Dietrich Brandenburg

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TIRF imaging of docking and fusion of single insulin granule motion in primary rat pancreatic β-cells: different behaviour of granule motion between normal and Goto–Kakizaki diabetic rat β-cells Molecular evolution and structure–function relationships of crotoxin-like and asparagine-6-containing phospholipases A 2 in pit viper venoms A new class (penaeidin(More)
Starting with the epoch-making discovery of proinsulin, C-peptide has played an important interdisciplinary role, both as part of the single-chain precursor molecule and as an individual entity. In the pioneering years, fundamental systematic experiments unravelled new biochemical mechanisms and chemical structures. After the first detection of C-peptide in(More)
There is morphological and biochemical evidence that insulin is internalized in hepatocytes. The present study was designed to investigate the fate of the insulin receptor itself, subsequently to the initial binding step of the hormone to the hepatocyte plasma membrane. The insulin receptor was labeled with a 125I-photoreactive insulin analogue(More)
Previous studies have demonstrated differences in the size of insulin receptor subunits in brain and adipocytes that appear to involve variations in glycosylation of the proteins. In this report, we examined the degree of homology in the protein backbones of insulin receptors in both tissues by peptide mapping and compared the mRNAs encoding the receptors(More)
The first step of insulin's many cellular functions is specific binding to receptors on the plasma membrane of target cells. The subsequent molecular basis of insulin action, particularly the coupling mechanism(s) involved in transmitting the biological message, remains largely unknown. Our approach to the problem centres on the application of a series of(More)
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