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Protein Complex Assembly

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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
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Updated: Feb 24, 2026

The MultiBac Protein Complex Production Platform at the EMBL

The MultiBac Protein Complex Production Platform at the EMBL

Published on: July 11, 2013

OBIMAP (One-Bead Interchain Multipeptide Assembly Platform).

Othman Al Musaimi^1,2,3,4, Daryl R Williams^3,4

¹School of Pharmacy, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K.

ACS Bio & Med Chem Au

|February 23, 2026

Summary

This summary is machine-generated.

A new method, the one-bead interchain multipeptide assembly platform (OBIMAP), enables simultaneous peptide synthesis on a single bead. This advances solid-phase peptide synthesis (SPPS) for diverse and complex peptide structures.

Keywords:

bicyclic peptides constrained peptides cross-linked peptides cyclic peptides interchain assembly solid-phase peptide synthesis therapeutic peptides

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Area of Science:

Chemical Synthesis
Biochemistry
Organic Chemistry

Background:

Solid-phase peptide synthesis (SPPS) is a cornerstone of peptide chemistry.
Conventional SPPS has limitations in generating complex peptide architectures.
Synthesizing therapeutic peptides often requires cumbersome solution-phase fragment condensation.

Purpose of the Study:

To report a significant advancement in Merrifield's classic solid-phase peptide synthesis (SPPS).
To introduce a novel platform for simultaneous multipeptide synthesis and assembly.
To expand the scope of accessible peptide structures, including those previously inaccessible.

Main Methods:

Building upon the one-bead, one-compound (OBOC) concept.
Simultaneous synthesis of multiple peptides on a single bead.
Novel solid-phase interchain assembly reaction (OBIMAP).

Main Results:

Successful generation of diverse peptide architectures: linear, cyclic, and bicyclic.
Demonstrated superior efficiency in time and product purity compared to traditional methods.
Eliminated the need for solution-phase fragment condensation in synthesizing therapeutic peptides.

Conclusions:

The one-bead interchain multipeptide assembly platform (OBIMAP) significantly enhances conventional SPPS.
OBIMAP provides access to novel classes of peptide architectures, including highly constrained peptides.
This method represents a major advancement for peptide synthesis and drug discovery.