US 2010/0143936 A1 · Novel Specific Arabinose Transporter from the Yeast Pichia Stipitis, and Uses Thereof

Abstract

The present invention relates to a polypeptide which has a novel specific arabinose transporter function as well as to nucleic acids coding therefore. The invention further relates to host cells, in particular modified yeast strains which contain the coding nucleic acids and express the polypeptide and functionally integrate it into the plasma membrane and are thus able to absorb L-arabinose. When using modified host cells which express additional proteins of the arabinose metabolic pathway, arabinose can be fermented by these cells, in particular into ethanol. The present invention is therefore relevant, inter alia, in connection with the production of biochemicals from biomass, such as bioethanol for example.

Claims26

Dependent claims

A polypeptide, selected from the group of

a) a polypeptide which is at least 70% identical to the amino acid sequence according to SEQ ID NO:
1 and has an in vitro and/or in vivo pentose transport function,
b) a naturally occurring variant of a polypeptide comprising the amino acid sequence according to SEQ ID NO:1, which has an in vitro and/or in vivo pentose transport function,
c) a polypeptide which is identical to the amino acid sequence according to SEQ ID NO:
1 and has an in vitro and/or in vivo pentose transport function, and
d) a fragment of the polypeptide of a, b, or c, comprising a fragment of at least 100 continuous amino acids according to SEQ ID NO:1.

3 more elements

Dependencies are inferred from the claim text.

Novel Specific Arabinose Transporter from the Yeast Pichia Stipitis, and Uses Thereof

Life of this patent

Novel Specific Arabinose Transporter from the Yeast Pichia Stipitis, and Uses Thereof

Life of this patent

Abstract

Claims26