20-63697020-C-T

Variant names:

• chr20-63697020-C-T
• rs759110165
• NM_003823.4:c.253C>T
• TNFRSF6B p.Leu85Leu

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP6_Moderate BP7

The NM_003823.4(TNFRSF6B):​c.253C>T​(p.Leu85Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,456,652 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. L85L) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: TNFRSF6B NM_003823.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.01
• Publications: 0 publications found

Genes affected

TNFRSF6B (HGNC:11921): (TNF receptor superfamily member 6b) This gene belongs to the tumor necrosis factor receptor superfamily. The encoded protein is postulated to play a regulatory role in suppressing FasL- and LIGHT-mediated cell death. It acts as a decoy receptor that competes with death receptors for ligand binding. Over-expression of this gene has been noted in gastrointestinal tract tumors. Read-through transcription into this gene from the neighboring upstream gene, which encodes regulator of telomere elongation helicase 1 (RTEL1), generates a non-coding transcript. [provided by RefSeq, Feb 2011]

RTEL1-TNFRSF6B (HGNC:44095): (RTEL1-TNFRSF6B readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring RTEL1 (regulator of telomere elongation helicase 1) and TNFRSF6B (tumor necrosis factor receptor superfamily, member 6b, decoy) genes on chromosome 20. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 20-63697020-C-T is Benign according to our data. Variant chr20-63697020-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3010040.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.01 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003823.4. 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
	TNFRSF6B	NM_003823.4	MANE Select	c.253C>T	p.Leu85Leu	synonymous	Exon 1 of 3	NP_003814.1	O95407
	RTEL1-TNFRSF6B	NR_037882.1		n.4987C>T		non_coding_transcript_exon	Exon 36 of 38

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TNFRSF6B	ENST00000369996.3	TSL:1 MANE Select	c.253C>T	p.Leu85Leu	synonymous	Exon 1 of 3	ENSP00000359013.1	O95407
	RTEL1-TNFRSF6B	ENST00000492259.6	TSL:5	n.*1592C>T		non_coding_transcript_exon	Exon 33 of 35	ENSP00000457428.1	D6RA96
	RTEL1-TNFRSF6B	ENST00000492259.6	TSL:5	n.*1592C>T		3_prime_UTR	Exon 33 of 35	ENSP00000457428.1	D6RA96

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00000844 AC: 2 AN: 236894 AF XY: 0.00000770

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000562

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000946

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000343 AC: 5 AN: 1456652 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 724878

African (AFR) AF: 0.0000598 AC: 2 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44668

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26102

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39686

South Asian (SAS) AF: 0.00 AC: 0 AN: 86190

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48888

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111624

Other (OTH) AF: 0.0000166 AC: 1 AN: 60258

GnomAD4 genome Cov.: 34

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

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	Uncertain	0.12
CADD	Benign	13
DANN	Uncertain	1.0
PhyloP100		1.0
PromoterAI		0.010	Neutral

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs759110165;

hg19: chr20-62328373;