Structure of PDB 4b2n Chain A

Receptor sequence

>4b2nA (length=648) Species: 230757 (Xanthomonas sp. 35Y)

ALPLLDQASIRSPLMVGCNGKPDSTPLPVDPRSLVKQGVNSNPNAALQFN
AYFVDLHNPPPPFVNRLPPRPTTCGQFRASATRGRVNLEERQFFQPMALA
TSYHFIFLQWGYLIRPPDFEEQVSKRYGLYPAPFRNPYPLPGEDPNQTNG
GSGQLPLGLIQGKDDNGRWTGLIGASCSACHDSRLGTASEASFKWGLPNS
ANDAGLLASDMFRTTPITALGNLLPLPWSTGRGSSDAIGLISLLPALFDM
ETLTLAPSLLEYVADAPHAGMTKAPAWWARAFKTRQFWDGSLSSDNVHSE
MAFGVANIFRDANARRGLEDEFEDINNFLISLSPATYPKTINTALAEQGA
VIYHERDLWASGANGAIPKPAGNGSCASCHGVYSPRHAADPNYLPDPRLK
GVAAVVTPIETIRTDPRRMRLMADERQRRAWNSGWWAYNNLSPSWTGYPS
DNIVASELRRVPRAIYNNGGPIYSPLGPNIWEEPTGYIAPPLYGAWATAP
YFHNGSVPNLWGVLKPSDRPKLWKRPYTAAGIGGKNAGYDYSFASYDWQK
LGWKYTAVACNNSIFTSPFLPCTHNMATIDILYSMWDNVAAQYLNLAYQS
PPPITDQQIKSRMVYNSYLYGNDNGGHDFTQSLTDSERWALIEYIKTL

3D structure

• PDB: 4b2n Structure of the processive rubber oxygenase RoxA from Xanthomonas sp.
• Chain: A
• Resolution: 1.8 Å

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	C191 C194 H195 S249 A251 I252 T286 K287 A288 P289 W291 R294 K297 Q300 F301 W302 E314 F317 F336 R432	C177 C180 H181 S235 A237 I238 T272 K273 A274 P275 W277 R280 K283 Q286 F287 W288 E300 F303 F322 R418
BS02	HEC	A	C390 C393 H394 T421 I426 T428 Y501 I502 A503 P504 L506 Y515 F516 H517 L524 V527 H641 F643	C376 C379 H380 T407 I412 T414 Y487 I488 A489 P490 L492 Y501 F502 H503 L510 V513 H627 F629

Gene Ontology

Molecular Function

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

Biological Process

• GO:0098869 cellular oxidant detoxification

External links

• PDB: RCSB:4b2n, PDBe:4b2n, PDBj:4b2n
• PDBsum: 4b2n
• PubMed: 23922395
• UniProt: Q7X0P3