1-39883465-T-C

Variant names:

• chr1-39883465-T-C
• rs199592345
• NM_017646.6:c.27A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_017646.6(TRIT1):​c.27A>G​(p.Ala9Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000438 in 1,597,588 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 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000042 (0 hom.)
• Consequence: TRIT1 NM_017646.6 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -3.31
• Publications: 0 publications found

Genes affected

TRIT1 (HGNC:20286): (tRNA isopentenyltransferase 1) This gene encodes a protein that that is targeted to the mitochondrion and modifies transfer RNAs (tRNAs) by adding a dimethylallyl group onto the adenine at position 37. This modification is important for maintaining the correct reading frame during protein translation. This gene is considered a tumor suppressor and its expression can decrease cell growth. Alternative splicing results in multiple transcripts variants, most of which are likely non-functional. [provided by RefSeq, Aug 2015]

MYCL-AS1 (HGNC:40386): (MYCL antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).
• BP6: Variant 1-39883465-T-C is Benign according to our data. Variant chr1-39883465-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 2960528.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-3.31 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017646.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRIT1	NM_017646.6	MANE Select	c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 11	NP_060116.2
	TRIT1	NM_001312691.1		c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 10	NP_001299620.1	Q9H3H1-4
	TRIT1	NM_001312692.1		c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 9	NP_001299621.1	Q9H3H1-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRIT1	ENST00000316891.10	TSL:1 MANE Select	c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 11	ENSP00000321810.5	Q9H3H1-1
	TRIT1	ENST00000372818.5	TSL:1	c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 10	ENSP00000361905.1	Q9H3H1-4
	TRIT1	ENST00000441669.6	TSL:1	c.27A>G	p.Ala9Ala	synonymous	Exon 1 of 9	ENSP00000388333.2	Q9H3H1-5

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152196 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000123 AC: 3 AN: 243996 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000294

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000112

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000415 AC: 6 AN: 1445274 Hom.: 0 Cov.: 32 AF XY: 0.00000140 AC XY: 1 AN XY: 715308

African (AFR) AF: 0.00 AC: 0 AN: 33102

American (AMR) AF: 0.0000451 AC: 2 AN: 44306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25958

East Asian (EAS) AF: 0.0000256 AC: 1 AN: 39112

South Asian (SAS) AF: 0.0000233 AC: 2 AN: 85940

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52882

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5554

European-Non Finnish (NFE) AF: 9.10e-7 AC: 1 AN: 1098986

Other (OTH) AF: 0.00 AC: 0 AN: 59434

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152314 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74470

African (AFR) AF: 0.00 AC: 0 AN: 41586

American (AMR) AF: 0.0000655 AC: 1 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2108

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	1.0
DANN	Benign	0.72
PhyloP100		-3.3
PromoterAI		-0.086	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=99/1	polymorphism

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

Other links and lift over

dbSNP: rs199592345; hg19: chr1-40349137;