Structure of PDB 6v0a Chain E

Receptor sequence

>6v0aE (length=443) Species: 398767 (Trichlorobacter lovleyi SZ)

IPDGTIDPAVWGKNYPEEYQTWKDTALPTPEGKSKYKKGNDGGVYDKLSE
YPFIALLFNGWGFGIEYNEPRGHVYMMKDQKEIDPSRLKGGGACLTCKTP
YAPQLAQKQGVTYFSQSYADAVNQIPKEHQEMGVACIDCHNNKDMGLKIS
RGFTLVKALDKMGVDQTKLTNQDKRSLVCAQCHVTYTIPKDANMKSQDVF
FPWDESKWGKISIENIIKKMRSDKSYGEWTQAVTGFKMAYIRHPEFEMYS
NQSVHWMAGVSCADCHMPYTKVGSKISDHRIMSPLKNDFKGCKQCHSESS
EWLKNQVITIQDRAASQYIRSGYALATVAKLFEMTHKQQAAGKQIDQKMY
DQAKFYYEEGFYRNLFFGAENSIGFHNPTEAMRILGDATMYAGKADGLLR
QALTKAGVDVPVKIDLELSYTNNRGAKKLMFKPEQELKDPYGP

3D structure

• PDB: 6v0a Cytochromecnitrite reductase from the bacteriumGeobacter lovleyirepresents a new NrfA subclass.
• Chain: E
• Resolution: 2.55 Å

Enzymatic activity

• Enzyme Commision number: 1.7.2.2: nitrite reductase (cytochrome; ammonia-forming).

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	E	N103 Q115 R122 C129 C132 K133 C217 H218 Y221 H278 N407	N68 Q80 R87 C94 C97 K98 C182 H183 Y186 H243 N371
BS02	HEC	E	Y49 E52 Y53 W56 A170 C171 C174 H175 M180 L182 N206 R210 M302 K311 I312 S313 H315	Y15 E18 Y19 W22 A135 C136 C139 H140 M145 L147 N171 R175 M267 K275 I276 S277 H279
BS03	HEC	E	P105 R106 H108 Y110 M111 D114 C132 V213 C214 C217 H218 H301 I317 M318	P70 R71 H73 Y75 M76 D79 C97 V178 C179 C182 H183 H266 I281 M282
BS04	HEC	E	S68 K71 H218 E280 Y284 H290 S296 C297 C300 H301 S319 P320 Q347 N407 F411 H412	S34 K37 H183 E245 Y249 H255 S261 C262 C265 H266 S283 P284 Q311 N371 F375 H376
BS05	HEC	E	V289 H290 V295 C300 P320 C328 C331 H332 F411	V254 H255 V260 C265 P284 C292 C295 H296 F375
BS06	HEC	E	H332 E334	H296 E298

Gene Ontology

Molecular Function

• GO:0042279 nitrite reductase (cytochrome, ammonia-forming) activity

Cellular Component

• GO:0042597 periplasmic space

External links

• PDB: RCSB:6v0a, PDBe:6v0a, PDBj:6v0a
• PDBsum: 6v0a
• PubMed: 32518164
• UniProt: B3E641