Structure of PDB 3pxt Chain A

Receptor sequence

>3pxtA (length=354) Species: 318586 (Paracoccus denitrificans PD1222)

ADDALAALGAQLFVDPALSRNATQSCATCHDPARAFTDPREGKAGLAVSV
GDDGQSHGDRNTPTLGYAALVPAFHRDANGKYKGGQFWDGRADDLKQQAG
QPMLNPVEMAMPDRAAVAARLRDDPAYRTGFEALFGKGVLDDPERAFDAA
AEALAAYQATGEFSPFDSKYDRVMRGEEKFTPLEEFGYTVFITWNCRLCH
MQRKQGVAERETFTNFEYHNIGLPVNETAREASGLGADHVDHGLLARPGI
EDPAQSGRFKVPSLRNVAVTGPYMHNGVFTDLRTAILFYNKYTSRRPEAK
INPETGAPWGEPEVARNLSLAELQSGLMLDDGRVDALVAFLETLTDRRYE
PLLE

3D structure

• PDB: 3pxt Crystal Structures of CO and NO Adducts of MauG in Complex with Pre-Methylamine Dehydrogenase: Implications for the Mechanism of Dioxygen Activation.
• Chain: A
• Resolution: 2.16 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	HEC	A	Q29 C31 C34 H35 R65 T67 P68 L70 Q91 F92 W93 R96 Q103 P107 M114 K265	Q24 C26 C29 H30 R60 T62 P63 L65 Q86 F87 W88 R91 Q98 P102 M109 K260
BS02	HEC	A	N200 C201 C204 H205 H224 I226 L228 F264 P267 L269 V272 Y278 M279 H280 Y294	N195 C196 C199 H200 H219 I221 L223 F259 P262 L264 V267 Y273 M274 H275 Y289
BS03	CA	A	N66 T275 P277	N61 T270 P272

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:3pxt, PDBe:3pxt, PDBj:3pxt
• PDBsum: 3pxt
• PubMed: 21355604
• UniProt: Q51658|MAUG_PARDP Methylamine utilization protein MauG (Gene Name=mauG)