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  The effect of post-translational modifications on the antimicrobial activity of apalbumin2.

Bíliková, K., Mirgorodskaya, E., Bukovská, G., Gobom, J., Lehrach, H., & Imúth, J. (2009). The effect of post-translational modifications on the antimicrobial activity of apalbumin2. Proteomics, 9(8), 2131-2138. doi:10.1002/pmic.200800705.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-7DDD-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-7DDE-7
Genre: Journal Article

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 Creators:
Bíliková, Katarína, Author
Mirgorodskaya, Ekaterina1, Author
Bukovská, Gabriela, Author
Gobom, Johan2, Author              
Lehrach, Hans2, Author              
Imúth, Jozef, Author
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1Max Planck Society, ou_persistent13              
2Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433550              

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Free keywords: Antimicrobial glycoprotein; Honeybee; MALDI-TOF/TOF; Nano LC-MALDI MS; Royal jelly
 Abstract: This study illustrates multifunctionality of proteins of honeybee royal jelly (RJ) and how their neofunctionalization result from various PTMs of maternal proteins. Major proteins of RJ, designated as apalbumins belong to a protein family consisting of nine members with Mr of 49-87 kDa and they are accompanied by high number of minority homologs derived from maternal apalbumins. In spite of many data on diversity of apalbumins, the molecular study of their individual minority homologous is still missing. This work is a contribution to functional proteomics of second most abundant protein of RJ apalbumin2 (Mr 52.7 kDa). We have purified a minority protein from RJ; named as apalbumin2a, differ from apalbumin2 in Mr (48.6 kDa), in N-terminal amino acids sequences - ENSPRN and in N-linked glycans. Characterization of apalbumin2a by LC-MALDI TOF/TOF MS revealed that it is a minority homolog of the major basic royal jelly protein, apalbumin2, carrying two fully occupied N-glycosylation sites, one with high-mannose structure, HexNAc2Hex9, and another carrying complex type antennary structures, HexNAc4Hex3 and HexNAc5Hex4. We have found that apalbumin2a inhibit growth of Paenibacillus larvae. The obtained data call attention to functional plasticity of RJ proteins with potential impact on functional proteomics in medicine.

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Language(s): eng - English
 Dates: 2009-03-25
 Publication Status: Published in print
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Title: Proteomics
Source Genre: Journal
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Pages: - Volume / Issue: 9 (8) Sequence Number: - Start / End Page: 2131 - 2138 Identifier: ISSN: 1615-9853