CONECT records in pdb files?

[Dr Sue Brown]

I have a PDB file of a protein structure, and I need to generate a
complete set of CONECT records from the coordinates, including the
backbone connectivities. 
Are there any program utilities available to do this?
If not, any other suggestions?

Any help appreciated,

Sue

Dr Sue Brown
email: sebrown at laue.biochem.ubc.ca
Dept of Biochemistry, University of British Columbia
Vancouver, Canada, V6T 1Z3