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The ultrahigh resolution crystal structure of ribonuclease A containing an isoaspartyl residue: hydration and sterochemical analysis.
Crystals of the deamidated form of bovine pancreatic ribonuclease which contains an isoaspartyl residue in position 67 diffract to 0. 87 A at 100 K. We have refined the crystallographic model usingExpand
Crystal structure of the collagen triple helix model [(Pro‐Pro‐Gly)10]3
The first report of the full‐length structure of the collagen‐like polypeptide [(Pro‐Pro‐Gly)10]3 is given. This structure was obtained from crystals grown in a microgravity environment, whichExpand
High-resolution structures of two complexes between thrombin and thrombin-binding aptamer shed light on the role of cations in the aptamer inhibitory activity
The G-quadruplex architecture is a peculiar structure adopted by guanine-rich oligonucleotidic sequences, and, in particular, by several aptamers, including the thrombin-binding aptamer (TBA) thatExpand
Bovine seminal ribonuclease: structure at 1.9 A resolution.
The crystal structure of bovine seminal ribonuclease, a homodimeric enzyme closely related to pancreatic ribonuclease, has been refined at a nominal resolution of 1.9 A employing data collected on anExpand
Crystal structure of the alcohol dehydrogenase from the hyperthermophilic archaeon Sulfolobus solfataricus at 1.85 A resolution.
The crystal structure of a medium-chain NAD(H)-dependent alcohol dehydrogenase (ADH) from an archaeon has been solved by multiwavelength anomalous diffraction, using a selenomethionine-substitutedExpand
Atomic resolution structures of ribonuclease A at six pH values.
The diffraction pattern of protein crystals extending to atomic resolution guarantees a very accurate picture of the molecular structure and enables the study of subtle phenomena related to proteinExpand
Protein titration in the crystal state.
Proteins are complex structures whose overall stability critically depends on a delicate balance of numerous interactions of similar strength, which are markedly influenced by their environment.Expand
Thrombin–aptamer recognition: a revealed ambiguity
Aptamers are structured oligonucleotides that recognize molecular targets and can function as direct protein inhibitors. The best-known example is the thrombin-binding aptamer, TBA, a single-strandedExpand
Mechanism of 2,5-Dioxopiperazine Formation
The cyclization of H-Ala-Pro-NH2 to the 2,5-dioxopiperazine (DKP) has been studied as a model for the spontaneous cleavage of the peptide bond with concomitant formation of 2,5-dioxopiperazine thatExpand
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