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Find video protocols related to scientific articles indexed in Pubmed.
Comparative analysis of histone H3 and H4 post-translational modifications of esophageal squamous cell carcinoma with different invasive capabilities.
J Proteomics
PUBLISHED: 07-01-2014
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Eukaryotic DNA is packaged into a chromatin with the help of four core histones (H2A, H2B, H3, and H4). Diverse histone post-translational modifications (PTMs) are hence involved in the regulation of gene transcription. However, how this regulation does work is still poorly understood and lacks details. Here we used the mass spectrometry-based proteomics approach to perform a comparative analysis of histone marks at a global level in two phenotypes of esophageal squamous cell carcinoma (ESCC) with different invasiveness. We obtained a comprehensive profiling of histone H3 and H4 PTMs including lysine methylation, acetylation and novel butyrylation. The correlation between histone marks and cancer invasive capabilities was further characterized and one distinguishable PTM, H4K79me2 was discovered and verified in this study. Immunohistochemistry analysis suggests that abnormal level of H4K79me2 may be related to poor survival of ESCC patients. Our results enrich the dataset of the feature pattern of global histone PTMs in ESCC cell lines.
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[Identification of methylation at lysine 27 and 36 sites in histone H3].
Se Pu
PUBLISHED: 09-26-2013
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We combined high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS) with bioinformatics tools to analyze the isobaric modified peptides which were methylated and dimethylated at either lysine (K) 27 or/and K36 from histone H3. They were identified and dissected through alignment of every fragment ion, and the two modified sites were further analyzed according to their relative intensities of MS/MS spectra.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.