» Articles » PMID: 26515825

DelPhiPKa Web Server: Predicting PKa of Proteins, RNAs and DNAs

Overview
Journal Bioinformatics
Specialty Biology
Date 2015 Oct 31
PMID 26515825
Citations 57
Authors
Affiliations
Soon will be listed here.
Abstract

Unlabelled: A new pKa prediction web server is released, which implements DelPhi Gaussian dielectric function to calculate electrostatic potentials generated by charges of biomolecules. Topology parameters are extended to include atomic information of nucleotides of RNA and DNA, which extends the capability of pKa calculations beyond proteins. The web server allows the end-user to protonate the biomolecule at particular pH based on calculated pKa values and provides the downloadable file in PQR format. Several tests are performed to benchmark the accuracy and speed of the protocol.

Implementation: The web server follows a client-server architecture built on PHP and HTML and utilizes DelPhiPKa program. The computation is performed on the Palmetto supercomputer cluster and results/download links are given back to the end-user via http protocol. The web server takes advantage of MPI parallel implementation in DelPhiPKa and can run a single job on up to 24 CPUs.

Availability And Implementation: The DelPhiPKa web server is available at http://compbio.clemson.edu/pka_webserver.

Citing Articles

Structure and dynamics of the interaction of Delta and Omicron BA.1 SARS-CoV-2 variants with REGN10987 Fab reveal mechanism of antibody action.

Lyukmanova E, Pichkur E, Nolde D, Kocharovskaya M, Manuvera V, Shirokov D Commun Biol. 2024; 7(1):1698.

PMID: 39719448 PMC: 11668877. DOI: 10.1038/s42003-024-07422-9.


PypKa server: online pKa predictions and biomolecular structure preparation with precomputed data from PDB and AlphaFold DB.

Reis P, Clevert D, Machuqueiro M Nucleic Acids Res. 2024; 52(W1):W294-W298.

PMID: 38619040 PMC: 11223823. DOI: 10.1093/nar/gkae255.


Adsorption of Diclofenac and PFBS on a Hair Keratin Dimer.

Hafner R, Wolfgramm N, Klein P, Urbassek H J Phys Chem B. 2023; 128(1):45-55.

PMID: 38154791 PMC: 10788924. DOI: 10.1021/acs.jpcb.3c04997.


Probing the role of the protonation state of a minor groove-linker histidine in Exd-Hox-DNA binding.

Jiang Y, Chiu T, Mitra R, Rohs R Biophys J. 2023; 123(2):248-259.

PMID: 38130056 PMC: 10808038. DOI: 10.1016/j.bpj.2023.12.013.


Comparative Performance of High-Throughput Methods for Protein p Predictions.

Wei W, Hogues H, Sulea T J Chem Inf Model. 2023; 63(16):5169-5181.

PMID: 37549424 PMC: 10466379. DOI: 10.1021/acs.jcim.3c00165.


References
1.
Toseland C, McSparron H, Davies M, Flower D . PPD v1.0--an integrated, web-accessible database of experimentally determined protein pKa values. Nucleic Acids Res. 2005; 34(Database issue):D199-203. PMC: 1347398. DOI: 10.1093/nar/gkj035. View

2.
Tang C, Alexov E, Pyle A, Honig B . Calculation of pKas in RNA: on the structural origins and functional roles of protonated nucleotides. J Mol Biol. 2007; 366(5):1475-96. DOI: 10.1016/j.jmb.2006.12.001. View

3.
Mitra R, Zhang Z, Alexov E . In silico modeling of pH-optimum of protein-protein binding. Proteins. 2011; 79(3):925-36. PMC: 3213863. DOI: 10.1002/prot.22931. View

4.
Gordon J, Myers J, Folta T, Shoja V, Heath L, Onufriev A . H++: a server for estimating pKas and adding missing hydrogens to macromolecules. Nucleic Acids Res. 2005; 33(Web Server issue):W368-71. PMC: 1160225. DOI: 10.1093/nar/gki464. View

5.
Song Y, Mao J, Gunner M . MCCE2: improving protein pKa calculations with extensive side chain rotamer sampling. J Comput Chem. 2009; 30(14):2231-47. PMC: 2735604. DOI: 10.1002/jcc.21222. View