Point symmetry: (Schoenflies symbol: I2 (icosahedral))
Components on special symmetry positions
ID
Model
Components
1
1
A-315-
HOH
Details
Authors are unsure about the biological significance of the interaction observed in the asymmetric unit. CSD dimer has been assigned as for the PDB entry 1DZ1
-
Components
#1: Protein
Chromoboxproteinhomolog1 / HP1Hsbeta / Heterochromatin protein 1 homolog beta / HP1 beta / Heterochromatin protein p25 / M31 / ...HP1Hsbeta / Heterochromatin protein 1 homolog beta / HP1 beta / Heterochromatin protein p25 / M31 / Modifier 1 protein / p25beta
Mass: 9030.041 Da / Num. of mol.: 1 / Fragment: unp residues 108-185 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CBX1, CBX / Plasmid: pET28-MHL / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)-V2R-pRARE2 / References: UniProt: P83916
Resolution: 1.9→43.07 Å / Cor.coef. Fo:Fc: 0.944 / Cor.coef. Fo:Fc free: 0.936 / SU B: 7.841 / SU ML: 0.108 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.131 / ESU R Free: 0.127 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: Some C-terminal residues of the CBX1 construct were not observed in the crysal structure. Electron density currently assigned to the histone peptide may instead have arisen from unobserved ...Details: Some C-terminal residues of the CBX1 construct were not observed in the crysal structure. Electron density currently assigned to the histone peptide may instead have arisen from unobserved CBX1 residues. The course of the peptide main chain at the position of histone Arg-49 remains uncertain. In an alternative interpretation of the crystal packing, the histone peptide interacts with histone residues 142..146.
Rfactor
Num. reflection
% reflection
Rfree
0.2431
839
9.9 %
Rwork
0.2126
-
-
obs
0.2156
7611
99.88 %
Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
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