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2XX3

HUMAN THYMIDYLATE KINASE COMPLEXED WITH thymidine butenyl phosphonate monophosphate and ADP

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
THYMIDYLATE KINASEpolymer23226027.71UniProt (P23919)
Pfam (PF02223)
HOMO SAPIENS (HUMAN)DTMP KINASE
2B
(A)
ADENOSINE-5'-DIPHOSPHATEnon-polymer427.21Chemie (ADP)
3C
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
4D
(A)
N1-[(E)-4-DIHYDROXYPHOSPHONYL-BUT-2-ENYL]-THYMINEnon-polymer340.21Chemie (TAE)
5E
(A)
NITRATE IONnon-polymer62.01Chemie (NO3)
6F
(A)
waterwater18.0203Chemie (HOH)
Sequence modifications
A: 1 - 212 (UniProt: P23919)
PDBExternal DatabaseDetails
Met -19-expression tag
Gly -18-expression tag
Ser -17-expression tag
Ser -16-expression tag
His -15-expression tag
His -14-expression tag
His -13-expression tag
His -12-expression tag
His -11-expression tag
His -10-expression tag
Ser -9-expression tag
Ser -8-expression tag
Gly -7-expression tag
Leu -6-expression tag
Val -5-expression tag
Pro -4-expression tag
Arg -3-expression tag
Gly -2-expression tag
Ser -1-expression tag
His 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight26027.7
Non-Polymers*Number of molecules4
Total formula weight853.7
All*Total formula weight26881.4
*Water molecules are not included.

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PDB entries from 2025-12-17

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