chr3-11298778-A-T

Position:

• chr3-11298778-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001349232.2(ATG7):​c.83A>T​(p.His28Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,882 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: ATG7 NM_001349232.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.78

Genes affected

ATG7 (HGNC:16935): (autophagy related 7) This gene encodes an E1-like activating enzyme that is essential for autophagy and cytoplasmic to vacuole transport. The encoded protein is also thought to modulate p53-dependent cell cycle pathways during prolonged metabolic stress. It has been associated with multiple functions, including axon membrane trafficking, axonal homeostasis, mitophagy, adipose differentiation, and hematopoietic stem cell maintenance. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.851

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATG7	NM_001349232.2	c.83A>T	p.His28Leu	missense_variant	4/21	ENST00000693202.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATG7	ENST00000693202.1	c.83A>T	p.His28Leu	missense_variant	4/21		NM_001349232.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461882 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727240

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: 0.00000360

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2021

The c.83A>T (p.H28L) alteration is located in exon 2 (coding exon 1) of the ATG7 gene. This alteration results from a A to T substitution at nucleotide position 83, causing the histidine (H) at amino acid position 28 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.69
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
CADD	Uncertain	25
DANN	Benign	0.97
DEOGEN2	Benign	0.34	T;.;.;.;.;.;D;T;.
Eigen	Pathogenic	0.97
Eigen_PC	Pathogenic	0.93
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D;D;D;D;D;D;D;D;D
M_CAP	Benign	0.037	D
MetaRNN	Pathogenic	0.85	D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.16	T
MutationAssessor	Pathogenic	3.0	.;.;.;.;M;M;M;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Pathogenic	-8.9	D;D;D;D;D;D;D;D;D
REVEL	Uncertain	0.54
Sift	Uncertain	0.0020	D;D;D;D;D;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D;D;D
Polyphen		1.0, 1.0	.;.;.;.;.;D;D;.;.
Vest4		0.90, 0.90, 0.91
MutPred		0.48		Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);Loss of ubiquitination at K33 (P = 0.0699);
MVP		0.89
MPC		0.35
ClinPred		1.0	D
GERP RS		6.2
Varity_R		0.88
gMVP		0.83

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-11340252;