Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques
Abstract This study concerns glulisine, a rapid-acting insulin analogue that plays a fundamental role in diabetes management. We have applied a combination of methods namely X-ray crystallography, and biophysical characterisation to provide a detailed insight into the structure and function of gluli...
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2021
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oai:doaj.org-article:1baf07d48a3740889f7ac839d941f0d32021-12-02T10:49:16ZAnalysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques10.1038/s41598-021-81251-22045-2322https://doaj.org/article/1baf07d48a3740889f7ac839d941f0d32021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81251-2https://doaj.org/toc/2045-2322Abstract This study concerns glulisine, a rapid-acting insulin analogue that plays a fundamental role in diabetes management. We have applied a combination of methods namely X-ray crystallography, and biophysical characterisation to provide a detailed insight into the structure and function of glulisine. X-ray data provided structural information to a resolution of 1.26 Å. Crystals belonged to the H3 space group with hexagonal (centred trigonal) cell dimensions a = b = 82.44 and c = 33.65 Å with two molecules in the asymmetric unit. A unique position of D21Glu, not present in other fast-acting analogues, pointing inwards rather than to the outside surface was observed. This reduces interactions with neighbouring molecules thereby increasing preference of the dimer form. Sedimentation velocity/equilibrium studies revealed a trinary system of dimers and hexamers/dihexamers in dynamic equilibrium. This new information may lead to better understanding of the pharmacokinetic and pharmacodynamic behaviour of glulisine which might aid in improving formulation regarding its fast-acting role and reducing side effects of this drug.Richard B. GillisHodaya V. SolomonLata GovadaNeil J. OldhamVlad DinuShahwar Imran JiwaniPhilemon Gyasi-AntwiFrank CoffeyAndy MealPaul S. MorganStephen E. HardingJohn R. HelliwellNaomi E. ChayenGary G. AdamsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021) |
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Medicine R Science Q Richard B. Gillis Hodaya V. Solomon Lata Govada Neil J. Oldham Vlad Dinu Shahwar Imran Jiwani Philemon Gyasi-Antwi Frank Coffey Andy Meal Paul S. Morgan Stephen E. Harding John R. Helliwell Naomi E. Chayen Gary G. Adams Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
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Abstract This study concerns glulisine, a rapid-acting insulin analogue that plays a fundamental role in diabetes management. We have applied a combination of methods namely X-ray crystallography, and biophysical characterisation to provide a detailed insight into the structure and function of glulisine. X-ray data provided structural information to a resolution of 1.26 Å. Crystals belonged to the H3 space group with hexagonal (centred trigonal) cell dimensions a = b = 82.44 and c = 33.65 Å with two molecules in the asymmetric unit. A unique position of D21Glu, not present in other fast-acting analogues, pointing inwards rather than to the outside surface was observed. This reduces interactions with neighbouring molecules thereby increasing preference of the dimer form. Sedimentation velocity/equilibrium studies revealed a trinary system of dimers and hexamers/dihexamers in dynamic equilibrium. This new information may lead to better understanding of the pharmacokinetic and pharmacodynamic behaviour of glulisine which might aid in improving formulation regarding its fast-acting role and reducing side effects of this drug. |
format |
article |
author |
Richard B. Gillis Hodaya V. Solomon Lata Govada Neil J. Oldham Vlad Dinu Shahwar Imran Jiwani Philemon Gyasi-Antwi Frank Coffey Andy Meal Paul S. Morgan Stephen E. Harding John R. Helliwell Naomi E. Chayen Gary G. Adams |
author_facet |
Richard B. Gillis Hodaya V. Solomon Lata Govada Neil J. Oldham Vlad Dinu Shahwar Imran Jiwani Philemon Gyasi-Antwi Frank Coffey Andy Meal Paul S. Morgan Stephen E. Harding John R. Helliwell Naomi E. Chayen Gary G. Adams |
author_sort |
Richard B. Gillis |
title |
Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
title_short |
Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
title_full |
Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
title_fullStr |
Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
title_full_unstemmed |
Analysis of insulin glulisine at the molecular level by X-ray crystallography and biophysical techniques |
title_sort |
analysis of insulin glulisine at the molecular level by x-ray crystallography and biophysical techniques |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/1baf07d48a3740889f7ac839d941f0d3 |
work_keys_str_mv |
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