PCOLCE

Chr 7

procollagen C-endopeptidase enhancer

Also known as: PCPE, PCPE-1, PCPE1

Fibrillar collagen types I-III are synthesized as precursor molecules known as procollagens. These precursors contain amino- and carboxyl-terminal peptide extensions known as N- and C-propeptides, respectively, which are cleaved, upon secretion of procollagen from the cell, to yield the mature triple helical, highly structured fibrils. This gene encodes a glycoprotein which binds and drives the enzymatic cleavage of type I procollagen and heightens C-proteinase activity. [provided by RefSeq, Jul 2008]

0
Active trials
0
Pathogenic / LP
0
ClinVar variants
14
Pubs (1 yr)
0.2
Missense Z
0.86
LOEUF
Clinical SummaryPCOLCE
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.86LOEUF
pLI 0.000
Z-score 2.02
OE 0.51 (0.310.86)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.16Z-score
OE missense 0.97 (0.881.08)
256 obs / 263.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.51 (0.310.86)
00.351.4
Missense OE0.97 (0.881.08)
00.61.4
Synonymous OE1.12
01.21.6
LoF obs/exp: 10 / 19.6Missense obs/exp: 256 / 263.3Syn Z: -1.05
DNGOF
DN
0.74top 25%
GOF
0.6834th %ile
LOF
0.2775th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

PCOLCE · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
Landmark / reviewRecent case evidence