Chains and heterogens:
PDB Chain Sequences:
>1espA (A:) vtgtnkvgtgkgvlgdtkslnttlsgssyylqdntrgatiftydaknrstlpgtlwadad nvfnaaydaaavdahyyagktydyykatfnrnsindagaplkstvhygsnynnafwngsq mvygdgdgvtftslsggidvighslthavtenssnliyqnesgalneaisdifgtlvefy dnrnpdweigediytpgkagdalrsmsdptkygdpdhyskrytgssdnggvhtnsgiink qayllanggthygvtvtgigkdklgaiyyrantqyftqsttfsqaragavqaaadlygan saevaavkqsfsavgvn