Quality & Analytics / Technical guide

ACE-031 Supplier China: ActRIIB-Fc Fusion Identity and Quality Checklist

A research sourcing checklist for ACE-031 that focuses on ActRIIB-IgG1 Fc-fusion identity, protein-specific analytical evidence, supplier authenticity and claim boundaries.

Reviewed August 2026Buyer & quality briefingResearch supply context
Essential point

ACE-031 is described in the clinical study record as ActRIIB-IgG1, a soluble receptor Fc fusion. It should not be qualified as a simple peptide, full-length receptor or generic myostatin-related powder.

Answer first / Search intent

Direct answer for Google and AI search

A research sourcing checklist for ACE-031 that focuses on ActRIIB-IgG1 Fc-fusion identity, protein-specific analytical evidence, supplier authenticity and claim boundaries. The useful decision is not a simple yes-or-no claim; it is whether the named material, batch evidence, method scope and supplier responsibility match the buyer's research requirement.

Users may ask

  1. How should a buyer evaluate ACE 031?
  2. What data should a peptide supplier provide for quality & analytics?
  3. Does evidence distinguish the intended Fc fusion from full-length ACVR2B?
  4. Which tests address aggregation and protein impurities?
  5. Is the offered lot linked to every report?

Key parameters

Primary intent
ACE-031 supplier China
Product focus
ACE 031
Page type
technical procurement answer
Evidence boundary
Quality & Analytics
Required next step
confirm lot, method, specification and project scope
Boundary

This answer supports education, procurement comparison and laboratory research sourcing. It does not imply human benefits, dosage, injection guidance, treatment claims or approval for clinical, diagnostic or veterinary use.

01 / Review framework

What procurement and laboratory teams should review

01

Define the receptor-domain and Fc fusion construct

02

Verify Fc presence and expected oligomeric state

03

Use orthogonal protein identity and purity methods

04

Check study status and prohibit human-use claims

02 / Technical interpretation

Read the result in the context of its method

Analytical values become decision-useful only when the sample, batch, procedure, units, acceptance criterion and result belong together. A single headline percentage cannot answer identity, purity and content questions at the same time.

  • Confirm the document is lot-linked, not a generic example.
  • Distinguish qualitative identification from relative purity and quantitative assay.
  • Check method scope, reporting units and any stated exclusions.
01Define the material and form
02Match the batch and method
03Compare criterion with result
04Resolve exceptions before release
03 / In-depth guide

Identity is the primary procurement risk

The registered study names ACE-031 as ActRIIB-IgG1. Recent peer-reviewed analysis of products sold under the name found that several contained full-length activin receptor IIB rather than the intended Fc-fusion architecture, demonstrating why a catalog name is not evidence of identity.

A fit-for-purpose package should distinguish receptor fragment, Fc component and assembly state. Depending on the project, this may involve electrophoresis under reducing and non-reducing conditions, immunochemical or peptide-mapping evidence, intact or subunit mass analysis, and size-based methods.

04 / In-depth guide

Review evidence boundaries as part of supplier quality

ClinicalTrials.gov records the ACE-031 study as terminated based on preliminary safety data. A responsible supplier article must not translate research history into efficacy, safety or administration claims. The COA can describe only the tested batch attributes.

  • Controlled construct definition
  • Fc and receptor-domain evidence
  • Aggregation and impurity profile
  • Research-only label and documents
03 / Supplier discussion

Questions to resolve before quotation or release

  1. Does evidence distinguish the intended Fc fusion from full-length ACVR2B?
  2. Which tests address aggregation and protein impurities?
  3. Is the offered lot linked to every report?
HK PEPTIDES project note

HK PEPTIDES ACE 031 is offered solely as a laboratory research material; no administration, muscle-building, treatment, clinical or approval claims are made.

FAQ / Buyer questions

Frequently asked questions

Is ACE-031 a short peptide?

No. It is described as a soluble activin receptor type IIB-IgG1 Fc fusion protein.

Why is an ACE-031 catalog name insufficient?

Published testing has found mislabeled market samples, so buyers need orthogonal evidence for the intended fusion construct.

04 / Technical references

Source material and further reading

This guide is informed by the following primary guidance and established technical resources. Always confirm the current version and its applicability to your material and jurisdiction.

  1. ClinicalTrials.govACE-031 (ActRIIB-IgG1) Study NCT01099761
  2. PubMedGel Electrophoretic Detection of Black Market ACE-031
  3. ICHQ6A Specifications: Test Procedures and Acceptance Criteria
  4. U.S. FDAAnalytical Procedures and Methods Validation for Drugs and Biologics
Research use only

HK PEPTIDES materials are supplied for laboratory research and documentation workflows only. They are not intended for human consumption, diagnostic use, therapeutic use, veterinary use or clinical application.

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