chr7-24830818-T-C

Position:

• chr7-24830818-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_015550.4(OSBPL3):​c.1834A>G​(p.Thr612Ala) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: OSBPL3 NM_015550.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.12

Genes affected

OSBPL3 (HGNC:16370): (oxysterol binding protein like 3) This gene encodes a member of the oxysterol-binding protein (OSBP) family, a group of intracellular lipid receptors. Most members contain an N-terminal pleckstrin homology domain and a highly conserved C-terminal OSBP-like sterol-binding domain. The encoded protein is involved in the regulation of cell adhesion and organization of the actin cytoskeleton. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.978

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OSBPL3	NM_015550.4	c.1834A>G	p.Thr612Ala	missense_variant	16/23	ENST00000313367.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OSBPL3	ENST00000313367.7	c.1834A>G	p.Thr612Ala	missense_variant	16/23	1	NM_015550.4	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 29, 2024

The c.1834A>G (p.T612A) alteration is located in exon 16 (coding exon 15) of the OSBPL3 gene. This alteration results from a A to G substitution at nucleotide position 1834, causing the threonine (T) at amino acid position 612 to be replaced by an alanine (A). 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	Pathogenic	0.92
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.19
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.41	T;.;.;.
Eigen	Pathogenic	0.81
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Pathogenic	0.98	D;D;D;D
M_CAP	Uncertain	0.10	D
MetaRNN	Pathogenic	0.98	D;D;D;D
MetaSVM	Uncertain	0.16	D
MutationAssessor	Pathogenic	4.2	H;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Uncertain	0.65	T
PROVEAN	Pathogenic	-4.8	D;D;D;D
REVEL	Uncertain	0.62
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Uncertain	0.0040	D;D;D;D
Polyphen		0.93	P;P;D;P
Vest4		0.90
MutPred		0.92		Loss of phosphorylation at Y613 (P = 0.257);.;.;.;
MVP		0.83
MPC		0.79
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.80
gMVP		0.75

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-24870437;