rs199422308

Positions:

• chr5-1253545-AGGCCTCAGCCGGACACTCAGCCTTCAGCCGGACATGCAGGCCTCGGCCAAACACTCACTCAGGCCTCAGACTCCCAGCGGTGCGGGCCTGGGTGTGGGCCGCCCCTCCCTCCCTGGGACGTAGAGCCCGGCGTGACAGGGCTGCTGGTGTCTGCTCTCGGCCTGGCTGTGGGCGGGT-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP5

The NM_198253.3(TERT):​c.*6_*182del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TERT NM_198253.3 3_prime_UTR
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 0.648

Genes affected

TERT (HGNC:11730): (telomerase reverse transcriptase) 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, encoded by this gene, and an RNA component which 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. Alternatively spliced variants encoding different isoforms of telomerase reverse transcriptase have been identified; the full-length sequence of some variants has not been determined. Alternative splicing at this locus is thought to be one mechanism of regulation of telomerase activity. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 5-1253545-AGGCCTCAGCCGGACACTCAGCCTTCAGCCGGACATGCAGGCCTCGGCCAAACACTCACTCAGGCCTCAGACTCCCAGCGGTGCGGGCCTGGGTGTGGGCCGCCCCTCCCTCCCTGGGACGTAGAGCCCGGCGTGACAGGGCTGCTGGTGTCTGCTCTCGGCCTGGCTGTGGGCGGGT-A is Pathogenic according to our data. Variant chr5-1253545-AGGCCTCAGCCGGACACTCAGCCTTCAGCCGGACATGCAGGCCTCGGCCAAACACTCACTCAGGCCTCAGACTCCCAGCGGTGCGGGCCTGGGTGTGGGCCGCCCCTCCCTCCCTGGGACGTAGAGCCCGGCGTGACAGGGCTGCTGGTGTCTGCTCTCGGCCTGGCTGTGGGCGGGT-A is described in ClinVar as [Pathogenic]. Clinvar id is 39123.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TERT	NM_198253.3	c.*6_*182del		3_prime_UTR_variant	16/16	ENST00000310581.10	NP_937983.2
TERT	NM_001193376.3	c.*6_*182del		3_prime_UTR_variant	15/15		NP_001180305.1
TERT	NR_149162.3	n.3113_3289del		non_coding_transcript_exon_variant	13/13
TERT	NR_149163.3	n.3077_3253del		non_coding_transcript_exon_variant	13/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TERT	ENST00000310581.10	c.*6_*182del		3_prime_UTR_variant	16/16	1	NM_198253.3	ENSP00000309572	P2
	ENST00000666708.1	n.289-1124_289-948del		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Interstitial lung disease 2 Pathogenic:1

Pathogenic, no assertion criteria provided

curation

GeneReviews

May 10, 2012

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Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs199422308; hg19: chr5-1253660;