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asymmetric_bilayer

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asymmetric_bilayer [2022/08/24 09:56] – [Asymmetric membrane builder] editasymmetric_bilayer [2026/03/04 00:09] (current) – [Package and operation] edit
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 Contact email: mkhsieh1027@gmail.com \\ Contact email: mkhsieh1027@gmail.com \\
  
-Update: +**Update (02.15.2026):**\\ 
-The package (v4) was constructed based on bacterial inner membrane models with phospholipids; the system with other lipids should use v5 and the system with proteins should use a limited version asym_memb_builder_v4_prot . Please provide comments and feedbacks to improve this package. Thanks.+The update (asym_memb_builder_v5.tgz) reflects the corresponding modification of ion residue names in IONS, replacing the POT and CAL resnames. In Step 6, phosphorus atoms are constrained in step5_input.ref following CHARMM minimization. Using the helper file (./namd/membrane_lipid_phos_restraint.namd.str), users can modify the constraint settings as needed. 
 + 
 +**Update (08.24.2022):**\\ 
 +The package (v4) was constructed based on bacterial inner membrane models with phospholipids and the system with other lipids should use v5. \\ 
 +The packages may not be able to apply to system with glycolipids. 
 +The system with proteins should use a limited version asym_memb_builder_v4_prot . \\ 
 +Please provide comments and feedbacks to improve this package. Thanks.\\ 
 +In step5.2, one should be able to create input for several MD simulation packages by Force Field Converter at CHARMM-GUI page (https://charmm-gui.org/?doc=input/converter.ffconverter) 
 +where takes the step5_assembly.psf and step5_assembly.crd file generated from step5.1 with step5_assembly.str information.
  
      
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 ====== Package and operation ====== ====== Package and operation ======
 For DT2, the package at /lustre/mhsieh/asym_memb/asym_memb_builder_v4 \\ For DT2, the package at /lustre/mhsieh/asym_memb/asym_memb_builder_v4 \\
-or download the package through the link {{ :asym_memb_builder_v4.tgz |}} \\+/lustre/mhsieh/asym_memb/asym_memb_builder_v5.beta \\ 
 +/lustre/mhsieh/asym_memb/asym_memb_builder_v4_prot \\ 
 +or download the package through the link {{ :asym_memb_builder_v4.tgz |}} {{ :asym_memb_builder_v5.beta.tgz |}}  {{ :asym_memb_builder_v5.1.tgz |}}\\ 
 Authors: Min-Kang Hsieh and Jeffery B. Klauda \\  Authors: Min-Kang Hsieh and Jeffery B. Klauda \\ 
 \\ \\
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 2. **step2_gen_bilayer.str**: Parameter table of the generated bilayer \\ 2. **step2_gen_bilayer.str**: Parameter table of the generated bilayer \\
 \\ \\
-In step 2, the two monolayers listing in the input file (**step2_opt_a.str** or **step2_opt_b.str**) are combined to form a bilayer. If there is no adding lipid needed, step2a_gen_bilayer.inp is used with step2_opt_a.str as the input; otherwise, step2b_gen_bilayer.inp is used with step2_opt_b.str as the input. The centers of mass (COM) of both monolayers line on the z-direction. \\+In step 2, the two monolayers listing in the input file (**step2_opt_a.str** or **step2_opt_b.str**) are combined to form a bilayer. If adding lipids, step2a_gen_bilayer.inp is used with step2_opt_a.str as the input; otherwise, step2b_gen_bilayer.inp is used with step2_opt_b.str as the input. The centers of mass (COM) of both monolayers line on the z-direction. \\
 \\ \\
 ==== Step 3:   Determine size of simulation box ==== ==== Step 3:   Determine size of simulation box ====
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 **Step5.2: Generate NAMD input** \\ **Step5.2: Generate NAMD input** \\
 +**Update:**\\
 +One should be able to create input for several MD simulation packages by **Force Field Converter** at CHARMM-GUI page (https://charmm-gui.org/?doc=input/converter.ffconverter) \\
 +where takes the step5_assembly.psf and step5_assembly.crd file generated from step5.1 with step5_assembly.str information.
 +
 CHARMM configuration file:  **step5.2_input.inp** \\ CHARMM configuration file:  **step5.2_input.inp** \\
 Output files: ./namd directory \\ Output files: ./namd directory \\
asymmetric_bilayer.1661349410.txt.gz · Last modified: 2022/08/24 09:56 by edit