rs139669564

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_174936.4(PCSK9):c.1487G>A(p.Arg496Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,611,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R496W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

PCSK9
NM_174936.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:4B:8

Conservation

PhyloP100: 1.47

Publications

6 publications found

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]

PCSK9 Gene-Disease associations (from GenCC):

hypercholesterolemia, autosomal dominant, 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
homozygous familial hypercholesterolemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PCSK9 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.01776591).

BP6

Variant 1-55058631-G-A is Benign according to our data. Variant chr1-55058631-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 438338.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_174936.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PCSK9	NM_174936.4	MANE Select	c.1487G>A	p.Arg496Gln	missense	Exon 9 of 12	NP_777596.2
PCSK9	NM_001407240.1		c.1610G>A	p.Arg537Gln	missense	Exon 10 of 13	NP_001394169.1	A0AAQ5BGX4
PCSK9	NM_001407241.1		c.1487G>A	p.Arg496Gln	missense	Exon 9 of 12	NP_001394170.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PCSK9	ENST00000302118.5	TSL:1 MANE Select	c.1487G>A	p.Arg496Gln	missense	Exon 9 of 12	ENSP00000303208.5	Q8NBP7-1
PCSK9	ENST00000710286.1		c.1844G>A	p.Arg615Gln	missense	Exon 9 of 12	ENSP00000518176.1	A0AA34QVH0
PCSK9	ENST00000713786.1		c.1610G>A	p.Arg537Gln	missense	Exon 10 of 13	ENSP00000519088.1	A0AAQ5BGX4

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152098

Hom.:

Cov.:

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:

0.000194

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000254

AC:

AN:

247982

AF XY:

0.000335

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000179

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000178

AC:

259

AN:

1458792

Hom.:

Cov.:

109

AF XY:

0.000247

AC XY:

179

AN XY:

725636

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33398

American (AMR)

AF:

0.00

AC:

AN:

44630

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39646

South Asian (SAS)

AF:

0.00157

AC:

135

AN:

86116

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52824

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4138

European-Non Finnish (NFE)

AF:

0.000106

AC:

118

AN:

1111734

Other (OTH)

AF:

0.0000997

AC:

AN:

60182

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000985

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74412

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41538

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000194

AC:

AN:

5144

South Asian (SAS)

AF:

0.00145

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000111

Hom.:

Bravo

AF:

0.0000529

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000313

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000238

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hypercholesterolemia, autosomal dominant, 3 (3)

Hypercholesterolemia, familial, 1 (3)

not specified (3)

not provided (2)

Cardiovascular phenotype (1)

Familial hypercholesterolemia (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.078

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.17

Eigen

Benign

-0.52

Eigen_PC

Benign

-0.63

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.75

M_CAP

Benign

0.015

MetaRNN

Benign

0.018

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.3

PhyloP100

1.5

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.32

REVEL

Benign

0.16

Sift

Benign

0.42

Sift4G

Benign

0.28

Polyphen

0.91

Vest4

0.15

MVP

0.80

MPC

0.27

ClinPred

0.063

GERP RS

-1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.20

gMVP

0.62

Mutation Taster

=89/11

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over