Abstract:
:The platelet glycoprotein (GP) Ib/IX/V is a hetero-oligomeric receptor complex for von Willebrand factor (vWF) and mediates platelet adhesion and aggregation under high shear stress conditions. It is composed of alpha and beta chain of GP Ib, GP IX, AND and GP V. To establish transgenic mice carrying human GP Ib alpha, we injected into mouse zygotes a 6 kb DNA fragment containing human GP Ib alpha gene that included entire coding sequence and putative promoter region. One hundred and thirteen offsprings were screened, and only one was found to express human GP Ib alpha protein and has passed the human GP Ib alpha gene as well as the expression of the gene to next generation. The expression of human GP Ib alpha in transgenic mice was limited to platelets and megakaryocytes. Glycocalicin, a proteolytic fragment of human GP Ib alpha found in normal human plasma, was not detected in transgenic mouse plasma. Human vWF in the presence of ristocetin supported agglutination of transgenic mouse platelets, but not of control mouse platelets.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kitaguchi T,Murata M,Kuramochi T,Kobayashi K,Ito M,Ueyama Y,Nomura T,Hikichi K,Miyakawa Y,Handa M,Hiraoka Y,Aiso S,Ikeda Ydoi
10.1006/bbrc.1996.0420subject
Has Abstractpub_date
1996-03-18 00:00:00pages
418-24issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(96)90420-9journal_volume
220pub_type
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