Sökning: "low molecular weight compounds"

Visar resultat 11 - 15 av 98 avhandlingar innehållade orden low molecular weight compounds.

1. 11. Functions of REP27 and the low molecular weight proteins PsbX and PsbW in repair and assembly of photosystem II

   Författare :Jose Gines Garcia Cerdan; Wolfgang Schröder; Eva-Mari Aro; Umeå universitet; []
   Nyckelord :Photosynthesis; photosystem II reaction center; PSII-LHCII supercomplex; antisense plant; T-DNA knockout plant; auxiliary protein; Biochemistry; biokemi;

   Sammanfattning :     Oxygenic photosynthesis is the major producer of both oxygen and organic compounds on earth and takes place in plants, green algae and cyanobacteria. The thylakoid membranes are the site of the photosynthetic light reactions that involve the concerted action of four major protein complexes known as photosystem II (PSII), cytochrome b6f complex, ATP synthase and photosystem I (PSI). LÄS MER

3. 12. Relationship between chemical structure and airway sensitizing potential for organic acid anhydrides : an animal model

   Författare :Xing-Dong Zhang; Avdelningen för arbets- och miljömedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sensitization; immunization; predictive testing; low-molecular-weight chemicals; chemical respiratory allergy; hypersensitivity; rats; guinea pigs; structure-activity-relationship; occupational asthma; organic acid anhydrides; IgG1; IgE; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

   Sammanfattning : Oranic acid anhydrides (OAAs) are important reactive, low-molecular-weight industrial chemicals which induce allergic rhinitis and asthma in exposed subjects. Specific IgE has been demonstrated in a large proportion of OAA-exposed workers. LÄS MER

4. 13. New approaches to concentration, desalting and separation of biopolymers in capillary electrophoresis

   Författare :Rong Zhang; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

   Sammanfattning : In the first part of the thesis five new on-tube methods for concentration and desalting ofampholytes, such as peptides and proteins, are described in Papers I and II. The methods arebased on the fact that electrophoretic migration velocities decrease upon a decrease in theabsolute value of the zeta potential of a solute and the pore size of the electrophoresis mediumand upon an increase in the cross section of the electrophoresis chamber, the viscosity and theelectrical conductivity of the electrophoresis medium. LÄS MER

5. 14. Molecular mechanisms of growth suppression by pharmacologically activated p53

   Författare :Elisabeth Hedström; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The tumor suppressor p53 is a transcription factor that is crucial for protecting cells from cancer development. The importance of p53 tumor suppression function is highlighted by the fact that the p53 pathway is inactivated in most, if not all cancers. LÄS MER

7. 15. Molecular mechanisms of estrogen action in relation to metabolic disease

   Författare :Lovisa Lundholm; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Estrogens have multiple effects on the body. Most studied are the effects on female reproduction. In this thesis, we have focused on the metabolic effects of estrogens. Estrogen treatment decreases adipose tissue mass and has anti-diabetic effects in humans and mice. LÄS MER