---
title: ABclonal Knowledge Base | Gene Transcription Factor
description: Gene Transcription Factor |
---
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[](https://blog.abclonal.com/blog/cuttag-an-alternative-to-chip)
Aug 15, 2022, 11:37:47 AM by [Kin Leung](https://blog.abclonal.com/blog/author/kin-leung)
## [CUT&Tag: An Alternative to Chromatin Immunoprecipitation](https://blog.abclonal.com/blog/cuttag-an-alternative-to-chip)
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The arguably most fun thing about science is when your supervisor tells you to just do Experiment X to test hypothesis, but then they kind of forget to tell you how complicated the techniques are to perform that experiment, not to mention all the optimization you would need to do. I personally have never done a chromatin immunoprecipitation (ChIP), and since I wasn’t in genomics, the most sequencing I ever did was setting up quick reactions for the core facility to tell me that my gene constructs were correctly built. ChIP does sound rather simple when explained in class, but when you read up on the protocols,1 there are some limitations to what ChIP can do, especially given the large amount of starting material you need for the typical experiment. Luckily, in recent years, scientists have started to use an alternative technique called Cleavage Under Targets and Tagmentation, or CUT&Tag, which ABclonal is pleased to support through our antibody reagents.
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---
[](https://blog.abclonal.com/blog/new-and-old-techniques-to-study-protein-dna-binding)
Mar 11, 2019, 12:28:22 AM by [Michele Mei](https://blog.abclonal.com/blog/author/michele-mei)
## [New and Old Techniques to Study Protein-DNA Binding](https://blog.abclonal.com/blog/new-and-old-techniques-to-study-protein-dna-binding)
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Proteins known as **transcription factors** play a crucial role in gene regulation by activating, enhancing, and even silencing a gene’s expression. Many textbooks and resources compare transcription factors (TFs) to something like an on/off switch for gene transcription. However, it is a bit more complicated than just turning gene expression on or off. Various properties (e.g. binding affinity, specificity, and genetic variance of binding sites) impact the binding of TFs to DNA, thereby altering gene expression. To study transcription and how it is regulated, scientists study TF-DNA interactions on a genome-wide level.
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---
[](https://blog.abclonal.com/blog/chip-grade-ctcf-antibody)
Oct 23, 2018, 11:43:50 AM by [Panyue (Penny) Hao](https://blog.abclonal.com/blog/author/panyue-penny-hao)
## [ChIP-grade CTCF Antibody](https://blog.abclonal.com/blog/chip-grade-ctcf-antibody)
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CTCF (CCCTC Binding Factor) is a highly conserved transcription factor that regulates transcriptional activation, transcriptional repression, insulator function, and imprinted control regions (ICRs).
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