rs774909110

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001166114.2(PNPLA6):c.2907T>C(p.Ile969Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000401 in 1,473,066 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000049 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000039 ( 1 hom. )

Consequence

PNPLA6
NM_001166114.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.794

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

ataxia-hypogonadism-choroidal dystrophy syndrome
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
PNPLA6-related spastic paraplegia with or without ataxia
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
retinal dystrophy-ataxia-pituitary hormone abnormality-hypogonadism syndrome
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
hereditary spastic paraplegia 39
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
cerebellar ataxia-hypogonadism syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Laurence-Moon syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
trichomegaly-retina pigmentary degeneration-dwarfism syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PNPLA6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 19-7555338-T-C is Benign according to our data. Variant chr19-7555338-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 537339.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.794 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PNPLA6	NM_001166114.2 link	c.2907T>C	p.Ile969Ile	synonymous_variant	Exon 23 of 32	ENST00000600737.6	NP_001159586.1	Q8IY17A0A384DVU0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PNPLA6	ENST00000600737.6 link	c.2907T>C	p.Ile969Ile	synonymous_variant	Exon 23 of 32	1	NM_001166114.2	ENSP00000473211.1		A0A384DVU0

Frequencies

GnomAD3 genomes

AF:

0.0000494

AC:

AN:

141706

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00147

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000304

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000132

AC:

AN:

174558

AF XY:

0.000139

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00218

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000421

Gnomad OTH exome

AF:

0.000212

GnomAD4 exome

AF:

0.0000391

AC:

AN:

1331360

Hom.:

Cov.:

AF XY:

0.0000471

AC XY:

AN XY:

658578

show subpopulations

African (AFR)

AF:

0.0000332

AC:

AN:

30142

American (AMR)

AF:

0.00

AC:

AN:

35508

Ashkenazi Jewish (ASJ)

AF:

0.00151

AC:

AN:

22536

East Asian (EAS)

AF:

0.00

AC:

AN:

31540

South Asian (SAS)

AF:

0.00

AC:

AN:

79870

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40536

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5318

European-Non Finnish (NFE)

AF:

0.00000871

AC:

AN:

1032764

Other (OTH)

AF:

0.000151

AC:

AN:

53146

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000494

AC:

AN:

141706

Hom.:

Cov.:

AF XY:

0.0000582

AC XY:

AN XY:

68682

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

37894

American (AMR)

AF:

0.00

AC:

AN:

13814

Ashkenazi Jewish (ASJ)

AF:

0.00147

AC:

AN:

3394

East Asian (EAS)

AF:

0.00

AC:

AN:

4374

South Asian (SAS)

AF:

0.00

AC:

AN:

4112

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9198

Middle Eastern (MID)

AF:

0.00

AC:

AN:

276

European-Non Finnish (NFE)

AF:

0.0000304

AC:

AN:

65842

Other (OTH)

AF:

0.00

AC:

AN:

1912

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

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000315

Hom.:

Bravo

AF:

0.0000340

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

PNPLA6-related disorder

Benign:1

Sep 11, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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). -

Hereditary spastic paraplegia 39

Benign:1

Oct 05, 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

BayesDel_noAF

Benign

-0.71

CADD

Benign

2.7

(source)

DANN

Benign

0.64

PhyloP100

-0.79

PromoterAI

-0.017

Neutral

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over