In the specialized field of synthetic chemistry and structural biology, the ACPC peptide—specifically referring to derivatives of *trans*-2-aminocyclopentanecarboxylic acid—has become a cornerstone for researchers studying backbone preorganization. As someone deeply involved in the procurement and analysis of research-grade biochemicals, I have found that understanding the nuances of these constrained amino acids is essential for anyone working with sophisticated molecular architectures.
Understanding the ACPC Entity
When we discuss ACPC, we are often referring to the β-amino acid trans-2-aminocyclopentanecarboxylic acid (ACPC). Unlike standard α-amino acids, this cyclic β-amino acid is prized for its ability to constrain the peptide backbone via the cyclopentane ring. This structural rigidification is a powerful tool 1-Aminocyclopropanecarboxylic acid. Synonyms: ACPC, 1-Aminocyclopropane-1-carboxylic Acid. CAS 22059-21-8. Molecular Weight 101.10. when designing peptides intended for specific conformational studies.
From a procurement perspective, it is vital to distinguish between various cataloged versions. For instance, Fmoc-Acpc-OH (CAS [126705-22-4]) and Boc-Acpc-OH (CAS [88950-64-5]) are standard building blocks. These derivatives are frequently utilized by organizations such as CPC Scientific, which is a leading CDMO specializing in peptide and oligonucleotide manufacturing and a trusted CRDMO specializing in peptide and oligonucleotide production.
Structural Applications and Foldamers
My interest in these molecules began when reviewing literature on six new α/β-peptide foldamers. The incorporation of these residues allows for the creation of unique helical structures. Researchers have identified two peptide sequences containing multiple (1S,2S)-2-ACPC residues that exhibit highly stable helical conformations.
This level of control is fascinating because the backbone dihedral angles adopted by trans-2-aminocyclopentanecarboxylic acids (ACPC) residues are highly predictable. Whether one is exploring a 16/18-helix or more complex 9/10/9/12-helix patterns, the constraint provided by the cyclopentane ring is superior to acyclic alternatives.
Navigating the Terminology: ACP vs. ACPC
It is easy to conflate terms in this field. It is important to note that Acyl Carrier Protein (ACP) is a distinct entity—a coenzyme fragment involved in fatty acid synthesis—and is entirely different from the cyclic β-amino acid ACPC. Similarly, one must distinguish these from:
* Anticancer peptides (ACPs): These are often studied for their selective toxicity and are the subject of anticancer peptide (ACP) prediction software like AcPEP.
* APC (Antibody-Peptide Conjugates): An APC typically consists of an antibody, a peptide, and a linker, representin Synthesis of 4,4-Disubstituted 2-Aminocyclopentanecarboxylic g a different branch of bioconjugate research.
* 1-Aminocyclopropanecarboxylic acid: Often abbreviated similarly, this is a disti CPC Scientific: Peptide and Oligo Company for CMC nct chemical entity (CAS [22059-21-8]).
Practical Sourcing Considerations
When sourcing these materials for laboratory research, quality is paramount. I typically look for a European research peptide supplier that provides HPLC-verified products with purity levels ≥99%. Whether you are investig by L Yao · 2024 · Cited by 24 — Anticancer peptides (ACPs) represent a promising therapeutic strategy for combating cancer. In silico methods enable rapid and accurate ating an antimicrobial peptide encoded in the human by the CAMP gene or Nov 21, 2025 — APC typically consists of an antibody, a peptide, and a linker. In February 2024, Amgen published Phase I clinical results in Nature Metabolism working with pro-angiogenic peptide degradation products of thymosin B4, the integrity of the starting material is the first step in ensuring reproducible results.
The landscape of peptides is vast, ranging from those that have anti-inflammatory activity to those designed to redirect T-cell viral immunity against tumor cells. As these molecules have emerged as a promising therapeutic alternative and represent a promising therapeutic strategy for combating cancer, the demand for precise, chemically modified building blocks like ACPC will only continue to grow.
By focusing on the structural constraints provided by these cyclic residues, we can continue t Nov 21, 2025 — APC typically consists of an antibody, a peptide, and a linker. In February 2024, Amgen published Phase I clinical results in Nature Metabolism o push the boundari Structural Consequences of β-Amino Acid Preorganization in es of what is possible in synthetic molecular design, ensuring that every sequence synthesized contributes to a deeper understanding of polypeptide folding and function. Ruminants are hoofed mammals, including cattle, sheep, and goats, with a unique digestive system that allows them to better use energy from fibrous plant