Inhibition of HIV-1 replication by balsamin, a ribosome inactivating protein of Momordica balsamina. [PDF]
Ribosome-inactivating proteins (RIPs) are endowed with several medicinal properties, including antiviral activity. We demonstrate here that the recently identified type I RIP from Momordica balsamina also possesses antiviral activity, as determined by ...
Inderdeep Kaur +5 more
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Ricin is a type 2 ribosome-inactivating protein (RIP), containing a catalytic A chain and a lectin-like B chain. It inhibits protein synthesis by depurinating the N-glycosidic bond at α-sarcin/ricin loop (SRL) of the 28S rRNA, which thereby prevents the ...
Wei-Wei Shi +5 more
doaj +3 more sources
Pokeweed Antiviral Protein, a Ribosome Inactivating Protein: Activity, Inhibition and Prospects
Viruses employ an array of elaborate strategies to overcome plant defense mechanisms and must adapt to the requirements of the host translational systems. Pokeweed antiviral protein (PAP) from Phytolacca americana is a ribosome inactivating protein (RIP)
Artem V. Domashevskiy, Dixie J. Goss
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Maize ribosome-inactivating protein uses Lys158-lys161 to interact with ribosomal protein P2 and the strength of interaction is correlated to the biological activities. [PDF]
Ribosome-inactivating proteins (RIPs) inactivate prokaryotic or eukaryotic ribosomes by removing a single adenine in the large ribosomal RNA. Here we show maize RIP (MOD), an atypical RIP with an internal inactivation loop, interacts with the ribosomal ...
Yuen-Ting Wong +5 more
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A Sixty-Year Research and Development of Trichosanthin, a Ribosome-Inactivating Protein
Tian Hua Fen, a herbal powder extract that contains trichosanthin (TCS), was used as an abortifacient in traditional Chinese medicine. In 1972, TCS was purified to alleviate the side effects.
Jia-Qi Lu, Kam-Bo Wong, Pang-Chui Shaw
doaj +1 more source
Extensive evolution of cereal ribosome-inactivating proteins translates into unique structural features, activation mechanisms, and physiological roles [PDF]
Ribosome-inactivating proteins (RIPs) are a class of cytotoxic enzymes that can depurinate rRNAs thereby inhibiting protein translation. Although these proteins have also been detected in bacteria, fungi, and even some insects, they are especially ...
De Zaeytijd, Jeroen, Van Damme, Els
core +2 more sources
Ribosome inactivating proteins (RIPs) inhibit protein synthesis by depurinating the large ribosomal RNA and some are found to possess anti-human immunodeficiency virus (HIV) activity. Maize ribosome inactivating protein (RIP) has an internal inactivation
Rui-Rui Wang +13 more
doaj +1 more source
Evolution of plant ribosome-inactivating proteins [PDF]
This contribution presents an updated analysis of the evolution of ribosome-inactivating proteins (RIPs) in plants. All evidence suggests that an ancestor of modern seed plants developed the RIP domain at least 300 million years ago.
Peumans, Willy J, Van Damme, Els
core +1 more source
Functional analysis of RIP toxins from the Drosophila endosymbiont Spiroplasma poulsonii
Background Insects frequently live in close relationship with symbiotic bacteria that carry out beneficial functions for their host, like protection against parasites and viruses. However, in some cases, the mutualistic nature of such associations is put
Mario Gonzalo Garcia-Arraez +3 more
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Winter Aconite (Eranthis hyemalis) Lectin as a cytotoxic effector in the lifecycle of Caenorhabditis elegans [PDF]
The lectin found in the tubers of the Winter Aconite (Eranthis hyemalis) plant is an N-acetyl-D-galactosamine specific Type II Ribosome Inactivating Protein (RIP); Type II RIPs have shown anti-cancer properties, and hence have potential as therapeutic ...
Marie-Therese McConnell +4 more
doaj +2 more sources

