rs74830677

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_005505.5(SCARB1):​c.1127C>T​(p.Pro376Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000539 in 1,609,304 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00067 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00053 ( 14 hom. )

Consequence

SCARB1
NM_005505.5 missense, splice_region

Scores

8
8
2
Splicing: ADA: 0.9876
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1B:1O:1

Conservation

PhyloP100: 8.75

Publications

56 publications found
Variant links:
Genes affected
SCARB1 (HGNC:1664): (scavenger receptor class B member 1) The protein encoded by this gene is a plasma membrane receptor for high density lipoprotein cholesterol (HDL). The encoded protein mediates cholesterol transfer to and from HDL. In addition, this protein is a receptor for hepatitis C virus glycoprotein E2 and facilitates cell entry by the virus, SARS-CoV2. [provided by RefSeq, Oct 2021]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.
BS2
High Homozygotes in GnomAdExome4 at 14 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCARB1NM_005505.5 linkc.1127C>T p.Pro376Leu missense_variant, splice_region_variant Exon 8 of 13 ENST00000261693.11 NP_005496.4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCARB1ENST00000261693.11 linkc.1127C>T p.Pro376Leu missense_variant, splice_region_variant Exon 8 of 13 1 NM_005505.5 ENSP00000261693.6

Frequencies

GnomAD3 genomes
AF:
0.000670
AC:
102
AN:
152198
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.0256
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000991
AC:
249
AN:
251294
AF XY:
0.000928
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0208
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000246
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.000525
AC:
765
AN:
1457106
Hom.:
14
Cov.:
29
AF XY:
0.000527
AC XY:
382
AN XY:
725224
show subpopulations
African (AFR)
AF:
0.0000600
AC:
2
AN:
33342
American (AMR)
AF:
0.0000447
AC:
2
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.0203
AC:
529
AN:
26120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39660
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86126
European-Finnish (FIN)
AF:
0.0000749
AC:
4
AN:
53376
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5702
European-Non Finnish (NFE)
AF:
0.000125
AC:
139
AN:
1107852
Other (OTH)
AF:
0.00146
AC:
88
AN:
60218
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
36
72
108
144
180
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.000670
AC:
102
AN:
152198
Hom.:
1
Cov.:
32
AF XY:
0.000646
AC XY:
48
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41438
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.0256
AC:
89
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68020
Other (OTH)
AF:
0.00143
AC:
3
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000964
Hom.:
0
Bravo
AF:
0.000627
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00128
AC:
11
ExAC
AF:
0.000651
AC:
79
EpiCase
AF:
0.000436
EpiControl
AF:
0.000533

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1Benign:1Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

HIGH DENSITY LIPOPROTEIN CHOLESTEROL LEVEL QUANTITATIVE TRAIT LOCUS 6 Pathogenic:1Other:1
Jul 20, 2018
OMIM
Significance:association
Review Status:no assertion criteria provided
Collection Method:literature only

Mar 22, 2019
Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant has been previously reported as a heterozygous or homozygous change in patients with high HDL cholesterol and coronary heart disease risk (PMID: 26965621). In vitro and in vivo studies show that in the heterozygous state this variant causes a profound reduction in HDL uptake (PMID: 26965621). This variant is present in the heterozygous state in the gnomAD population database at a frequency of .09% (254/277086) and thus is presumed to be rare. However, it is more common in some ethnic groups, reaching allele frequencies of 2%. In silico tools used to predict the effect of this variant on protein function yield discordant results. Based on the available evidence, the c.1127C>T (p.Pro376Leu) variant is classified as pathogenic .

SCARB1-related disorder Uncertain:1
Sep 11, 2021
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

not provided Benign:1
Oct 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.80
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.37
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0
.;D;.;T;T
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.076
T;T;T;T;T
MetaSVM
Uncertain
0.23
D
MutationAssessor
Pathogenic
3.7
H;H;H;.;.
PhyloP100
8.7
PrimateAI
Uncertain
0.71
T
PROVEAN
Pathogenic
-9.3
D;D;D;D;D
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0030
D;D;D;D;D
Sift4G
Uncertain
0.060
T;T;D;D;T
Vest4
0.99
ClinPred
0.69
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.78
gMVP
0.93
Mutation Taster
=11/89
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.76
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

Other links and lift over

dbSNP: rs74830677; hg19: chr12-125284671; COSMIC: COSV55545635; API