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--- howto:sphire_helical [2019/09/29 14:59]
mstabrin
+++ howto:sphire_helical [2019/10/01 12:38]
twagner
@@ Line 12: / Line 12: @@
 Before you start the processing helical data, you have to switch to the Helical version of SPHIRE.
-You can do that in the general settings area.
+You can do that in the general settings area or start the GUI with **sphire %%--%%helical**.
 <html>
@@ Line 30: / Line 30: @@
 {{ :howto:helical_project_filled.png?600 |}}
-Follow the steps of the normal SPA Tutorial for the steps up to the 3D refinement.
+<note important>
+Follow the steps of the normal [[downloads:sphire_1_3#tutorial|SPA Tutorial]] for the steps **up to** the 3D refinement.
+The information about the filament width should be filled out by default for these steps.
+</note>
 <html>
@@ Line 38: / Line 41: @@
 </html>
-{{ :howto:sphire_helical_meridien.png?600 |}}
+{{ :howto:helical_refinement_unfilled.png?600 |}}
+Fill out the information like in the **SPA** tutorial.
+A short description for the additional options:
+  * **Theta min [degree]** - Minimum Theta to use during the EXHAUSTIVE step.  (This should be kept to 90 for filamentous samples)
+  * **Theta max [degree]** - Maximum Theta to use during the EXHAUSTIVE step.  (This should be kept to 90 for filamentous samples)
+  * **Group name for chunks** - The random chunks are created based on this header entry name.
+  * **Outlier group ID** - Outlier calculation is performed after every iteration. For now, they are only calculated, but not applied automatically.
+  * **Helical rise [A]** - Approximate helical rise of the protein. This information is used to limit the x/y-shift range in every iteration during the refinement.
+A more detailed tutorial combined with a test dataset will follow soon.
+If you encounter any problems or in case you have questions about the procedure feel free to ask in the [[howto:mailinglist|SPHIRE mailing list]] or write me directly: markus.stabrin@mpi-dortmund.mpg.de

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