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PDBsum entry 9itk
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Membrane protein
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PDB id
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9itk
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Contents |
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493 a.a.
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466 a.a.
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285 a.a.
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(+ 4 more)
71 a.a.
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128 a.a.
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69 a.a.
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233 a.a.
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153 a.a.
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Generate full PROCHECK analyses
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PROCHECK summary for 9itk
Ramachandran plot
PROCHECK statistics
1. Ramachandran Plot statistics
No. of
residues %-tage
------ ------
Most favoured regions [A,B,L] 4002 88.9%*
Additional allowed regions [a,b,l,p] 466 10.3%
Generously allowed regions [~a,~b,~l,~p] 32 0.7%
Disallowed regions [XX] 4 0.1%*
---- ------
Non-glycine and non-proline residues 4504 100.0%
End-residues (excl. Gly and Pro) 40
Glycine residues 465
Proline residues 228
----
Total number of residues 5237
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 0.04
Chi1-chi2 distribution -0.33
Chi1 only -0.06
Chi3 & chi4 0.46
Omega -0.13
-0.04
=====
Main-chain covalent forces:-
Main-chain bond lengths 0.66
Main-chain bond angles 0.47
0.55
=====
OVERALL AVERAGE 0.20
=====
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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