CV:NASBPP: Difference between revisions

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The simple base pair parameters for the A:B base pair.  
The simple base pair parameters for the A:B base pair.  


'''PBC note:''' The minimum-image convention is not used.
'''IMPORTANT:''' It is critical that the A and B bases are not separated during simulation due to imaging of DNA chains into the simulation box. Use ether topjoinmol from CATs or use correct value of iwrap in sander or pmemd.
 


===Specification===
===Specification===
Line 27: Line 26:
| [[Mask format|mask]]
| [[Mask format|mask]]
|
|
| atoms for the base A ring '''A'''  
| atoms for the base '''A''' ring
|- style="vertical-align: top;"
|- style="vertical-align: top;"
| '''reference_a'''
| '''reference_a'''
| string
| string
|
|
| name of file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group '''group_a'''
| name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group '''group_a'''
|-
| '''direction_a'''
| x, y, z
|
| selection of corresponding axis of the reference frame '''A'''
|-
|-
| '''group_b'''
| '''group_b'''
| [[Mask format|mask]]
| [[Mask format|mask]]
|
|
| atoms employed in the superimposition of the reference frame '''B'''  
| atoms for the base '''B''' ring
|- style="vertical-align: top;"
|- style="vertical-align: top;"
| '''reference_b'''
| '''reference_b'''
| string
| string
|
|
| name of file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group '''group_b'''
| name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group '''group_b'''
|-
| '''group_c'''
| [[Mask format|mask]]
|
| atom from '''A''' base defining origin of y-axis
|-
|-
| '''direction_b'''
| '''group_d'''
| x, y, z
| [[Mask format|mask]]
|
| atom from '''B''' base defining end of y-axis
|-
| '''parameter'''
| string
|
|
| selection of corresponding axis of the reference frame '''B'''
| type of parameter:
|}
|}
''Keys in bold are mandatory.''
''Keys in bold are mandatory.''

Revision as of 16:40, 12 February 2019

Navigation: Documentation / Collective Variables / CV:NASBPP


Distance

Angle

Coordination

Shape

Nucleic Acids

Puckering

Special

Energy

Algebra

Definition

The simple base pair parameters for the A:B base pair.

IMPORTANT: It is critical that the A and B bases are not separated during simulation due to imaging of DNA chains into the simulation box. Use ether topjoinmol from CATs or use correct value of iwrap in sander or pmemd.

Specification

Section name: NASBPP

Key Type Default Description




name string unique CV name
group_a mask atoms for the base A ring
reference_a string name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group group_a
group_b mask atoms for the base B ring
reference_b string name of the file with the reference structure in the XYZ format, the structure must have the same number of atoms as the group group_b
group_c mask atom from A base defining origin of y-axis
group_d mask atom from B base defining end of y-axis
parameter string type of parameter:

Keys in bold are mandatory.