4IQC

P3121 crystal form of FKBP12.6

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Peptidyl-prolyl cis-trans isomerase FKBP1B	polymer	107	11673.3	2	UniProt (P68106) Pfam (PF00254)	Homo sapiens (human)	PPIase FKBP1B, 12.6 kDa FK506-binding protein, 12.6 kDa FKBP, FKBP-12.6, FK506-binding protein 1B, FKBP-1B, Immunophilin FKBP12.6, Rotamase, h-FKBP-12
2	C, D (A, B)	water	water		18.0	111	Chemie (HOH)

Sequence modifications

A, B: 1 - 107 (UniProt: P68106)

PDB	External Database	Details
Val 22	Cys 23	engineered mutation
Ile 76	Cys 77	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	23346.6
All*	Total formula weight	23346.6

*Water molecules are not included.