کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2039612 1073070 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
APEX Fingerprinting Reveals the Subcellular Localization of Proteins of Interest
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
APEX Fingerprinting Reveals the Subcellular Localization of Proteins of Interest
چکیده انگلیسی


• Biotinylating proteins using APEX generates unique molecular patterns
• Molecular patterns provide sub-compartmental information about the APEX-tagged protein
• APEX labeling reveals HMOX1 membrane topology in the ER

SummaryDeciphering the sub-compartmental location of a given protein of interest may help explain its physiological function, but it can be challenging to do using optical or biochemical methods. Imaging with electron microscopy (EM) can provide highly resolved mapping of proteins; however, EM requires complex sample preparation and a specialized facility. Here, we use engineered ascorbate peroxidase (APEX)-generated molecular labeling patterns to provide information regarding intracellular microenvironments in living cells. Using APEX labeling of specific proteins, we uncovered subcellular localization at sub-compartmental resolution and successfully elucidated the membrane protein topology of HMOX1 and sub-mitochondrial localization of recently identified mitochondrial proteins. This method can be expanded to confirm sub-mitochondrial localization and membrane topologies of previously identified mitochondrial proteins.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 15, Issue 8, 24 May 2016, Pages 1837–1847
نویسندگان
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