Is CDC73 p.Tyr293= (c.879C>T) pathogenic?

CDC73 p.Tyr293= (c.879C>T) is classified Likely benign in CDC73 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2026-01-26). Very rare (popmax 0.00755%, nfe); Associated with parathyroid gland carcinoma.

What condition is associated with CDC73 p.Tyr293= (c.879C>T)?

CDC73 p.Tyr293= (c.879C>T) is associated with parathyroid gland carcinoma, hereditary neoplastic syndrome (ClinVar).

How common is CDC73 p.Tyr293= (c.879C>T) in the general population?

CDC73 p.Tyr293= (c.879C>T) is very rare (popmax 0.00755%, nfe) (gnomAD).

How is Parathyroid carcinoma inherited?

Typically Not applicable (Orphanet). A genetic counselor can assess individual risk for a family.

CDC73 p.Tyr293=

c.879C>T · rs199551585 · VCV531664

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00755%, nfe)

Conditions

parathyroid gland carcinoma

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 -5.9	GERP -1
Overall
CADD	5.742	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00755% European (non-Finnish) · 89/1,178,714 alleles

Filtering AF 0.00624% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00579%

Overall 0.00589% 95/1,612,644 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00755%	13,244
Admixed American	0.005%	19,999
East Asian	0.00223%	44,876
Remaining individualsnot grpmax-eligible	0.0016%	62,430
South Asian	0.0011%	91,060

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.Tyr293=
Coding: c.879C>T
MANE Select: NM_024529
dbSNP: rs199551585
Type: single nucleotide variant
Location: chr1:193150354 (GRCh38)
Gene constraint: LOEUF 0.42 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 73.94 · 21 PDB
Residue 293: the 'interaction with polr2a and paf1' region

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

Disease context

parathyroid gland carcinoma — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary neoplastic syndrome

For Parathyroid carcinoma (Orphanet):

Inheritance: Not applicable
Onset: Adult
Prevalence: <1 / 1 000 000 (Europe)

Similar variants

CDC73 p.Tyr293fs Pathogenic ★ same residue
CDC73 p.Tyr293Ter Pathogenic ★ 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-tyr293 (accessed [today's date]).

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