Chains and heterogens:
PDB Chain Sequences:
>2fb9A (A:) mefmrvlliaggvspehevsllsaegvlrhipfptdlaviaqdgrwllgekaltaleaka apegehpfppplswerydvvfpllhgrfgedgtvqgflellgkpyvgagvaasalcmdkd lskrvlaqagvpvvpwvavrkgeppvvpfdppffvkpantgssvgisrverfqdleaala lafrydekavvekalspvrelevgvlgnvfgeaspvgevryeapfydyetkytpgraell ipapldpgtqetvqelalkaykvlgvrgmarvdfflaegelylnelntipgftptsmypr lfeaggvaypellrrlvelalt