Is RTEL1 p.Ala387= (c.1161C>T) pathogenic?

RTEL1 p.Ala387= (c.1161C>T) is classified Likely benign in RTEL1 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2026-01-12). Ultra-rare (popmax 0.0173%, afr); Associated with Inborn genetic diseases.

How common is RTEL1 p.Ala387= (c.1161C>T) in the general population?

RTEL1 p.Ala387= (c.1161C>T) is ultra-rare (popmax 0.0173%, afr) (gnomAD).

RTEL1 p.Ala387=

Q: What condition is associated with RTEL1 p.Ala387= (c.1161C>T)?

RTEL1 p.Ala387= (c.1161C>T) is associated with Inborn genetic diseases, dyskeratosis congenita, autosomal recessive 5, pulmonary fibrosis and/or bone marrow failure, Telomere-related, 3 (ClinVar).

c.1161C>T · rs141241780 · VCV796007

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0173%, afr)

Conditions

Inborn genetic diseases

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -8.1	GERP -3.2
Overall
CADD	0.749	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0173% African / African-American · 13/74,940 alleles

Filtering AF 0.0102% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00813%

Overall 0.00372% 60/1,613,224 alleles · ultra-rare exomes 48/1,461,018 · genomes 12/152,206 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0173%	5,765
Remaining individualsnot grpmax-eligible	0.008%	12,494
South Asian	0.00659%	15,182
East Asian	0.00446%	22,442
European (non-Finnish)	0.00271%	36,875
Admixed American	0.00167%	59,998
Finnishnot grpmax-eligible	0.00158%	63,266

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: RTEL1
Protein: p.Ala387=
Coding: c.1161C>T
MANE Select: NM_001283009
dbSNP: rs141241780
Type: single nucleotide variant
Location: chr20:63680689 (GRCh38)
Gene constraint: LOEUF 0.661 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.64 · 3 PDB

Full RTEL1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: dyskeratosis congenita, autosomal recessive 5 pulmonary fibrosis and/or bone marrow failure, Telomere-related, 3 dyskeratosis congenita

Similar variants

RTEL1 p.Ala387Thr Uncertain significance ★★ ⚠ same residue
RTEL1 c.1037+1G>T Likely pathogenic ★★ same condition
RTEL1 c.1192-2A>G Likely pathogenic ★★ same condition
RTEL1 c.1596-1G>A Likely pathogenic ★★ same condition
RTEL1 c.2142-1G>C Likely pathogenic ★★ same condition
RTEL1 c.2265+1G>T Likely pathogenic ★★ same condition
RTEL1 c.2413+1G>A Likely pathogenic ★★ same condition
RTEL1 c.2413+1G>C Pathogenic/Likely pathogenic ★★ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/rtel1-p-ala387 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown