276

AC:

AN:

1448586

Hom.:

Cov.:

AF XY:

0.00000417

AC XY:

AN XY:

720254

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000235

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:

0.00000271

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.310A>G (p.I104V) alteration is located in exon 4 (coding exon 2) of the ORMDL1 gene. This alteration results from a A to G substitution at nucleotide position 310, causing the isoleucine (I) at amino acid position 104 to be replaced by a valine (V). 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

0.065

BayesDel_addAF

Uncertain

0.040

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.016

T;T;T;T;T;T

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

.;.;D;D;.;D

M_CAP

Benign

0.0046

MetaRNN

Benign

0.35

T;T;T;T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

0.67

N;N;N;.;.;.

PrimateAI

Uncertain

0.63

PROVEAN

Benign

0.080

N;N;N;N;N;N

REVEL

Benign

0.20

Sift

Benign

0.45

T;T;T;T;T;T

Sift4G

Benign

1.0

T;T;T;T;.;.

Polyphen

0.86

P;P;P;.;.;.

Vest4

0.49

MutPred

0.48

Loss of catalytic residue at P106 (P = 0.0383);Loss of catalytic residue at P106 (P = 0.0383);Loss of catalytic residue at P106 (P = 0.0383);Loss of catalytic residue at P106 (P = 0.0383);Loss of catalytic residue at P106 (P = 0.0383);Loss of catalytic residue at P106 (P = 0.0383);

MVP

0.49

MPC

1.1

ClinPred

0.81

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.098

gMVP

0.83

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

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