Title ofprogram: POETA Method of solution Optimization, under an energy criterion, by rotation around the Catalogue number: AABU bonds Ca~C',C-N, N_Ca and Ca~C 8(see fig. 1). Program obtainable from: CPC Program Library, Queen's Urn-Restrictions on the complexity of the problem versity of Belfast, N. Ireland (see application form in this issue)
Only proteins involving the amino acids ala, arg, asn, asp, cys, glu, gln, gly, his, ile, leu, met, phe, pro, ser, thr, trp, tyr and val Computer: Amdahl 580/5860 and IBM-type computers; Inslal-may be studied. Tha amino acid sequence of the protein must lation: University of Alberta Computing Services be known.
Operating system: MTS Typical running time Dependent on the size of the protein and the level of optimiza-Programming language used: Fortran IV tion used.
High speed storage required: 0.6 Mwords
Unusual features of the program
The graphic representation of the protein may be obtained No. of bits in a word: 32 from the Cartesian coordinates of its atoms, produced by this program. The plotting subroutines, available at the institution Peripherals used: disks, printer where the program will be run, may be used for this purpose.
No. of lines in combined program and test deck: 7746 References
[1] S. Fraga and B. Singh, in: The Molecular Basis of Cancer: