Chains and heterogens:
PDB Chain Sequences:
>1b12A (A:) rsfiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkyp edpkldyikravglpgdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtf srrnggeatsgffevpknetkengirlserketlgdvthriltvpiaqdqvgmyyqqpgq qlatwivppgqyfmmgdnrdnsadsrywgfvpeanlvgrataiwmsfdkqegewptglrl sriggih
>1b12A (A:) rsfiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkyp edpkldyikravglpgdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtf srrnggeatsgffevpknetkengirlserketlgdvthriltvpiaqdqvgmyyqqpgq qlatwivppgqyfmmgdnrdnsadsrywgfvpeanlvgrataiwmsfdglrlsriggih
>1b12B (B:) fiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkyped pkldyikravglpgdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtfsr rnggeatsgffevpknetkengirlserketlgdvthriltvpiaqdqvgmyyqqpgqql atwivppgqyfmmgdnrdnsadsrywgfvpeanlvgrataiwmsfdkqegewptglrlsr iggih
>1b12B (B:) fiyepfqipsgsmmptlligdfilvekfghpkrgdivvfkypedpkldyikravglpgdk vtydpvskeltiqpgccenalpvtysnvepsdfvqtfsreatsgffevpknetkengirl serketlgdvthriltvpiaqdqvgmyyqqpgqqlatwivppgqyfmmgdnrdnsadsry wgfvpeanlvgrataiwmsfdlrlsriggih
>1b12C (C:) sfiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkype dpkldyikravglpgdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtfs rrnggeatsgffevpknetkengirlserketlgdvthriltvpiaqdqvgmyyqqpgqq latwivppgqyfmmgdnrdnsadsrywgfvpeanlvgrataiwmsfdkqegewptglrls riggih
>1b12C (C:) sfiyepfqipsgsmmptlligdfilvekfatghpkrgdivvfkypedpkldyikravglp gdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtfsatsgffevpknetk engirlserketlgdvthriltvpiaqdqvgmyyqqpgqqlatwivppgqyfmmgdnrdn sadsrywgfvpeanlvgrataiwmsfdkqegewptglrlsriggih
>1b12D (D:) rsfiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkyp edpkldyikravglpgdkvtydpvskeltiqpgcssgqacenalpvtysnvepsdfvqtf srrnggeatsgffevpknetkengirlserketlgdvthriltvpiaqdqvgmyyqqpgq qlatwivppgqyfmmgdnrdnsadsrywgfvpeanlvgrataiwmsfdkqegewptglrl sriggih
>1b12D (D:) rsfiyepfqipsgsmmptlligdfilvekfaygikdpiyqktlietghpkrgdivvfkyp edpkldyikravglpgdkvtydpvskeltiqpalpvtysnvepsdfvqtfstsgffevpk netkengirlserketlgdvthriltvpiaqdqvgmyyqqpgqqlatwivppgqyfmmgd nrdnsadsrywgfvpeanlvgrataiwmsfdglrlsriggih