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° | Prop<Atom|Res|Mol|Obj|All> | - |
Set/get the property value |
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| | | Command | | Argument | | Datatype | | Default | | Min | | Max | |
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| Format: | | Prop<Atom|Res|Mol|Obj|All> | Selection, | |
SELECTION | | - | | - |
| - | | |
| | value = Property value to set | |
FLOAT | | - | | - | | - | | |||
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| Python: | | Prop<Atom|Res|Mol|Obj|All>(selection1,value) resultlist = Prop<Atom|Res|Mol|Obj|All>(selection1) | | ||||||||||
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| Menu: | | Edit > Renumber > Property value | | ||||||||||
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| Related: | | BFactor , Occup, Color , ColorPar | | ||||||||||
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| Required: | |  |
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The Prop
command sets or gets the property values of the selected atoms. The property value is simply a floating point number associated with an atom,
like the B-factor or the
occupancy. It is not part of the PDB format and can therefore not be saved with
SavePDB. Only the YASARA specific commands
SaveSce and SaveYOb
preserve the property value.
When coloring by property value,
a value of 0.0 corresponds to yellow, and a value of 1.0 to blue by default. Other color schemes can be defined with the
ColorPar command. A property value of -999 indicates that no property could be assigned to an atom,
which always maps to the color gray.
The atomic property value becomes especially useful in the Twinset,
where it corresponds to WHAT IF's atomic value displayed in the rightmost column of the LISTAA output. This value is set by many WHAT IF commands and made easily accessible in YASARA by the
Prop command.
YASARA also supports selections by property value
.
Example 1:
PropAtom 124
Get the property value of atom 124.
Example 2:
PropAtom Mol A
Get the property values of the atoms in molecule A.
Example 3:
PropMol A
Get the average property value of molecule A.
Example 4:
PropRes His Arg
Get the average property values of all residues named His or Arg.
Example 5:
property = PropObj 4
Assign the average property value of object 4 to variable
'property'.
Example 6:
propertylist() = PropRes Obj 3
Assign the average property values of the residues in object
3 to the list 'propertylist'.
Example 7:
PropAtom Backbone,-500
Propertize all backbone atoms with the value -500.