Contacts of the strand formed by residues 1109 - 1113 (chain C) in PDB entry 1X86


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 ILE1109 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1028C  TRP*     5.0     0.5    +      -       -      -
   1076C  PHE*     3.7    24.2    -      -       -      -
   1098C  PHE*     4.0    41.5    -      -       +      -
   1100C  ILE*     3.9    30.5    -      -       +      +
   1107C  ALA*     3.8     9.3    +      -       +      +
   1108C  GLN*     1.3    72.9    -      -       -      +
   1110C  TYR*     1.3    63.3    +      -       -      +
   1111C  GLU      3.9     2.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1110 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1028C  TRP*     3.5    39.3    -      +       -      +
   1049C  LEU*     3.7    17.5    -      -       +      -
   1076C  PHE*     4.1    10.0    -      +       +      -
   1077C  SER*     2.9    41.9    +      -       -      -
   1079C  VAL      4.8     0.5    +      -       -      -
   1080C  ILE*     3.8    25.1    -      -       +      +
   1097C  LEU      3.4     0.9    -      -       -      +
   1098C  PHE*     3.4     2.1    -      -       -      -
   1099C  VAL*     2.6    55.1    +      -       +      +
   1101C  SER*     3.9    11.7    -      -       -      -
   1108C  GLN*     3.8    27.9    +      -       +      -
   1109C  ILE*     1.3    74.6    -      -       -      +
   1111C  GLU*     1.3    62.5    +      -       -      +
   1112C  LEU*     3.5     9.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1028C  TRP*     2.9    33.3    -      -       -      +
   1029C  LYS*     3.5    51.1    +      -       +      +
   1090C  VAL*     4.4     7.8    -      -       +      +
   1093C  ASP*     4.9     3.6    -      -       -      -
   1096C  ALA*     4.0    24.5    -      -       +      +
   1097C  LEU      3.8     2.7    -      -       -      -
   1098C  PHE*     3.7    34.4    -      -       +      -
   1109C  ILE*     3.9     4.2    +      -       +      +
   1110C  TYR*     1.3    71.2    -      -       -      +
   1112C  LEU*     1.3    62.7    +      -       -      +
   1113C  VAL*     4.1     1.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026C  LEU*     4.1    34.7    -      -       +      +
   1027C  VAL      3.3     4.7    -      -       -      +
   1028C  TRP*     3.6    27.4    -      -       +      -
   1038C  LEU*     3.8    16.6    -      -       +      -
   1047C  LEU*     5.2     3.4    -      -       +      -
   1049C  LEU*     4.2    22.0    -      -       +      -
   1095C  LYS      4.3     0.5    -      -       -      +
   1096C  ALA*     3.5     1.2    -      -       -      -
   1097C  LEU*     2.7    45.9    +      -       +      +
   1099C  VAL*     3.5    29.6    -      -       +      -
   1110C  TYR*     4.4     3.1    -      -       +      +
   1111C  GLU*     1.3    82.3    -      -       -      +
   1113C  VAL*     1.3    58.6    +      -       -      +
   1114C  ALA*     3.9     0.9    +      -       -      +
   1127C  ILE*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026C  LEU*     3.6     3.2    -      -       -      -
   1027C  VAL*     2.7    65.8    +      -       +      +
   1029C  LYS*     4.0    27.4    -      -       +      +
   1093C  ASP*     4.7     5.6    -      -       -      +
   1095C  LYS*     4.2    13.2    -      -       +      -
   1096C  ALA*     3.5    22.9    -      -       +      +
   1111C  GLU*     5.0     2.5    -      -       +      +
   1112C  LEU*     1.3    73.9    -      -       -      +
   1114C  ALA*     1.3    72.8    +      -       -      +
   1115C  GLN*     5.3     1.3    -      -       +      -
----------------------------------------------------------
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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