This a heterodimer formed by two subunits: T0980_s1 and T0980_s2.
The two sequences are given in the file T0980s1_s2_seq.txt, whereas evolutionay constraints are given separately.
In the restraint files (AmbiR, RDC, DIHED) subunit s1 is numbered from 1 to 111, whereas subunit s2 is numbered from 201 to 252 (residue 201 is thus residue 1 of subunit s2 of the sequence file).
