Target intelligence / Profile preview

Boron (B)

Target
B
Molecular classification
Element, metalloid
01

Overview

Boron is a metalloid element with atomic number 5, properties intermediate between metals and nonmetals. It is essential for plant growth and used in various industrial and materials science applications. Boron exists in amorphous and crystalline forms and forms numerous compounds, including borates and boric acid. Boron is not found as a free element in nature but is present in minerals and volcanic springs. While boron is not a classical therapeutic target, boron-based compounds have applications in medicinal chemistry, such as proteasome inhibition in cancer therapy.

Other names
Boronmetallic boron[2][4]boric anhydride (for oxide)boron trioxideboric acidborax (for compounds)[2][4][7]
02

Mechanism of action

Proteasome inhibition for bortezomib (boron atom forms reversible covalent bonds with active site threonine); antifungal, antiseptic, fluxing agent (via boron compounds)

03

Biological functions

Essential micronutrient for plant cell walls[6]involved in certain metabolic processesnot directly involved in signal transduction or classic cellular pathways in animals
04

Disease associations

Some boron compounds are under investigation for cancer (e.g., brain tumours)[6]otherwise, boron itself is not directly implicated as a disease target
05

Safety considerations

Boron toxicity can occur at high levels in humans, affecting metabolism and possibly reproduction[2][6]is essential for plants but can be harmful at excessive concentrations[6]
06

Interacting drugs

bortezomib
07

Biomarkers

No established role for elemental boron itself as a biomarkerboron concentration may be measured for exposure/toxicity[2]

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