rs1468384

Variant summary

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

The NM_001101648.2(NPC1L1):​c.1530G>A​(p.Met510Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NPC1L1
NM_001101648.2 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.63
Variant links:
Genes affected
NPC1L1 (HGNC:7898): (NPC1 like intracellular cholesterol transporter 1) The protein encoded by this gene is a multi-pass membrane protein. It contains a conserved N-terminal Niemann-Pick C1 (NPC1) domain and a putative sterol-sensing domain (SSD) which includes a YQRL motif functioning as a plasma membrane to trans-Golgi network transport signal in other proteins. This protein takes up free cholesterol into cells through vesicular endocytosis and plays a critical role in the absorption of intestinal cholesterol. It also has the ability to transport alpha-tocopherol (vitamin E). The drug ezetimibe targets this protein and inhibits the absorption of intestinal cholesterol and alpha-tocopherol. In addition, this protein may play a critical role in regulating lipid metabolism. Polymorphic variations in this gene are associated with plasma total cholesterol and low-density lipoprotein cholesterol (LDL-C) levels and coronary heart disease (CHD) risk. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

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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=0.071058005).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NPC1L1NM_001101648.2 linkuse as main transcriptc.1530G>A p.Met510Ile missense_variant 2/19 ENST00000381160.8 NP_001095118.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NPC1L1ENST00000381160.8 linkuse as main transcriptc.1530G>A p.Met510Ile missense_variant 2/191 NM_001101648.2 ENSP00000370552 P1
NPC1L1ENST00000289547.8 linkuse as main transcriptc.1530G>A p.Met510Ile missense_variant 2/201 ENSP00000289547 Q9UHC9-1
NPC1L1ENST00000546276.5 linkuse as main transcriptc.1530G>A p.Met510Ile missense_variant 2/181 ENSP00000438033
NPC1L1ENST00000423141.1 linkuse as main transcriptc.1530G>A p.Met510Ile missense_variant 2/71 ENSP00000404670 Q9UHC9-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251492
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.46
DANN
Benign
0.88
DEOGEN2
Benign
0.065
T;T;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.025
N
LIST_S2
Benign
0.58
T;T;T;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.071
T;T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
0.34
N;.;.;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.47
N;N;N;N
REVEL
Benign
0.14
Sift
Benign
0.39
T;T;T;T
Sift4G
Benign
0.42
T;T;T;T
Polyphen
0.011
.;.;.;B
Vest4
0.11
MutPred
0.49
Gain of loop (P = 0.024);Gain of loop (P = 0.024);Gain of loop (P = 0.024);Gain of loop (P = 0.024);
MVP
0.65
MPC
0.17
ClinPred
0.029
T
GERP RS
-2.7
Varity_R
0.069
gMVP
0.41

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1468384; hg19: chr7-44578466; COSMIC: COSV56925348; API