chr1-55056028-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_174936.4(PCSK9):ā€‹c.835C>Gā€‹(p.Pro279Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,457,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P279T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

PCSK9
NM_174936.4 missense

Scores

1
5
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.85
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]

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ACMG classification

Classification made for transcript

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=0.38147944).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PCSK9NM_174936.4 linkuse as main transcriptc.835C>G p.Pro279Ala missense_variant 6/12 ENST00000302118.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PCSK9ENST00000302118.5 linkuse as main transcriptc.835C>G p.Pro279Ala missense_variant 6/121 NM_174936.4 P2Q8NBP7-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000411
AC:
1
AN:
243220
Hom.:
0
AF XY:
0.00000756
AC XY:
1
AN XY:
132360
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000921
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1457940
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
724680
show subpopulations
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:
9.01e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.0026
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T
Eigen
Benign
0.094
Eigen_PC
Benign
0.014
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.71
T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.38
T
MetaSVM
Uncertain
0.056
D
MutationAssessor
Benign
0.13
N
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-2.4
N
REVEL
Uncertain
0.50
Sift
Benign
0.12
T
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.28
MutPred
0.56
Loss of solvent accessibility (P = 0.089);
MVP
0.89
MPC
0.42
ClinPred
0.47
T
GERP RS
3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.38

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs72646509; hg19: chr1-55521701; API