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:
Oct. 27, 1998
Filed:
Oct. 28, 1996
Takeshi Yamamoto, Kanagawa, JP;
Motoko Nakashizuka, Kanagawa, JP;
Ichiro Terada, Osaka, JP;
Hisashi Kodama, Tokyo, JP;
Japan Tobacco Inc., Tokyo, JP;
Abstract
A .beta.-galactoside-.alpha.-2,6-sialyltransferase derived from a microorganism belonging to the genus Photobacterium has ben disclosed, having the following physicochemical properties: (1) action and specificity: transferring sialic acid from cytidine monophosphate-sialic acid to the 6-position of a galactose residue in a sugar chain of a glycoconjugate or in a free sugar chain, or to the 6-position of a monosaccharide having a hydroxyl group on carbon at the 6-position and being capable of forming a glycoconjugate. (2) optimum pH: 5 to 6; (3) optimum temperature: 30.degree. C.; and (4) molecular weight: 64,000.+-.5,000 (determined by gel filtration).