NM_003659.4:c.20C>T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_003659.4(AGPS):​c.20C>T​(p.Ala7Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000917 in 1,515,806 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 0.00040 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000057 ( 1 hom. )

Consequence

AGPS
NM_003659.4 missense

Scores

1
5
13

Clinical Significance

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

Conservation

PhyloP100: 0.290
Variant links:
Genes affected
AGPS (HGNC:327): (alkylglycerone phosphate synthase) This gene is a member of the FAD-binding oxidoreductase/transferase type 4 family. It encodes a protein that catalyzes the second step of ether lipid biosynthesis in which acyl-dihydroxyacetonephosphate (DHAP) is converted to alkyl-DHAP by the addition of a long chain alcohol and the removal of a long-chain acid anion. The protein is localized to the inner aspect of the peroxisomal membrane and requires FAD as a cofactor. Mutations in this gene have been associated with rhizomelic chondrodysplasia punctata, type 3 and Zellweger syndrome. [provided by RefSeq, Jul 2008]
NFE2L2 (HGNC:7782): (NFE2 like bZIP transcription factor 2) This gene encodes a transcription factor which is a member of a small family of basic leucine zipper (bZIP) proteins. The encoded transcription factor regulates genes which contain antioxidant response elements (ARE) in their promoters; many of these genes encode proteins involved in response to injury and inflammation which includes the production of free radicals. Multiple transcript variants encoding different isoforms have been characterized for this gene. [provided by RefSeq, Sep 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0064480305).
BP6
Variant 2-177392809-C-T is Benign according to our data. Variant chr2-177392809-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 383646.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000401 (61/152184) while in subpopulation AFR AF= 0.00135 (56/41548). AF 95% confidence interval is 0.00107. There are 0 homozygotes in gnomad4. There are 30 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AGPSNM_003659.4 linkc.20C>T p.Ala7Val missense_variant Exon 1 of 20 ENST00000264167.11 NP_003650.1 O00116
AGPSXM_047446105.1 linkc.20C>T p.Ala7Val missense_variant Exon 1 of 10 XP_047302061.1
AGPSXM_011512041.3 linkc.-326C>T upstream_gene_variant XP_011510343.1 B7Z3Q4
LOC100130691NR_026966.1 linkn.-118G>A upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AGPSENST00000264167.11 linkc.20C>T p.Ala7Val missense_variant Exon 1 of 20 1 NM_003659.4 ENSP00000264167.4 O00116

Frequencies

GnomAD3 genomes
AF:
0.000401
AC:
61
AN:
152072
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00135
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000147
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000975
AC:
12
AN:
123112
Hom.:
0
AF XY:
0.0000578
AC XY:
4
AN XY:
69178
show subpopulations
Gnomad AFR exome
AF:
0.00243
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000572
AC:
78
AN:
1363622
Hom.:
1
Cov.:
32
AF XY:
0.0000460
AC XY:
31
AN XY:
673640
show subpopulations
Gnomad4 AFR exome
AF:
0.00195
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000274
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000121
Gnomad4 OTH exome
AF:
0.000142
GnomAD4 genome
AF:
0.000401
AC:
61
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.000403
AC XY:
30
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.00135
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000412
ExAC
AF:
0.000113
AC:
12

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
May 06, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 7 of the AGPS protein (p.Ala7Val). This variant is present in population databases (rs539573652, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with AGPS-related conditions. ClinVar contains an entry for this variant (Variation ID: 383646). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified Benign:1
Feb 12, 2016
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
0.010
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T;T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.69
D
LIST_S2
Benign
0.55
T;T
M_CAP
Pathogenic
0.76
D
MetaRNN
Benign
0.0064
T;T
MetaSVM
Uncertain
0.084
D
MutationAssessor
Benign
1.4
L;.
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-0.19
N;N
REVEL
Uncertain
0.30
Sift
Benign
0.53
T;T
Sift4G
Benign
0.13
T;T
Polyphen
0.0
B;.
Vest4
0.26
MutPred
0.21
Gain of catalytic residue at A7 (P = 0.0366);Gain of catalytic residue at A7 (P = 0.0366);
MVP
0.64
MPC
0.88
ClinPred
0.072
T
GERP RS
3.8
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.1
Varity_R
0.077
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs539573652; hg19: chr2-178257537; API