Abstract：
:Completion of the human genome sequence has provided scientists with powerful resources with which to explore the molecular events associated with disease states such as diabetes. Understanding the relative levels of expression of gene products, especially of proteins, and their post-translational modifications will be critical. However, though the pancreatic islets play a key role in glucose homeostasis, global protein expression data in human are decidedly lacking. We here report the two-dimensional protein map and database of human pancreatic islets. A high level of reproducibility was obtained among the gels and a total of 744 protein spots were detected. We have successfully identified 130 spots corresponding to 66 different protein entries and generated a reference map of human islets. The functionally characterized proteins include enzymes, chaperones, cellular structural proteins, cellular defense proteins, signaling molecules, and transport proteins. A number of proteins identified in this study (e.g., annexin A2, elongation factor 1-alpha 2, histone H2B.a/g/k, heat shock protein 90 beta, heat shock 27 kDa protein, cyclophilin B, peroxiredoxin 4, cytokeratins 7, 18, and 19) have not been previously described in the database of mouse pancreatic islets. In addition, altered expression of several proteins, like GRP78, GRP94, PDI, calreticulin, annexin, cytokeratins, profilin, heat shock proteins, and ORP150 have been associated with the development of diabetes. The data presented in this study provides a first-draft reference map of the human islet proteome, that will pave the way for further proteome analysis of pancreatic islets in both healthy and diabetic individuals, generating insights into the pathophysiology of this condition.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Ahmed M,Forsberg J,Bergsten Pdoi
10.1021/pr050024akeywords:
subject
Has Abstractpub_date
2005-05-01 00:00:00pages
931-40issue
3eissn
1535-3893issn
1535-3907journal_volume
4pub_type
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journal_title：Journal of proteome research
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journal_title：Journal of proteome research
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journal_title：Journal of proteome research
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更新日期：2009-08-01 00:00:00
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pub_type： 杂志文章
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更新日期：2003-09-01 00:00:00
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journal_title：Journal of proteome research
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更新日期：2014-12-05 00:00:00
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journal_title：Journal of proteome research
pub_type： 杂志文章
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更新日期：2011-07-01 00:00:00
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更新日期：2014-01-03 00:00:00
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journal_title：Journal of proteome research
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更新日期：2019-11-01 00:00:00
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更新日期：2009-02-01 00:00:00
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