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4TL9

Crystal structure of N-terminal C1 domain of KaiC

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D, E...
(A, B, C, D, E...)
Circadian clock protein kinase KaiCpolymer25328393.26UniProt (Q79PF4)
Pfam (PF06745)
Synechococcus elongatus PCC 7942
2G, J, M, P, S...
(A, B, C, D, E...)
MAGNESIUM IONnon-polymer24.36Chemie (MG)
3H, K, N, Q, T...
(A, B, C, D, E...)
CHLORIDE IONnon-polymer35.56Chemie (CL)
4I, L, O, R, U...
(A, B, C, D, E...)
PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTERnon-polymer523.26Chemie (AGS)
5AA, BA, CA, DA, Y...
(C, D, E, F, A...)
waterwater18.0962Chemie (HOH)
Sequence modifications
A, B, C, D, E, F: 1 - 253 (UniProt: Q79PF4)
PDBExternal DatabaseDetails
Thr 48Ser 48engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains6
Total formula weight170359.4
Non-Polymers*Number of molecules18
Total formula weight3498.0
All*Total formula weight173857.4
*Water molecules are not included.

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PDB entries from 2025-12-17

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