Structure of PDB 1b4u Chain B

Receptor sequence
>1b4uB (length=298) Species: 13689 (Sphingomonas paucimobilis) [Search protein sequence]
ARVTTGITSSHIPALGAAIQTGTSDNDYWGPVFKGYQPIRDWIKQPGNMP
DVVILVYNDHASAFDMNIIPTFAIGCAETFKPADEGWGPRPVPDVKGHPD
LAWHIAQSLILDEFDMTIMNQMDVDHGCTVPLSMIFGEPEEWPCKVIPFP
VNVVTYPPPSGKRCFALGDSIRAAVESFPEDLNVHVWGTGGMSHQLQGPR
AGLINKEFDLNFIDKLISDPEELSKMPHIQYLRESGSEGVELVMWLIMRG
ALPEKVRDLYTFYHIPASNTALGAMILQPEETAGTPLEPRKVMSGHSL
3D structure
PDB1b4u Crystal structure of an aromatic ring opening dioxygenase LigAB, a protocatechuate 4,5-dioxygenase, under aerobic conditions.
ChainB
Resolution2.2 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) H12 H61 H195 E242
Catalytic site (residue number reindexed from 1) H11 H60 H194 E241
Enzyme Commision number 1.13.11.8: protocatechuate 4,5-dioxygenase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 FE B H12 H61 E242 H11 H60 E241
BS02 DHB B P14 H61 H127 H195 S269 N270 T271 P13 H60 H126 H194 S268 N269 T270
Gene Ontology
Molecular Function
GO:0008198 ferrous iron binding
GO:0016491 oxidoreductase activity
GO:0018579 protocatechuate 4,5-dioxygenase activity
GO:0051213 dioxygenase activity
Biological Process
GO:0009056 catabolic process

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:1b4u, PDBe:1b4u, PDBj:1b4u
PDBsum1b4u
PubMed10467151
UniProtP22636|PCYB_SPHSK Protocatechuate 4,5-dioxygenase beta chain (Gene Name=ligB)

[Back to BioLiP]