Molecules 2011, 16(6), 5087-5103; doi:10.3390/molecules16065087
Article

Crystallization and Characterization of an Inflammatory Lectin Purified from the Seeds of Dioclea wilsonii

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Received: 14 April 2011; in revised form: 7 June 2011 / Accepted: 17 June 2011 / Published: 20 June 2011
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: DwL, a lectin extracted from the seeds of Dioclea wilsonii, is a metalloprotein with strong agglutinating activity against rabbit and ABO erythrocytes, inhibited by glucose and mannose. DwL was purified by affinity chromatography on a Sephadex G-50 column and ion exchange chromatography on a HiTrap SP XL column. SDS-PAGE revealed three electrophoretic bands corresponding to the α (25,634 ± 2 Da), β (12,873 ± 2 Da) and γ (12,779 ± 2 Da) chains. Protein sequencing was done by Tandem Mass Spectrometry. The primary sequence featured 237 amino acids and was highly homologous to other reported Diocleinae lectins. A complete X-ray dataset was collected at 2.0 Å for X-Man-complexed DWL crystals produced by the vapor diffusion method. The crystals were orthorhombic and belonged to the space group I222, with the unit-cell parameters a = 59.6, b = 67.9 and c = 109.0 Å. DWL differed in potency from other ConA-like lectins and was found to induce neutrophil migration in rats, making it particularly useful in structural/functional studies of this class of proteins.
Keywords: crystallization; Dioclea wilsonii; inflammation; lectin; tandem mass spectrometry
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MDPI and ACS Style

Rangel, T.B.A.; Assreuy, A.M.S.; Pires, A.F.; Carvalho, A.U.; Benevides, R.G.; Simões, R.C.; Silva, H.C.; Bezerra, M.J.B.; Nascimento, A.S.F.; Nascimento, K.S.; Nagano, C.S.; Sampaio, A.H.; Delatorre, P.; Rocha, B.A.M.; Fernandes, P.M.B.; Cavada, B.S. Crystallization and Characterization of an Inflammatory Lectin Purified from the Seeds of Dioclea wilsonii. Molecules 2011, 16, 5087-5103.

AMA Style

Rangel TBA, Assreuy AMS, Pires AF, Carvalho AU, Benevides RG, Simões RC, Silva HC, Bezerra MJB, Nascimento ASF, Nascimento KS, Nagano CS, Sampaio AH, Delatorre P, Rocha BAM, Fernandes PMB, Cavada BS. Crystallization and Characterization of an Inflammatory Lectin Purified from the Seeds of Dioclea wilsonii. Molecules. 2011; 16(6):5087-5103.

Chicago/Turabian Style

Rangel, Thaiz Batista Azevedo; Assreuy, Ana Maria Sampaio; Pires, Alana de Freitas; Carvalho, Amanda Uliana de; Benevides, Raquel Guimarães; Simões, Rafael da Conceição; Silva, Helton Colares da; Bezerra, Maria Júlia Barbosa; Nascimento, Antonia Samia Fernandes do; Nascimento, Kyria Santiago do; Nagano, Celso Shiniti; Sampaio, Alexandre Holanda; Delatorre, Plínio; Rocha, Bruno Anderson Matias da; Fernandes, Patricia Machado Bueno; Cavada, Benildo Sousa. 2011. "Crystallization and Characterization of an Inflammatory Lectin Purified from the Seeds of Dioclea wilsonii." Molecules 16, no. 6: 5087-5103.

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