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5NN1

The structure of the polo-box domain (PBD) of polo-like kinase 1 (Plk1)

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues78
DetailsDomain: {"description":"POLO box 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00154","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues82
DetailsDomain: {"description":"POLO box 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00154","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsRegion: {"description":"Important for interaction with phosphorylated proteins","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"18691976","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"18691976","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)","evidences":[{"source":"PubMed","id":"23455478","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239149

PDB entries from 2025-07-23

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