The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2007
Filed:
Sep. 24, 2003
Daniel J. Cosgrove, Pennsylvania Furnace, PA (US);
Simon Mcqueen-mason, Fulford, GB;
Mark J. Guiltinan, State College, PA (US);
Tatyana Shcherban, State College, PA (US);
Jun Shi, Wilmington, DE (US);
Daniel J. Cosgrove, Pennsylvania Furnace, PA (US);
Simon McQueen-Mason, Fulford, GB;
Mark J. Guiltinan, State College, PA (US);
Tatyana Shcherban, State College, PA (US);
Jun Shi, Wilmington, DE (US);
The Penn State Research Foundation, University Park, PA (US);
Abstract
This invention relates to a new class of proteins called expansins, and methods related thereto are presented. This class of proteins can be characterized as catalysts of the extension of plant cell walls and the weakening of the hydrogen bonds in pure cellulose. Two proteins have been isolated from washed wall fragments of cucumber hypocotyls, referred to as 'cucumber expansin-29' and 'cucumber expansin-30'. Moreover, three peptide fragments from the purified cEx-29 protein were sequenced, then oligonucleotide primers were designed to amplify a portion of the expansin cDNA using polymerase chain reaction with a cDNA template derived from cucumber seedlings, and then the PCR fragment was used to screen a cDNA library to identify full length clones. Another expansin protein has been isolated from oat coleoptiles (oat expansin oEx-29), while three additional expansin sequences have been identified inand an additional two in rice.