rs200310048

Positions:

chr19-7535950-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_001166114.2(PNPLA6):c.162C>T(p.Ile54Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000317 in 1,588,022 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00031 ( 1 hom. )

Consequence

PNPLA6
NM_001166114.2 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -0.546

Variant links:

Genes affected

PNPLA6 (HGNC:16268): (patatin like phospholipase domain containing 6) This gene encodes a phospholipase that deacetylates intracellular phosphatidylcholine to produce glycerophosphocholine. It is thought to function in neurite outgrowth and process elongation during neuronal differentiation. The protein is anchored to the cytoplasmic face of the endoplasmic reticulum in both neurons and non-neuronal cells. Mutations in this gene result in autosomal recessive spastic paraplegia, and the protein is the target for neurodegeneration induced by organophosphorus compounds and chemical warfare agents. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

PNPLA6 links:

ENSG00000268614 (HGNC:):

ENSG00000268614 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 19-7535950-C-T is Benign according to our data. Variant chr19-7535950-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 240702.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=1}. Variant chr19-7535950-C-T is described in Lovd as [Benign]. Variant chr19-7535950-C-T is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-0.546 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PNPLA6	NM_001166114.2 linkuse as main transcript	c.162C>T	p.Ile54Ile	synonymous_variant	1/32	ENST00000600737.6	NP_001159586.1	Q8IY17A0A384DVU0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
PNPLA6	ENST00000600737.6 linkuse as main transcript	c.162C>T	p.Ile54Ile	synonymous_variant	1/32	1	NM_001166114.2	ENSP00000473211.1	A0A384DVU0
ENSG00000268614	ENST00000601870.1 linkuse as main transcript	n.*458C>T		non_coding_transcript_exon_variant	7/10	4		ENSP00000471492.1	M0R0W3
ENSG00000268614	ENST00000601870.1 linkuse as main transcript	n.*458C>T		3_prime_UTR_variant	7/10	4		ENSP00000471492.1	M0R0W3

Frequencies

GnomAD3 genomes

AF:

0.000408

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00329

Gnomad AMR

AF:

0.00177

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000660

AC:

139

AN:

210634

Hom.:

AF XY:

0.000624

AC XY:

AN XY:

113866

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00201

Gnomad ASJ exome

AF:

0.00120

Gnomad EAS exome

AF:

0.0000626

Gnomad SAS exome

AF:

0.00101

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000218

Gnomad OTH exome

AF:

0.00358

GnomAD4 exome

AF:

0.000307

AC:

441

AN:

1435764

Hom.:

Cov.:

AF XY:

0.000321

AC XY:

229

AN XY:

712574

show subpopulations

Gnomad4 AFR exome

AF:

0.0000900

Gnomad4 AMR exome

AF:

0.00197

Gnomad4 ASJ exome

AF:

0.00137

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000158

Gnomad4 OTH exome

AF:

0.000620

GnomAD4 genome

AF:

0.000407

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.00176

Gnomad4 ASJ

AF:

0.00202

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000382

Hom.:

Bravo

AF:

0.000695

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 39

Uncertain:1Benign:1

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 04, 2024	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Mar 01, 2024	PNPLA6: BP4, BP7 -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

not specified

Benign:1

Benign, no assertion criteria provided

clinical testing

Clinical Genetics, Academic Medical Center

- -

PNPLA6-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 18, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

9.6

DANN

Benign

0.95

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over