Structure of PDB 4y5r Chain B

Receptor sequence

>4y5rB (length=355) Species: 318586 (Paracoccus denitrificans PD1222)

ADDALAALGAQLFVDPALSRNATQSCATCHDPARAFTDPREGKAGLAVSV
GDDGQSHGDRNAPTLGYAALVPAFHRDANGKYKGGQFWDGRADDLKQQAG
QPMLNPVEMAMPDRAAVAARLRDDPAYRTGFEALFGKGVLDDPERAFDAA
AEALAAYQATGEFSPFDSKYDRVMRGEEKFTPLEEFGYTVFITWNCRLCH
MQRKQGVAERETFTNFEYHNIGLPVNETAREASGLGADHVDHGLLARPGI
EDPAQSGRFKVPSLRNVAVTGPYMHNGVFTDLRTAILFYNKYTSRRPEAK
INPETGAPWGEPEVARNLSLAELQSGLMLDDGRVDALVAFLETLTDRRYE
PLLEE

3D structure

• PDB: 4y5r A T67A mutation in the proximal pocket of the high-spin heme of MauG stabilizes formation of a mixed-valent Fe(II)/Fe(III) state and enhances charge resonance stabilization of the bis-Fe(IV) state.
• Chain: B
• Resolution: 2.8 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): E113
• Catalytic site (residue number reindexed from 1): E108
• Enzyme Commision number: 1.-.-.-

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	CA	B	N66 T275 P277	N61 T270 P272
BS02	HEC	B	Q29 C31 C34 H35 R65 N66 A67 P68 L70 Q91 F92 W93 R96 Q103 P107 M114 L159 Q163 K265	Q24 C26 C29 H30 R60 N61 A62 P63 L65 Q86 F87 W88 R91 Q98 P102 M109 L154 Q158 K260
BS03	HEC	B	W93 N200 C201 C204 H205 L228 P267 V272 Y278 M279 H280 Y294 E327	W88 N195 C196 C199 H200 L223 P262 V267 Y273 M274 H275 Y289 E322

Gene Ontology

Molecular Function

• GO:0004130 cytochrome-c peroxidase activity
• GO:0009055 electron transfer activity
• GO:0016491 oxidoreductase activity
• GO:0020037 heme binding
• GO:0046872 metal ion binding

Biological Process

• GO:0098869 cellular oxidant detoxification

Cellular Component

• GO:0042597 periplasmic space

External links

• PDB: RCSB:4y5r, PDBe:4y5r, PDBj:4y5r
• PDBsum: 4y5r
• PubMed: 25896561
• UniProt: Q51658|MAUG_PARDP Methylamine utilization protein MauG (Gene Name=mauG)