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Function

Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG. Inhibits androgen receptor (AR) and HTT aggregation and binding of G-actin is essential for its inhibition of AR.

Involvement in disease

Amyotrophic lateral sclerosis 18

ALS18

A neurodegenerative disorder affecting upper motor neurons in the brain and lower motor neurons in the brain stem and spinal cord, resulting in fatal paralysis. Sensory abnormalities are absent. The pathologic hallmarks of the disease include pallor of the corticospinal tract due to loss of motor neurons, presence of ubiquitin-positive inclusions within surviving motor neurons, and deposition of pathologic aggregates. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of the cases.

None

The disease is caused by variants affecting the gene represented in this entry.

Post-translational modifications

Phosphorylation at Ser-138 reduces its affinity for G-actin and blocks its interaction with HTT, reducing its ability to inhibit androgen receptor (AR) and HTT aggregation.

Sequence similarities

Belongs to the profilin family.

Tissue specificity

Expressed in epididymis (at protein level).

Cellular localization

  • Cytoplasm
  • Cytoskeleton

Alternative names

Profilin-1, Epididymis tissue protein Li 184a, Profilin I, PFN1

Target type

Proteins

Primary research area

Immunology & Infectious Disease

Molecular weight

15054Da

We found 21 products in 3 categories

Assay Kits

Target

Reactive species

Detection method

Proteins & Peptides

Target

Species of origin

Nature