Abstract:
:As part of research exploring the feasibility of using antibody fragments to inhibit the growth of organisms implicated in dandruff, we isolated antibody fragments that bind to a cell surface protein of Malassezia furfur in the presence of shampoo. We found that phage display of llama single-domain antibody fragments (VHHs) can be extended to very harsh conditions, such as the presence of shampoo containing nonionic and anionic surfactants. We selected several VHHs that bind to the cell wall protein Malf1 of M. furfur, a fungus implicated in causing dandruff. In addition to high stability in the presence of shampoo, these VHHs are also stable under other denaturing conditions, such as high urea concentrations. Many of the stable VHHs were found to contain arginine at position 44. Replacement of the native amino acid at position 44 with arginine in the most stable VHH that lacked this arginine resulted in a dramatic further increase in the stability. The combination of the unique properties of VHHs together with applied phage display and protein engineering is a powerful method for obtaining highly stable VHHs that can be used in a wide range of applications.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Dolk E,van der Vaart M,Lutje Hulsik D,Vriend G,de Haard H,Spinelli S,Cambillau C,Frenken L,Verrips Tdoi
10.1128/AEM.71.1.442-450.2005keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
442-50issue
1eissn
0099-2240issn
1098-5336pii
71/1/442journal_volume
71pub_type
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