rs199422261

Variant names:

• chr3-169765024-T-A
• rs199422261
• ENST00000602385.3:n.37A>T

Your query was ambiguous. Multiple possible variants found:

• chr3-169765024-T-A
• chr3-169765024-T-C
• chr3-169765024-T-G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BS2_Supporting

The NR_001566.3(TERC):​n.37A>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000784 in 765,108 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 Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000082 (0 hom.)
• Consequence: TERC NR_001566.3 non_coding_transcript_exon
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.963
• Publications: 4 publications found

Genes affected

TERC (HGNC:11727): (telomerase RNA component) Telomerase is a ribonucleoprotein polymerase that maintains telomere ends by addition of the telomere repeat TTAGGG. The enzyme consists of a protein component with reverse transcriptase activity, and an RNA component, encoded by this gene, that serves as a template for the telomere repeat. Telomerase expression plays a role in cellular senescence, as it is normally repressed in postnatal somatic cells resulting in progressive shortening of telomeres. Deregulation of telomerase expression in somatic cells may be involved in oncogenesis. Studies in mouse suggest that telomerase also participates in chromosomal repair, since de novo synthesis of telomere repeats may occur at double-stranded breaks. Mutations in this gene cause autosomal dominant dyskeratosis congenita, and may also be associated with some cases of aplastic anemia. [provided by RefSeq, Jul 2008]

TERC Gene-Disease associations (from GenCC):

• dyskeratosis congenita, autosomal dominant 1

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• acute myeloid leukemia

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

ENSG00000296372 (HGNC:):

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.53).
• BS2: High AC in GnomAdExome4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NR_001566.3. 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
	TERC	NR_001566.3	MANE Select	n.37A>T		non_coding_transcript_exon	Exon 1 of 1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TERC	ENST00000602385.3	TSL:6 MANE Select	n.37A>T		non_coding_transcript_exon	Exon 1 of 1
	ENSG00000296372	ENST00000738610.1		n.639T>A		non_coding_transcript_exon	Exon 1 of 1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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: 0.0000130 AC: 3 AN: 230886 AF XY: 0.0000157

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: 0.0000279

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000816 AC: 5 AN: 612932 Hom.: 0 Cov.: 0 AF XY: 0.00000896 AC XY: 3 AN XY: 334996

African (AFR) AF: 0.00 AC: 0 AN: 17678

American (AMR) AF: 0.00 AC: 0 AN: 43732

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 20978

East Asian (EAS) AF: 0.00 AC: 0 AN: 36062

South Asian (SAS) AF: 0.00 AC: 0 AN: 69792

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 37752

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4124

European-Non Finnish (NFE) AF: 0.0000143 AC: 5 AN: 349846

Other (OTH) AF: 0.00 AC: 0 AN: 32968

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74350

African (AFR) AF: 0.00 AC: 0 AN: 41456

American (AMR) AF: 0.0000654 AC: 1 AN: 15286

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Dyskeratosis congenita, autosomal dominant 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.53
CADD	Benign	0.85
DANN	Benign	0.69
PhyloP100		-0.96
RBP_binding_hub_radar		1.0
RBP_regulation_power_radar		2.4

Splicing

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

Other links and lift over

dbSNP: rs199422261; hg19: chr3-169482812;