New single-chain (type 1) ribosome-inactivating proteins (RIPs) were isolated from the seeds of Basella rubra L. (two proteins) and from the leaves of Bougainvillea spectabilis Willd. (one protein). These RIPs inhibit protein synthesis both in a cell-free system, with an IC50 (concentration causing
Four neutral polysaccharides (BRN-1, BRN-2, BRN-3 and BRN-4) were isolated from the hot water extract of the aerial part of Basella rubra L. They were found to consist of a large amount of D-galactose (81.0-92.4%) and small amounts of L-arabinose (5.4-7.8%), D-glucose (2.2-11.0%) and mannose
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