What is it?

Macromolecular structure pdb files that represent multimeric molecules often do not contain the coordinates of all multimer subunits. For such files, MakeMultimer.py calculates the coordinates of the missing subunits from the BIOMT transformation matrices contained in the pdb file.

How to use it?

MakeMultimer.py takes a pdb file as its input and generates one or more pdb files - one for each biomolecule specified in the input file - as its output.

You can either upload a file from your computer, or specify the ID of a pdb record, which will then be retrieved from the protein data bank.

Finally, you can also download the program and run it on your own machine. That is particularly advisable with files that will produce large output – this server has limited memory and may choke on these.

For additional detail, see the docs.