chr7-141555469-G-C

Position:

• chr7-141555469-G-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_018238.4(AGK):​c.3G>C​(p.Met1?) variant causes a start lost change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: AGK NM_018238.4 start_lost
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 6.07

Genes affected

AGK (HGNC:21869): (acylglycerol kinase) The protein encoded by this gene is a mitochondrial membrane protein involved in lipid and glycerolipid metabolism. The encoded protein is a lipid kinase that catalyzes the formation of phosphatidic and lysophosphatidic acids. Defects in this gene have been associated with mitochondrial DNA depletion syndrome 10. [provided by RefSeq, Feb 2012]

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Start lost variant, no new inframe start found.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-141555469-G-C is Pathogenic according to our data. Variant chr7-141555469-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 214076.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AGK	NM_018238.4	c.3G>C	p.Met1?	start_lost	2/16	ENST00000649286.2	NP_060708.1
AGK	NM_001364948.3	c.3G>C	p.Met1?	start_lost	2/15		NP_001351877.1
AGK	XM_011516397.4	c.3G>C	p.Met1?	start_lost	2/16		XP_011514699.1
AGK	XM_024446835.2	c.3G>C	p.Met1?	start_lost	2/16		XP_024302603.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AGK	ENST00000649286.2	c.3G>C	p.Met1?	start_lost	2/16		NM_018238.4	ENSP00000497280	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Sengers syndrome Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Feb 10, 2012

- -

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Oct 21, 2014

p.Met1? (ATG>ATC): c.3 G>C in exon 2 of the AGK gene (NM_018238.3)The c.3 G>C mutation has been reported previously in association with Sengers syndrome in two individuals who were also heterozygous for another mutation in the AGK gene (Mayr et al., 2012). The mutation alters the initiator Methionine codon, and the resultant protein would be described as p.Met1?" using a question mark to signify that it is not known if the loss of Met1 means that all protein translation is completely prevented or if an abnormal protein is produced using an alternate Met. The variant is found in MITONUC-MITOP panel(s)." -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.62	D
BayesDel_noAF	Pathogenic	0.28
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.012	T;T;T;T;T;.;.
Eigen	Uncertain	0.23
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.90	.;D;.;.;D;D;D
M_CAP	Pathogenic	0.52	D
MetaRNN	Pathogenic	0.98	D;D;D;D;D;D;D
MetaSVM	Benign	-0.84	T
MutationTaster	Benign	1.0	D;D;D;D
PROVEAN	Benign	0.59	N;.;.;.;.;.;N
REVEL	Uncertain	0.30
Sift	Pathogenic	0.0	D;.;.;.;.;.;D
Sift4G	Pathogenic	0.0	D;T;.;.;.;.;D
Polyphen		0.92	P;.;P;P;P;.;.
Vest4		0.86
MutPred		0.92		Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);
MVP		0.57
ClinPred		0.97	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.73
gMVP		0.39

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		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

Other links and lift over

dbSNP: rs863223895; hg19: chr7-141255269;