PROCHECK summary for 1b62

Ramachandran plot

PROCHECK statistics

1. Ramachandran Plot statistics

No. of

residues %-tage

------ ------

Most favoured regions [A,B,L] 257 86.5%*

Additional allowed regions [a,b,l,p] 38 12.8%

Generously allowed regions [~a,~b,~l,~p] 1 0.3%

Disallowed regions [XX] 1 0.3%*

---- ------

Non-glycine and non-proline residues 297 100.0%

End-residues (excl. Gly and Pro) 3

Glycine residues 20

Proline residues 13

----

Total number of residues 333

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].

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2. G-Factors

Average

Parameter Score Score

--------- ----- -----

Dihedral angles:-

Phi-psi distribution -0.27

Chi1-chi2 distribution 0.06

Chi1 only 0.32

Chi3 & chi4 0.51

Omega 0.57

0.18

=====

Main-chain covalent forces:-

Main-chain bond lengths 0.64

Main-chain bond angles 0.49

0.55

=====

OVERALL AVERAGE 0.33

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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.