chr1-52927431-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002979.5(SCP2):​c.35G>T​(p.Arg12Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000493 in 1,602,190 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: 0.000054 ( 0 hom. )

Consequence

SCP2
NM_002979.5 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.214

Publications

0 publications found
Variant links:
Genes affected
SCP2 (HGNC:10606): (sterol carrier protein 2) This gene encodes two proteins: sterol carrier protein X (SCPx) and sterol carrier protein 2 (SCP2), as a result of transcription initiation from 2 independently regulated promoters. The transcript initiated from the proximal promoter encodes the longer SCPx protein, and the transcript initiated from the distal promoter encodes the shorter SCP2 protein, with the 2 proteins sharing a common C-terminus. Evidence suggests that the SCPx protein is a peroxisome-associated thiolase that is involved in the oxidation of branched chain fatty acids, while the SCP2 protein is thought to be an intracellular lipid transfer protein. This gene is highly expressed in organs involved in lipid metabolism, and may play a role in Zellweger syndrome, in which cells are deficient in peroxisomes and have impaired bile acid synthesis. Alternative splicing of this gene produces multiple transcript variants, some encoding different isoforms.[provided by RefSeq, Aug 2010]
ECHDC2 (HGNC:23408): (enoyl-CoA hydratase domain containing 2) Predicted to enable enoyl-CoA hydratase activity. Predicted to be involved in fatty acid beta-oxidation. Predicted to be active in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3279143).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCP2NM_002979.5 linkc.35G>T p.Arg12Leu missense_variant Exon 1 of 16 ENST00000371514.8 NP_002970.2 P22307-1A0A384NY87Q59HG9B2R761

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCP2ENST00000371514.8 linkc.35G>T p.Arg12Leu missense_variant Exon 1 of 16 1 NM_002979.5 ENSP00000360569.3 P22307-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
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
GnomAD2 exomes
AF:
0.00000885
AC:
2
AN:
225966
AF XY:
0.0000164
show subpopulations
Gnomad AFR exome
AF:
0.0000718
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000989
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000538
AC:
78
AN:
1449960
Hom.:
0
Cov.:
32
AF XY:
0.0000486
AC XY:
35
AN XY:
719662
show subpopulations
African (AFR)
AF:
0.0000599
AC:
2
AN:
33370
American (AMR)
AF:
0.00
AC:
0
AN:
42932
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25806
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39288
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83378
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52310
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5572
European-Non Finnish (NFE)
AF:
0.0000668
AC:
74
AN:
1107336
Other (OTH)
AF:
0.0000334
AC:
2
AN:
59968
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74378
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Oct 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 12 of the SCP2 protein (p.Arg12Leu). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with SCP2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1479392). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Uncertain
0.043
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.79
D;.;.;.;T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.81
T;T;T;T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.33
T;T;T;T;T
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Pathogenic
3.1
M;M;M;M;.
PhyloP100
0.21
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-3.1
D;D;D;D;.
REVEL
Benign
0.24
Sift
Uncertain
0.0070
D;D;D;D;.
Sift4G
Uncertain
0.020
D;D;D;D;.
Polyphen
0.46
P;.;.;.;.
Vest4
0.34
MutPred
0.62
Loss of MoRF binding (P = 0.025);Loss of MoRF binding (P = 0.025);Loss of MoRF binding (P = 0.025);Loss of MoRF binding (P = 0.025);Loss of MoRF binding (P = 0.025);
MVP
0.81
MPC
0.59
ClinPred
0.41
T
GERP RS
-0.90
PromoterAI
0.0033
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.14
gMVP
0.66
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs755353816; hg19: chr1-53393103; API