3-51984133-C-G

Variant summary

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

The NM_000666.3(ACY1):​c.69C>G​(p.Arg23Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00298 in 1,613,992 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0030 ( 29 hom. )

Consequence

ACY1
NM_000666.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.381
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]
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 3-51984133-C-G is Benign according to our data. Variant chr3-51984133-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 773443.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-51984133-C-G is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.381 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00286 (436/152368) while in subpopulation AMR AF= 0.00411 (63/15310). AF 95% confidence interval is 0.0033. There are 1 homozygotes in gnomad4. There are 214 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 29 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACY1NM_000666.3 linkc.69C>G p.Arg23Arg 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
ACY1ENST00000636358.2 linkc.69C>G p.Arg23Arg synonymous_variant Exon 2 of 15 1 NM_000666.3 ENSP00000490149.1 Q03154-1
ABHD14A-ACY1ENST00000463937.1 linkc.398-1074C>G intron_variant Intron 3 of 15 5 ENSP00000420487.1 C9JMV9

Frequencies

GnomAD3 genomes
AF:
0.00286
AC:
435
AN:
152250
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000940
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00405
Gnomad ASJ
AF:
0.0259
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00186
Gnomad FIN
AF:
0.00151
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00300
Gnomad OTH
AF:
0.00526
GnomAD3 exomes
AF:
0.00310
AC:
776
AN:
250386
Hom.:
4
AF XY:
0.00315
AC XY:
427
AN XY:
135480
show subpopulations
Gnomad AFR exome
AF:
0.000740
Gnomad AMR exome
AF:
0.00150
Gnomad ASJ exome
AF:
0.0256
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00140
Gnomad FIN exome
AF:
0.000976
Gnomad NFE exome
AF:
0.00319
Gnomad OTH exome
AF:
0.00507
GnomAD4 exome
AF:
0.00299
AC:
4376
AN:
1461624
Hom.:
29
Cov.:
31
AF XY:
0.00303
AC XY:
2204
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.000836
Gnomad4 AMR exome
AF:
0.00208
Gnomad4 ASJ exome
AF:
0.0266
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00160
Gnomad4 FIN exome
AF:
0.000790
Gnomad4 NFE exome
AF:
0.00265
Gnomad4 OTH exome
AF:
0.00543
GnomAD4 genome
AF:
0.00286
AC:
436
AN:
152368
Hom.:
1
Cov.:
32
AF XY:
0.00287
AC XY:
214
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.000937
Gnomad4 AMR
AF:
0.00411
Gnomad4 ASJ
AF:
0.0259
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00186
Gnomad4 FIN
AF:
0.00151
Gnomad4 NFE
AF:
0.00300
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00481
Hom.:
2
Bravo
AF:
0.00322
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00425
EpiControl
AF:
0.00356

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Jan 14, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

ACY1: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
CADD
Benign
9.5
DANN
Benign
0.95
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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.

Other links and lift over

dbSNP: rs34017492; hg19: chr3-52018149; API