Chains and heterogens:
PDB Chain Sequences:
>1ghrA (A:) igvcygmsannlpaastvvsmfksngiksmrlyapnqaalqavggtginvvvgapndvls nlaaspaaaaswvksniqaypkvsfryvcvgnevaggatrnlvpamknvhgalvaaglgh ikvttsvsqailgvfsppsagsftgeaaafmgpvvqflartnaplmaniypylawaynps amdmgyalfnasgtvvrdgaygyqnlfdttvdafytamgkhggssvklvvsesgwpsggg taatpanarfynqhlinhvgrgtprhpgaietyifamfnenqkdsgveqnwglfypnmqh vypinf