Chains and heterogens:
PDB Chain Sequences:
>1gaiA (A:) atldswlsneatvartailnnigadgawvsgadsgivvaspstdnpdyfytwtrdsglvi ktlvdlfrngdtdllstiehyissqaiiqgvsnpsgdlssgglgepkfnvdetaytgswg rpqrdgpalratamigfgqwlldngytsaateivwplvrndlsyvaqywnqtgydlweev ngssfftiavqhralvegsafatavgsscswcdsqapqilcylqsfwtgsyilanfdssr sgkdtntllgsihtfdpeagcddstfqpcspralanhkevvdsfrsiytlndglsdseav avgrypedsyyngnpwflctlaaaeqlydalyqwdkqgsleitdvsldffkalysgaatg tyssssstyssivsavktfadgfvsivethaasngslseqfdksdgdelsardltwsyaa lltannrrnsvvppswgetsassvpgtcaatsasgtyssvtvtswpsivatg