Sökning: "polysaccharide biosynthesis"

Visar resultat 21 - 25 av 38 avhandlingar innehållade orden polysaccharide biosynthesis.

  1. 21. Formation of Iduronic Acid during Chondroitin/Dermatan Sulfate Biosynthesis

    Författare :Emil Tykesson; Lungbiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; GLYCOSAMINOGLYCAN; CHONDROITIN; DERMATAN; EPIMERASE; SULFOTRANSFERASE; GLYCOSAMINOGLYCAN; CHONDROITIN SULFATE; DERMATAN SULFATE; EPIMERASE; SULFOTRANSFERASE;

    Sammanfattning : All animals and some bacteria can synthesize linear polysaccharides with a backbone of repeating disaccharideunits, called glycosaminoglycans (GAGs). The GAGs are either attached to a protein core, as in proteoglycans (PGs), or exist as free polymer chains, as in hyaluronan. LÄS MER

  3. 22. Xylan biosynthesis and modification : characterisation of a glycosyltransferase and a glycoside hydrolase in hybrid aspen

    Författare :Christine Ratke; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Wood is an important renewable material used by humans for a variety of downstream applications. The basic subcellular structure in wood is the cell wall, mainly consisting of the cross-linked polymers cellulose, hemicellulose, and lignin. LÄS MER

  4. 23. Cellular design of heparan sulfate : The NDST enzymes and their regulation

    Författare :Pernilla Carlsson; Lena Kjellén; Tarja Kinnunen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; heparan sulfate; heparin; proteoglycan; NDST; PAPS; Golgi; Cell and molecular biology; Cell- och molekylärbiologi;

    Sammanfattning : Heparan sulfate proteoglycans are proteins with long, unbranched heparan sulfate (HS) polysaccharide chains attached to them. They are found on cell surfaces and in basement membranes where they exert their action by interacting with a wide range of enzymes and signaling molecules and are thereby involved in a range of various processes both during embryonic development and in adult physiology. LÄS MER

  5. 24. Synthesis of glucuronoxylan in higher and lower plants : is there conservation of the enzymatic machinery?

    Författare :Emma Hörnblad; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The hemicellulose glucuronoxylan (GX) is the second most abundant polysaccharide after cellulose in the secondary cell walls of angiosperms and contributes significantly to the properties of wood as raw materials. Despite this, very little is known about the biosynthesis of hemicellulose. LÄS MER

  7. 25. Structure and functions of heparan sulfate/heparin – Importance of glucuronyl C5-epimerase and heparanase

    Författare :Juan Jia; Jin-Ping Li; Ulf Lindahl; Hiroshi Nakato; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Heparan sulfate (HS) and heparin are linear polysaccharide chains covalently O-linked to serine residues within the core proteins, so called HS proteoglycans (PGs) or heparin PG. HSPGs are produced by almost all mammalian cells and known to play important roles in developmental processes, physiological and pathological conditions; whereas heparin PG is produced by mast cells and best known as an anticoagulant in clinic. LÄS MER