rs120074145

Variant names:

• chr11-108134260-A-G
• rs120074145
• NM_000019.4:c.278A>G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_Supporting PM2 PP5_Moderate

The NM_001386679.1(ACAT1):​c.1A>G​(p.Met1?) variant causes a start lost change involving the alteration of a conserved nucleotide. 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 Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 30)
• Consequence: ACAT1 NM_001386679.1 start_lost
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 8.82

Genes affected

ACAT1 (HGNC:93): (acetyl-CoA acetyltransferase 1) This gene encodes a mitochondrially localized enzyme that catalyzes the reversible formation of acetoacetyl-CoA from two molecules of acetyl-CoA. Defects in this gene are associated with 3-ketothiolase deficiency, an inborn error of isoleucine catabolism characterized by urinary excretion of 2-methyl-3-hydroxybutyric acid, 2-methylacetoacetic acid, tiglylglycine, and butanone. [provided by RefSeq, Feb 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 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 31 codons. Genomic position: 108135195. Lost 0.092 part of the original CDS.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-108134260-A-G is Pathogenic according to our data. Variant chr11-108134260-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2843.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACAT1	NM_000019.4	c.278A>G	p.Asn93Ser	missense_variant	Exon 4 of 12	ENST00000265838.9	NP_000010.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACAT1	ENST00000265838.9	c.278A>G	p.Asn93Ser	missense_variant	Exon 4 of 12	1	NM_000019.4	ENSP00000265838.4

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 30

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Deficiency of acetyl-CoA acetyltransferase Pathogenic:2

May 05, 2019

Department of Pediatrics, Gifu University

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

Jan 01, 1998

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.67	D;.;.
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D;D;D
M_CAP	Uncertain	0.19	D
MetaRNN	Pathogenic	0.95	D;D;D
MetaSVM	Pathogenic	0.93	D
MutationAssessor	Benign	1.9	L;L;.
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-4.1	D;D;D
REVEL	Uncertain	0.58
Sift	Uncertain	0.015	D;D;D
Sift4G	Uncertain	0.016	D;D;T
Polyphen		0.23	B;.;.
Vest4		0.82
MutPred		0.91		Loss of catalytic residue at N93 (P = 0.0297);Loss of catalytic residue at N93 (P = 0.0297);.;
MVP		0.91
MPC		0.17
ClinPred		0.94	D
GERP RS		5.7
Varity_R		0.56
gMVP		0.76

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs120074145; hg19: chr11-108004987;