rs1445755893

Variant names:

• chr5-115841488-A-C
• rs1445755893
• NM_004707.4:c.65T>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004707.4(ATG12):​c.65T>G​(p.Leu22Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000617 in 1,459,672 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000062 (0 hom.)
• Consequence: ATG12 NM_004707.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.385

Genes affected

ATG12 (HGNC:588): (autophagy related 12) Autophagy is a process of bulk protein degradation in which cytoplasmic components, including organelles, are enclosed in double-membrane structures called autophagosomes and delivered to lysosomes or vacuoles for degradation. ATG12 is the human homolog of a yeast protein involved in autophagy (Mizushima et al., 1998 [PubMed 9852036]).[supplied by OMIM, Mar 2008]

AP3S1 (HGNC:2013): (adaptor related protein complex 3 subunit sigma 1) This gene encodes a subunit of the AP3 adaptor complex. This complex functions in the formation of subcellular vesicles budded from the Golgi body. Several related pseudogenes of this gene have been found. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06852993).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATG12	NM_004707.4	c.65T>G	p.Leu22Arg	missense_variant	Exon 1 of 4	ENST00000509910.2	NP_004698.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATG12	ENST00000509910.2	c.65T>G	p.Leu22Arg	missense_variant	Exon 1 of 4	1	NM_004707.4	ENSP00000425107.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000617 AC: 9 AN: 1459672 Hom.: 0 Cov.: 33 AF XY: 0.00000688 AC XY: 5 AN XY: 726282

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: 0.00000720

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 31

Alfa AF: 0.0000386 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Aug 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.65T>G (p.L22R) alteration is located in exon 1 (coding exon 1) of the ATG12 gene. This alteration results from a T to G substitution at nucleotide position 65, causing the leucine (L) at amino acid position 22 to be replaced by an arginine (R). 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	Benign	0.072
BayesDel_addAF	Benign	-0.093	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	9.5
DANN	Uncertain	0.98
DEOGEN2	Benign	0.022	T;.
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.028	N
LIST_S2	Benign	0.73	T;T
M_CAP	Benign	0.0057	T
MetaRNN	Benign	0.069	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.9	M;M
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-0.34	N;D
REVEL	Benign	0.046
Sift	Benign	0.56	T;D
Sift4G	Benign	0.33	T;T
Polyphen		0.61	P;.
Vest4		0.20
MVP		0.26
MPC		0.0040
ClinPred		0.21	T
GERP RS		-1.3
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.7
Varity_R		0.11
gMVP		0.34

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

Other links and lift over

dbSNP: rs1445755893; hg19: chr5-115177185;