Contacts of the strand formed by residues 94 - 97 (chain Z) in PDB entry 3EHW


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 ILE 94 (chain Z).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114X  PHE*     4.5     1.0    -      -       -      -
     58Z  ILE*     5.8     2.0    -      -       +      -
     84Z  PRO*     4.6     3.9    -      -       +      +
     85Z  ARG      4.9     0.2    -      -       -      +
     88Z  LEU*     3.1    32.8    +      -       +      +
     89Z  ALA*     3.3    25.0    +      -       -      +
     92Z  HIS*     3.1    16.4    -      -       +      +
     93Z  PHE*     1.3    77.9    -      -       -      +
     95Z  ASP*     1.3    65.4    +      -       -      +
     96Z  VAL*     5.7     1.3    -      -       +      -
    113Z  LEU*     4.0    30.7    -      -       +      -
    114Z  PHE      3.5     2.5    -      -       -      +
    115Z  ASN*     3.6    37.5    -      -       +      +
    121Z  PHE*     3.7    36.6    -      -       +      -
    129Z  ILE      5.2     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 95 (chain Z). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96X  VAL      5.2     0.7    -      -       -      +
     97X  GLY*     4.6     5.3    -      -       -      -
    114X  PHE*     3.9    20.6    -      -       +      -
    778X   MG      2.6    28.5    -      -       -      -
     95Y  ASP*     4.3     1.0    -      -       -      +
     84Z  PRO*     3.8    18.1    -      -       -      +
     94Z  ILE*     1.3    76.7    -      -       -      +
     96Z  VAL*     1.3    82.4    +      -       -      +
    113Z  LEU*     3.5     8.8    -      -       -      +
    114Z  PHE*     2.8    34.1    +      -       +      +
    116Z  PHE*     3.7    31.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 96 (chain Z). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95Y  ASP*     5.1     2.9    -      -       -      +
     82Z  VAL*     3.6    37.9    -      -       +      +
     83Z  ALA      3.9     4.0    -      -       -      +
     84Z  PRO*     3.5    37.9    -      -       +      +
     94Z  ILE*     5.7     0.9    -      -       +      -
     95Z  ASP*     1.3    95.6    +      -       -      +
     97Z  GLY*     1.3    73.2    +      -       -      +
     98Z  ALA      5.1     0.3    -      -       -      +
    111Z  VAL*     4.7     2.2    -      -       +      -
    112Z  VAL      3.3     7.9    -      -       -      +
    113Z  LEU*     4.0    17.3    -      -       +      -
    114Z  PHE*     4.6     1.3    -      -       -      -
    129Z  ILE      4.6     1.1    -      -       -      +
    130Z  ALA*     4.2     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 97 (chain Z). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    777X  DUP      4.1     1.2    -      -       -      +
     84Y  PRO*     4.6     0.4    -      -       -      -
     95Y  ASP*     4.5     5.2    -      -       -      -
     95Z  ASP      4.1     0.4    -      -       -      -
     96Z  VAL*     1.3    87.2    -      -       -      +
     98Z  ALA*     1.3    73.8    +      -       -      +
     99Z  GLY*     3.1     3.6    +      -       -      -
    112Z  VAL*     2.7    20.3    +      -       -      +
    114Z  PHE*     3.5    32.1    -      -       -      -
----------------------------------------------------------
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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