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RecBCD is a model enzyme for the use of single molecule fluorescence as an experimental technique used to better understand the function of protein-DNA interactions. [23] The enzyme is also useful in removing linear DNA, either single- or double-stranded, from preparations of circular double-stranded DNA, since it requires a DNA end for activity.
The nuclear receptor 4A1 (NR4A1 for "nuclear receptor subfamily 4 group A member 1") also known as Nur77, TR3, and NGFI-B is a protein that in humans is encoded by the NR4A1 gene. [ 5 ] [ 6 ] Nuclear receptor 4A1 (NR4A1) is a member of the NR4A nuclear receptor family [ 7 ] of intracellular transcription factors .
A protein complex is a complex containing multiple proteins that (stably) interact with each other. The main article for this category is Protein complex . Wikimedia Commons has media related to Protein complexes .
BamA is a β-barrel, outer membrane protein found in Gram-negative bacteria and it is the main and vital component of the β-barrel assembly machinery (BAM) complex in those bacteria. [1] BAM Complex consists of five components; BamB, BamC, BamD, BamE (all are lipoproteins ) and BamA (Outer membrane protein).
Swiss-model (stylized as SWISS-MODEL) is a structural bioinformatics web-server dedicated to homology modeling of 3D protein structures. [ 1 ] [ 2 ] As of 2024 [update] , homology modeling is the most accurate method to generate reliable three-dimensional protein structure models and is routinely used in many practical applications.
The IκB kinase enzyme complex is part of the upstream NF-κB signal transduction cascade. The IκBα (inhibitor of nuclear factor kappa B) protein inactivates the NF-κB transcription factor by masking the nuclear localization signals (NLS) of NF-κB proteins and keeping them sequestered in an inactive state in the cytoplasm.
The 105 kD protein is a Rel protein-specific transcription inhibitor and the 50 kD protein is a DNA binding subunit of the NF-kappaB protein complex. NF-κB is a transcription factor that is activated by various intra- and extra-cellular stimuli such as cytokines , oxidant-free radicals, ultraviolet irradiation, and bacterial or viral products.
The first step of this cycle is the binding of cargo. Importin can perform this function as a monomeric importin-β protein, but usually requires the presence of importin-α, which acts as an adaptor to cargo proteins (via interactions with the NLS). The NLS is a sequence of basic amino acids that tags the protein as cargo destined for the nucleus.