Investigation of the cytotoxic fractions of the ethyl acetate extract of the fermentation broth of the tunicate-derived Aspergillus sp. DY001 afforded two new dipeptides, asperopiperazines A and B (1 and 2), along with the previously reported compounds (+
Diaa T. A. Youssef +2 more
doaj +1 more source
Quantum mechanical calculation of the effects of stiff and rigid constraints in the conformational equilibrium of the Alanine dipeptide [PDF]
If constraints are imposed on a macromolecule, two inequivalent classical models may be used: the stiff and the rigid one. This work studies the effects of such constraints on the Conformational Equilibrium Distribution (CED) of the model dipeptide HCO-L-
Abagyan +95 more
core +3 more sources
Self-assembling dipeptide antibacterial nanostructures with membrane disrupting activity. [PDF]
Peptide-based supramolecular assemblies are a promising class of nanomaterials with important biomedical applications, specifically in drug delivery and tissue regeneration.
Adler-Abramovich, Lihi +10 more
core +3 more sources
The tRNA-Dependent Biosynthesis of Modified Cyclic Dipeptides [PDF]
In recent years it has become apparent that aminoacyl-tRNAs are not only crucial components involved in protein biosynthesis, but are also used as substrates and amino acid donors in a variety of other important cellular processes, ranging from bacterial cell wall biosynthesis and lipid modification to protein turnover and secondary metabolite assembly.
Giessen, Tobias W., Marahiel, Mohamed A.
openaire +2 more sources
Trypsin inhibition by macrocyclic and open-chain variants of the squash inhibitor MCoTI-II [PDF]
MCoTl-I and MCoTl-II from the seeds of Momordica cochinchinensis are inhibitors of trypsin-like proteases and the only known members of the large family of squash inhibitors that are cyclic and contain an additional loop connecting the amino- and the ...
Avrutina, Olga +6 more
core +1 more source
Exploring the ring-closing metathesis for the construction of the solomonamide macrocyclic core: identification of bioactive precursors [PDF]
New synthetic strategies directed toward the novel cyclopeptides solomonamides have been explored utilizing an olefin metathesis as the key reaction.
Carrillo Fernández, Paloma +7 more
core +3 more sources
A series of linear and macrocyclic peptides 3–12 were synthesized using 3,5-pyridinedicarboxylic acid (1) as starting material and screened for their antimicrobial, anti-inflammatory and anticancer activities.
Suzan Khayyat, Abd El-Galil Amr
doaj +1 more source
Stereoselective synthesis of α-amino-C-phosphinic acids and derivatives [PDF]
α-Amino-C-phosphinic acids and derivatives are an important group of compounds of synthetic and medicinal interest and particular attention has been dedicated to their stereoselective synthesis in recent years. Among these, phosphinic pseudopeptides have
Cativiela, Carlos +3 more
core +3 more sources
Protein synthesis with conformationally constrained cyclic dipeptides
We have synthesized several conformationally constrained dipeptide analogues as possible substrates for incorporation into proteins. These have included three cyclic dipeptides formed from Boc derivatives of 2,4-diaminobutyric acid, ornithine and lysine, having 5-, 6-, and 7-membered lactam rings, respectively.
Chao, Zhang +3 more
openaire +3 more sources
Three previously undescribed metabolites from Cordyceps cicadae JXCH-1, an entomopathogenic fungus
Three previously undescribed compounds, cordycicadione (1), cordycicadin F (2), and 7-hydroxybassiatin (3), were isolated from the cultures of Cordyceps cicadae JXCH1, an entomopathogenic fungus.
Jing Fan +3 more
doaj +1 more source

