Is CDC73 p.Arg234Gln (c.701G>A) pathogenic?

CDC73 p.Arg234Gln (c.701G>A) is classified Uncertain significance in CDC73 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-05-25). AlphaMissense: likely pathogenic (0.9908); Very rare (popmax 0.00446%, eas); Associated with hereditary neoplastic syndrome.

What condition is associated with CDC73 p.Arg234Gln (c.701G>A)?

CDC73 p.Arg234Gln (c.701G>A) is associated with hereditary neoplastic syndrome, hyperparathyroidism 1, hyperparathyroidism 2 with jaw tumors (ClinVar).

How common is CDC73 p.Arg234Gln (c.701G>A) in the general population?

CDC73 p.Arg234Gln (c.701G>A) is very rare (popmax 0.00446%, eas) (gnomAD).

What do computational predictors say about CDC73 p.Arg234Gln (c.701G>A)?

AlphaMissense predicts likely pathogenic (score 0.9908) — an in-silico prediction, not a clinical call.

CDC73 p.Arg234Gln

c.701G>A · rs1452051467 · VCV2562072

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely pathogenic

0.9908 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00446%, eas)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
AlphaMissense	0.9908	likely pathogenic
REVEL	0.62	indeterminate
SaProt	LLR -9.79	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 1.9, phastCons 1
Regional constraint	o/e 0.57	unconstrained · MANE · 109 kb · p 8.5e-19 · regional, not allelic
Overall
CADD	31.0	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00446% East Asian · 2/44,864 alleles

Filtering AF 0.000739% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000276%

Overall 0.000248% 4/1,613,320 alleles · very rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00446%	22,432
African / African-American	0.00134%	74,834
European (non-Finnish)	8.48e-05%	1,179,592

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: CDC73
Protein: p.Arg234Gln
Coding: c.701G>A
MANE Select: NM_024529
dbSNP: rs1452051467
Type: single nucleotide variant
Location: chr1:193142038 (GRCh38)
Gene constraint: LOEUF 0.42 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 73.94 · 21 PDB
Residue 234: the 'interaction with polr2a and paf1' region; the 'interaction with ctnnb1' region

Full CDC73 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary neoplastic syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hyperparathyroidism 1 hyperparathyroidism 2 with jaw tumors parathyroid gland carcinoma

Similar variants

CDC73 p.Arg234Ter Pathogenic ★★ same residue
CDC73 p.Arg234= Likely benign ★ same residue
CDC73 c.1030+2T>C Likely pathogenic ★★ same condition
CDC73 c.131+1G>A Pathogenic/Likely pathogenic ★★ same condition
CDC73 c.237+1G>A Pathogenic ★★ same condition
CDC73 c.423+1G>A Pathogenic ★★ same condition
CDC73 c.513-1G>A Likely pathogenic ★★ same condition
CDC73 p.Arg120Ter 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/cdc73-p-arg234gln (accessed [today's date]).

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