Is SIX5 p.Pro70Arg (c.209C>G) pathogenic?

SIX5 p.Pro70Arg (c.209C>G) is classified Uncertain significance in SIX5 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-07-20). AlphaMissense: likely benign (0.1222); Absent from gnomAD v4.1.

How common is SIX5 p.Pro70Arg (c.209C>G) in the general population?

SIX5 p.Pro70Arg (c.209C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about SIX5 p.Pro70Arg (c.209C>G)?

AlphaMissense predicts likely benign (score 0.1222) — an in-silico prediction, not a clinical call.

SIX5 p.Pro70Arg

c.209C>G · rs2146209599 · VCV2302707

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1222 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1222	likely benign
REVEL	0.177	moderately benign-leaning
SaProt	LLR -8.62	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not looked up on this page · why
Constraint at this position
Conservation	phyloP 6.8	GERP 0.81, phastCons 1
Regional constraint	o/e 0.92	unconstrained · MANE · 707 bp · p 0.12 · regional, not allelic
Overall
CADD	21.5	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

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: SIX5
Protein: p.Pro70Arg
Coding: c.209C>G
dbSNP: rs2146209599
Type: single nucleotide variant
Location: chr19:45768636 (GRCh38)

Full SIX5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/six5-p-pro70arg (accessed [today's date]).

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