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Literature summary for 3.4.22.2 extracted from
- Adsorption of papain on solid substrates of different hydrophobicity (2016), Biointerphases, 11, 031003 .
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Carica papaya | P00784 | - |
- |
General Information
| General Information | Comment | Organism |
|---|---|---|
| additional information | adsorption properties of protein papain at the solid/liquid interfaces of different hydrophobicity (highly oriented pyrolytic graphite (HOPG), bare gold, CH3, OH, and COOH-terminated self-assembled monolayers on gold) are studied by a combined quartz crystal microbalance and atomic force microscopy techniques. Papain forms an incomplete monolayer at hydrophobic interfaces (HOPG and CH3-terminated substrate), whereas on more hydrophilic ones, a complete monolayer formation is always observed with either the onset of the formation of a second layer (bare gold substrate) or adsorption in a multilayer fashion, possibly a bilayer formation (OH-terminated substrate). The surface concentration and compact monolayer film thickness is much lower on the COOH-terminated substrate compared to other surfaces studied. This result is explained by partial dissociation of the interfacial COOH groups leading to additional electrostatic interactions between the positively charged protein domains and negatively charged carboxylate anions, as well as to local pH changes promoting protein denaturation | Carica papaya |
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