rs372193709

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001166114.2(PNPLA6):​c.1205C>T​(p.Ser402Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000497 in 1,608,224 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. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S402S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

PNPLA6
NM_001166114.2 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.761

Publications

2 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: Orphanet, Labcorp Genetics (formerly Invitae)
  • 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the PNPLA6 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 29 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. Gene score misZ: 4.3547 (above the threshold of 3.09). Trascript score misZ: 3.5139 (above the threshold of 3.09). GenCC associations: The gene is linked to retinal dystrophy-ataxia-pituitary hormone abnormality-hypogonadism syndrome, cerebellar ataxia-hypogonadism syndrome, PNPLA6-related spastic paraplegia with or without ataxia, ataxia-hypogonadism-choroidal dystrophy syndrome, trichomegaly-retina pigmentary degeneration-dwarfism syndrome, hereditary spastic paraplegia 39, Laurence-Moon syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.07779297).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001166114.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA6
NM_001166114.2
MANE Select
c.1205C>Tp.Ser402Leu
missense
Exon 10 of 32NP_001159586.1A0A384DVU0
PNPLA6
NM_001166111.2
c.1232C>Tp.Ser411Leu
missense
Exon 12 of 34NP_001159583.1Q8IY17-4
PNPLA6
NM_001166113.1
c.1088C>Tp.Ser363Leu
missense
Exon 13 of 35NP_001159585.1Q8IY17-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA6
ENST00000600737.6
TSL:1 MANE Select
c.1205C>Tp.Ser402Leu
missense
Exon 10 of 32ENSP00000473211.1A0A384DVU0
PNPLA6
ENST00000221249.10
TSL:1
c.1088C>Tp.Ser363Leu
missense
Exon 13 of 35ENSP00000221249.5Q8IY17-2
PNPLA6
ENST00000450331.7
TSL:1
c.1088C>Tp.Ser363Leu
missense
Exon 13 of 35ENSP00000394348.2Q8IY17-2

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000406
AC:
10
AN:
246300
AF XY:
0.0000225
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000474
AC:
69
AN:
1456006
Hom.:
0
Cov.:
32
AF XY:
0.0000442
AC XY:
32
AN XY:
724576
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33474
American (AMR)
AF:
0.00
AC:
0
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47768
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5730
European-Non Finnish (NFE)
AF:
0.0000540
AC:
60
AN:
1111900
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60354
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000723
AC:
11
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74364
show subpopulations
African (AFR)
AF:
0.000169
AC:
7
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.443
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Hereditary spastic paraplegia (1)
-
1
-
Hereditary spastic paraplegia 39 (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
Peripheral neuropathy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.54
D
Eigen
Benign
-0.67
Eigen_PC
Benign
-0.59
FATHMM_MKL
Benign
0.096
N
LIST_S2
Benign
0.85
T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.078
T
MetaSVM
Benign
-0.96
T
PhyloP100
0.76
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-2.6
D
REVEL
Benign
0.052
Sift
Benign
0.11
T
Sift4G
Benign
0.23
T
Polyphen
0.0030
B
Vest4
0.34
MVP
0.19
MPC
0.15
ClinPred
0.034
T
GERP RS
3.5
Varity_R
0.078
gMVP
0.34
Mutation Taster
=88/12
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs372193709; hg19: chr19-7606906; COSMIC: COSV99653867; COSMIC: COSV99653867; API