6H7Z

X-ray structure of human glutamate carboxypeptidase II (GCPII) in complex with a inhibitor RNA 2-65-1

• PDB DOI: https://doi.org/10.2210/pdb6H7Z/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Drosophila melanogaster
• Mutation(s): No 


• Deposited: 2018-07-31 Released: 2018-12-05 
• Deposition Author(s): Motlova, L., Novakova, Z., Barinka, C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.206 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 

Starting Model: experimental

Literature

2-Aminoadipic Acid-C(O)-Glutamate Based Prostate-Specific Membrane Antigen Ligands for Potential Use as Theranostics.

Nakajima, R., Novakova, Z., Tueckmantel, W., Motlova, L., Barinka, C., Kozikowski, A.P.

(2018) ACS Med Chem Lett 9: 1099-1104

• PubMed: 30429952 
• DOI: https://doi.org/10.1021/acsmedchemlett.8b00318
• Primary Citation of Related Structures:  
  5OF0, 6H7Y, 6H7Z, 6HKJ, 6HKZ


• PubMed Abstract: 
  

  The design and synthesis of prostate specific membrane antigen (PSMA) ligands derived from 2-aminoadipic acid, a building block that has not previously been used to construct PSMA ligands, are reported. The effects of both the linker length and of an N-substituent of our PSMA ligands were probed, and X-ray structures of five of these ligands bound to PSMA were obtained. Among the ligands disclosed herein, 13b showed the highest inhibitory activity for PSMA. As ligand 13b can readily be radiolabeled since its fluorine atom is adjacent to the nitrogen atom of its pyridine ring, the use of this and related compounds as theranostics can be pursued.

---

Organizational Affiliation: 

Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois 60612, United States.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 84.49 kDa 
• Atom Count: 6,893 
• Modelled Residue Count: 695 
• Deposited Residue Count: 707 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate carboxypeptidase 2	A	707	Homo sapiens	Mutation(s): 0  Gene Names: FOLH1, FOLH, NAALAD1, PSM, PSMA, GIG27 EC: 3.4.17.21
UniProt & NIH Common Fund Data Resources
Find proteins for Q04609 (Homo sapiens) Explore Q04609  Go to UniProtKB:  Q04609
PHAROS:  Q04609 GTEx:  ENSG00000086205
Glycosylation
Glycosylation Sites: 7		Go to GlyGen: Q04609-1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B, C, D, E	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	F	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G15407YE GlyCosmos:  G15407YE GlyGen:  G15407YE

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	G	5		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22768VO GlyCosmos:  G22768VO GlyGen:  G22768VO

Small Molecules

Ligands 8 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FVW (Subject of Investigation/LOI)	W [auth A]	(2~{S})-2-[[(2~{S})-6-[(6-fluoranylpyridin-3-yl)-methyl-amino]-1-oxidanyl-1,6-bis(oxidanylidene)hexan-2-yl]carbamoylamino]pentanedioic acid C18 H23 F N4 O8 UUDMXDXHNXMSOT-RYUDHWBXSA-N
NAG	L [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
TRS	T [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
PEG	M [auth A], U [auth A], V [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
ZN	H [auth A], I [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
EDO	N [auth A], O [auth A], P [auth A], Q [auth A], R [auth A], S [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CA	J [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
CL	K [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Binding Affinity Annotations
ID	Source	Binding Affinity
FVW	BindingDB:  6H7Z	IC50: 0.08 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.206 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 101.222	α = 90
b = 130.389	β = 90
c = 158.469	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
Aimless	data scaling
REFMAC	phasing
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-12-05 
Deposition Author(s): Motlova, L., Novakova, Z., Barinka, C.

Revision History  

• Version 1.0: 2018-12-05
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2024-01-17
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary