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Barth T, Mandacaru SC, Charneau S, Souza MVD, Ricart CAO, Noronha EF, Souza AA, Freitas SMD, Roepstorff P, Fontes W, Castro MS, Pires Júnior OR. Biochemical and structural characterization of a protein complex containing a hyaluronidase and a CRISP-like protein isolated from the venom of the spider Acanthoscurria natalensis. J Proteomics 2018; 192:102-113. [PMID: 30165259 DOI: 10.1016/j.jprot.2018.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/23/2018] [Accepted: 08/19/2018] [Indexed: 12/19/2022]
Abstract
Spider venoms are composed of a complex mixture of bioactive molecules. The structural and functional characterization of these molecules in the venom of the Brazilian spider Acanthoscurria natalensis, has been little explored. The venom was fractionated using reversed-phase liquid chromatography. The fraction with hyaluronidase activity was named AnHyal. The partial sequencing of AnHyal revealed the presence of a CRISP-like protein, in addition to hyaluronidase, comprising 67% coverage for hyaluronidase from Brachypelma vagans and 82% for CRISP-like protein from Grammostola rosea. 1D BN-PAGE zymogram assays of AnHyal confirmed the presence of enzymatically active 53 kDa monomer and 124 and 178 kDa oligomers. The decomposition of the complexes by 2D BN/SDS-PAGE zymogram assays showed two subunits, 53 (AnHyalH) and 44 kDa (AnHyalC), with sequence similarity to hyaluronidase and CRISP proteins, respectively. The secondary structure of AnHyal is composed by 36% of α-helix. AnHyal presented maximum activity at pH between 4.0 and 6.0 and 30 and 60 °C, showed specificity to hyaluronic acid substrate and presented a KM of 617.9 μg/mL. Our results showed that hyaluronidase and CRISP proteins can form a complex and the CRISP protein may contribute to the enzymatic activity of AnHyalH.
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Affiliation(s)
- Tania Barth
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasilia, Brasilia-DF 70910-900, Brazil; Laboratory of Animal Histology, Department of Biological Sciences, State University of Santa Cruz, Ilhéus-Bahia 45662-900, Brazil.
| | - Samuel Coelho Mandacaru
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil
| | - Sébastien Charneau
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil.
| | - Marcelo Valle de Souza
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil.
| | - Carlos André Ornelas Ricart
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil.
| | - Eliane Ferreira Noronha
- Laboratory of Enzymology, Department of Cellular Biology/IB, University of Brasília, Brasilia-DF 70910-900, Brazil.
| | - Amanda Araújo Souza
- Laboratory of Molecular Biophysics, Department of Cellular Biology/IB, University of Brasília, Brasilia-DF 70910-900, Brazil
| | - Sonia Maria de Freitas
- Laboratory of Molecular Biophysics, Department of Cellular Biology/IB, University of Brasília, Brasilia-DF 70910-900, Brazil.
| | - Peter Roepstorff
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark.
| | - Wagner Fontes
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil.
| | - Mariana S Castro
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasilia, Brasilia-DF 70910-900, Brazil; Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology/IB, University of Brasilia, Brasilia-DF, Brazil.
| | - Osmindo Rodrigues Pires Júnior
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasilia, Brasilia-DF 70910-900, Brazil.
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