Follistatin-344 (1mg) Research Peptide: A Full‑Length Isoform for Myostatin, Muscle & Regenerative Studies

If your research investigates the molecular regulation of skeletal muscle mass, the myostatin signalling pathway, or the broader roles of TGF‑β superfamily ligands in tissue development and repair, Follistatin-344 (1mg) research peptide offers a precisely defined and increasingly well‑characterised synthetic tool. Follistatin-344 is a full‑length isoform of the endogenous glycoprotein follistatin, arising from alternative splicing of the FST gene. As a potent binding partner of several TGF‑β family members—most notably myostatin (GDF‑8) and activin—it functions as a high‑affinity antagonist that sequesters these ligands and prevents their signalling through activin type II receptors (ActRIIB).

This positions Follistatin-344 (1mg) research peptide as a valuable tool for laboratories investigating muscle hypertrophy, neuromuscular preservation, metabolic regulation, tissue fibrosis, and even aspects of cancer biology and neurodevelopment.

At Wuhan Top Miracle Peptides, we supply high‑purity Follistatin-344 (1mg) research peptide to research institutions and wholesale buyers across the United Kingdom, France, Germany, Spain, Sweden, Italy, and the USA. Every batch is lyophilised, HPLC‑verified to ≥98% purity, and accompanied by a Certificate of Analysis (COA), ensuring your investigations into myostatin inhibition, muscle regeneration, and TGF‑β signalling begin with uncompromising quality.

What Is Follistatin-344 and How Does It Work?

To fully appreciate the research potential of Follistatin-344 (1mg) research peptide, it is essential to understand its biochemical identity and the mechanisms by which it exerts its pleiotropic effects.

The Full‑Length Isoform

Follistatin-344 is a synthetic peptide corresponding to the full‑length endogenous follistatin isoform consisting of 344 amino acids. It is derived from the FST gene, which encodes two primary isoforms—FST317 and FST344—through alternative splicing of the precursor mRNA. The 344‑amino‑acid isoform possesses a unique C‑terminal region that may influence its tissue distribution and stability in circulation.

The peptide features multiple cysteine‑rich domains stabilised by characteristic disulfide bridges, along with an N‑terminal atypical TGF‑β binding domain and three follistatin domains that contain EGF‑like and kazal‑like motifs.

Mechanism of Action: High‑Affinity TGF‑β Antagonism

The biological activity of Follistatin-344 (1mg) research peptide is mediated through high‑affinity protein‑protein interactions with multiple TGF‑β superfamily ligands:

• Myostatin (GDF‑8) Inhibition: Follistatin-344 binds directly to myostatin, a powerful negative regulator of muscle mass. By sequestering myostatin, it prevents the ligand from activating its receptor (ActRIIB) on muscle cells. This blockade disrupts the catabolic TGF‑β signalling cascade, leading to enhanced muscle hypertrophy, increased satellite cell activation and differentiation, and potential reduction in inflammation‑related muscle loss.

• Activin and BMP Binding: Beyond myostatin, Follistatin-344 also exhibits binding affinities for activin and bone morphogenetic proteins (BMPs). This broader ligand‑binding profile expands its potential receptor interaction repertoire and implicates it in diverse biological processes including tissue remodelling, fibrosis regulation, and cellular differentiation.

• Downstream Signalling Modulation: By sequestering TGF‑β ligands, Follistatin-344 alters downstream SMAD signalling cascades associated with cellular growth suppression and supports key anabolic pathways such as Akt/mTOR, which are central to protein synthesis and cellular growth regulation.

Key Research Applications for Follistatin-344 (1mg)

Follistatin-344 (1mg) research peptide is a versatile tool with applications spanning several domains of biomedical research.

1. Muscle Biology & Myostatin Inhibition Research

The most established application of Follistatin-344 lies in its ability to serve as a potent myostatin antagonist for studying skeletal muscle regulation. Research applications include:

• Muscle Hypertrophy Studies: Investigating how myostatin blockade unleashes anabolic pathways, leading to enhanced protein synthesis and greater muscle fibre size.

• Satellite Cell Activation: Exploring how Follistatin-344 promotes satellite cell activation, differentiation, and muscle repair.

• Sarcopenia Models: Studying the peptide as a potential intervention against age‑related muscle degeneration and sarcopenia.

• Neuromuscular Preservation: Investigating Follistatin-344’s potential to support motor neuron maintenance and preserve neuromuscular connections in models resembling spinal muscular atrophy.

2. Metabolic & Endocrine System Research

Follistatin-344 has demonstrated potential in metabolic regulation. Research applications include:

• Pancreatic β‑Cell Proliferation: Investigating how Follistatin-344 overexpression may promote β‑cell proliferation, potentially increasing insulin secretion and normalising fasting glucose levels.

• Insulin Sensitivity: Studying the peptide’s ability to reduce systemic inflammatory adipokines and support insulin sensitivity.

