Structure of PDB 4ego Chain B

Receptor sequence

>4egoB (length=393) Species: 316058 (Rhodopseudomonas palustris HaA2)

TIPHLAIDPFSLDFFDDPYPDQQTLRDAGPVVYLDKWNVYGVARYAEVHA
VLNDPTTFCSSRGVGLSDFKKEKPWRPPSLILEADPPAHTRPRAVLSKVL
SPATMKTIRDGFAAAADAKVDELLQRGCIDAIADLAEAYPLSVFPDAMGL
KQEGREHLLPYAGLVFNAFGPPNELRQTAIERSAPHQAYVNEQCQRPNLA
PGGFGACIHAFTDTGEITPDEAPLLVRSLLSAGLDTTVNGIGAAVYCLAR
FPGELQRLRSDPTLARNAFEEAVRFESPVQTFFRTTTREVELGGAVIGEG
EKVLMFLGSANRDPRRWSDPDLYDITRKTSGHVGFGSGVHMCVGQLVARL
EGEVMLSALARKVAAIDIDGPVKRRFNNTLRGLESLPVKLTPA

3D structure

• PDB: 4ego Investigation of the substrate range of CYP199A4: modification of the partition between hydroxylation and desaturation activities by substrate and protein engineering
• Chain: B
• Resolution: 1.76 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): N183 A248 D251 T252 T253 C358 V359 G360 E367 L396
• Catalytic site (residue number reindexed from 1): N167 A232 D235 T236 T237 C342 V343 G344 E351 L380

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	HEM	B	I97 L98 H105 R109 A248 G249 T252 R300 G350 F351 H356 C358 V359 G360	I81 L82 H89 R93 A232 G233 T236 R284 G334 F335 H340 C342 V343 G344
BS02	1F1	B	S95 L98 F182 S244 S247 A248 F298	S79 L82 F166 S228 S231 A232 F282	MOAD: Kd=44.4uM
BS03	1F1	B	L175 G179 D251 R391	L159 G163 D235 R375	MOAD: Kd=44.4uM

Gene Ontology

Molecular Function

• GO:0004497 monooxygenase activity
• GO:0005506 iron ion binding
• GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
• GO:0020037 heme binding
• GO:0046872 metal ion binding

External links

• PDB: RCSB:4ego, PDBe:4ego, PDBj:4ego
• PDBsum: 4ego
• PubMed: 23135838
• UniProt: Q2IU02