Calculate HDX intrinsic exchange rates.
Project description
Python package collection for HDX intrinsic exchange rate calculation. The calculations are based on the following papers:
Bai, Y., Milne, J. S., Mayne, L. & Englander, S. W. Primary structure effects on peptide group hydrogen exchange. Proteins Structure, Function, and Bioinformatics 17, 75–86 (1993)
Connelly, G. P., Bai, Y., Jeng, M.-F. & Englander, S. W. Isotope effects in peptide group hydrogen exchange. Proteins 17, 87–92 (1993).
Mori, S., Zijl, P. C. M. van & Shortle, D. Measurement of water–amide proton exchange rates in the denatured state of staphylococcal nuclease by a magnetization transfer technique. Proteins Structure, Function, and Bioinformatics 28, 325–332 (1997)
Nguyen, D., Mayne, L., Phillips, M. C. & Walter Englander, S. Reference Parameters for Protein Hydrogen Exchange Rates. J. Am. Soc. Mass Spectrom. 29, 1936–1939 (2018).
See also the excel sheet on the Englander group website: http://hx2.med.upenn.edu/download.html
Free software: GNU General Public License v3
Features
Calculate intrinsic rate of amide hydrogen exchange in proteins.
Installation
$ pip install hdxrate
or
$ conda install -c conda-forge hdxrate
Usage
>>> from hdxrate import k_int_from_sequence >>> k_int_from_sequence('HHHHH', 300, 7.) array([0.00000000e+00, 2.62430718e+03, 6.29527446e+01, 6.29527446e+01, 9.97734191e-01])
Credits
HDXrate implementation is based on PSX intrinsic rate calculation https://github.com/Niels-Bohr-Institute-XNS-StructBiophys/PSX
Pedersen, M. C. et al. PSX, Protein–Solvent Exchange: software for calculation of deuterium-exchange effects in small-angle neutron scattering measurements from protein coordinates. J Appl Cryst 52, 1427–1436 (2019).
Maintenance
Jochem Smit <jhsmit@gmail.com> / <jochem.smit@kuleuven.be>
Project details
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