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背包旅客

新虫 (初入文坛)

[求助] Amber复合物做MM-PBSA教程是蛋白老是出错!!!

小辈按照Amber官网上面的教程学习MM-PBSA,但是一开始我就进行不下去啦!我用命令:
tleap -f oldff/leaprc.ff99SB
> source leaprc.gaff   
> com = loadpdb ras-raf.pdb
> ras = loadpdb ras.pdb
> raf = loadpdb raf.pdb  打开三个pdb文件,可是总显示:
Created a new atom named: HD22 within residue: .R<LEU 242>
Created a new atom named: HD23 within residue: .R<LEU 242>
Created a new atom named: C within residue: .R<LEU 242>
Created a new atom named: O within residue: .R<LEU 242>
Created a new atom named: OXT within residue: .R<LEU 242>
  total atoms in file: 3862
The file contained 3862 atoms not in residue templates

然后我继续运行下列命令:
set default PBRadii mbondi2
saveamberparm com ras-raf.prmtop ras-raf.inpcrd
saveamberparm ras ras.prmtop ras.inpcrd
saveamberparm raf raf.prmtop raf.inpcrd
就出现以下情况:
FATAL:  Atom .R<LEU 242>.A<HD23 17> does not have a type.
FATAL:  Atom .R<LEU 242>.A<C 18> does not have a type.
FATAL:  Atom .R<LEU 242>.A<O 19> does not have a type.
FATAL:  Atom .R<LEU 242>.A<OXT 20> does not have a type.
Failed to generate parameters
Parameter file was not saved.

继续运行后面两步,能生成我要的*.inpcrd文件和*.prmtop文件,但是是空文件!!!

请问这是什么问题啊???要怎么解决呢???做过这个例子的,可以指导一下么???跪谢~~~
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九色腾

新虫 (正式写手)

请问楼主怎么解决的?我做纤维的但是遇到雷同问题

发自小木虫Android客户端
3楼2019-01-21 09:51:12
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gezi187

新虫 (初入文坛)

amber 把每个氨基酸的参数已经生成了,叫做unit,这里面LEU没有找到,可能是格式问题,也可能是某一步加载没成功,后面就没报错
2楼2016-01-14 15:09:59
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