Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
Kinase structure
Kinase:PIK3CA (p110a)
Family:PIK
Group:Atypical
Species:HUMAN
IUPHAR/BPS ID:2153
PDB:4JPS
sc-PDB:
KIDFamMap:Search
Release date:2014-04-02
PubMed: 23726034
Chain:A
(Alternate) Model:B
Orthosteric ligand:1LT
2D structure of the orthosteric ligand
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The orthosteric binding pocket


More entries for 4JPS
4JPSAlternative model: AChain: A


Structural information
DFG conformation:in
αC-helix conformation:in
G-rich loop angle (distance):65.6° (19.7Å)
G-rich loop rotation:77.6°
Quality Score:7.6
Resolution:2.2 Å
Missing Residues:0
Missing Atoms:0
Ligand binding mode
PocketsSubpockets
front
FP-II

Pocket alignment
Uniprot sequence:CRIMSSAKRPLWLIIFKNGDLRQDMLTLQIIRLRMLPYGCLVGLIEVVRSHTIMQIQCKATFI--LGIGDRHNSNIMVHIDFGHF
Sequence structure:CRIMSSAKRPLWLIIFKNGDLRQDMLTLQIIRLRMLPYGCLVGLIEVVRSHTIMQIQCKATFI__LGIGDRHNSNIMVHIDFGHF

Ligand affinity
ChEMBL ID:CHEMBL2396661
Bioaffinities: No (p)Ki/(p)IC50/(p)EC50 values for kinases found (confidence ≥ 8).


Kinase-ligand interaction pattern
Hydrophobic Aromatic face-to-face Aromatic face-to-edge H-bond donor H-bond acceptor Ionic positive Ionic negative
I g.l II III αC
1 C
769
2 R
770
3 I
771
4 M
772
5 S
773
6 S
774
7 A
775
8 K
776
9 R
777
10 P
778
11 L
779
12 W
780
13 L
781
14 I
799
15 I
800
16 F
801
17 K
802
18 N
803
19 G
804
20 D
806
αC b.l IV
21 L
807
22 R
808
23 Q
809
24 D
810
25 M
811
26 L
812
27 T
813
28 L
814
29 Q
815
30 I
816
31 I
817
32 R
818
33 L
831
34 R
832
35 M
833
36 L
834
37 P
835
38 Y
836
39 G
837
40 C
838
IV V GK hinge linker αD αE
41 L
839
42 V
845
43 G
846
44 L
847
45 I
848
46 E
849
47 V
850
48 V
851
49 R
852
50 S
854
51 H
855
52 T
856
53 I
857
54 M
858
55 Q
859
56 I
860
57 Q
861
58 C
862
59 K
863
60 A
907
αE VI c.l VII VIII x
61 T
908
62 F
909
63 I
910
64 _
_
65 _
_
66 L
911
67 G
912
68 I
913
69 G
914
70 D
915
71 R
916
72 H
917
73 N
918
74 S
919
75 N
920
76 I
921
77 M
922
78 V
923
79 H
931
80 I
932
DFG a.l
81 D
933
82 F
934
83 G
935
84 H
936
85 F
937

Interaction pattern search
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