BMPR1B Gene

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BMPR1B Gene

Gene Overview

<div class="infobox infobox-gene"> [@bmp2019]
<table> [@bmprb2018]
<tr><th colspan="2" style="background:#e8f4ea;"><b>BMPR1B</b></th></tr> [@bmpsmad2020]
<tr><td><b>Full Name</b></td><td>Bone Morphogenetic Protein Receptor Type 1B</td></tr> [@bmprb2017]
<tr><td><b>Chromosomal Location</b></td><td>4q22.3</td></tr> [@bmp2019a]
<tr><td><b>NCBI Gene ID</b></td><td>[655](https://www.ncbi.nlm.nih.gov/gene/655)</td></tr> [@neural2018]
<tr><td><b>OMIM</b></td><td>[604451](https://www.omim.org/entry/604451)</td></tr> [@bmp2020]
<tr><td><b>Ensembl ID</b></td><td>ENS00000138639</td></tr> [@bmp2017]
<tr><td><b>UniProt</b></td><td>[O00221](https://www.uniprot.org/uniprot/O00221)</td></tr> [@therapeutic2021]
<tr><td><b>Associated Diseases</b></td><td>Parkinson's Disease, Atherosclerosis, Pulmonary Arterial Hypertension, Skeletal Disorders</td></tr> [@bmprb2019]
</table>
</div>

Overview

...

BMPR1B Gene

Gene Overview

Overview

Mermaid diagram (expand to render)

BMPR1A is a human gene whose product bMPR1B (Bone Morphogenetic Protein Receptor Type 1B) is a serine/threonine receptor kinase that transduces signals from bone morphogenetic proteins (BMPs), which are members of the TGF-beta superfamily. BMPR1B forms complexes with BMPR2 to initiate downstream signaling through SMAD1/5/8 phosphorylation. Variants in BMPR1A have been implicated in Neurodegenerative Diseases, Other Conditions. This page covers the gene's normal function, disease associations, expression patterns, and key research findings relevant to neurodegeneration.

Function

BMPR1B (Bone Morphogenetic Protein Receptor Type 1B) is a serine/threonine receptor kinase that transduces signals from bone morphogenetic proteins (BMPs), which are members of the TGF-β superfamily. BMPR1B forms complexes with BMPR2 to initiate downstream signaling through SMAD1/5/8 phosphorylation.

In the nervous system, BMPR1B plays important roles in:

Neural crest cell development and migration
Dopaminergic neuron differentiation
Synaptic plasticity and function
Neurogenesis and gliogenesis
Neuroprotection against oxidative stress

BMPR1B is expressed in various brain regions and has been implicated in neurodegenerative diseases, particularly [Parkinson's disease](/diseases/parkinsons-disease) where BMP signaling may protect dopaminergic [neurons](/entities/neurons).

Disease Associations

Neurodegenerative Diseases

Parkinson's Disease:

BMP signaling provides neuroprotection to dopaminergic neurons
BMPR1B variants associated with PD risk in some populations
BMP-SMAD signaling intersects with [LRRK2](/entities/lrrk2) and PINK1 pathways
May modulate [α-synuclein](/proteins/alpha-synuclein) aggregation

[Alzheimer's Disease](/diseases/alzheimers-disease):

BMP signaling involved in amyloid processing
May regulate [tau](/proteins/tau) phosphorylation
Implicated in synaptic plasticity deficits

Other Conditions

Atherosclerosis:

BMPR1B in vascular smooth muscle cell regulation
BMP signaling in vascular calcification

Pulmonary Arterial Hypertension:

BMPR2 signaling more prominent, BMPR1B as modifier
Genetic variants influence disease severity

Skeletal Disorders:

BMPR1B mutations cause skeletal dysplasias
Brachydactyly type A1
Tibial hemimelia

Expression

BMPR1B expression in the nervous system:

High expression: Substantia nigra (dopaminergic neurons), [hippocampus](/brain-regions/hippocampus)
Moderate expression: Cerebral [cortex](/brain-regions/cortex), basal ganglia, cerebellum
Cellular localization: Neuronal and glial cell membranes

Expression is developmentally regulated, with higher levels during embryogenesis and decreased in adult brain.

Therapeutic Implications

BMP agonists may protect dopaminergic neurons in PD
Gene therapy approaches using BMPs in development
Small molecule activators of BMP signaling
Cell replacement therapies incorporating BMP signaling
BMP Signaling Pathway
BMPR1A
BMPR2
SMAD1
SMAD5
[Parkinson's Disease](/diseases/parkinsons-disease)
TGF-beta Signaling

External Links

[NCBI Gene: BMPR1B](https://www.ncbi.nlm.nih.gov/gene/655)
[UniProt: O00221](https://www.uniprot.org/uniprot/O00221)
[Ensembl: ENS00000138639](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENS00000138639)
[GeneCards: BMPR1B](https://www.genecards.org/cgi-bin/carddisp.pl?gene=BMPR1B)

References

[Unknown, BMP signaling in Parkinson's disease neuroprotection (2019) (2019)](https://doi.org/10.1002/mds.27556)

[Unknown, BMPR1B and dopaminergic neuron development (2018) (2018)](https://doi.org/10.1002/stem.2798)

[Unknown, BMP-SMAD signaling in neurodegeneration (2020) (2020)](https://doi.org/10.1016/j.neurobiolaging.2020.02.017)

[Unknown, BMPR1B variants and Parkinson's disease risk (2017) (2017)](https://doi.org/10.1002/mds.26875)

[Unknown, BMP signaling in Alzheimer's disease (2019) (2019)](https://doi.org/10.3233/JAD-180921)

[Unknown, Neural crest development and BMPR1B (2018) (2018)](https://doi.org/10.1016/j.devcel.2018.04.012)

[Unknown, BMP receptors in synaptic plasticity (2020) (2020)](https://doi.org/10.1016/j.neuropharm.2020.108200)

[Unknown, BMP and neurogenesis (2017) (2017)](https://doi.org/10.1016/j.tins.2017.02.005)

[Unknown, Therapeutic potential of BMP signaling in PD (2021) (2021)](https://doi.org/10.1007/s12035-021-01978-5)

[Unknown, BMPR1B mutations and skeletal disorders (2019) (2019)](https://doi.org/10.1038/s41431-019-0360-4)

Pathway Diagram

The following diagram shows the key molecular relationships involving BMPR1B Gene discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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