Genetic Variant NM_020896.4:c.2438G>A (chr11-3089909-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_020896.4(OSBPL5):c.2438G>A(p.Arg813Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,566,506 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign 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. R813W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

OSBPL5
NM_020896.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.321

Publications

0 publications found

Variant links:

Genes affected

OSBPL5 (HGNC:16392): (oxysterol binding protein like 5) This gene encodes a member of the oxysterol-binding protein (OSBP) family, a group of intracellular lipid receptors that play a key role in the maintenance of cholesterol balance in the body. Most members contain an N-terminal pleckstrin homology domain and a highly conserved C-terminal OSBP-like sterol-binding domain. This gene has been shown to be imprinted, with preferential expression from the maternal allele only in placenta. Transcript variants encoding different isoforms have been identified. [provided by RefSeq, Oct 2010]

OSBPL5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010727137).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OSBPL5	NM_020896.4 link	c.2438G>A	p.Arg813Gln	missense_variant	Exon 21 of 22	ENST00000263650.12	NP_065947.1	Q9H0X9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OSBPL5	ENST00000263650.12 link	c.2438G>A	p.Arg813Gln	missense_variant	Exon 21 of 22	1	NM_020896.4	ENSP00000263650.7		Q9H0X9-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152096

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:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000623

AC:

AN:

176456

AF XY:

0.0000526

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000331

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000138

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1414292

Hom.:

Cov.:

AF XY:

0.0000200

AC XY:

AN XY:

699436

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32438

American (AMR)

AF:

0.000209

AC:

AN:

38310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25290

East Asian (EAS)

AF:

0.00

AC:

AN:

36990

South Asian (SAS)

AF:

0.0000125

AC:

AN:

80290

European-Finnish (FIN)

AF:

0.0000206

AC:

AN:

48610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5462

European-Non Finnish (NFE)

AF:

0.0000129

AC:

AN:

1088314

Other (OTH)

AF:

0.0000683

AC:

AN:

58588

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.448

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74424

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41526

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5150

South Asian (SAS)

AF:

0.000207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000509

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2438G>A (p.R813Q) alteration is located in exon 21 (coding exon 20) of the OSBPL5 gene. This alteration results from a G to A substitution at nucleotide position 2438, causing the arginine (R) at amino acid position 813 to be replaced by a glutamine (Q). 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

0.062

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.011

.;T;.;T;.;.

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.0077

LIST_S2

Benign

0.43

T;T;.;T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.011

T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.23

.;N;.;.;.;.

PhyloP100

0.32

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.80

N;N;N;N;N;N

REVEL

Benign

0.019

Sift

Benign

0.59

T;T;T;T;T;T

Sift4G

Benign

0.67

T;T;T;T;T;T

Polyphen

0.0040

.;B;.;.;.;.

Vest4

0.096

MutPred

0.39

.;Loss of MoRF binding (P = 0.0255);.;.;.;.;

MVP

0.26

MPC

0.17

ClinPred

0.014

GERP RS

-2.3

Varity_R

0.029

gMVP

0.099

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over