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Wyszukujesz frazę "structural recognition" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Geophysical mapping for structural geology, prospecting and environment
Autorzy:
Gajewski, A.
Szczypa, S.
Wójcicki, A.
Powiązania:
https://bibliotekanauki.pl/articles/2065884.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geophysical mapping
structural recognition
geophysical prospecting
soil pollution
groundwater pollution
groundwater monitoring
Opis:
Applications of geophysical mapping to structural geology, prospecting and environment protection purposes are presented. Both classic and more advanced geophysical methods can be employed to enhance either regional, semi-detailed or detailed mapping of geological structures. In the case of regional and semi-detailed studies, gravity and magnetotelluric methods are supplementary to seismic, especially where significant screening and attenuating of seismic waves occur. Detailed investigations of environmental protection issues might include a wide range of geophysical methods, but in the case of investigation of groundwater pollution usually resistivity methods are applied. Examples of geophysical works performed by the PBG Geophysical Exploration Company illustrate these applications.
Źródło:
Przegląd Geologiczny; 2005, 53, 10/2; 973--976
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure-function relationship of serine protease-protein inhibitor interaction.
Autorzy:
Otlewski, Jacek
Jaskólski, Mariusz
Buczek, Olga
Cierpicki, Tomasz
Czapińska, Honorata
Krowarsch, Daniel
Smalas, Arne
Stachowiak, Damian
Szpineta, Agnieszka
Dadlez, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1044133.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
calorimetry
serine proteases
structural thermodynamics
protein inhibitor
protein-protein recognition
Opis:
We report our progress in understanding the structure-function relationship of the interaction between protein inhibitors and several serine proteases. Recently, we have determined high resolution solution structures of two inhibitors Apis mellifera chymotrypsin inhibitor-1 (AMCI-I) and Linum usitatissimum trypsin inhibitor (LUTI) in the free state and an ultra high resolution X-ray structure of BPTI. All three inhibitors, despite totally different scaffolds, contain a solvent exposed loop of similar conformation which is highly complementary to the enzyme active site. Isothermal calorimetry data show that the interaction between wild type BPTI and chymotrypsin is entropy driven and that the enthalpy component opposes complex formation. Our research is focused on extensive mutagenesis of the four positions from the protease binding loop of BPTI: P1, P1', P3, and P4. We mutated these residues to different amino acids and the variants were characterized by determination of the association constants, stability parameters and crystal structures of protease-inhibitor complexes. Accommodation of the P1 residue in the S1 pocket of four proteases: chymotrypsin, trypsin, neutrophil elastase and cathepsin G was probed with 18 P1 variants. High resolution X-ray structures of ten complexes between bovine trypsin and P1 variants of BPTI have been determined and compared with the cognate P1 Lys side chain. Mutations of the wild type Ala16 (P1') to larger side chains always caused a drop of the association constant. According to the crystal structure of the Leu16 BPTI-trypsin complex, introduction of the larger residue at the P1' position leads to steric conflicts in the vicinity of the mutation. Finally, mutations at the P4 site allowed an improvement of the association with several serine proteases involved in blood clotting. Conversely, introduction of Ser, Val, and Phe in place of Gly12 (P4) had invariably a destabilizing effect on the complex with these proteases.
Źródło:
Acta Biochimica Polonica; 2001, 48, 2; 419-428
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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