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A discrete genetic locus confers select Bacteriodetes with a niche role in xyloglucan metabolism in the human gut
KTH, Skolan för bioteknologi (BIO), Glykovetenskap.
KTH, Skolan för bioteknologi (BIO), Glykovetenskap.
KTH, Skolan för bioteknologi (BIO), Glykovetenskap.ORCID-id: 0000-0002-3372-8773
KTH, Skolan för bioteknologi (BIO), Glykovetenskap.
Visa övriga samt affilieringar
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Nationell ämneskategori
Biokemi och molekylärbiologi
Identifikatorer
URN: urn:nbn:se:kth:diva-126962OAI: oai:DiVA.org:kth-126962DiVA, id: diva2:642923
Anmärkning

QS 2013

Tillgänglig från: 2013-08-23 Skapad: 2013-08-23 Senast uppdaterad: 2013-08-26Bibliografiskt granskad
Ingår i avhandling
1. Strategies for the Discovery of Carbohydrate-Active Enzymes from Environmental Bacteria
Öppna denna publikation i ny flik eller fönster >>Strategies for the Discovery of Carbohydrate-Active Enzymes from Environmental Bacteria
2013 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The focus of this thesis is a comparative study of approaches in discovery of carbohydrate-active enzymes (CAZymes). CAZymes synthesise, bind to, and degrade all the multitude of carbohydrates found in nature. As such, when aiming for sustainable methods to degrade plant biomass for the generation of biofuels, for which there is a strong drive in society, CAZymes are a natural source of environmentally friendly molecular tools.

In nature, microorganisms are the principal degraders of carbohydrates. Not only do they degrade plant matter in forests and aquatic habitats, but also break down the majority of carbohydrates ingested by animals. These symbiotic microorganisms, known as the microbiota, reside in animal digestive tracts in immense quantities, where one of the key nutrient sources is complex carbohydrates. Thus, microorganisms are a plentiful source of CAZymes, and strategies in the discovery of new enzymes from bacterial sources have been the basis for the work presented here, combined with biochemical characterisation of several enzymes.

Novel enzymatic activities for the glycoside hydrolase family 31 have been described as a result of the initial projects of the thesis. These later evolved into projects studying bacterial multi-gene systems for the partial or complete degradation of the heterogeneous plant polysaccharide xyloglucan. These systems contain, in addition to various hydrolytic CAZymes, necessary binding-, transport-, and regulatory proteins. The results presented here show, in detail, how very complex carbohydrates can efficiently be degraded by bacterial enzymes of industrial relevance.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH Royal Institute of Technology, 2013. s. viii, 82
Serie
TRITA-BIO-Report, ISSN 1654-2312 ; 2013:13
Nyckelord
CAZyme discovery, xyloglucan, polysaccharide-utilisation locus, microbiota, α-xylosidase, GH31, transglucosidase, human gut
Nationell ämneskategori
Biokemi och molekylärbiologi
Forskningsämne
SRA - Molekylär biovetenskap
Identifikatorer
urn:nbn:se:kth:diva-126956 (URN)978-91-7501-834-8 (ISBN)
Disputation
2013-09-13, Oskar Klein Auditoriet, FR4, 10:00, Albanova Universitetscentrum, Roslagstullsbacken 21, Stockholm, 15:00 (Engelska)
Opponent
Handledare
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QC 20130826

Tillgänglig från: 2013-08-26 Skapad: 2013-08-23 Senast uppdaterad: 2016-01-26Bibliografiskt granskad

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McKee, Laurens S.

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Larsbrink, JohanSpadiut, OliverMcKee, Laurens S.Klinter, StefanNilsson Cederholm, StefanBrumer, Harry
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Glykovetenskap
Biokemi och molekylärbiologi

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Totalt: 201 träffar
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