NM_000446.7:c.75-639T>C

Variant names:

• chr7-95319032-A-G
• rs854565
• NM_000446.7:c.75-639T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000446.7(PON1):​c.75-639T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.684 in 151,924 control chromosomes in the GnomAD database, including 35,661 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.68 (35661 hom., cov: 31)
• Consequence: PON1 NM_000446.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.259
• Publications: 12 publications found

Genes affected

PON1 (HGNC:9204): (paraoxonase 1) This gene encodes a member of the paraoxonase family of enzymes and exhibits lactonase and ester hydrolase activity. Following synthesis in the kidney and liver, the enzyme is secreted into the circulation, where it binds to high density lipoprotein (HDL) particles and hydrolyzes thiolactones and xenobiotics, including paraoxon, a metabolite of the insecticide parathion. Polymorphisms in this gene may be associated with coronary artery disease and diabetic retinopathy. The gene is found in a cluster of three related paraoxonase genes on chromosome 7. [provided by RefSeq, Aug 2017]

PON1 Gene-Disease associations (from GenCC):

• amyotrophic lateral sclerosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.695 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000446.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PON1	NM_000446.7	MANE Select	c.75-639T>C		intron	N/A	NP_000437.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PON1	ENST00000222381.8	TSL:1 MANE Select	c.75-639T>C		intron	N/A	ENSP00000222381.3
	PON1	ENST00000433729.1	TSL:3	n.75-639T>C		intron	N/A	ENSP00000407359.1

Frequencies

GnomAD3 genomes AF: 0.684 AC: 103864 AN: 151806 Hom.: 35626 Cov.: 31

Gnomad AFR AF: 0.652

Gnomad AMI AF: 0.705

Gnomad AMR AF: 0.705

Gnomad ASJ AF: 0.747

Gnomad EAS AF: 0.683

Gnomad SAS AF: 0.597

Gnomad FIN AF: 0.682

Gnomad MID AF: 0.748

Gnomad NFE AF: 0.701

Gnomad OTH AF: 0.714

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.684 AC: 103956 AN: 151924 Hom.: 35661 Cov.: 31 AF XY: 0.683 AC XY: 50679 AN XY: 74230

African (AFR) AF: 0.653 AC: 27030 AN: 41414

American (AMR) AF: 0.705 AC: 10769 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.747 AC: 2590 AN: 3468

East Asian (EAS) AF: 0.683 AC: 3528 AN: 5162

South Asian (SAS) AF: 0.598 AC: 2876 AN: 4812

European-Finnish (FIN) AF: 0.682 AC: 7188 AN: 10538

Middle Eastern (MID) AF: 0.743 AC: 217 AN: 292

European-Non Finnish (NFE) AF: 0.701 AC: 47607 AN: 67954

Other (OTH) AF: 0.717 AC: 1512 AN: 2110

Alfa AF: 0.695 Hom.: 48635

Bravo AF: 0.690

Asia WGS AF: 0.662 AC: 2304 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	1.2
DANN	Benign	0.30
PhyloP100		-0.26
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: rs854565; hg19: chr7-94948344;