rs765249233

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PVS1_Supporting

The NM_001166111.2(PNPLA6):​c.2T>C​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000281 in 1,603,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

PNPLA6
NM_001166111.2 start_lost

Scores

2
5
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.610

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PVS1
Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 9 codons. Genomic position: 7535575. Lost 0.006 part of the original CDS.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001166111.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA6
NM_001166111.2
c.2T>Cp.Met1?
start_lost
Exon 2 of 34NP_001159583.1Q8IY17-4
PNPLA6
NM_001166113.1
c.2T>Cp.Met1?
start_lost
Exon 3 of 35NP_001159585.1Q8IY17-2
PNPLA6
NM_006702.5
c.2T>Cp.Met1?
start_lost
Exon 3 of 35NP_006693.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA6
ENST00000221249.10
TSL:1
c.2T>Cp.Met1?
start_lost
Exon 3 of 35ENSP00000221249.5Q8IY17-2
PNPLA6
ENST00000450331.7
TSL:1
c.2T>Cp.Met1?
start_lost
Exon 3 of 35ENSP00000394348.2Q8IY17-2
ENSG00000268614
ENST00000601870.1
TSL:4
n.*415T>C
non_coding_transcript_exon
Exon 6 of 10ENSP00000471492.1M0R0W3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000954
AC:
22
AN:
230514
AF XY:
0.0000481
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000582
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000289
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000289
AC:
42
AN:
1451796
Hom.:
0
Cov.:
31
AF XY:
0.0000277
AC XY:
20
AN XY:
721052
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33334
American (AMR)
AF:
0.000462
AC:
20
AN:
43254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25870
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39372
South Asian (SAS)
AF:
0.0000119
AC:
1
AN:
84320
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52256
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000172
AC:
19
AN:
1107650
Other (OTH)
AF:
0.0000333
AC:
2
AN:
59980
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152128
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74306
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41432
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3460
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000676
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000331
AC:
4

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Hereditary spastic paraplegia 39 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Benign
-0.44
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.018
T
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.090
FATHMM_MKL
Benign
0.30
N
LIST_S2
Uncertain
0.90
D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.85
D
MetaSVM
Benign
-1.0
T
PhyloP100
0.61
PROVEAN
Benign
-1.7
N
REVEL
Benign
0.14
Sift
Uncertain
0.015
D
Sift4G
Uncertain
0.045
D
Polyphen
0.0030
B
Vest4
0.64
MutPred
1.0
Gain of glycosylation at M1 (P = 0.0049)
MVP
0.26
ClinPred
0.11
T
GERP RS
4.2
PromoterAI
-0.010
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.94
gMVP
0.39
Mutation Taster
=73/127
disease causing

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

Other links and lift over

dbSNP: rs765249233; hg19: chr19-7600438; API