4CQG Chain A
Maternal embryonic leucine zipper kinase (MELK)
Active — 58.4%DFG-inαC-inType1 · OT5
Resolution
2.57 Å
R-value
0.207
Predicted activity confidence58.4%
Structure info
Alternate conformation—
Missing atoms0
Missing residues0
Salt bridge (KinCore)Saltbr-in
Sequence info
PDB sequence
KDYDELLKYYELYETIGTGGFAKVKLACHVLTGEMVAIKIMDKNALGSDLPRVKTEIDALKSLRHQHICQLYHVLETKNKIFMVLEYCPGGELFDYIISQDRLSEEETRVVFRQILSAVAYVHSQGYAHRDLKPENLLFDENHKLKLIDFGLCAKCGSLAYAAPELIQGSEADVWSMGILLYVLMCGFLPFDDDNVMALYKKIMRGKYEVPKWLSPSSILLLQQMLQVDPKKRISMRNLLNHPWVMQDYSCPVEWQSKTPLTHLDEDCVTELSVHHRSSRQTMEDLISSWQYDHLTATYLLLLAKKARLEHHH
UniProt reference sequence
YELHETIGTGGFAKVKLACHILTGEMVAIKIMDKNTLGSDLPRIKTEIEALKNLRHQHICQLYHVLETANKIFMVLEYCPGGELFDYIISQDRLSEEETRVVFRQIVSAVAYVHSQGYAHRDLKPENLLFDEYHKLKLIDFGLCAKPKGNKDYHLQTCCGSLAYAAPELIQGKSYLGSEADVWSMGILLYVLMCGFLPFDDDNVMALYKKIMRGKYDVPKWLSPSSILLLQQMLQVDPKKRISMKNLLNHPWI
Aligned reference sequence
YELH----------------ETIGTGG----------------FAKVKLACH--IL------------------------------------TGEMVAIKIMD--KNTLGSD---------------------------LPRIKTEIEALKNL--------------------------RHQHICQLYHVLETAN--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------KIFMVLEYCPG--------------GELFDYIIS--QD-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RLSEEETRVVFRQIVSAVAYVHSQ---------------------------------------------GYAHRDL-----KPENLLFDE--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------YHKLKLIDFGLCAKPKGNKDY--HL--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------QTCCGSLAYAAPELIQG--------------------------------KSYLGSEADVWSMGILLYVLMCG-----------------FLPFDD--------------------------------------------------DNVMALYKKIMRG--KYDVPKWLS------------------------------------------------------------------------------------------------------PSSILLLQQMLQVDPKKRIS--------------MKNLLNHPWI
Shaded segments mark residues present in the UniProt reference but not resolved in this structure.
Projected alignment
YELY----------------ETIGTGG----------------FAKVKLACH--VL------------------------------------TGEMVAIKIMD--KNALGSD---------------------------LPRVKTEIDALKSL--------------------------RHQHICQLYHVLETKN--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------KIFMVLEYCPG--------------GELFDYIIS--QD-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RLSEEETRVVFRQILSAVAYVHSQ---------------------------------------------GYAHRDL-----KPENLLFDE--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------NHKLKLIDFGLCAK----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CGSLAYAAPELIQ-------------------------------------GSEADVWSMGILLYVLMCG-----------------FLPFDD--------------------------------------------------DNVMALYKKIMRG--KYEVPKWLS------------------------------------------------------------------------------------------------------PSSILLLQQMLQVDPKKRIS--------------MRNLLNHPWH
Activation segment
DFGLCAK----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CGSLAYAAPE
Binding pocket
ETIGTGGFAKVKLVAIKIMRVKTEIDALKSLRQHICQLYHVFMVLEYCPGGELFDYIISYVHSQGYAHRDLKPENLLFLIDFGLC
Ligand info
Orthosteric ligand
OT5
Allosteric ligand
None
Ligand typeType1
Consensus conformation
DFG conformationin
αC-helix conformationin
Predicted activityactive
KinaDB — structure detail · data from Browse_each_pdb_structure.csv · PDB 4CQG, Chain A