LIFR

Chr 5

LIF receptor subunit alpha

Also known as: CD118, LIF-R, SJS2, STWS, SWS

This protein functions as a signal-transducing cytokine receptor that combines with gp130 to mediate leukemia inhibitory factor signaling, which regulates cellular differentiation, proliferation and survival during development. Biallelic mutations cause Stuve-Wiedemann syndrome (also called Schwartz-Jampel type 2 syndrome), an autosomal recessive bent-bone dysplasia with skeletal abnormalities and other developmental features. The gene is highly intolerant to loss-of-function variants in the population (pLI near 1.0), consistent with its essential developmental role.

ResearchSummary from RefSeq, OMIM, UniProt
LOFmechanismLOEUF 0.71
Clinical SummaryLIFR
🧬
Gene-Disease Validity (ClinGen)
obsolete Stüve-Wiedemann syndrome · ARDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.71LOEUF
pLI 0.000
Z-score 3.40
OE 0.52 (0.390.71)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.24Z-score
OE missense 0.97 (0.911.04)
563 obs / 579.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.52 (0.390.71)
00.351.4
Missense OE0.97 (0.911.04)
00.61.4
Synonymous OE1.02
01.21.6
LoF obs/exp: 31 / 59.3Missense obs/exp: 563 / 579.3Syn Z: -0.21
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitiveLIFR-related Stuve-Wiedeman syndromeLOFAR

Predictions shown for reference only — model trained on dominant genes, not applicable to AR conditions.

DN
0.7228th %ile
GOF
0.77top 25%
LOF
0.2582th %ile

The Badonyi & Marsh prediction model was trained exclusively on dominant disease genes. Predictions are not reliable for genes with autosomal recessive inheritance and are shown at reduced opacity for reference only.

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

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

LIFR · 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.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →