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Target intelligence / Profile preview
LIM homeobox transcription factor 1-beta (LMX1B)
- Target
- LMX1B
- Molecular classification
- Transcription factor, LIM homeodomain protein
01
Overview
LIM homeobox transcription factor 1-beta (LMX1B) is a transcription factor belonging to the LIM homeodomain protein family, characterized by having two cysteine-rich LIM domains at its amino terminus (important for protein–protein interactions) and a DNA-binding homeodomain[2]. LMX1B plays a crucial role in embryonic dorso-ventral patterning of vertebrate limbs, kidney development (particularly podocyte differentiation and basement membrane formation), and the development of serotonergic neurons in the central nervous system[1][2]. Mutations or loss-of-function in LMX1B cause Nail-patella syndrome, a genetic disorder that affects the nails, knees, elbows, kidneys, and sometimes the eyes and nervous system[1][2]. LMX1B is essential for proper expression of several development-associated genes and for normal tissue patterning across multiple organ systems[2].
- Other names
- LIM homeobox transcription factor 1-betaLMX1BLMX-1.2LIM/homeobox protein 1.2LIM/homeobox protein LMX1BFSGS10LMX1.2NPS1
02
Mechanism of action
Not applicable (therapeutic drugs targeting LMX1B have not been described in the literature[1][2])
03
Biological functions
Embryonic development, especially dorso-ventral patterning of vertebrate limbsRegulation of gene expression via DNA bindingPodocyte differentiation and glomerular basement membrane morphogenesisDevelopment of serotonergic neurons in the central nervous system
04
Disease associations
Nail-patella syndrome (NPS)Renal (kidney) disease, focal segmental glomerulosclerosisImplicated in disorders affecting dorsal limb structures, anterior eye development, and nervous system abnormalities
05
Safety considerations
Genetic loss-of-function results in developmental abnormalities (Nail-patella syndrome), kidney dysfunction, and potential neurodevelopmental disorders[1][2]
06
Biomarkers
Mutations or loss-of-function in the LMX1B gene are biomarkers for Nail-patella syndrome and can be used for genetic diagnosis of this syndrome[1][2]
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