9HMD | pdb_00009hmd

Crystal structure of PDE6D in complex with DeltaTag (6a)

• PDB DOI: https://doi.org/10.2210/pdb9HMD/pdb

• Classification: LIPID BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-12-09 Released: 2025-12-24 
• Deposition Author(s): Zhang, R., Waldmann, H., Gasper, R.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.283 (Depositor), 0.283 (DCC) 
• R-Value Work: 
  0.240 (Depositor), 0.239 (DCC) 
• R-Value Observed: 
  0.242 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of PDE6D in complex with DeltaTag (6a)

Zhang, R.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: mass spectrometry

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 37.78 kDa 
• Atom Count: 2,491 
• Modeled Residue Count: 292 
• Deposited Residue Count: 312 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit delta	A, B	156	Homo sapiens	Mutation(s): 0  Gene Names: PDE6D, PDED
UniProt & NIH Common Fund Data Resources
Find proteins for O43924 (Homo sapiens) Explore O43924  Go to UniProtKB:  O43924
PHAROS:  O43924 GTEx:  ENSG00000156973

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1IWD (Subject of Investigation/LOI)	C [auth A], D [auth B]	4-[3,4-dimethyl-2-(4-methylphenyl)-7-oxidanylidene-pyrazolo[3,4-d]pyridazin-6-yl]-~{N}-[2-(3-ethylphenyl)ethyl]-~{N}-(piperidin-4-ylmethyl)butane-1-sulfonamide C34 H46 N6 O3 S QHFTYTSBWBJCGY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.283 (Depositor), 0.283 (DCC) 
• R-Value Work:  0.240 (Depositor), 0.239 (DCC) 
• R-Value Observed: 0.242 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.47	α = 90
b = 75.22	β = 90
c = 81.6	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XSCALE	data scaling
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-24 
Deposition Author(s): Zhang, R., Waldmann, H., Gasper, R.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-12-24
  Type: Initial release