PDLIM4

Chr 5AD

PDZ and LIM domain 4

Also known as: RIL

Enables alpha-actinin binding activity; protein homodimerization activity; and protein phosphatase binding activity. Involved in actin cytoskeleton organization. Located in several cellular components, including lamellipodium; perinuclear region of cytoplasm; and stress fiber. Part of filamentous actin. Implicated in osteoporosis. [provided by Alliance of Genome Resources, Jul 2025]

Primary Disease Associations & Inheritance

{Osteoporosis, susceptibility to}MIM #166710
AD
59
ClinVar variants
16
Pathogenic / LP
0.98
pLI score· haploinsufficient
0
Active trials
Clinical SummaryPDLIM4
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.98). One damaged copy is likely sufficient to cause disease.
📋
ClinVar Variants
16 Pathogenic / Likely Pathogenic· 37 VUS of 59 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.24LOEUF
pLI 0.983
Z-score 3.26
OE 0.00 (0.000.24)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
0.71Z-score
OE missense 0.86 (0.770.97)
186 obs / 215.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.00 (0.000.24)
00.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.86 (0.770.97)
00.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.0.93
01.21.6
LoF obs/exp: 0 / 12.4Missense obs/exp: 186 / 215.5Syn Z: 0.53

ClinVar Variant Classifications

59 submitted variants in ClinVar

Classification Summary

Pathogenic15
Likely Pathogenic1
VUS37
Likely Benign6
15
Pathogenic
1
Likely Pathogenic
37
VUS
6
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
15
0
15
Likely Pathogenic
0
0
1
0
1
VUS
0
33
4
0
37
Likely Benign
0
4
2
0
6
Benign
0
0
0
0
0
Total03722059

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

PDLIM4 · protein map & ClinVar variants

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

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

{Osteoporosis, susceptibility to}

MIM #166710

Molecular basis of disorder known

Autosomal dominant
Clinical Literature
Landmark / reviewRecent case evidence

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →