4BZR

Human testis angiotensin converting enzyme in complex with K-26

• PDB DOI: https://doi.org/10.2210/pdb4BZR/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Cricetulus griseus
• Mutation(s): No 


• Deposited: 2013-07-29 Released: 2014-02-26 
• Deposition Author(s): Kramer, G.J., Mohd, A., Schwager, S.L.U., Masuyer, G., Acharya, K.R., Sturrock, E.D., Bachmann, B.O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 0.252 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 70.11 kDa 
• Atom Count: 5,175 
• Modelled Residue Count: 581 
• Deposited Residue Count: 589 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ANGIOTENSIN-CONVERTING ENZYME	A	589	Homo sapiens	Mutation(s): 0  EC: 3.2.1 (PDB Primary Data), 3.4.15.1 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P12821 (Homo sapiens) Explore P12821  Go to UniProtKB:  P12821
PHAROS:  P12821 GTEx:  ENSG00000159640

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	B	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G32152BH GlyCosmos:  G32152BH GlyGen:  G32152BH

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K26	E [auth A]	N-ACETYL-L-ILE-L-TYR-(R)-1-AMINO-2-(4-HYDROXYPHENYL)ETHYLPHOSPHONIC ACID C25 H34 N3 O8 P ZFRNBYWFOLDQKG-FDMHNHSTSA-N
PE4	D [auth A]	2-{2-[2-(2-{2-[2-(2-ETHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL C16 H34 O8 PJWQOENWHPEPKI-UHFFFAOYSA-N
NAG	I [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
ZN	H [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
ACT	C [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
CL	F [auth A], G [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Binding Affinity Annotations
ID	Source	Binding Affinity
K26	BindingDB:  4BZR	Ki: min: 11, max: 75 (nM) from 2 assay(s)
		IC50: min: 11, max: 110 (nM) from 2 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 0.252 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.25	α = 90
b = 84.505	β = 90
c = 133.481	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-02-26 
Deposition Author(s): Kramer, G.J., Mohd, A., Schwager, S.L.U., Masuyer, G., Acharya, K.R., Sturrock, E.D., Bachmann, B.O.

Revision History  

• Version 1.0: 2014-02-26
  Type: Initial release
  
• Version 1.1: 2014-06-18
  Changes: Database references
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2023-12-20
  Changes: Data collection, Database references, Refinement description, Structure summary