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PDBsum entry 4aa6
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Transcription/DNA
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PDB id
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4aa6
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Contents |
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69 a.a.
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70 a.a.
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68 a.a.
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69 a.a.
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Generate full PROCHECK analyses
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PROCHECK summary for 4aa6
Ramachandran plot
PROCHECK statistics
1. Ramachandran Plot statistics
No. of
residues %-tage
------ ------
Most favoured regions [A,B,L] 197 82.8%*
Additional allowed regions [a,b,l,p] 36 15.1%
Generously allowed regions [~a,~b,~l,~p] 4 1.7%
Disallowed regions [XX] 1 0.4%*
---- ------
Non-glycine and non-proline residues 238 100.0%
End-residues (excl. Gly and Pro) 15
Glycine residues 19
Proline residues 4
----
Total number of residues 276
Based on an analysis of 118 structures of resolution of at least 2.0 Angstroms and R-factor no greater than 20.0 a good
quality model would be expected to have over 90% in the most favoured regions [A,B,L].
2. G-Factors
Average
Parameter Score Score
--------- ----- -----
Dihedral angles:-
Phi-psi distribution -0.33
Chi1-chi2 distribution 0.02
Chi1 only 0.04
Chi3 & chi4 0.62
Omega 0.59
0.17
=====
Main-chain covalent forces:-
Main-chain bond lengths 0.65
Main-chain bond angles 0.48
0.55
=====
OVERALL AVERAGE 0.32
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G-factors provide a measure of how unusual, or out-of-the-ordinary, a property is.
Values below -0.5* - unusual
Values below -1.0** - highly unusual
Important note: The main-chain
bond-lengths and bond angles are compared with
the Engh & Huber (1991) ideal values derived
from small-molecule data. Therefore, structures
refined using different restraints may show
apparently large deviations from normality.
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