We report a high-resolution gas-phase UPS spectrum of zinc phthalocyanine (ZnPc) together with a detailed analysis of the vibronic structure of the first ionization band, showing that presents the lowest value of the intramolecular reorganization energy experimentally reported for a molecular organic semiconductor.

Broad base genetic diversity is essential for a sustainable crop yield to provide tolerance against biotic and abiotic stresses. In Pakistan, rice ranked second as staple food cultivated under different climatic zones. However, very little known in terms of diversity. The present research was performed evaluate the among 12 local varieties by using 5 Simple sequence repeats (SSR) markers. Furth...

Local structures around metal atoms in Hi and Zn substituted 132-hydroxy-bacteriochlorophyll a (Ni-HOB, and Zn-HOB) with and without insertion into the accessory bacteriochlorophyll a (BChla) sites in Rhodobacter sphaeroides photosynthetic reaction centers (RC) are studied using X-ray absorption spectroscopy. The penta-coordination of Ni-HOB and Zn-HOB in the RC is similar to that of BChl a in ...

INTRODUCTION .......................................................................... DNA SUPERCOILING AND TOPOISOMERASES ............................................. CONTROL OF TOPOISOMERASE GENE EXPRESSION ...................................... ROLE OF TOPOISOMERASES AND SUPERCOILING IN DNA REPLICATION................. Elongation Phase of Replication ..........................................

Activation of factor VIII (FVIII) by thrombin plays a fundamental role in the amplification of the coagulation cascade and takes place through specific proteolytic cleavages at Arg(372), Arg(740) and Arg(1689). Full FVIII activation requires cleavage at Arg(372), a process involving the alpha-thrombin exosite-II; referred to as heparin-binding site (HBS). The present study was aimed at investig...

The crystal structure of a putative dipeptidase (Phdpd) from Pyrococcus horikoshii OT3 was solved using X-ray data at 2.4 A resolution. The protein is folded into two distinct entities. The N-terminal domain consists of the general topology of the alpha/beta fold, and the C-terminal domain consists of five long mixed strands, four helices, and two 3(10) helices. The structure of Phdpd is quite ...

Corresponding Author Tel: +385 51 651 150 Fax: +385 51 675 699 E-mail: [email protected] BACKGROUND: Peptidoglycan monomer (PGM), which was originally prepared by biosynthesis from culture fluids of penicillin-treated Brevibacterium divaricatum, is an immunostimulator, the activities of which might be improved by addition of zinc (Zn) to the basic molecule. Methods: To test the possible cytotoxic...

The monocomponent adsorption process of Cu(II) ions in synthesized industrial wastewater were investigated using activated carbons (BACs) derived from sugarcane bagasse as the precursor. Batch studies done by treating precursor with H3PO4 (BAC-P) and ZnCl2 (BAC-Zn) order to observe effects experimental variables such contact time, pH solution, adsorbent dose. Langmuir isotherm model excellently...