ACE-031

Compound Overview

ACE-031 is a soluble activin receptor type IIB (ActRIIB) construct fused to an IgG1-Fc domain. In research systems, it acts as a ligand trap by binding and sequestering myostatin, activin, GDF-11, and other TGF-β superfamily ligands that normally inhibit muscle growth. This mechanism makes ACE-031 relevant to laboratory studies of myostatin signaling and muscle-hypertrophy pathway models.

Research Background & Published Literature

ACE-031 was developed by Acceleron Pharma and is discussed in clinical-trial literature involving Duchenne muscular dystrophy research cohorts. Published work in Muscle & Nerve and related journals examined muscle mass and strength parameters in preclinical models. This background is provided for mechanistic research context only and does not indicate therapeutic, human-use, or veterinary-use approval for Nexus ACE-031.

For additional context on mechanism of action, signaling pathways, and controlled experimental applications, researchers can review the peer-reviewed literature below:

Researchers reviewing the literature around this compound can use the peer-reviewed resources below for additional context on mechanism of action, signaling pathways, and controlled laboratory research applications:

• Attie et al. (2013) — Muscle Nerve
• Cadena et al. (2010) — J Appl Physiol (1985)

Storage, Handling & Stability Guidelines

For long-term stability, keep lyophilized ACE-031 stored at -20°C. Once reconstituted with sterile diluent, hold the preparation at 2–8°C and reduce freeze-thaw exposure by separating working volumes according to your laboratory's standard operating procedures.

• Limit ambient-temperature handling time to help preserve compound integrity.
• Reseal vials promptly after each withdrawal to reduce moisture exposure.
• Wear appropriate personal protective equipment and follow institutional chemical safety protocols at all times.
• For traceability, label aliquots with compound name, concentration, reconstitution date, and operator initials.

Lab Verification

Nexus maintains batch-level verification records for research compounds in the Lab Verified archive, including HPLC purity review, Mass Spectrometry identity confirmation, and biologic-specific release notes where current lot data is available.