rs376280288

Variant names:

• chr16-70258182-C-T
• rs376280288
• NM_001605.3:c.2028G>A

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_Strong BP6_Very_Strong BP7

The NM_001605.3(AARS1):​c.2028G>A​(p.Ala676Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000405 in 1,604,836 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000039 (0 hom.)
• Consequence: AARS1 NM_001605.3 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.677
• Publications: 0 publications found

Genes affected

AARS1 (HGNC:20): (alanyl-tRNA synthetase 1) The human alanyl-tRNA synthetase (AARS) belongs to a family of tRNA synthases, of the class II enzymes. Class II tRNA synthases evolved early in evolution and are highly conserved. This is reflected by the fact that 498 of the 968-residue polypeptide human AARS shares 41% identity witht the E.coli protein. tRNA synthases are the enzymes that interpret the RNA code and attach specific aminoacids to the tRNAs that contain the cognate trinucleotide anticodons. They consist of a catalytic domain which interacts with the amino acid acceptor-T psi C helix of the tRNA, and a second domain which interacts with the rest of the tRNA structure. [provided by RefSeq, Jul 2008]

AARS1 Gene-Disease associations (from GenCC):

• Charcot-Marie-Tooth disease axonal type 2N

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
• undetermined early-onset epileptic encephalopathy

  Inheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Illumina, Orphanet
• developmental and epileptic encephalopathy, 29

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• trichothiodystrophy 8, nonphotosensitive

  Inheritance: AR, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.65).
• BP6: Variant 16-70258182-C-T is Benign according to our data. Variant chr16-70258182-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 476737.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.677 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001605.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AARS1	NM_001605.3	MANE Select	c.2028G>A	p.Ala676Ala	synonymous	Exon 15 of 21	NP_001596.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AARS1	ENST00000261772.13	TSL:1 MANE Select	c.2028G>A	p.Ala676Ala	synonymous	Exon 15 of 21	ENSP00000261772.8
	AARS1	ENST00000565361.3	TSL:5	c.2028G>A	p.Ala676Ala	synonymous	Exon 15 of 22	ENSP00000455360.3
	AARS1	ENST00000675853.1		c.2028G>A	p.Ala676Ala	synonymous	Exon 15 of 21	ENSP00000502367.1

Frequencies

GnomAD3 genomes AF: 0.0000592 AC: 9 AN: 152132 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.0000944

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000129 AC: 3 AN: 232496 AF XY: 0.00000795

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000575

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000193

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000385 AC: 56 AN: 1452704 Hom.: 0 Cov.: 32 AF XY: 0.0000429 AC XY: 31 AN XY: 721888

African (AFR) AF: 0.00 AC: 0 AN: 33198

American (AMR) AF: 0.00 AC: 0 AN: 43514

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25884

East Asian (EAS) AF: 0.00 AC: 0 AN: 39302

South Asian (SAS) AF: 0.00 AC: 0 AN: 84984

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52826

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5650

European-Non Finnish (NFE) AF: 0.0000497 AC: 55 AN: 1107354

Other (OTH) AF: 0.0000167 AC: 1 AN: 59992

GnomAD4 genome AF: 0.0000592 AC: 9 AN: 152132 Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4 AN XY: 74302

African (AFR) AF: 0.00 AC: 0 AN: 41422

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4828

European-Finnish (FIN) AF: 0.0000944 AC: 1 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.000150 Hom.: 0

Bravo AF: 0.0000378

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	1	Charcot-Marie-Tooth disease type 2 (1)
-	-	1	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.65
CADD	Benign	0.55
DANN	Benign	0.74
PhyloP100		-0.68
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs376280288; hg19: chr16-70292085;