Contacts of the helix formed by residues 1136 - 1145 (chain J) in PDB entry 4XLN


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 LYS1136 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1124J  GLN*     5.0     2.9    -      -       -      +
   1134J  LEU*     3.3     6.5    +      -       -      -
   1135J  ARG*     1.3    74.5    -      -       -      +
   1137J  ARG*     1.3    72.8    +      -       -      +
   1138J  SER*     3.8    17.0    -      -       -      +
   1139J  ASP*     2.8    43.9    +      -       -      +
   1140J  ILE      3.4     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1137 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1134J  LEU*     5.4     2.1    -      -       +      +
   1135J  ARG      3.5     3.1    +      -       -      -
   1136J  LYS*     1.3    89.0    -      -       +      +
   1138J  SER*     1.3    58.4    +      -       -      +
   1139J  ASP      3.3     0.2    -      -       -      -
   1140J  ILE*     3.8     3.2    -      -       -      +
   1141J  GLU*     2.9    48.0    +      -       +      +
   1172J  HIS*     3.8    27.4    -      -       -      +
   1175J  ILE*     3.9    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1138 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1136J  LYS*     2.8    18.1    +      -       -      +
   1137J  ARG*     1.3    77.5    -      -       -      +
   1139J  ASP*     1.3    68.8    +      -       -      +
   1141J  GLU*     3.4    10.6    +      -       -      +
   1142J  SER*     2.9    29.3    +      -       -      -
   1362J  LYS*     3.8    36.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1139 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1124J  GLN*     4.4    11.4    +      -       -      +
   1135J  ARG*     4.1    22.6    +      -       +      +
   1136J  LYS*     2.8    33.4    +      -       -      +
   1138J  SER*     1.3    80.4    +      -       -      +
   1140J  ILE*     1.3    56.0    +      -       -      +
   1142J  SER*     2.5    23.3    +      -       -      -
   1143J  GLY*     2.9    13.3    +      -       -      -
   1357J  ARG*     3.2    47.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1140 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1120J  VAL*     6.6     0.7    -      -       -      -
   1122J  LEU*     3.9    39.7    -      -       +      +
   1134J  LEU*     3.9    16.6    -      -       +      -
   1135J  ARG*     3.2    40.2    -      -       +      +
   1136J  LYS      3.4     2.1    +      -       -      +
   1137J  ARG      4.0     4.9    -      -       -      +
   1139J  ASP*     1.3    73.0    -      -       -      +
   1141J  GLU*     1.3    60.7    +      -       -      +
   1143J  GLY*     4.4     1.1    -      -       -      +
   1144J  LEU*     2.9    40.1    +      -       +      +
   1171J  VAL*     3.6    17.7    -      -       +      +
   1175J  ILE*     3.8    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1141 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776J  GLU*     3.4    29.3    -      -       -      +
   1137J  ARG*     2.9    49.5    +      -       +      +
   1138J  SER*     3.5     9.1    -      -       -      +
   1140J  ILE*     1.3    76.1    -      -       -      +
   1142J  SER*     1.3    60.0    +      -       -      +
   1143J  GLY      3.1     0.2    +      -       -      -
   1145J  TYR*     2.8    42.0    +      -       +      +
   1168J  LEU*     3.6    28.5    -      -       +      +
   1171J  VAL*     4.1     9.6    -      -       +      +
   1172J  HIS*     3.9     5.9    +      -       +      +
   1362J  LYS*     4.3    13.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1142 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    774J  SER      6.1     1.1    -      -       -      -
   1138J  SER      2.9    15.4    +      -       -      -
   1139J  ASP*     2.5    26.3    +      -       -      -
   1141J  GLU*     1.3    75.3    -      -       -      +
   1143J  GLY*     1.3    51.9    +      -       -      +
   1145J  TYR*     5.4     0.2    -      -       -      -
   1353J  GLN*     3.8     4.2    +      -       -      -
   1357J  ARG*     3.2    12.5    +      -       -      -
   1362J  LYS*     4.5    11.6    -      -       -      +
   1363J  LEU      3.2    26.7    -      -       -      -
   1364J  HIS*     2.3    40.3    +      -       -      +
   1365J  ASP*     3.1     8.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY1143 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1120J  VAL*     4.8    11.4    -      -       -      +
   1135J  ARG*     5.8     1.1    -      -       -      -
   1139J  ASP      2.9    13.9    +      -       -      -
   1140J  ILE*     3.8     1.6    -      -       -      -
   1142J  SER*     1.3    78.4    +      -       -      +
   1144J  LEU*     1.3    67.7    +      -       -      +
   1147J  ARG*     3.1    24.1    +      -       -      +
   1357J  ARG*     5.3     0.2    -      -       -      -
   1364J  HIS*     3.1     8.0    -      -       -      -
   1365J  ASP*     3.5    19.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1144 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1120J  VAL*     3.7    38.1    -      -       +      +
   1122J  LEU*     4.7     3.4    -      -       +      -
   1140J  ILE*     2.9    34.9    +      -       +      +
   1143J  GLY*     1.3    78.5    -      -       -      +
   1145J  TYR*     1.3    64.2    +      -       -      +
   1146J  GLY      3.3     1.0    +      -       -      -
   1147J  ARG*     3.2    19.0    +      -       -      +
   1166J  LEU*     3.6    12.5    -      -       +      +
   1171J  VAL*     3.6    20.0    -      -       +      +
   1174J  LEU*     3.7    20.2    -      -       +      -
   1186J  VAL*     3.6    36.8    -      -       +      -
   1188J  VAL*     4.5     5.2    -      -       +      -
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Residues in contact with TYR1145 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    770J  LEU*     4.9     0.2    -      -       -      +
    774J  SER      4.3    12.8    -      -       -      -
    775J  GLY*     4.1    26.3    +      -       -      -
    776J  GLU*     4.4    10.1    -      -       -      -
    916J  TYR*     2.3    40.2    +      +       -      -
    920J  LEU*     5.8     0.2    -      -       -      +
   1141J  GLU*     2.8    31.8    +      -       +      +
   1143J  GLY      3.6     1.0    -      -       -      -
   1144J  LEU*     1.3    70.6    -      -       -      +
   1146J  GLY*     1.3    65.2    +      -       -      +
   1147J  ARG      3.1     0.9    -      -       -      -
   1166J  LEU      3.8     5.4    -      -       -      -
   1167J  SER*     4.0     4.5    -      -       -      -
   1168J  LEU*     3.8    28.3    -      -       +      -
   1171J  VAL*     3.8     8.7    -      -       +      +
   1207J  TYR*     4.1    19.7    -      +       -      -
   1209J  LEU*     4.8     8.3    -      -       +      +
   1212J  ALA*     4.2    16.6    -      -       -      +
   1364J  HIS*     2.5    40.0    +      +       +      +
----------------------------------------------------------
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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