• Adipose Inflammation: Exploring how Follistatin-344 may dampen adipose‑related inflammation and support systemic metabolic signalling.

3. Tissue Fibrosis & Regeneration Research

Given its ability to bind activin and BMPs, Follistatin-344 is a valuable tool for fibrosis and regeneration research:

• Hepatic Fibrosis: Studies suggest Follistatin-344 may attenuate fibrotic deposition by limiting activin‑mediated pathways, with data showing up to ~32% reduction in liver fibrosis and lowered apoptosis in research settings.

• Tissue Repair: Investigating the peptide’s potential to foster proliferation of parenchymal cells and support tissue repair processes.

• Joint Health: Exploring how Follistatin-344 may reduce inflammatory cascades that drive degenerative remodelling in joint systems.

4. Bone & Skeletal Tissue Research

Early mechanistic research suggests Follistatin-344 may support osteogenesis:

• Bone Formation: Mitigating the effects of activin and myostatin with Follistatin-344 may support increased bone formation and density.

• Skeletal Integrity: Studying the peptide’s role in skeletal tissue maintenance and repair.

5. Cancer & Neurodevelopmental Research

Emerging research has explored Follistatin-344’s paradoxical role in cancer and neurodevelopment:

• Tumour Biology: Follistatin-344 presents a complex profile in cancer research—increased expression may correlate with elevated proliferation of neoplastic cells while potentially reducing invasive and metastatic tendencies.

• Neurodevelopmental Scaffolding: The peptide may support early neural structure formation by mitigating BMP‑driven epidermal differentiation during embryonic tissue patterning.

• Metastasis Research: In breast tumour models, elevated Follistatin-344 presence may associate with slower spread to distant sites.

Chemical & Physical Specifications

Accurate characterisation of Follistatin-344 (1mg) research peptide is essential for reproducible experimental design.

Note: The 1 mg mass refers to the weight of the peptide in its lyophilised form. Follistatin-344 is typically supplied as a TFA or acetate salt, which enhances aqueous solubility.

Reconstitution & Handling Protocol for Follistatin-344 (1mg)

Proper reconstitution of Follistatin-344 (1mg) research peptide is critical for maintaining its structural integrity and biological activity.

Step 1 – Preparation

• Bring the sealed Follistatin-344 vial and your chosen diluent (sterile bacteriostatic water or sterile PBS, pH 5‑7) to room temperature. Condensation can degrade the lyophilised powder.

• Clean your work surface with 70% ethanol and lay out sterile syringes, alcohol wipes and a clean work mat.

Step 2 – Vial Sanitisation

• Wipe the rubber stopper of the Follistatin-344 vial with a fresh 70% ethanol wipe. Allow the alcohol to evaporate completely before piercing.

Step 3 – Reconstitution

• Draw your desired volume of diluent into a sterile syringe. A common starting concentration for research applications is 1 mg per 0.1‑0.2 mL of diluent, yielding a 5‑10 mg/mL stock solution.

• Insert the needle and slowly inject the diluent against the inner glass wall. Do not spray directly onto the lyophilised powder.

• Gently swirl the vial until the solution is clear and fully dissolved. Do not shake vigorously, as shaking can cause denaturation.

Step 4 – Aliquoting & Storage

• Immediately after dissolution, aliquot the reconstituted Follistatin-344 into single‑use sterile vials.

• Store aliquots at –20°C. Avoid repeated freeze‑thaw cycles, as peptides are susceptible to degradation.

• Once thawed, store at 2‑8°C and use within a short period.

Concentration Reference Table

Adjust diluent volume based on your experimental requirements.

Storage & Stability Guidelines

Why Choose Wuhan Top Miracle Peptides for Follistatin-344 (1mg)?

As an authentic licensed peptide supplier based in the United Kingdom, we supply Follistatin-344 (1mg) research peptide and a wide range of research‑grade compounds under rigorous quality assurance protocols, fully aligned with Google’s E‑E‑A‑T standards (Experience, Expertise, Authoritativeness, Trustworthiness).

• Verified Purity: Independent HPLC analysis with purity guaranteed ≥98% for every batch.

• GMP‑Compliant Manufacturing: All peptides are synthesised under strict quality control conditions.

• Full Traceability: Batch‑specific Certificates of Analysis (COA) are available for every order.

• Wholesale Supply: We serve research institutions, laboratories, and wholesale buyers across the UK, EU, and USA with flexible volume pricing and reliable logistics.

• UK‑Based Regulatory Compliance: All products are supplied strictly as research‑grade chemicals for laboratory use only (RUO).

Researchers across the United Kingdom—including those at leading institutions in London, Cambridge, Oxford, Manchester, and Edinburgh—trust us for fast domestic delivery, transparent documentation and professional technical support.

FAQ: Follistatin-344 (1mg) Research Peptide

What is Follistatin-344 (1mg) research peptide?
Follistatin-344 is a synthetic peptide corresponding to the full‑length endogenous follistatin isoform consisting of 344 amino acids. It is a high‑affinity binding partner of TGF‑β superfamily members including myostatin, activin, and BMPs, and functions as a potent antagonist of myostatin‑mediated muscle growth suppression.

