Purification and Characterization of Lectin from Lathyrus sativus |
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Authors: | Vibha Malhotra Sawhney I M Santha Michael P Timko S L Mehta |
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Institution: | 1. Division of Biochemistry, Indian Agricultural Research Institute, New Delhi, 110012, India
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Abstract: | Lectin has been isolated and purified from Lathyrus sativus using ammonium sulphate precipitation followed by affinity chromatography. The molecular weight as determined by HPLC was found to be 42kD. The lectin is a tetramer, consisting of two types of subunits of which the heavier subunit consists of 2 polypeptides of mol wt of about 21 kD and 16 kD while the smaller subunits consists of two polypeptides of about 5kD as revealed by SDS-PAGE. The most potent sugar inhibitor of the Lathyrus lectin was found to be α-methyl D-mannoside. The N-terminal amino acid sequence was similar to that of pea lectin sequence. |
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