Is SP7 p.Arg34Gln (c.101G>A) pathogenic?

SP7 p.Arg34Gln (c.101G>A) is classified Uncertain significance in SP7 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-20). AlphaMissense: likely benign (0.1547); Ultra-rare (popmax 0.0167%, amr).

How common is SP7 p.Arg34Gln (c.101G>A) in the general population?

SP7 p.Arg34Gln (c.101G>A) is ultra-rare (popmax 0.0167%, amr) (gnomAD).

What do computational predictors say about SP7 p.Arg34Gln (c.101G>A)?

AlphaMissense predicts likely benign (score 0.1547) — an in-silico prediction, not a clinical call.

SP7 p.Arg34Gln

c.101G>A · VCV4172398

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1547 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0167%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1547	likely benign
REVEL	0.125	moderately benign-leaning
SaProt	LLR -5.75	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 6.1	GERP 1.8, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 7,497 bp · p 0.16 · regional, not allelic
Overall
CADD	23.3	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

Grpmax group 0.0167% Admixed American · 10/59,988 alleles

Filtering AF 0.009% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00681%

Overall 0.00335% 54/1,613,848 alleles · ultra-rare exomes 44/1,461,702 · genomes 10/152,146 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0167%	5,999
Middle Eastern	0.0164%	6,084
European (non-Finnish)	0.00331%	30,254
Remaining individualsnot grpmax-eligible	0.0032%	31,234
Finnishnot grpmax-eligible	0.00156%	64,006
African / African-American	0.00134%	74,904

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: SP7
Protein: p.Arg34Gln
Coding: c.101G>A
MANE Select: NM_001173467
Type: single nucleotide variant
Location: chr12:53329341 (GRCh38)
Gene constraint: LOEUF 0.808 · pLI 0.03 (gnomAD)
Structure: AlphaFold pLDDT 52.78
Residue 34: the 'disordered' region

Full SP7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

SP7 p.Arg34Trp Uncertain significance ★ ⚠ same residue
SP7 p.Ala2Val Uncertain significance ★★ ⚠ same type
SP7 p.Arg267Cys Uncertain significance ★★ ⚠ same type
SP7 p.Arg280Leu Uncertain significance ★★ ⚠ same type
SP7 p.Arg280Trp Uncertain significance ★★ ⚠ same type
SP7 p.Arg316His Uncertain significance ★★ ⚠ same type
SP7 p.Arg350Trp Uncertain significance ★★ ⚠ same type
SP7 p.Arg362His Uncertain significance ★★ ⚠ same type

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/sp7-p-arg34gln (accessed [today's date]).

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