chr1-231241444-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_014236.4(GNPAT):​c.66G>A​(p.Val22=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,459,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. V22V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

GNPAT
NM_014236.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.424
Variant links:
Genes affected
GNPAT (HGNC:4416): (glyceronephosphate O-acyltransferase) This gene encodes an enzyme located in the peroxisomal membrane which is essential to the synthesis of ether phospholipids. Mutations in this gene are associated with rhizomelic chondrodysplasia punctata. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 1-231241444-G-A is Benign according to our data. Variant chr1-231241444-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2902955.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.424 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GNPATNM_014236.4 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/16 ENST00000366647.9
GNPATNM_001316350.2 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/15
GNPATXM_005273313.5 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/16

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GNPATENST00000366647.9 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/161 NM_014236.4 P1O15228-1
GNPATENST00000416000.1 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/135
GNPATENST00000436239.5 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant 1/63
GNPATENST00000644483.1 linkuse as main transcriptc.66G>A p.Val22= synonymous_variant, NMD_transcript_variant 1/17

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248970
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134782
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1459936
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726474
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000314
Hom.:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 21, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
4.2
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1558321001; hg19: chr1-231377190; API