Structure of PDB 5lo9 Chain B

Receptor sequence

>5lo9B (length=469) Species: 765910 (Marichromatium purpuratum 984)

PFERGRTLAEQGDAARGIVACAGCHRADGGGDEALGAARLAGLEPAYLAT
QIERFRAGQRSHPVMSPWAERLTPVDIAAVSAYYGALAPASNARAPSDVD
AAAGRALAETGDWPERDLPACVRCHGPGGVGAGAVFPPLAGQPYSYLLAQ
LQAWGTGRRHGEPMALMGAVAGRLDADEQRALAAYFATRPLAAASRFTPP
SRDALPEGPLGEMVRLGARLFRHTNTDPRSAPHVGNDQTCAGCHLDNGRR
ADASPMWAAWVAYPAYRGKNQRVDTMAERIQGCFRYSMNAQDSVSGQVPE
TNGLVLDALQSYIFWLATGAPTGDTAMSGRGYPRLQPPAEGFDRTRGAAL
YAEHCALCHGAEGEGLLVDGEVVFPPLWGPRSYNWGAGMHRVDTAAAFIA
ANMPLLDTVRLTPQEAWDVAAYINAHERPQDPRFDGSVERTAARFHASPF
DLYGEPLGVDGAVLGQGVA

3D structure

• PDB: 5lo9 Electron Accepting Units of the Diheme Cytochrome c TsdA, a Bifunctional Thiosulfate Dehydrogenase/Tetrathionate Reductase.
• Chain: B
• Resolution: 2.75 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	B	C21 C24 H25 G36 L40 Y47 F55 R60 H62 V64 M65 W68 V80 Y146 Q150	C21 C24 H25 G36 L40 Y47 F55 R60 H62 V64 M65 W68 V80 Y146 Q150
BS02	HEC	B	Y47 Q51 R54 C121 C124 H125 V135 F136 P137 L139 Y146 W154 R159 E162 L166 M167	Y47 Q51 R54 C121 C124 H125 V135 F136 P137 L139 Y146 W154 R159 E162 L166 M167
BS03	HEC	B	C287 C290 H291 M303 A306 Y310 R326 C330 S334 R377 Y379 Y430 M436	C240 C243 H244 M256 A259 Y263 R279 C283 S287 R330 Y332 Y383 M389
BS04	HEC	B	R123 R269 Q285 G289 C290 H401 C402 C405 H406 F421 P422 Y430 F445 I446 M450 P451	R123 R222 Q238 G242 C243 H354 C355 C358 H359 F374 P375 Y383 F398 I399 M403 P404
BS05	THJ	B	R326 C330 S334	R279 C283 S287

Gene Ontology

Molecular Function

• GO:0009055 electron transfer activity
• GO:0020037 heme binding
• GO:0046872 metal ion binding

External links

• PDB: RCSB:5lo9, PDBe:5lo9, PDBj:5lo9
• PDBsum: 5lo9
• PubMed: 27694441
• UniProt: W0DW89