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{{STRUCTURE_1day|  PDB=1day  |  SCENE=  }}  
{{STRUCTURE_1day|  PDB=1day  |  SCENE=  }}  


'''CRYSTAL STRUCTURE OF A BINARY COMPLEX OF PROTEIN KINASE CK2 (ALPHA-SUBUNIT) AND MG-GMPPNP'''
===CRYSTAL STRUCTURE OF A BINARY COMPLEX OF PROTEIN KINASE CK2 (ALPHA-SUBUNIT) AND MG-GMPPNP===




==Overview==
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The structures of the catalytic subunit of protein kinase CK2 from Zea mays complexed with Mg2+ and with analogs of ATP or GTP were determined to 2.2 A resolution. Unlike most other protein kinases, CK2 from various sources shows 'dual-cosubstrate specificity', that is, the ability to efficiently use either ATP or GTP as a cosubstrate. The structures of these complexes demonstrate that water molecules are critical to switch the active site of CK2 from an ATP- to a GTP-compatible state. An understanding of the structural basis of dual-cosubstrate specificity may help in the design of drugs that target CK2 or other kinases with this property.
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==About this Structure==
==About this Structure==
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[[Category: Dual-cosubstrate specificity]]
[[Category: Dual-cosubstrate specificity]]
[[Category: Protein kinase ck2]]
[[Category: Protein kinase ck2]]
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