학술논문

Conjugating Hemoglobin and Albumin by Strain-Promoted Azide-Alkyne Cycloaddition.
Document Type
Academic Journal
Author
Lee C; University of Toronto - St George Campus, Chemistry, CANADA.; Chung HW; University of Toronto - St George Campus, Chemistry, CANADA.; Kluger R; University of Toronto, Chemistry, 80 St. George Street, M5S 3H6, Toronto, CANADA.
Source
Publisher: Wiley-VCH Verlag Country of Publication: Germany NLM ID: 100937360 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1439-7633 (Electronic) Linking ISSN: 14394227 NLM ISO Abbreviation: Chembiochem Subsets: MEDLINE
Subject
Language
English
Abstract
A one-to-one conjugate of cross-linked human hemoglobin and human serum albumin results from a strain-promoted azide-alkyne cycloaddition (SPAAC) of the modified proteins. Additions of a strained alkyne-substituted maleimide to the Cys-34 thiol of human serum albumin and an azide-containing cross-link between the amino groups of each b-unit at Lys-82 of human hemoglobin provide sites for coupling by the SPAAC process. The coupled hemoglobin-albumin conjugate can be readily purified from the unreacted hemoglobin. The oxygen binding properties of this two-protein conjugate demonstrate an oxygen affinity and binding cooperativity suitable as an acellular oxygen carrier.
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