Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 24756.94 
• Atom Count: 1637 
• Residue Count: 221 
• Unique protein chains: 1

1OI1

Crystal Structure of the MBT domains of Human SCML2

• DOI: 10.2210/pdb1OI1/pdb

• Classification: MBT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 1 


• Deposited: 2003-06-04 Released: 2003-06-15 
• Deposition Author(s): Sathyamurthy, A., Allen, M.D., Murzin, A.G., Bycroft, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.78 Å
• R-Value Free: 0.204 
• R-Value Work: 0.171 

Literature

Crystal Structure of the Malignant Brain Tumor (Mbt) Repeats in Sex Comb on Midleg-Like 2 (Scml2).

Sathyamurthy, A., Allen, M.D., Murzin, A.G., Bycroft, M.

(2003) J.Biol.Chem. 278: 46968

• PubMed: 12952983 
• DOI: 10.1074/jbc.M306469200


• PubMed Abstract: 
  

Sex Comb on Midleg (SCM) belongs to the Polycomb group of proteins, which are involved in transcriptional regulation in Drosophila. It is one of the components of Polycomb repressive complex 1, a multiprotein complex of Polycomb group proteins involved in the maintenance of repression and the blocking of chromatin remodeling. SCM contains two approximately 100-residue malignant brain tumor (MBT) repeats at the N terminus. These repeats are also found in other proteins involved in transcriptional repression. Here, we report the 1.78-A crystal structure of the two MBT repeats of SCM-like 2 (SCML2), a human homologue of SCM. Each repeat consists of an extended arm and a beta-barrel core. There are significant structural similarities to the Tudor, PWWP, and chromo domains, suggesting probable evolutionary relationships and functional similarities between the MBT repeats and these domains.

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Organizational Affiliation: 

Medical Research Council Centre for Protein Engineering, Hills Road, Cambridge CB2 2QH, United Kingdom.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
SCML2 PROTEIN	A	221	Homo sapiens	Mutation(s): 1  Gene Names: SCML2
Find proteins for Q9UQR0 (Homo sapiens) Go to Gene View: SCML2 Go to UniProtKB:  Q9UQR0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
PEG	A	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.78 Å
• R-Value Free: 0.204 
• R-Value Work: 0.171 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 118.762	α = 90.00
b = 47.696	β = 100.29
c = 41.493	γ = 90.00

Software Package:

Software Name	Purpose
CNS	phasing
SOLVE/RESOLVE	phasing
SCALA	data scaling
MOSFLM	data reduction
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-06-04 
• Released Date: 2003-06-15 
• Deposition Author(s): Sathyamurthy, A., Allen, M.D., Murzin, A.G., Bycroft, M.

Revision History 

• Version 1.0: 2003-06-15
  Type: Initial release
• Version 1.1: 2011-05-08
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2018-01-24
  Type: Source and taxonomy