Enzymatic hydrolysis studies of arabinogalactan-protein structure from Acacia gum: the self-similarity hypothesis of assembly from a common building block.

•AG molecular fraction from Acacia gum is unaffected by acidic and alkaline proteases.•AGP molecular fraction from Acacia gum is affected only by alkaline proteases.•Conformations of enzyme-treated AGPs are very similar and close to AG.•Self-ordering process governs AGP macromolecular assembly.