The non-invasive nature of NMR offers a means to monitor biochemical reactions in situ at the atomic level. We harness this advantage to monitor a complex chemoenzymatic reaction that sequentially modifies reagents and loads the product on a nonribosomal peptide synthetase carrier protein. We present a protocol including a pulse sequence that permits to assess both the integrity of reagents and the completion of each step in the reaction, thus alleviating otherwise time-consuming and costly...
[NMR paper] Use of the 2D (1)H-(13)C HSQC NMR Methyl Region to Evaluate the Higher Order Structural Integrity of Biopharmaceuticals
Use of the 2D (1)H-(13)C HSQC NMR Methyl Region to Evaluate the Higher Order Structural Integrity of Biopharmaceuticals
The higher-order structure (HOS) of protein therapeutics is directly related to the function and represents a critical quality attribute. Currently, the HOS of protein therapeutics is characterized by methods with low to medium structural resolution, such as Fourier transform infrared (FTIR), circular dichroism (CD), intrinsic fluorescence spectroscopy (FLD), and differential scanning calorimetry (DSC). High-resolution nuclear magnetic resonance (NMR) methods have now...
NMR Studies of DNA Support the Role of Pre-ExistingMinor Groove Variations in Nucleosome Indirect Readout
NMR Studies of DNA Support the Role of Pre-ExistingMinor Groove Variations in Nucleosome Indirect Readout
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/bichaw/0/bichaw.ahead-of-print/bi500504y/aop/images/medium/bi-2014-00504y_0013.gif
Biochemistry
DOI: 10.1021/bi500504y
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08-27-2014 02:05 AM
[NMR paper] NMR studies of DNA support the role of pre-existing minor groove variations in nucleosome indirect readout.
NMR studies of DNA support the role of pre-existing minor groove variations in nucleosome indirect readout.
NMR studies of DNA support the role of pre-existing minor groove variations in nucleosome indirect readout.
Biochemistry. 2014 Aug 7;
Authors: Xu X, Ben Imeddourene A, Zargarian L, Foloppe N, Mauffret O, Hartmann B
Abstract
We investigated how the intrinsic sequence-dependent properties probed via the phosphate linkages (BI BII equilibrium) influence the preferred shape of free DNA, and how this affects the nucleosome...
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08-08-2014 01:45 PM
SIRT1 protein necessary for telomere elongation and genome integrity during ... - News-Medical.net
SIRT1 protein necessary for telomere elongation and genome integrity during ... - News-Medical.net
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SIRT1 protein necessary for telomere elongation and genome integrity during ...
News-Medical.net
A study published today in the journal Stem Cell Reports, from the Cell Publishing Group, reveals that the SIRT1 protein is needed to lengthen and maintain telomeres during cell reprogramming. SIRT1 also guarantees the integrity of the genome of stem ...
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05-19-2014 09:01 AM
Organic nanotube gels restore the activity of denatured proteins - R & D Magazine
Organic nanotube gels restore the activity of denatured proteins - R & D Magazine
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Organic nanotube gels restore the activity of denatured proteins
R & D Magazine
This ability to tune the gel for a protein of interest allows the scientists to protect proteins from heat and chemicals. ... The probe is capable of high resolution sample analysis by spinning the sample at 110 kHz, the world's fastest spinning speed ...
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07-13-2012 10:46 PM
Effect of protein structural integrity on cross-linking by tyrosinase evidenced by mu
Effect of protein structural integrity on cross-linking by tyrosinase evidenced by multidimensional heteronuclear NMR spectroscopy.
Effect of protein structural integrity on cross-linking by tyrosinase evidenced by multidimensional heteronuclear NMR spectroscopy.
J Biotechnol. 2010 Nov 15;
Authors: Hellman M, Mattinen ML, Fu B, Buchert J, Permi P
Enzymatic cross-linking of proteins can be catalyzed either by transferase-type enzymes, e.g., transglutaminases, or by oxidoreductases, e.g, tyrosinases or laccases. Three-dimensional structure of...