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2C4E

Crystal Structure of Methanocaldococcus jannaschii Nucleoside Kinase - An Archaeal Member of the Ribokinase Family

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0000287molecular_functionmagnesium ion binding
A0005524molecular_functionATP binding
A0005829cellular_componentcytosol
A0006796biological_processphosphate-containing compound metabolic process
A0008906molecular_functioninosine kinase activity
A0009165biological_processnucleotide biosynthetic process
A0009224biological_processCMP biosynthetic process
A0016301molecular_functionkinase activity
A0016740molecular_functiontransferase activity
A0019206molecular_functionnucleoside kinase activity
A0043771molecular_functioncytidine kinase activity
A0106366molecular_functionguanosine kinase activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 360
ChainResidue
AHOH2020
AHOH2058
AHOH2076
AHOH2077
AHOH2078
AHOH2109

Functional Information from PROSITE/UniProt
site_idPS00583
Number of Residues25
DetailsPFKB_KINASES_1 pfkB family of carbohydrate kinases signature 1. GGaAaNTAvgIkKLGvnsellscvG
ChainResidueDetails
AGLY42-GLY66

site_idPS00584
Number of Residues14
DetailsPFKB_KINASES_2 pfkB family of carbohydrate kinases signature 2. DPtGAGDsyrAGFL
ChainResidueDetails
AASP241-LEU254

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: Proton acceptor => ECO:0000305|PubMed:16929110
ChainResidueDetails
AASP247

site_idSWS_FT_FI2
Number of Residues10
DetailsBINDING: BINDING => ECO:0000269|PubMed:16929110, ECO:0007744|PDB:2C49
ChainResidueDetails
AASP17
AASP247
AGLN33
AGLY43
AASN47
AGLN109
ATHR111
AGLN163
AASN186
ATHR214

site_idSWS_FT_FI3
Number of Residues1
DetailsSITE: Transition state stabilizer => ECO:0000305|PubMed:16929110
ChainResidueDetails
AARG250

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1rk2
ChainResidueDetails
AALA245
AGLY246
AASP247
AGLY244

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PDB entries from 2025-06-11

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