rs1210030445

chr1-55052725-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_174936.4(PCSK9):c.733G>A(p.Ala245Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 35)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PCSK9 NM_174936.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.672

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3390498).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCSK9	NM_174936.4	c.733G>A	p.Ala245Thr	missense_variant	5/12	ENST00000302118.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCSK9	ENST00000302118.5	c.733G>A	p.Ala245Thr	missense_variant	5/12	1	NM_174936.4	P2

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD3 exomes AF: 0.00000402 AC: 1 AN: 248998 Hom.: 0 AF XY: 0.00000740 AC XY: 1 AN XY: 135162

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000895

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460798 Hom.: 0 Cov.: 81 AF XY: 0.00000138 AC XY: 1 AN XY: 726718

Gnomad4 AFR exome AF: 0.00

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 35

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hypercholesterolemia, familial, 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

curation;literature only

Cardiovascular Research Group, Instituto Nacional de Saude Doutor Ricardo Jorge

Mar 01, 2016

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.029	T
BayesDel_noAF	Benign	-0.28
Cadd	Benign	0.94
Dann	Benign	0.94
DEOGEN2	Benign	0.19	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.083	N
LIST_S2	Benign	0.68	T
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.34	T
MetaSVM	Benign	-0.61	T
MutationAssessor	Uncertain	2.3	M
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.27
Sift	Benign	0.26	T
Sift4G	Benign	0.44	T
Polyphen		0.075	B
Vest4		0.23
MutPred		0.84		Loss of MoRF binding (P = 0.1424);
MVP		0.66
MPC		0.24
ClinPred		0.075	T
GERP RS		-7.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.8
Varity_R		0.13
gMVP		0.49

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs1210030445; hg19: chr1-55518398;