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1. 1. Exploring molecular interactions between polypeptide conjugates and protein targets : Manipulating affinity by chemical modifications

   Författare :Aleksandra Balliu; Lars Baltzer; Oliver Seitz; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; polypeptide conjugates; protein targets; molecular recognition; affinity enhancement; conjugation;

   Sammanfattning : In this thesis molecular interactions between polypeptide conjugates and protein targets were investigated. Polypeptides were derivatized with small organic molecules, peptides and oligonucleotides. New strategies were developed with the aim to increase affinities for proteins of biological interest. LÄS MER

3. 2. Structural and thermodynamical basis for molecular recognition between engineered binding proteins

   Författare :Jakob Dogan; Per-Åke Nygren; John E. Ladbury; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; protein structure; induced fit; binding thermodynamics; NMR spectroscopy; protein engineering; protein-protein interactions; protein stability; calorimetry; Structural biochemistry; Strukturbiokemi;

   Sammanfattning : The structural determination of interacting proteins, both as individual proteins and in their complex, complemented by thermodynamical studies are vital in order to gain in-depth insights of the phenomena leading to the highly selective protein-protein interactions characteristic of numerous life processes. This thesis describes an investigation of the structural and thermodynamical basis for molecular recognition in two different protein-protein complexes, formed between so-called affibody proteins and their respective targets. LÄS MER

4. 3. Systems biology of protein synthesis and secretion in yeast

   Författare :Qi Qi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; recombinant protein production; protein synthesis; multi-omics analysis; protein secretion; genome-scale modeling;

   Sammanfattning : Protein synthesis and secretion is a vital process to maintain cell function. As it demands numerous building blocks, cofactors and chaperones generated from metabolism and translation, the process is intertwined with metabolic and regulatory networks. LÄS MER

5. 4. An evolutionary basis for protein design and structure prediction

   Författare :Christoffer Norn; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein evolution; Biophysics; Protein design; Protein structure prediction;

   Sammanfattning : The sequence diversity of protein families is a result of the biophysical selection pressures that shaped their evolutionary history. Among the dominant pressures is selection for protein thermostability, which in itself is an attractive target in protein engineering because of its importance for various biopharmaceutical properties, the performance of industrial enzymes, and the ability to design new protein functions. LÄS MER

7. 5. Cotranslational protein biogenesis in Escherichia coli monitored by force profile analysis

   Författare :Felix Nicolaus; Gunnar von Heijne; Ross Dalbey; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Escherichia coli; cotranslational protein biogenesis; membrane protein; soluble protein; transmembrane helices; force profile analysis; arrest peptide; biokemi; Biochemistry;

   Sammanfattning : Proteins are a diverse class of biomolecules that carry out many essential functions across all organisms. They can either be found in aqueous compartments or embedded in biological membranes of the cell and are called soluble or membrane proteins, respectively. LÄS MER