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标题: amber在最后生成拓扑文件和坐标文件遇到报错 [打印本页]

作者
Author:
SuXXXX    时间: 2022-8-24 08:43
标题: amber在最后生成拓扑文件和坐标文件遇到报错
各位老师,是这样的,我遇到两个问题:
1、''tleap -s -f 4j1w_tleap.in > 4j1w_tleap.out''
生成最终用来跑MD的拓扑文件(4j1w_solv.prmtop)和坐标文件(4j1w_solv.inpcrd)时,无Error,有warning,我无视了warning
"ambpdb -p 4j1w_solv.prmtop -c 4j1w_solv.inpcrd > A.pdb"
想用该方法合成pdb,手动检查结构,但出现报错:
“Error: Atom 5861 was assigned a lower molecule # (1) than previous atom (2).
Error:   This can happen if bond information is incorrect or missing, or if the
Error:   atom numbering in molecules is not sequential. Try one of the
Error:   following:
Error: - If this is a PDB file, try using the 'noconect' keyword.
Error: - If this topology did not have bond info, try increasing the bond
Error:   search cutoff above 0.2 Ang. ('bondsearch <cutoff>').
Error: - Use the 'fixatomorder' command to reorder the topology and any
Error:   associated coordinates.
Error: - Use the 'setMolecules' command in parmed to reorder only the
Error:   topology.
Error: Could not determine molecule information for 4j1w_solv.prmtop.
Error: SetSolventInfo: No molecule information.
Error: Could not determine solvent information for 4j1w_solv.prmtop.”

在查阅官网的教程(http://ambermd.org/tutorials/advanced/tutorial20/mcpbpy.htm)后,使用以下方法尝试解决问题:
(, 下载次数 Times of downloads: 21)
输入“cpptraj -p 4j1w_solv.prmtop -c 4j1w_solv.inpcrd -i fixatord.in > fixatord.out
依旧出现同样报错,且未生成fixed.4j1w_solv.prmtop和fixed.4j1w_solv.inpcrd文件,目前我不知道问题出在哪里,前面的操作我也找不到错处。


2、尽管重复多次,我一直有这样一个警告出现:
Warning: Amber topology flag 'CMAP_COUNT' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_RESOLUTION' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_01' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_02' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_03' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_04' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_05' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_06' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_07' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_08' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_09' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_10' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_11' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_12' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_13' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_PARAMETER_14' is unrecognized and will be skipped.
Warning: Amber topology flag 'CMAP_INDEX' is unrecognized and will be skipped.
在对比了已经毕业的师姐(在其他学校的Linux上进行计算)做的酶,她的拓扑文件里确实没有CMAP_COUNT这些东西的出现,和我的不大一样,我的拓扑文件中会有CMAP_COUNT这些片段,她的不存在这样的警告,我也一直找不到问题的所在。
麻烦各位同行老师们了!



作者
Author:
casea    时间: 2022-8-24 08:55
1. 官网写的fixatord.in命令有问题,`trajout  fixed.1Y79_solv.inpcrd restart` restart需要放在最后
2. 使用tleap生成topol时可以直接生成pdb文件 `savepdb mol xxxx.pdb`
作者
Author:
SuXXXX    时间: 2022-8-24 09:41
casea 发表于 2022-8-24 08:55
1. 官网写的fixatord.in命令有问题,`trajout  fixed.1Y79_solv.inpcrd restart` restart需要放在最后
2.  ...

感谢老师的回复!但是我还是遇到了问题:
1、我将“trajout restart fixed.1Y79_solv.inpcrd ”更改为“trajout fixed.1Y79_solv.inpcrd restart”,依旧是一样的错误。
2、用tleap直接生成了pdb文件我检查了结构没有问题,但是如果将拓扑文件和坐标文件合成pdb结构文件,就出现错误,这是说明我的拓扑文件和坐标文件有问题吗。
麻烦老师了!
作者
Author:
casea    时间: 2022-8-24 10:05
本帖最后由 casea 于 2022-8-24 10:07 编辑
SuXXXX 发表于 2022-8-24 09:41
感谢老师的回复!但是我还是遇到了问题:
1、我将“trajout restart fixed.1Y79_solv.inpcrd ”更改为“ ...

可能prmtop格式不兼容,可以手动把prmtop里面提示报错的字符段删除试试。我之前也遇到过,把那些topol flag及其包含内容删掉即可 (, 下载次数 Times of downloads: 24)

作者
Author:
SuXXXX    时间: 2022-8-24 14:23
casea 发表于 2022-8-24 10:05
可能prmtop格式不兼容,可以手动把prmtop里面提示报错的字符段删除试试。我之前也遇到过,把那些topol fl ...

好的!!感谢您!!!




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