3RJ7 | pdb_00003rj7

Human carbonic anhydrase II complexed with its inhibitor rhenium(I)triscarbonyl-cyclopentadienyl-carboxy-4-aminomethylbenzene-sulfonamide

• PDB DOI: https://doi.org/10.2210/pdb3RJ7/pdb

• Classification: LYASE/LYASE INHIBITOR
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2011-04-15 Released: 2012-02-29 
• Deposition Author(s): Spingler, B., Can, D., Alberto, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 
  0.190 (Depositor), 0.186 (DCC) 
• R-Value Work: 
  0.166 (Depositor), 0.166 (DCC) 

Starting Model: experimental

Literature

[(Cp-R)M(CO)(3) ] (M=Re or (99m) Tc) Arylsulfonamide, Arylsulfamide, and Arylsulfamate Conjugates for Selective Targeting of Human Carbonic Anhydrase IX.

Can, D., Spingler, B., Schmutz, P., Mendes, F., Raposinho, P., Fernandes, C., Carta, F., Innocenti, A., Santos, I., Supuran, C.T., Alberto, R.

(2012) Angew Chem Int Ed Engl 51: 3354-3357

• PubMed: 22344779 
• DOI: https://doi.org/10.1002/anie.201107333
• Primary Citation Related Structures: 
  3RJ7


• PubMed Abstract: 
  

  Enhanced receptor selectivity: carbonic anhydrase inhibitors are relevant for both cancer diagnosis and therapy. Combining non-radioactive Re compounds with their radioactive (99m)Tc homologs enables the use of identical molecules for therapy and imaging (theragnostic). The syntheses and in vitro evaluation of [(Cp-R)M(CO)(3)] (Cp=cyclopentadienyl, M=Re, (99m)Tc) with R being a highly potent carbonic-anhydrase-targeting vector is reported.

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Organizational Affiliation: 
• Institute of Inorganic Chemistry, University of Zurich, Switzerland.

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: 30.63 kDa 
• Atom Count: 2,509 
• Modeled Residue Count: 258 
• Deposited Residue Count: 258 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	258	Homo sapiens	Mutation(s): 0  EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens) Explore P00918  Go to UniProtKB:  P00918
PHAROS:  P00918 GTEx:  ENSG00000104267

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
RCS	D [auth A], E [auth A]	triscarbonyl-cyclopentadienyl-carboxy-4-aminomethylbenzene-sulfonamide rhenium(I) C16 H13 N2 O6 Re S RMIPOUPNRFHFRY-UHFFFAOYSA-N
MBO	C [auth A]	MERCURIBENZOIC ACID C7 H5 Hg O2 FVFZSVRSDNUCGG-UHFFFAOYSA-N
DMS	F [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free:  0.190 (Depositor), 0.186 (DCC) 
• R-Value Work:  0.166 (Depositor), 0.166 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.243	α = 90
b = 41.639	β = 104.55
c = 72.107	γ = 90

Software Package:

Software Name	Purpose
RemDAq	data collection
PHASER	phasing
SHELXL-97	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-02-29 
Deposition Author(s): Spingler, B., Can, D., Alberto, R.

Revision History  

• Version 1.0: 2012-02-29
  Type: Initial release
  
• Version 1.1: 2012-03-07
  Changes: Database references
• Version 1.2: 2012-10-17
  Changes: Database references
• Version 1.3: 2017-11-08
  Changes: Refinement description
• Version 1.4: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.5: 2026-08-12
  Type: Remediation
  Reason: Metalloprotein remediation
  Changes: Derived calculations, Structure summary