NM_174936.4:c.207+15A>G

Variant names:

• chr1-55040059-A-G
• rs2495482
• NM_174936.4:c.207+15A>G

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_174936.4(PCSK9):​c.207+15A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.944 in 1,553,126 control chromosomes in the GnomAD database, including 692,792 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.92 (64013 hom., cov: 38)
  • Exomes 𝑓: 0.95 (628779 hom.)
• Consequence: PCSK9 NM_174936.4 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:16
• Conservation: PhyloP100: 0.224
• Publications: 14 publications found

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]

PCSK9 Gene-Disease associations (from GenCC):

• hypercholesterolemia, autosomal dominant, 3

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
• homozygous familial hypercholesterolemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 1-55040059-A-G is Benign according to our data. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-55040059-A-G is described in CliVar as Benign. Clinvar id is 262904.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.95 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCSK9	NM_174936.4	c.207+15A>G		intron_variant	Intron 1 of 11	ENST00000302118.5	NP_777596.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PCSK9	ENST00000302118.5	c.207+15A>G		intron_variant	Intron 1 of 11	1	NM_174936.4	ENSP00000303208.5

Frequencies

GnomAD3 genomes AF: 0.915 AC: 139342 AN: 152240 Hom.: 63976 Cov.: 38

Gnomad AFR AF: 0.835

Gnomad AMI AF: 0.952

Gnomad AMR AF: 0.903

Gnomad ASJ AF: 0.929

Gnomad EAS AF: 0.943

Gnomad SAS AF: 0.973

Gnomad FIN AF: 0.969

Gnomad MID AF: 0.920

Gnomad NFE AF: 0.951

Gnomad OTH AF: 0.921

GnomAD2 exomes AF: 0.928 AC: 147203 AN: 158652 AF XY: 0.936

Gnomad AFR exome AF: 0.830

Gnomad AMR exome AF: 0.836

Gnomad ASJ exome AF: 0.928

Gnomad EAS exome AF: 0.941

Gnomad FIN exome AF: 0.965

Gnomad NFE exome AF: 0.951

Gnomad OTH exome AF: 0.942

GnomAD4 exome AF: 0.947 AC: 1326590 AN: 1400768 Hom.: 628779 Cov.: 65 AF XY: 0.949 AC XY: 655717 AN XY: 691306

African (AFR) AF: 0.824 AC: 26196 AN: 31786

American (AMR) AF: 0.844 AC: 30671 AN: 36360

Ashkenazi Jewish (ASJ) AF: 0.929 AC: 23392 AN: 25188

East Asian (EAS) AF: 0.957 AC: 34475 AN: 36038

South Asian (SAS) AF: 0.970 AC: 76973 AN: 79368

European-Finnish (FIN) AF: 0.965 AC: 47003 AN: 48726

Middle Eastern (MID) AF: 0.943 AC: 4046 AN: 4292

European-Non Finnish (NFE) AF: 0.952 AC: 1029220 AN: 1080988

Other (OTH) AF: 0.941 AC: 54614 AN: 58022

GnomAD4 genome AF: 0.915 AC: 139434 AN: 152358 Hom.: 64013 Cov.: 38 AF XY: 0.917 AC XY: 68323 AN XY: 74510

African (AFR) AF: 0.835 AC: 34714 AN: 41572

American (AMR) AF: 0.902 AC: 13815 AN: 15310

Ashkenazi Jewish (ASJ) AF: 0.929 AC: 3224 AN: 3472

East Asian (EAS) AF: 0.943 AC: 4889 AN: 5182

South Asian (SAS) AF: 0.973 AC: 4705 AN: 4834

European-Finnish (FIN) AF: 0.969 AC: 10306 AN: 10632

Middle Eastern (MID) AF: 0.918 AC: 268 AN: 292

European-Non Finnish (NFE) AF: 0.951 AC: 64698 AN: 68038

Other (OTH) AF: 0.921 AC: 1947 AN: 2114

Alfa AF: 0.911 Hom.: 23111

Bravo AF: 0.904

Asia WGS AF: 0.953 AC: 3315 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:16

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:4

Sep 28, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-

Clinical Genetics, Academic Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jun 07, 2018

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hypercholesterolemia, autosomal dominant, 3 Benign:4

-

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 05, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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. -

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hypercholesterolemia, familial, 1 Benign:3

Jun 22, 2017

Color Diagnostics, LLC DBA Color Health

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 01, 2016

Iberoamerican FH Network

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: research

- -

Mar 01, 2016

Cardiovascular Research Group, Instituto Nacional de Saude Doutor Ricardo Jorge

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: research

- -

not provided Benign:2

Nov 30, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Familial hypercholesterolemia Benign:2

Jul 01, 2022

GENinCode PLC

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 09, 2023

Cohesion Phenomics

Significance: Benign

Review Status: no assertion criteria provided

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	6.8
DANN	Benign	0.46
PhyloP100		0.22
PromoterAI		0.12	Neutral
RBP_binding_hub_radar		0.67
RBP_regulation_power_radar		1.9
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2495482; hg19: chr1-55505732;