http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2534360-A1
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a933a0dd561e3e50b278738704d5c6e6 |
classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K2317-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K2319-00 |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-6849 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K16-2809 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-6829 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K1-18 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07K16-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-48 |
filingDate | 2004-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_526785243330f7541b22c055cdae3847 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7df9b7df1d59938fe21a3431cdf2e0ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a61893284d9d5bfed540356d1b87179d |
publicationDate | 2005-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CA-2534360-A1 |
titleOfInvention | Methods for expression and purification of immunotoxins |
abstract | In one aspect the present invention relates to a method of expressing an immunotoxin in Pichia pastoris strain mutated to toxin resistance comprising a) growing the Pichia pastoris in a growth medium comprising an enzymatic digest of protein and yeast extract and maintaing a dissolved oxygen concentration at 40% and above; and b) performing methanol induction with a limited methanol feed of 0.5-0.75 ml/min/ 10L of initial volume during induction along with a continuous inusion of yeast extract at a temperature below 17.5 ~C., antifoaming agent supplied up to 0.07%, agitation reduced to 400 RPM, and the induction phase extended out to 163 h. In another aspect, the present invention relates to a method of purifying a non~glycosylated immunotoxin comprising a) loading a solution containing the non~glycosylated immunotoxin onto a hydrophobic interaction column; b) obtaining a first non-glycosylated immunotoxin containing eluant from the hydrophobic interaction column; c) loading the non-glycosylated immunotoxin containing eluant from step (b) onto an anion exchange column; d) obtaining a second non-glycosylated immunotoxin containing eluant from the anion exchange column by eluting the non-glycosylated immunotoxin with a sodium borate solution; e) diluting the concentration of sodium borate in the second non-glycosylated immunotoxin containing eluant from step (d) to about 50 mM or less; f) concentrating the diluted non-glycosylated immunotoxin containing eluant from step (e) over an anion exchange column; and g) obtaining a purified non-glycosylated immunotoxin from the anion exchange column. |
priorityDate | 2003-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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