8QF4

Complex between N-lobe of Arc and nanobody H11

• PDB DOI: https://doi.org/10.2210/pdb8QF4/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Vicugna pacos, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-09-02 Released: 2024-03-13 
• Deposition Author(s): Godoy Munoz, J.M., Kursula, P.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.02 Å
• R-Value Free: 0.160 
• R-Value Work: 0.129 
• R-Value Observed: 0.130 

Starting Models: experimental

Literature

Complex between Arc N-lobe and nanobody H11

Godoy Munoz, J.M., Kursula, P.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content

• Total Structure Weight: 23.13 kDa 
• Atom Count: 2,041 
• Modelled Residue Count: 194 
• Deposited Residue Count: 203 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nanobody H11	A [auth E]	128	Vicugna pacos	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Activity-regulated cytoskeleton-associated protein	B [auth A]	75	Homo sapiens	Mutation(s): 0  Gene Names: ARC, KIAA0278
UniProt & NIH Common Fund Data Resources
Find proteins for Q7LC44 (Homo sapiens) Explore Q7LC44  Go to UniProtKB:  Q7LC44
PHAROS:  Q7LC44 GTEx:  ENSG00000198576

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	C [auth A], D [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.02 Å
• R-Value Free: 0.160 
• R-Value Work: 0.129 
• R-Value Observed: 0.130 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.82	α = 90
b = 52.07	β = 109.89
c = 44.22	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-13 
Deposition Author(s): Godoy Munoz, J.M., Kursula, P.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-03-13
  Type: Initial release