Genetic Variant PCSK9:c.1503+46_1503+71delGTGTGTGTGTGTGTGTGTGTGTGTGT (chr1-55058666-CGTGTGTGTGTGTGTGTGTGTGTGTGT-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP6_Moderate

The NM_174936.4(PCSK9):c.1503+46_1503+71delGTGTGTGTGTGTGTGTGTGTGTGTGT variant causes a intron change involving the alteration of a non-conserved nucleotide. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000035 ( 0 hom., cov: 0)

Exomes 𝑓: 0.00016 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PCSK9
NM_174936.4 intron

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.564

Publications

1 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, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
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 -2 ACMG points.

BP6

Variant 1-55058666-CGTGTGTGTGTGTGTGTGTGTGTGTGT-C is Benign according to our data. Variant chr1-55058666-CGTGTGTGTGTGTGTGTGTGTGTGTGT-C is described in ClinVar as Likely_benign. ClinVar VariationId is 2859698.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCSK9	NM_174936.4 link	c.1503+46_1503+71delGTGTGTGTGTGTGTGTGTGTGTGTGT		intron_variant	Intron 9 of 11	ENST00000302118.5	NP_777596.2	Q8NBP7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PCSK9	ENST00000302118.5 link	c.1503+20_1503+45delGTGTGTGTGTGTGTGTGTGTGTGTGT		intron_variant	Intron 9 of 11	1	NM_174936.4	ENSP00000303208.5		Q8NBP7-1

Frequencies

GnomAD3 genomes

AF:

0.0000351

AC:

AN:

142438

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000530

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:

0.0000459

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000157

AC:

219

AN:

1392912

Hom.:

AF XY:

0.000135

AC XY:

AN XY:

690658

show subpopulations

African (AFR)

AF:

0.000190

AC:

AN:

31628

American (AMR)

AF:

0.00

AC:

AN:

39552

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24880

East Asian (EAS)

AF:

0.0000541

AC:

AN:

36988

South Asian (SAS)

AF:

0.0000369

AC:

AN:

81354

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47988

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4014

European-Non Finnish (NFE)

AF:

0.000191

AC:

204

AN:

1068944

Other (OTH)

AF:

0.0000695

AC:

AN:

57564

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.0000351

AC:

AN:

142438

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

68948

show subpopulations

African (AFR)

AF:

0.0000530

AC:

AN:

37764

American (AMR)

AF:

0.00

AC:

AN:

14588

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3364

East Asian (EAS)

AF:

0.00

AC:

AN:

4752

South Asian (SAS)

AF:

0.00

AC:

AN:

4378

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9152

Middle Eastern (MID)

AF:

0.00

AC:

AN:

296

European-Non Finnish (NFE)

AF:

0.0000459

AC:

AN:

65320

Other (OTH)

AF:

0.00

AC:

AN:

1944

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

1122

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hypercholesterolemia, autosomal dominant, 3

Benign:1

Oct 31, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.56

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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1-55058666-CGTGTGTGTGTGTGTGTGTGTGTGTGTGTGTGTGTGT-CGTGTGTGTGT

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over