CREB3

Chr 9

cAMP responsive element binding protein 3

Also known as: LUMAN, LZIP, sLZIP

CREB3 encodes an endoplasmic reticulum-bound transcription factor that regulates the unfolded protein response, cell proliferation, and leukocyte migration by directly binding DNA and activating target gene transcription. Mutations cause autosomal recessive osteogenesis imperfecta with bone fragility and skeletal deformities. The gene shows minimal constraint against loss-of-function variants, consistent with its recessive inheritance pattern.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.01
Clinical SummaryCREB3
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
1.01LOEUF
pLI 0.000
Z-score 1.54
OE 0.60 (0.371.01)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.04Z-score
OE missense 0.99 (0.881.12)
194 obs / 195.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.60 (0.371.01)
00.351.4
Missense OE0.99 (0.881.12)
00.61.4
Synonymous OE1.04
01.21.6
LoF obs/exp: 10 / 16.8Missense obs/exp: 194 / 195.5Syn Z: -0.27
DN
0.6840th %ile
GOF
0.4480th %ile
LOF
0.3843th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction 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

Protein Context — Lollipop Plot

CREB3 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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