Is RANGRF p.Asn149= (c.447C>T) pathogenic?

RANGRF p.Asn149= (c.447C>T) is classified Likely benign in RANGRF (ClinVar, Single submitter, 1 submitter; last evaluated 2023-10-03). Absent from gnomAD v4.1; Associated with cardiac rhythm disease.

What condition is associated with RANGRF p.Asn149= (c.447C>T)?

RANGRF p.Asn149= (c.447C>T) is associated with cardiac rhythm disease (ClinVar).

How common is RANGRF p.Asn149= (c.447C>T) in the general population?

RANGRF p.Asn149= (c.447C>T) is absent from gnomAD v4.1 (gnomAD).

RANGRF p.Asn149=

c.447C>T · rs2151611212 · VCV1151347

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

cardiac rhythm disease

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP -0.089	GERP -5.1, phastCons 0.69
Overall
CADD	4.324	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: RANGRF
Protein: p.Asn149=
Coding: c.447C>T
MANE Select: NM_016492
dbSNP: rs2151611212
Type: single nucleotide variant
Location: chr17:8289822 (GRCh38)
Gene constraint: LOEUF 1.107 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 78.36 · 1 PDB
Residue 149: a UniProt-annotated variant site (found in patients with cardiac arrhythmias including brugada syndrome; uncertain significance; loss of function in enhancing the expression of scn5a at the cell membrane)

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

Disease context

cardiac rhythm disease — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

RANGRF c.77+5G>A Uncertain significance ★★ same condition
RANGRF p.Ala56Val Uncertain significance ★★ ⚠ same condition
RANGRF p.Arg130Lys Uncertain significance ★★ ⚠ same condition
RANGRF p.Asp179Asn Uncertain significance ★★ ⚠ same condition
RANGRF p.His81Arg Uncertain significance ★★ ⚠ same condition
RANGRF p.Pro162Ser Uncertain significance ★★ ⚠ same condition
RANGRF p.Ser84Ala Uncertain significance ★★ ⚠ same condition
RANGRF p.Val122Met Uncertain significance ★★ ⚠ 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/rangrf-p-asn149 (accessed [today's date]).

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