Is CTRC p.Trp160Ter (c.480G>A) pathogenic?

CTRC p.Trp160Ter (c.480G>A) is classified Conflicting classifications of pathogenicity in CTRC (ClinVar, Conflicting submitters, 2 submitters; last evaluated 2023-08-30). Very rare (popmax 8.47e-05%, nfe); Associated with hereditary chronic pancreatitis.

What condition is associated with CTRC p.Trp160Ter (c.480G>A)?

CTRC p.Trp160Ter (c.480G>A) is associated with hereditary chronic pancreatitis (ClinVar).

How common is CTRC p.Trp160Ter (c.480G>A) in the general population?

CTRC p.Trp160Ter (c.480G>A) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

CTRC p.Trp160Ter

Q: How is Autosomal dominant hereditary chronic pancreatitis inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

c.480G>A · rs2526297442 · VCV2882527

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 2 submitters

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Conditions

hereditary chronic pancreatitis

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function
NMD	predicted	premature termination codon in exon 5 of 8
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.5, phastCons 1
Overall
CADD	43.0	PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.47e-05% European (non-Finnish) · 1/1,180,042 alleles

Overall 0.000137% 2/1,461,848 alleles · very rare

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0016%	62,512
European (non-Finnish)grpmax	8.47e-05%	1,180,043

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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: CTRC
Protein: p.Trp160Ter
Coding: c.480G>A
MANE Select: NM_007272
dbSNP: rs2526297442
Type: single nucleotide variant
Location: chr1:15443542 (GRCh38)
Gene constraint: LOEUF 1.147 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.03 · 1 PDB
Residue 160: a disulfide bond; the peptidase s1 domain; a β-strand

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

Disease context

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

For Autosomal dominant hereditary chronic pancreatitis (Orphanet):

Inheritance: Autosomal dominant
Onset: Adolescent, Childhood
Prevalence: 1-9 / 1 000 000 (France)

Similar variants

CTRC c.494-1G>C Pathogenic/Likely pathogenic ★★ same condition
CTRC p.Arg29Ter Pathogenic/Likely pathogenic ★★ same condition
CTRC p.Gln174Ter Pathogenic/Likely pathogenic ★★ same condition
CTRC c.356+1G>A Uncertain significance ★★ same condition
CTRC c.40+4A>G Uncertain significance ★★ same condition
CTRC c.40+6C>T Uncertain significance ★★ same condition
CTRC p.Ala12Val Uncertain significance ★★ ⚠ same condition
CTRC p.Ala184Val 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/ctrc-p-trp160ter (accessed [today's date]).

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