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4CP3

The structure of BCL6 BTB (POZ) domain in complex with the ansamycin antibiotic rifabutin.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
B-CELL LYMPHOMA 6 PROTEINpolymer12414228.52UniProt (P41182)
Pfam (PF00651)
HOMO SAPIENS (HUMAN)BCL-6, B-CELL LYMPHOMA 5 PROTEIN, BCL-5, PROTEIN LAZ-3, ZINC FINGER AND BTB DOMAIN-CONTAINING PROTEIN 27, ZINC FINGER PROTEIN 51
2C
(B)
RIFABUTINnon-polymer847.01Chemie (RBT)
3D, E
(A, B)
waterwater18.023Chemie (HOH)
Sequence modifications
A, B: 9 - 128 (UniProt: P41182)
PDBExternal DatabaseDetails
Gly 5-expression tag
Ala 6-expression tag
Ser 7-expression tag
Gln 8-expression tag
Arg 67Cys 67engineered mutation
Asn 84Cys 84engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight28457.1
Non-Polymers*Number of molecules1
Total formula weight847.0
All*Total formula weight29304.1
*Water molecules are not included.

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PDB entries from 2025-06-18

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