2-177392837-C-A

Variant names:

• chr2-177392837-C-A
• rs771444195
• NM_003659.4:c.48C>A

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_003659.4(AGPS):​c.48C>A​(p.Gly16Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 152,016 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. G16G) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: AGPS NM_003659.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.286
• Publications: 0 publications found

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]

ENSG00000213963 (HGNC:):

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]

NFE2L2 Gene-Disease associations (from GenCC):

• immunodeficiency, developmental delay, and hypohomocysteinemia

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Illumina, ClinGen, G2P, Labcorp Genetics (formerly Invitae)

ACMG classification

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=-0.47).
• BP6: Variant 2-177392837-C-A is Benign according to our data. Variant chr2-177392837-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2695891.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.286 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003659.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AGPS	NM_003659.4	MANE Select	c.48C>A	p.Gly16Gly	synonymous	Exon 1 of 20	NP_003650.1	O00116
	LOC100130691	NR_026966.1		n.-146G>T		upstream_gene	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AGPS	ENST00000264167.11	TSL:1 MANE Select	c.48C>A	p.Gly16Gly	synonymous	Exon 1 of 20	ENSP00000264167.4	O00116
	AGPS	ENST00000642466.2		c.48C>A	p.Gly16Gly	synonymous	Exon 1 of 21	ENSP00000494433.2	A0A2R8YEL0
	AGPS	ENST00000927419.1		c.48C>A	p.Gly16Gly	synonymous	Exon 1 of 20	ENSP00000597478.1

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152016 Hom.: 0 Cov.: 32

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: 0.0000294

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1394334 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 689092

African (AFR) AF: 0.00 AC: 0 AN: 31108

American (AMR) AF: 0.00 AC: 0 AN: 36186

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24566

East Asian (EAS) AF: 0.00 AC: 0 AN: 35800

South Asian (SAS) AF: 0.00 AC: 0 AN: 79166

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40538

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4378

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1084650

Other (OTH) AF: 0.00 AC: 0 AN: 57942

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152016 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74248

African (AFR) AF: 0.00 AC: 0 AN: 41430

American (AMR) AF: 0.00 AC: 0 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5152

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 312

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 67946

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.47
CADD	Benign	7.1
DANN	Benign	0.81
PhyloP100		0.29
PromoterAI		-0.026	Neutral
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.1
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs771444195; hg19: chr2-178257565;