NM_000666.3:c.81C>G

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000666.3(ACY1):c.81C>G(p.Pro27Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00297 in 1,613,960 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0030 ( 15 hom. )

Consequence

ACY1
NM_000666.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -4.54

Variant links:

Genes affected

ACY1 (HGNC:177): (aminoacylase 1) This gene encodes a cytosolic, homodimeric, zinc-binding enzyme that catalyzes the hydrolysis of acylated L-amino acids to L-amino acids and an acyl group, and has been postulated to function in the catabolism and salvage of acylated amino acids. This gene is located on chromosome 3p21.1, a region reduced to homozygosity in small-cell lung cancer (SCLC), and its expression has been reported to be reduced or undetectable in SCLC cell lines and tumors. The amino acid sequence of human aminoacylase-1 is highly homologous to the porcine counterpart, and this enzyme is the first member of a new family of zinc-binding enzymes. Mutations in this gene cause aminoacylase-1 deficiency, a metabolic disorder characterized by central nervous system defects and increased urinary excretion of N-acetylated amino acids. Alternative splicing of this gene results in multiple transcript variants. Read-through transcription also exists between this gene and the upstream ABHD14A (abhydrolase domain containing 14A) gene, as represented in GeneID:100526760. A related pseudogene has been identified on chromosome 18. [provided by RefSeq, Nov 2010]

ACY1 links:

ABHD14A-ACY1 (HGNC:38856): (ABHD14A-ACY1 readthrough) This locus represents naturally occurring read-through transcription between the neighboring abhydrolase domain containing 14A (ABHD14A) and aminoacylase 1 (ACY1) genes on chromosome 3. The read-through transcript encodes a protein that shares sequence identity with the downstream gene product but its N-terminal region is distinct due to the use of an alternate start codon relative to the upstream gene. [provided by RefSeq, Oct 2015]

ABHD14A-ACY1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 3-51984145-C-G is Benign according to our data. Variant chr3-51984145-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 721267.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-4.54 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00283 (431/152362) while in subpopulation NFE AF= 0.00388 (264/68028). AF 95% confidence interval is 0.0035. There are 0 homozygotes in gnomad4. There are 211 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 15 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACY1	NM_000666.3 link	c.81C>G	p.Pro27Pro	synonymous_variant	Exon 2 of 15	ENST00000636358.2	NP_000657.1	Q03154-1V9HWA0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACY1	ENST00000636358.2 link	c.81C>G	p.Pro27Pro	synonymous_variant	Exon 2 of 15	1	NM_000666.3	ENSP00000490149.1		Q03154-1
ABHD14A-ACY1	ENST00000463937.1 link	c.398-1062C>G		intron_variant	Intron 3 of 15	5		ENSP00000420487.1		C9JMV9

Frequencies

GnomAD3 genomes

AF:

0.00284

AC:

432

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00294

Gnomad ASJ

AF:

0.00951

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00103

Gnomad FIN

AF:

0.00621

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00388

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.00330

AC:

825

AN:

250106

Hom.:

AF XY:

0.00356

AC XY:

482

AN XY:

135334

show subpopulations

Gnomad AFR exome

AF:

0.000555

Gnomad AMR exome

AF:

0.000810

Gnomad ASJ exome

AF:

0.0109

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00258

Gnomad FIN exome

AF:

0.00655

Gnomad NFE exome

AF:

0.00390

Gnomad OTH exome

AF:

0.00311

GnomAD4 exome

AF:

0.00298

AC:

4362

AN:

1461598

Hom.:

Cov.:

AF XY:

0.00304

AC XY:

2214

AN XY:

727106

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.00125

Gnomad4 ASJ exome

AF:

0.0110

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00218

Gnomad4 FIN exome

AF:

0.00577

Gnomad4 NFE exome

AF:

0.00299

Gnomad4 OTH exome

AF:

0.00286

GnomAD4 genome

AF:

0.00283

AC:

431

AN:

152362

Hom.:

Cov.:

AF XY:

0.00283

AC XY:

211

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.000409

Gnomad4 AMR

AF:

0.00294

Gnomad4 ASJ

AF:

0.00951

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00103

Gnomad4 FIN

AF:

0.00621

Gnomad4 NFE

AF:

0.00388

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00433

Hom.:

Bravo

AF:

0.00279

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00409

EpiControl

AF:

0.00320

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ABHD14A-ACY1: BP4, BP7; ACY1: BP4, BP7 -

ACY1-related disorder

Benign:1

Dec 01, 2023

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

5.8

DANN

Benign

0.86

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over