17-54937166-C-A

Variant names:

• chr17-54937166-C-A
• rs147858585
• NM_005486.3:c.973C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_005486.3(TOM1L1):​c.973C>A​(p.Arg325Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: TOM1L1 NM_005486.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.212
• Publications: 1 publications found

Genes affected

TOM1L1 (HGNC:11983): (target of myb1 like 1 membrane trafficking protein) Enables clathrin binding activity and protein kinase binding activity. Involved in negative regulation of mitotic nuclear division; positive regulation of protein phosphorylation; and signal transduction. Located in cytosol and endosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP7: Synonymous conserved (PhyloP=0.212 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005486.3. 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
	TOM1L1	NM_005486.3	MANE Select	c.973C>A	p.Arg325Arg	synonymous	Exon 10 of 16	NP_005477.2	O75674-1
	TOM1L1	NM_001321174.2		c.742C>A	p.Arg248Arg	synonymous	Exon 8 of 14	NP_001308103.1	O75674-3
	TOM1L1	NM_001321175.2		c.742C>A	p.Arg248Arg	synonymous	Exon 11 of 17	NP_001308104.1	O75674-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TOM1L1	ENST00000575882.6	TSL:1 MANE Select	c.973C>A	p.Arg325Arg	synonymous	Exon 10 of 16	ENSP00000460823.1	O75674-1
	TOM1L1	ENST00000575333.5	TSL:1	c.973C>A	p.Arg325Arg	synonymous	Exon 10 of 10	ENSP00000458918.1	O75674-2
	TOM1L1	ENST00000576932.5	TSL:1	n.742C>A		non_coding_transcript_exon	Exon 8 of 11	ENSP00000461876.1	I3NI44

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251232 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461792 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727208

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53354

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111984

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	4.9
DANN	Benign	0.56
PhyloP100		0.21
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

Other links and lift over

dbSNP: rs147858585; hg19: chr17-53014527;