Search for dissertations about: "Protein family expansion."

Showing result 16 - 20 of 25 swedish dissertations containing the words Protein family expansion..

  2. 16. Functional characterization of the pointed cotyledon subclass of HDZip genes in Arabidopsis thaliana

    Author : Johannes Hanson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; fysiologisk botanik; Physiological Botany;

    Abstract : Genes encoding homeodomain leucine zipper, HDZip, transcription factors constitute a large gene family in Arabidopsis thaliana. In this thesis the isolation and characterization of four HDZip genes (ATHB3, -13, -20 and -23) is described. These genes are similar in sequence and form a distinct subclass within the HDZip gene family. READ MORE

  4. 17. Mechanisms of survival and maintenance of Hematopoietic Stem Cells and Multipotent Progenitor Cells

    Author : Richard Karlsson; Institutionen för translationell medicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; extracellulära vätskor; Hematologi; extracellular fluids; Haematology; hypoxia.; forkhead; Akt PKB; Bcl-2; apoptosis; Flt3; FL; c-kit; KL; cytokines; Hematopoiesis; progenitor;

    Abstract : Hematopoietic stem cells and progenitor cells are maintained in the bone marrow microenvironment, where factors including soluble and membrane-bound cytokines influence the processes of self-renewal, proliferation and differentiation. Two nonreduntant cytokines with effects on hematopoiesis, Kit Ligand (KL) and Flt3 Ligand (FL), signal via related tyrosine kinase receptors, c-kit and Flt3. READ MORE

  5. 18. Identification of downstream targets of Alk signaling in Drosophila melanogaster

    Author : Gaurav Varshney; Ruth Palmer; Udo Hacker; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drosophila; Alk; Jeb; visceral muscles; somatic muscles; Delilah; Goliath; Hand; Molecular biology; Molekylärbiologi;

    Abstract : The Drosophila gene Anaplastic lymphoma kinase (Alk) is homologous to mammalian ALK, a member of the Alk/Ltk family of receptor tyrosine kinases. In Drosophila Alk is crucial for development of the embryonic visceral mesoderm, where it is the receptor for Jelly Belly (Jeb) ligand. READ MORE

  6. 19. The role and synthesis of β1,3-galactans in plant cell wall formation

    Author : Petrus Nibbering; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The plant cell wall associated hydroxyproline rich glycoproteins (HRGPs) play an important role in cell wall formation, but the mechanisms are not well understood. The HRGP family consists of the heavily glycosylated arabinogalactan proteins (AGPs) and the moderately glycosylated extensins (EXTs) and proline rich proteins (PRPs). READ MORE

  7. 20. Non-enveloped virus infection probed with host cellular molecules : a structural study

    Author : Li Xing; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Early steps in virus replication require binding of the virus to its target cell, entry into the cell, and delivery of the viral genome into the cell in order to gain access to the cellular macromolecular synthesis machinery. This infectious process can only be initiated if the virus successfully attaches to a specific receptor on the plasma membrane of the target cell. READ MORE