Structure of PDB 3nxq Chain B

Receptor sequence

>3nxqB (length=610) Species: 9606 (Homo sapiens)

LDPGLQPGQFSADEAGAQLFAQSYQSSAEQVLFQSVAASWAHDTNITAEN
ARRQEEAALLSQEFAEAWGQKAKELYEPIWQQFTDPQLRRIIGAVRTLGS
ANLPLAKRQQYNALLSQMSRIYSTAKVCLPQKTATCWSLDPDLTNILASS
RSYAMLLFAWEGWHNAAGIPLKPLYEDFTALSNEAYKQDGFTDTGAYWRS
WYNSPTFEDDLEHLYQQLEPLYLNLHAFVRRALHRRYGDRYINLRGPIPA
HLLGDMWAQSWENIYDMVVPFPDKPNLDVTSTMLQQGWQATHMFRVAEEF
FTSLELSPMPPEFWEGSMLEKPADGREVVCHASAWDFYNRKDFRIKQCTR
VTMDQLSTVHHEMGHIQYYLQYKDLPVSLRRGANPGFHEAIGDVLALSVS
TPEHLHKIGLLDRVTNDTESDINYLLKMALEKIAFLPFGYLVDQWRWGVF
SGRTPPSRYNFDWWYLRTKYQGICPPVTRNETHFDAGAKFHVPNVTPYIR
YFVSFVLQFQFHEALCKEAGYEGPLHQCDIYRSTKAGAKLRKVLRAGSSR
PWQEVLKDMVGLDALDAQPLLKYFQLVTQWLQEQNQQNGEVLGWPEYQWH
PPLPDNYPEG

3D structure

• PDB: 3nxq The N domain of human angiotensin-I-converting enzyme: the role of N-glycosylation and the crystal structure in complex with an N domain-specific phosphinic inhibitor, RXP407.
• Chain: B
• Resolution: 1.99 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): H331 A332 H361 E362 H365 E389 H491 Y501
• Catalytic site (residue number reindexed from 1): H331 A332 H361 E362 H365 E389 H491 Y501
• Enzyme Commision number: 3.4.15.1: peptidyl-dipeptidase A.

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	ZN	B	H361 H365 E389	H361 H365 E389
BS02	RX4	B	Q259 H331 A332 S333 A334 H361 E362 H365 Y369 R381 E389 K489 F490 H491 T496 Y498 Y501	Q259 H331 A332 S333 A334 H361 E362 H365 Y369 R381 E389 K489 F490 H491 T496 Y498 Y501

Gene Ontology

Molecular Function

• GO:0008237 metallopeptidase activity
• GO:0008241 peptidyl-dipeptidase activity

Biological Process

• GO:0006508 proteolysis

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:3nxq, PDBe:3nxq, PDBj:3nxq
• PDBsum: 3nxq
• PubMed: 20826823
• UniProt: P12821|ACE_HUMAN Angiotensin-converting enzyme (Gene Name=ACE)