20-63696783-G-A

Variant names:

• chr20-63696783-G-A
• rs144447293
• NM_003823.4:c.16G>A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_003823.4(TNFRSF6B):​c.16G>A​(p.Gly6Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000237 in 1,595,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0014 (0 hom., cov: 34)
  • Exomes 𝑓: 0.00012 (0 hom.)
• Consequence: TNFRSF6B NM_003823.4 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.23

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

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0039512217).
• BP6: Variant 20-63696783-G-A is Benign according to our data. Variant chr20-63696783-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1610322.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TNFRSF6B	NM_003823.4	c.16G>A	p.Gly6Arg	missense_variant	Exon 1 of 3	ENST00000369996.3	NP_003814.1
RTEL1-TNFRSF6B	NR_037882.1	n.4750G>A		non_coding_transcript_exon_variant	Exon 36 of 38

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TNFRSF6B	ENST00000369996.3	c.16G>A	p.Gly6Arg	missense_variant	Exon 1 of 3	1	NM_003823.4	ENSP00000359013.1
RTEL1-TNFRSF6B	ENST00000492259.6	n.*1355G>A		non_coding_transcript_exon_variant	Exon 33 of 35	5		ENSP00000457428.1
RTEL1-TNFRSF6B	ENST00000492259.6	n.*1355G>A		3_prime_UTR_variant	Exon 33 of 35	5		ENSP00000457428.1

Frequencies

GnomAD3 genomes AF: 0.00137 AC: 208 AN: 152256 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00487

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

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: 0.00143

GnomAD3 exomes AF: 0.000287 AC: 64 AN: 223108 Hom.: 0 AF XY: 0.000228 AC XY: 28 AN XY: 122644

Gnomad AFR exome AF: 0.00439

Gnomad AMR exome AF: 0.0000607

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000118 AC: 171 AN: 1443204 Hom.: 0 Cov.: 30 AF XY: 0.000101 AC XY: 72 AN XY: 715974

Gnomad4 AFR exome AF: 0.00437

Gnomad4 AMR exome AF: 0.000138

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000544

Gnomad4 OTH exome AF: 0.000235

GnomAD4 genome AF: 0.00136 AC: 207 AN: 152374 Hom.: 0 Cov.: 34 AF XY: 0.00144 AC XY: 107 AN XY: 74510

Gnomad4 AFR AF: 0.00483

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00142

Alfa AF: 0.000940 Hom.: 0

Bravo AF: 0.00140

ESP6500AA AF: 0.00440 AC: 19

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.000293 AC: 35

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.56	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	0.53
DANN	Benign	0.89
DEOGEN2	Benign	0.071	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.59	D
LIST_S2	Benign	0.50	T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.0040	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	1.1	L
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	0.51	N
REVEL	Benign	0.077
Sift	Benign	0.23	T
Sift4G	Pathogenic	0.0	D
Polyphen		0.0	B
Vest4		0.15
MutPred		0.45		Loss of catalytic residue at G6 (P = 0.0064);
MVP		0.39
MPC		0.014
ClinPred		0.0086	T
GERP RS		-0.55
Varity_R		0.045
gMVP		0.52

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs144447293; hg19: chr20-62328136;