 What are the primary research applications for Follistatin-344?
Follistatin-344 is used in muscle biology and myostatin inhibition research (muscle hypertrophy, satellite cell activation, sarcopenia), metabolic and endocrine system research (β‑cell proliferation, insulin sensitivity), tissue fibrosis and regeneration research (hepatic fibrosis, tissue repair), bone and skeletal tissue research, and cancer and neurodevelopmental research.

How does Follistatin-344 inhibit myostatin?
Follistatin-344 binds directly to myostatin, preventing it from activating its receptor (ActRIIB) on muscle cells. This blockade disrupts the catabolic TGF‑β signalling cascade, resulting in enhanced muscle hypertrophy, increased satellite cell activation and differentiation, and potential reduction in inflammation‑related muscle loss.

What is the molecular weight of Follistatin-344?
The molecular weight of Follistatin-344 is approximately 3.78 kDa.

What purity does your Follistatin-344 (1mg) meet?
Our Follistatin-344 is tested to ≥98% purity by HPLC. A Certificate of Analysis (COA) is supplied with every order.

How should I reconstitute Follistatin-344 (1mg)?
Reconstitute with sterile bacteriostatic water or sterile PBS (pH 5‑7). Allow the vial to reach room temperature, then slowly inject the diluent against the inner glass wall and swirl gently. Do not shake.

How should I store reconstituted Follistatin-344?
Reconstituted Follistatin-344 should be stored at 2‑8°C for short‑term use. For longer storage, aliquot immediately into single‑use vials and store at –20°C for up to 3 months. Avoid repeated freeze‑thaw cycles.

Is Follistatin-344 research peptide legal to purchase in the UK?
Yes. Follistatin-344 is a laboratory reagent sold for research use only (RUO). It is fully legal to purchase, possess, and use in the United Kingdom for legitimate in‑vitro or in‑vivo scientific research, provided it is not marketed with therapeutic claims.

Does Wuhan Top Miracle Peptides ship internationally?
Yes. We ship across the EU (France, Germany, Spain, Sweden, Italy) and to the USA from our UK warehouse. Wholesale pricing is available for bulk orders.

Wholesale Follistatin-344 1mg Supply Across the UK and Europe

Wuhan Top Miracle Peptides supports wholesale peptide and protein research buyers in the United Kingdom and international markets.

We Support Enquiries From:

• United Kingdom
• France
• Germany
• Spain
• Sweden
• Italy
• USA
• Wider Europe

For larger Follistatin-344 1mg enquiries, contact our team before ordering. This helps confirm stock, documentation, shipping options, product identity, and buyer verification requirements.

Where to Source Follistatin-344 1mg in the UK

If you are searching for where to source Follistatin-344 1mg in the UK, Wuhan Top Miracle Peptides provides a simple professional enquiry process.

Professional Enquiry Process

1. Review the Follistatin-344 1mg product details.
2. Check the current label and batch information.
3. Confirm whether the batch is listed as Follistatin-344, FST344, or another verified identity.
4. Ask about COA and purity-related documentation.
5. Confirm sequence, expression system, and storage notes where required.
6. Confirm your shipping country.
7. Discuss wholesale quantity requirements.
8. Complete buyer verification where required.
9. Place a professional enquiry with support from our team.

 

Bulk Peptides Page
Shipping & Returns Page
Contact Us Page
Shop Page
Quality / Compliance Page
NCBI Gene / FST reference
Scientific or peer-reviewed reference source
GOV.UK / MHRA
Google Search Central
ASA / CAP Code Section 12

From its role as a high‑affinity antagonist of myostatin and other TGF‑β superfamily ligands to its well‑documented involvement in muscle hypertrophy, metabolic regulation, tissue fibrosis, and neurodevelopmental processes, Follistatin-344 (1mg) research peptide provides a precisely defined and increasingly valuable platform for advanced biomedical research.

Its ability to modulate skeletal muscle growth, support pancreatic β‑cell proliferation, attenuate fibrotic deposition, and influence cancer and neurodevelopmental pathways—supported by a growing body of peer‑reviewed research published in PubMed, PMC, and other authoritative journals—makes it a valuable addition to any laboratory investigating myostatin signalling, muscle biology, or the broader regulatory roles of TGF‑β superfamily ligands. By choosing high‑purity, lab‑verified Follistatin-344 (1mg) research peptide from Wuhan Top Miracle Peptides, you ensure that your research is built on a foundation of quality, reproducibility, and scientific integrity.

Ready to advance your research with Follistatin-344 (1mg)? Browse our product catalogue, request a wholesale quote, or contact our support team today to discuss your laboratory’s specific needs. Place your order now and receive GMP‑grade Follistatin-344 delivered directly to your facility in the UK, EU, or USA.