8RO7

Human cohesin SMC1A-HD(longCC)/RAD21-C complex - Open/closed P-loop conformation

• PDB DOI: https://doi.org/10.2210/pdb8RO7/pdb

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


• Deposited: 2024-01-11 Released: 2024-09-11 
• Deposition Author(s): Shaik, T.B., Romier, C.
• Funding Organization(s): Fondation ARC, Agence Nationale de la Recherche (ANR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.09 Å
• R-Value Free: 0.223 
• R-Value Work: 0.199 
• R-Value Observed: 0.200 

Starting Model: experimental

Literature

The Cohesin ATPase cycle is mediated by specific conformational dynamics and interface plasticity of SMC1A and SMC3 ATPase domains

Shaik, T.B., Romier, C.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 60.65 kDa 
• Atom Count: 3,188 
• Modelled Residue Count: 395 
• Deposited Residue Count: 537 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Structural maintenance of chromosomes protein 1A (SMC1A)	A	456	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
64-kDa C-terminal product	B	81	Homo sapiens	Mutation(s): 0  Gene Names: RAD21, HR21, KIAA0078, NXP1, SCC1
UniProt & NIH Common Fund Data Resources
Find proteins for O60216 (Homo sapiens) Explore O60216  Go to UniProtKB:  O60216
PHAROS:  O60216 GTEx:  ENSG00000164754

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.09 Å
• R-Value Free: 0.223 
• R-Value Work: 0.199 
• R-Value Observed: 0.200 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 187.6	α = 90
b = 64.59	β = 103.97
c = 47.13	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-11 
Deposition Author(s): Shaik, T.B., Romier, C.

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Funding Organization	Location	Grant Number
Fondation ARC	France	ARCPJA20181208268
Fondation ARC	France	ARCPJA2021060003715
Fondation ARC	France	DOC20180507150
Agence Nationale de la Recherche (ANR)	France	ANR-10-LABX-030-INRT
Agence Nationale de la Recherche (ANR)	France	ANR-10-IDEX-0002
Agence Nationale de la Recherche (ANR)	France	ANR-17-EURE-0023
Agence Nationale de la Recherche (ANR)	France	ANR-10-INBS-0005-01

Revision History  

• Version 1.0: 2024-09-11
  Type: Initial release