Method of reducing glycosylation of proteins, processes and proteins thereof

The disclosure relates to method of reducing O-glycosylation levels of the insulin or insulin analog precursor molecule produced by Pichia sp. The present disclosure provides genetically engineered knock-out strains of methylotrophic yeast including Pichia and especially Pichia pastoris by disruptio...

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Bibliographische Detailangaben
Hauptverfasser:	KANOJIA KOMAL, PATALE MUKESH BABUAPPA, DAVE NITESH, VENKATESAN KRISHNAMURTHY, GOVINDAPPA NAGARAJ, TIWARI SANJAY, SASTRY KEDARNATH N, IYER HARISH
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The disclosure relates to method of reducing O-glycosylation levels of the insulin or insulin analog precursor molecule produced by Pichia sp. The present disclosure provides genetically engineered knock-out strains of methylotrophic yeast including Pichia and especially Pichia pastoris by disruption of Protein mannosyl transferase (PMT) genes and rendering them capable of producing heterologous proteins with reduced glycosylation. Vectors, which comprise coding sequences for PMT1, PMT2, PMT4, PMT5, and PMT6 genes, for transforming methylotrophic yeasts are contemplated by the present disclosure. PMT inactivated strains of this disclosure have been deposited at MTCC, Chandigarh. The strains are PMT1/GS115 (MTCC 5515), PMT4/GS115 (MTCC 5516), PMT5/GS115 (MTCC 5517) and PMT6/GS115 (MTCC 5518).