chr12-76392583-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020841.5(OSBPL8):ā€‹c.927C>Gā€‹(p.Phe309Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000187 in 1,604,452 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 31)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

OSBPL8
NM_020841.5 missense, splice_region

Scores

3
16
Splicing: ADA: 0.0006231
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.267
Variant links:
Genes affected
OSBPL8 (HGNC:16396): (oxysterol binding protein like 8) This gene encodes a member of a family of proteins containing an N-terminal pleckstrin homology domain and a highly conserved C-terminal oxysterol-binding protein-like sterol-binding domain. It binds mutliple lipid-containing molecules, including phosphatidylserine, phosphatidylinositol 4-phosphate (PI4P) and oxysterol, and promotes their exchange between the endoplasmic reticulum and the plasma membrane. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.080655426).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OSBPL8NM_020841.5 linkuse as main transcriptc.927C>G p.Phe309Leu missense_variant, splice_region_variant 10/24 ENST00000261183.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OSBPL8ENST00000261183.8 linkuse as main transcriptc.927C>G p.Phe309Leu missense_variant, splice_region_variant 10/241 NM_020841.5 P3Q9BZF1-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152184
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1452268
Hom.:
0
Cov.:
33
AF XY:
0.00000277
AC XY:
2
AN XY:
721276
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
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:
9.05e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152184
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 26, 2023The c.927C>G (p.F309L) alteration is located in exon 10 (coding exon 9) of the OSBPL8 gene. This alteration results from a C to G substitution at nucleotide position 927, causing the phenylalanine (F) at amino acid position 309 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
Uncertain
0.40
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
18
DANN
Benign
0.97
DEOGEN2
Benign
0.047
.;T;.;.;T;T
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.44
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.80
.;T;T;.;T;T
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.081
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
.;L;.;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.77
N;N;.;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.45
T;T;.;T;T;T
Sift4G
Benign
0.73
T;T;T;T;.;.
Polyphen
0.0, 0.0010
.;B;.;.;.;B
Vest4
0.33
MutPred
0.28
.;Gain of sheet (P = 0.0266);.;.;Gain of sheet (P = 0.0266);.;
MVP
0.13
MPC
0.41
ClinPred
0.21
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.071
gMVP
0.14

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00062
dbscSNV1_RF
Benign
0.016
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.

Other links and lift over

dbSNP: rs1447244396; hg19: chr12-76786363; API