rs1135402728

Variant names:

• chr18-45967238-A-G
• rs1135402728
• NM_020964.3:c.2T>C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_Supporting PM2

The NM_020964.3(EPG5):​c.2T>C​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000692 in 1,444,738 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 no classification for the single variant (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: EPG5 NM_020964.3 start_lost
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.47

Genes affected

EPG5 (HGNC:29331): (ectopic P-granules 5 autophagy tethering factor) This gene encodes a large coiled coil domain-containing protein that functions in autophagy during starvation conditions. Mutations in this gene cause Vici syndrome. [provided by RefSeq, Aug 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PVS1: Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 80 codons. Genomic position: 45955164. Lost 0.031 part of the original CDS.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPG5	NM_020964.3	c.2T>C	p.Met1?	start_lost	Exon 1 of 44	ENST00000282041.11	NP_066015.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPG5	ENST00000282041.11	c.2T>C	p.Met1?	start_lost	Exon 1 of 44	1	NM_020964.3	ENSP00000282041.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.92e-7 AC: 1 AN: 1444738 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 717628

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: 9.06e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Uncertain	-0.060
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.021	T;T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.90	.;D
M_CAP	Pathogenic	0.34	D
MetaRNN	Pathogenic	0.96	D;D
MetaSVM	Benign	-1.1	T
PROVEAN	Benign	-1.4	N;.
REVEL	Benign	0.22
Sift	Uncertain	0.0030	D;.
Sift4G	Pathogenic	0.0	D;.
Polyphen		0.96	D;D
Vest4		0.96
MutPred		0.83		Gain of helix (P = 0.0225);Gain of helix (P = 0.0225);
MVP		0.48
ClinPred		0.99	D
GERP RS		4.8
Varity_R		0.81
gMVP		0.31

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

Other links and lift over

dbSNP: rs1135402728; hg19: chr18-43547204;