Contacts of the strand formed by residues 524 - 528 (chain C) in PDB entry 4E2I


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with GLY 524 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408C  PHE*     4.3     3.7    -      -       -      -
    412C  MET*     4.0     5.1    -      -       -      +
    420C  ARG      3.9     2.3    -      -       -      +
    421C  TYR*     3.1    33.8    -      -       -      -
    422C  TRP      3.1     4.0    +      -       -      -
    469C  LEU*     3.9     9.0    -      -       -      -
    470C  VAL      3.1    14.6    -      -       -      -
    523C  PRO*     1.3    81.0    -      -       -      +
    525C  ILE*     1.3    68.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 525 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408C  PHE*     3.5    28.0    -      -       +      -
    421C  TYR*     4.1     0.6    -      -       -      -
    422C  TRP*     3.6    11.2    -      -       +      +
    424C  PHE*     3.4    41.3    -      -       +      -
    436C  ALA*     4.6     8.7    -      -       +      +
    439C  LEU*     3.5    36.3    -      -       +      -
    469C  LEU*     6.1     1.6    -      -       +      -
    470C  VAL      2.8    10.7    +      -       -      +
    471C  VAL*     3.4    13.4    -      -       +      +
    472C  PHE*     2.9    26.2    +      -       -      +
    524C  GLY*     1.3    79.3    -      -       -      +
    526C  VAL*     1.3    71.1    +      -       -      +
    527C  THR*     4.2     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 526 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421C  TYR*     3.6    18.6    -      -       +      -
    422C  TRP      3.0     5.7    +      -       -      -
    423C  LEU*     3.2     9.7    -      -       -      +
    424C  PHE      3.0    21.2    +      -       -      -
    472C  PHE*     3.5    34.5    -      -       +      -
    475C  VAL*     4.1     9.9    -      -       +      -
    494C  LEU*     3.8    31.0    -      -       +      -
    501C  LEU*     5.1     2.7    -      -       +      -
    525C  ILE*     1.3    77.0    -      -       -      +
    527C  THR*     1.3    64.4    +      -       -      +
    528C  MET*     4.9     2.9    -      -       +      -
    541C  PHE*     3.7    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 527 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424C  PHE*     3.5    29.4    -      -       +      -
    432C  LYS*     4.9    11.0    -      -       +      +
    433C  THR*     5.9     0.9    -      -       -      -
    436C  ALA*     3.7    26.0    -      -       +      -
    471C  VAL*     5.0     1.3    -      -       +      -
    472C  PHE      2.8    25.5    +      -       -      +
    473C  GLU*     3.2    14.1    +      -       -      +
    474C  ASP*     2.8    23.0    +      -       -      -
    475C  VAL*     3.2    24.4    +      -       -      +
    525C  ILE*     4.2     3.8    -      -       +      -
    526C  VAL*     1.3    75.3    -      -       -      +
    528C  MET*     1.3    63.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 528 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    423C  LEU*     3.5    22.2    -      -       +      -
    424C  PHE      3.3     4.8    +      -       -      +
    425C  LYS*     3.5    31.6    -      -       +      -
    426C  GLY      3.0    21.8    +      -       -      -
    432C  LYS*     3.9     0.9    -      -       -      +
    474C  ASP*     4.3     2.7    -      -       -      +
    475C  VAL*     3.6    26.2    -      -       +      +
    491C  ILE*     3.6    26.0    -      -       +      -
    494C  LEU*     4.9     3.4    -      -       +      -
    526C  VAL*     4.9     5.2    -      -       +      -
    527C  THR*     1.3    78.4    -      -       -      +
    529C  ASN*     1.3    73.3    +      -       -      +
    531C  TYR*     4.1    10.8    -      -       +      +
    533C  VAL*     3.5    32.8    -      -       +      -
    537C  LEU*     5.3     0.2    -      -       +      -
    541C  PHE*     5.0     2.5    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il