Debian Science Chemistry packages

FDMNES calculates the spectra of different spectroscopies related to the real or virtual absorption of x-ray in material. It gives the absorption cross sections of photons around the ionization edge, that is in the energy range of XANES in the EXAFS. The calculation is performed with all conditions of rectilinear or circular polarization. In the same way, it calculates the structure factors and intensities of anomalous or resonant diffraction spectra (DAFS or RXD). FDMNES also allows the comparison of the simulated spectra to experimental ones with the help of objective criteria.

mMass is a free mass spectrum viewer/analyzer in which the following proteomics-related tasks can be performed:

• Open raw text, mzXML and mzData mass spectra;
• Define peak lists;
• Powerful mass spectrum viewer (zoom, cursor...);
• Data recalibration;
• Protein-only simulations;
• Online Mascot searches.

The software can be easily extended by additional Python modules. This package contains the platform-independent parts of the software.

mMass is a free mass spectrum viewer/analyzer in which the following proteomics-related tasks can be performed:

• Open raw text, mzXML and mzData mass spectra;
• Define peak lists;
• Powerful mass spectrum viewer (zoom, cursor...);
• Data recalibration;
• Protein-only simulations;
• Online Mascot searches.

The software can be easily extended by additional Python modules. This package contains the platform-dependent parts of the software.

MOLDEN is a package for displaying Molecular Density from the Ab Initio packages GAMESS-UK , GAMESS-US and GAUSSIAN and the Semi-Empirical packages Mopac/Ampac, it also supports a number of other programs via the MOLDEN Format. MOLDEN reads all the required information from the GAMESS / GAUSSIAN outputfile. MOLDEN is capable of displaying Molecular Orbitals, the electron density and the Molecular minus Atomic density. Either the spherically averaged atomic density or the oriented ground state atomic density can be subtracted for a number of standard basis sets. MOLDEN supports contour plots, 3-d grid plots with hidden lines and a combination of both. It can write a variety of graphics instructions; postscript, X, VRML, povray, OpenGL, tekronix4014, hpgl, hp2392 and Figure. The X version of MOLDEN is also capable of importing and displaying of chemx, PDB, and a variety of mopac/ampac files and lots of other formats. It also can animate reaction paths and molecular vibrations. It can calculate and display the true or Multipole Derived Electrostatic Potential and atomic charges can be fitted to the Electrostatic Potential calculated on a Connolly surface. MOLDEN has a powerful Z-matrix editor which give full control over the geometry and allows you to build molecules from scratch, including polypeptides. MOLDEN was also submitted to the QCPE (QCPE619), allthough the X version is considerably running behind on the current one.

Molekel is an open-source multi-platform molecular visualization program.

Some of the features are:

• Different methods to speed-up rendering of molecules with support for billboards and view-dependent level of detail techniques
• Programmable shaders; standard shaders to enhance rendering quality, outline contours and perform sketch-like renderings are provided
• Visualization of residues (ribbon or schematic)
• Complete control over the generation of molecular surfaces (bounding box and resolution)
• Visualization of the following surfaces:
• Orbitals
• Iso-surface from density matrix
• Iso-surface from Gaussian cube grid data
• SAS
• SES
• Van der Waals
• Animation of molecular surfaces
• Animation of vibrational modes
• Export high resolution images for 300+ DPI printing
• Export to PostScript and PDF
• Export animation
• Plane widget to visualize a scalar field: the plane can be freely moved in 3d space and the points on the plane surface will be colored according to the value of the scalar field: a cursor can be moved on the plane surface to show the exact value of the field at a specific point in space.

The TINKER molecular modeling software is a complete and general package for molecular mechanics and dynamics, with some special features for biopolymers. TINKER has the ability to use any of several common parameter sets, such as Amber (ff94, ff96, ff98 and ff99), CHARMM (19 and 27), Allinger MM (MM2-1991 and MM3-2000), OPLS (OPLS-UA, OPLS-AA and OPLS-AA/L), Liam Dang's polarizable potentials, and our own AMOEBA polarizable atomic multipole force field. Parameter sets for other standard force fields such as GROMOS, UFF, ENCAD and MM4 are under consideration for future releases.

The TINKER package includes a variety of novel algorithms such as a new distance geometry metrization method that has greater speed and better sampling than standard methods, Elber's reaction path methods, several of our Potential Smoothing and Search (PSS) methods for global optimization, an efficient potential surface scanning procedure, a flexible implementation of atomic multipole-based electrostatics with explicit dipole polarizability, a selection of continuum solvation treatments including several variants of the generalized Born (GB/SA) model, an efficient truncated Newton (TNCG) local optimizer, surface areas and volumes with derivatives, a simple free energy perturbation facility, normal mode analysis, minimization in Cartesian, torsional or rigid body space, velocity Verlet stochastic dynamics, an improved spherical energy cutoff method, Particle Mesh Ewald summation for partial charges and regular Ewald for polarizable multipoles, a novel reaction field treatment of long range electrostatics, and more....

Viewmol is able to graphically aid in the generation of molecular structures for computations and to visualize their results.

At present Viewmol includes input filters for Discover, DMol3, Gamess, Gaussian 9x/03, Gulp, Mopac, PQS, Turbomole, and Vamp outputs as well as for PDB files. Structures can be saved as Accelrys' car-files, MDL files, and Turbomole coordinate files. Viewmol can generate input files for Gaussian 9x/03. Viewmol's file format has been added to OpenBabel so that OpenBabel can serve as an input as well as an output filter for coordinates.

The EGAD Library is a modular, object oriented approach to rational protein design. It is platform-independent, written in C++ and, most importantly, free. Its raison d'etre is to serve as a tool for building protein design applications. It can also be used as a test-bed for the comparison of different energy functions and minimization algorithms under the same physical model.

Citations of EGAD Library should reference the paper in the Journal of Computational Chemistry. doi:10.1002/jcc.20727

Libint library is used to evaluate the traditional (electron repulsion) and certain novel two-body matrix elements (integrals) over Cartesian Gaussian functions used in modern atomic and molecular theory. The idea of the library is to let computer write optimized code for computing such integrals. There are two primary advantages to this: much less human effort is required to write code for computing new integrals, and code can be optimized specifically for a particular computer architecture (e.g., vector processor).

Libint has been utilized to implement methods such as Hartree-Fock (HF) and Kohn-Sham density functional theory (KS DFT), second-order Moller-Plesset perturbation theory (MP2), coupled cluster singles and doubles (CCSD) method, as well as explicitly correlated R12 methods. The following software packages use Libint:

Improves mpqc (#409025) and psi3.

OpenChrom is an open source software for chromatography based on the Eclipse Rich Client Platform (RCP). Its focus is to handle mass spectrometry systems (e.g. GC/MS, LC/MS, Py-GC/MS, HPLC-MS) data files natively. OpenChrom is able to import binary and textual chromatographic data files, such as *.D chromatograms from Agilent Technologies or NetCDF. Moreover, it offers a nice graphical user interface and is available for various operating systems, e.g. Windows, Linux, Solaris and Mac OSX. A basis set of methods to detect baselines, peaks and to integrate peaks in a chromatogram are implemented. Preprocessing steps, e.g. to remove certain mass fragments (m/z) such as nitrogen (28) or water (18), are supported by applying filter on the chromatogram or mass spectrum. Extensions are welcome, as OpenChrom is open source and uses a flexible approach, which allows others to implement their own methods, algorithms, filters, detectors or integrators. Therefore, OpenChrom shall be an efficiently system to process chromatographic and mass spectrometric data using an extensible and flexible plugin approach.