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e2refinetorelion is run after an EMAN2 refinement has been completed. When it is run, it will take the input particle set and convert it to many normalized .mrcs files, each of which represents a single micrograph with all particles from that micrograph in it, stacked along the z-axis. It creates the "all_images.star" file which contains all of the information about the particles on a per-particle basis (CS, Defocus, Microscope Voltage, etc). It will take the input EMAN2 3D map and convert it to a Relion-style formatted map called 3DRefMap.mrc. One final thing this program does is created a directory, run01, that contains an submission script for submitting an MPI Relion job (on our clusters specifically. It will likely need to be modified to specfically address the computing environment you have). Because of the nature of Relion and of Cryo-EM itself, it is unwise to attempt to do these reconstructions on a local machine. Distributed computing works very well in these situations though the submission script can be used to extract the Relion command one could run on their local machine. ----
Helpful Links:
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Tutorial is under construction
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[[http://www2.mrc-lmb.cam.ac.uk/relion/index.php/Main_Page|RELION Webpage]]
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Options:
||-h ||--help ||bool ||show this help message and exit ||
|| ||--version ||bool ||show program's version number and exit ||
----
Program Options:
||||||||I/O||
|| ||--numclasses ||int ||# of classes ||
||||||||CTF Options||
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||||||||Optimisation Options||
|| ||--numiter ||int ||# of iterations to refine ||
|| ||--regparam ||float ||Regularization Parameter T (weights experimental data vs. prior ||
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|| ||--maskzeroes ||bool ||(T/F) For individual particles, the area outside a circle with the radius of the particle will be set to zeros prior to taking the Fourier transform ||
|| ||--solventmask ||string ||Location of the mask to be used ||
||||||||Sampling Options||
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|| ||--maskzeroes ||bool ||(T/F) For individual particles, the area outside a circle with the radius of the particle will be set to zeros prior to taking the Fourier transform ||
|| ||--numclasses ||int ||# of classes ||
|| ||--numiter ||int ||# of iterations to refine ||
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|| ||--regparam ||float ||Regularization Parameter T (weights experimental data vs. prior ||
|| ||--solventmask ||string ||Location of the mask to be used ||
||||||||Running Options||
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Expert Options: (used only if this information is not present in the previous EMAN2 reconstruction
||||||||Expert Options: used only if this information is not present in the previous EMAN2 reconstruction||
|| ||--voltage ||float ||Voltage of the Microscope (kV) ||
|| ||--cs ||float ||Spherical Aberration ||
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|| ||--cs ||float ||Spherical Aberration ||
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|| ||--voltage ||float ||Voltage of the Microscope (kV) || ||||||||Default Options||
||-h ||--help ||bool ||show this help message and exit ||
|| ||--version ||bool ||show program's version number and exit ||

This program is normally run via the EMAN2 Project Manager.


Helpful Links:

Tutorial is under construction

RELION Webpage


Program Options:

I/O

--numclasses

int

# of classes

CTF Options

--ctfcorrect

bool

(T/F)Do CTF Correction?

--dataphaseflipped

bool

(T/F)Has the data been phase flipped already?

--ignoretofirstpeak

bool

(T/F)Ignore CTF's until the first peak?

Optimisation Options

--numiter

int

# of iterations to refine

--regparam

float

Regularization Parameter T (weights experimental data vs. prior

--imagemaskd

float

Diameter of the image mask

--maskzeroes

bool

(T/F) For individual particles, the area outside a circle with the radius of the particle will be set to zeros prior to taking the Fourier transform

--solventmask

string

Location of the mask to be used

Sampling Options

--inplaneang

float

In-plane angular sampling

--offsetrange

float

Offset search range (pix)

--offsetstep

float

Offset search step (pix)

Running Options

--threads

int

# of threads

--verbosity

int

Set the level of verbosity for output

Expert Options: used only if this information is not present in the previous EMAN2 reconstruction

--voltage

float

Voltage of the Microscope (kV)

--cs

float

Spherical Aberration

--apix

float

Angstrom per pixel

--defocus

float

Defocus in Angstroms

Default Options

-h

--help

bool

show this help message and exit

--version

bool

show program's version number and exit

--echo

bool

Echo the relion command to the terminal window and exit

EMAN2/Programs/e2refinetorelion2d (last edited 2013-01-23 21:17:53 by StephenMurray)