rs28362263

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_174936.4(PCSK9):​c.1327G>A​(p.Ala443Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00507 in 1,613,318 control chromosomes in the GnomAD database, including 337 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.027 ( 186 hom., cov: 33)
Exomes 𝑓: 0.0028 ( 151 hom. )

Consequence

PCSK9
NM_174936.4 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts P:1U:1B:13

Conservation

PhyloP100: 1.40
Variant links:
Genes affected
PCSK9 (HGNC:20001): (proprotein convertase subtilisin/kexin type 9) This gene encodes a member of the subtilisin-like proprotein convertase family, which includes proteases that process protein and peptide precursors trafficking through regulated or constitutive branches of the secretory pathway. The encoded protein undergoes an autocatalytic processing event with its prosegment in the ER and is constitutively secreted as an inactive protease into the extracellular matrix and trans-Golgi network. It is expressed in liver, intestine and kidney tissues and escorts specific receptors for lysosomal degradation. It plays a role in cholesterol and fatty acid metabolism. Mutations in this gene have been associated with autosomal dominant familial hypercholesterolemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0014311075).
BP6
Variant 1-55058182-G-A is Benign according to our data. Variant chr1-55058182-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 262900.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55058182-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0919 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCSK9NM_174936.4 linkc.1327G>A p.Ala443Thr missense_variant Exon 8 of 12 ENST00000302118.5 NP_777596.2 Q8NBP7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCSK9ENST00000302118.5 linkc.1327G>A p.Ala443Thr missense_variant Exon 8 of 12 1 NM_174936.4 ENSP00000303208.5 Q8NBP7-1

Frequencies

GnomAD3 genomes
AF:
0.0272
AC:
4136
AN:
152204
Hom.:
186
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0946
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00903
Gnomad ASJ
AF:
0.00317
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000323
Gnomad OTH
AF:
0.0201
GnomAD3 exomes
AF:
0.00719
AC:
1797
AN:
249780
Hom.:
79
AF XY:
0.00520
AC XY:
704
AN XY:
135408
show subpopulations
Gnomad AFR exome
AF:
0.0977
Gnomad AMR exome
AF:
0.00408
Gnomad ASJ exome
AF:
0.00269
Gnomad EAS exome
AF:
0.000763
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000284
Gnomad OTH exome
AF:
0.00246
GnomAD4 exome
AF:
0.00277
AC:
4042
AN:
1460996
Hom.:
151
Cov.:
33
AF XY:
0.00239
AC XY:
1738
AN XY:
726824
show subpopulations
Gnomad4 AFR exome
AF:
0.0927
Gnomad4 AMR exome
AF:
0.00487
Gnomad4 ASJ exome
AF:
0.00241
Gnomad4 EAS exome
AF:
0.000403
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.0000190
Gnomad4 NFE exome
AF:
0.000272
Gnomad4 OTH exome
AF:
0.00515
GnomAD4 genome
AF:
0.0272
AC:
4138
AN:
152322
Hom.:
186
Cov.:
33
AF XY:
0.0258
AC XY:
1920
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.0943
Gnomad4 AMR
AF:
0.00901
Gnomad4 ASJ
AF:
0.00317
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.000323
Gnomad4 OTH
AF:
0.0199
Alfa
AF:
0.00477
Hom.:
48
Bravo
AF:
0.0305
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.0837
AC:
369
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00884
AC:
1073
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.000654
EpiControl
AF:
0.000296

ClinVar

Significance: Benign/Likely benign
Submissions summary: Pathogenic:1Uncertain:1Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hypercholesterolemia, autosomal dominant, 3 Benign:4
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Sep 28, 2024
All of Us Research Program, National Institutes of Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 16, 2016
Centre de Génétique Moléculaire et Chromosomique, Unité de génétique de l'Obésité et des Dyslipidémies, APHP, GH Hôpitaux Universitaires Pitié-Salpêtrière / Charles-Foix
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

subjects mutated among 2600 FH index cases screened = 8 / Software predictions: Benign -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hypercholesterolemia, familial, 1 Pathogenic:1Uncertain:1Benign:1
Jan 02, 2018
Robarts Research Institute, Western University
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 01, 2016
Laboratory of Genetics and Molecular Cardiology, University of São Paulo
Significance: Uncertain significance
Review Status: flagged submission
Collection Method: research

- -

-
Laboratorium voor Moleculaire Diagnostiek Experimentele Vasculaire Geneeskunde, Academisch Medisch Centrum
Significance: Pathogenic
Review Status: flagged submission
Collection Method: research

- -

not provided Benign:3
Jun 16, 2022
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 16, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 03, 2019
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 16211558, 18680192, 23663650, 16909389, 29540175, 30899674, 29447211) -

Familial hypercholesterolemia Benign:2
Feb 09, 2023
Cohesion Phenomics
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 17, 2017
Color Diagnostics, LLC DBA Color Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hypobetalipoproteinemia Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Cardiovascular phenotype Benign:1
Mar 23, 2016
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.63
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
14
DANN
Benign
0.71
DEOGEN2
Benign
0.085
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.052
N
LIST_S2
Benign
0.68
T
MetaRNN
Benign
0.0014
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.90
L
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.49
N
REVEL
Benign
0.043
Sift
Benign
0.53
T
Sift4G
Benign
0.60
T
Polyphen
0.0040
B
Vest4
0.022
MVP
0.32
MPC
0.22
ClinPred
0.0012
T
GERP RS
-6.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.071
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs28362263; hg19: chr1-55523855; COSMIC: COSV56165606; API