Contacts of the helix formed by residues 87 - 99 (chain N) in PDB entry 3LEL


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 THR 87 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44M  GLY*     4.9     4.5    -      -       -      -
     46M  GLY*     5.6     0.2    -      -       -      -
     47M  ALA*     3.8     8.3    -      -       -      +
     85N  THR*     3.9    17.9    -      -       +      +
     86N  ILE*     1.3    77.3    -      -       -      +
     88N  SER*     1.3    66.4    +      -       -      +
     89N  ARG*     3.0    26.6    +      -       -      +
     90N  GLU*     2.7    27.8    +      -       -      +
     91N  ILE*     3.3    21.0    +      -       -      +
    -34S    G      5.9     1.6    -      -       -      +
    -33S    A      6.0     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 88 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46M  GLY*     3.7    24.8    -      -       -      -
     47M  ALA*     3.4    14.3    -      -       -      +
     50M  TYR*     3.4    27.9    -      -       -      -
     87N  THR*     1.3    74.0    -      -       -      +
     89N  ARG*     1.3    54.8    +      -       -      +
     91N  ILE*     3.1     5.7    +      -       -      +
     92N  GLN*     2.8    31.2    +      -       -      +
    115N  VAL*     4.4    12.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 89 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74L  GLU      3.5    15.6    +      -       -      -
     75L  HIS*     2.7    61.3    +      -       +      +
     77L  LYS*     3.6    35.0    -      -       -      +
     87N  THR*     3.0    13.4    +      -       -      +
     88N  SER*     1.3    81.5    +      -       -      +
     90N  GLU*     1.3    66.5    +      -       -      +
     92N  GLN*     3.1    22.8    +      -       +      +
     93N  THR*     3.1    17.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 90 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75L  HIS*     3.0    36.4    +      -       +      +
     74N  ALA*     4.1    30.3    -      -       +      +
     77N  LEU*     3.7     8.0    -      -       +      +
     78N  ALA*     4.6     8.3    -      -       -      +
     83N  ARG*     5.0     9.1    -      -       -      +
     85N  THR      2.9    15.7    -      -       -      +
     86N  ILE*     4.2     8.7    -      -       +      -
     87N  THR*     2.7    45.2    +      -       -      +
     89N  ARG*     1.3    81.0    -      -       -      +
     91N  ILE*     1.3    63.7    +      -       -      +
     92N  GLN      3.2     0.3    +      -       -      -
     93N  THR*     3.2     3.6    +      -       -      -
     94N  ALA*     2.9    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 91 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34M  LEU*     5.1     5.4    -      -       +      -
     47M  ALA*     3.8    27.6    -      -       +      +
     50M  TYR*     3.7    24.9    -      -       +      -
     51M  LEU*     4.0    39.5    -      -       +      +
     54M  VAL*     4.7     0.4    -      -       +      -
     70N  ILE*     4.4    13.2    -      -       +      -
     71N  ALA*     5.6     1.6    -      -       -      -
     74N  ALA*     4.6     7.2    -      -       +      -
     86N  ILE*     4.3    10.3    -      -       +      -
     87N  THR      3.3    13.2    +      -       -      +
     88N  SER      3.1     8.0    +      -       -      +
     90N  GLU*     1.3    74.9    -      -       -      +
     92N  GLN*     1.3    57.5    +      -       -      +
     94N  ALA*     3.4     6.8    +      -       -      +
     95N  VAL*     2.8    41.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 92 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50M  TYR*     3.1    42.8    +      -       +      +
     88N  SER      2.8    11.3    +      -       -      +
     89N  ARG*     3.1    16.7    +      -       +      +
     91N  ILE*     1.3    73.2    -      -       -      +
     93N  THR*     1.3    57.6    +      -       -      +
     95N  VAL*     3.1     7.6    +      -       -      +
     96N  ARG*     2.9    66.0    +      -       -      +
    108N  VAL*     3.7     7.7    -      -       +      +
    112N  THR*     3.6    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 93 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71L  THR*     3.7    26.0    -      -       +      +
     75L  HIS*     2.5    41.5    +      -       +      +
     77N  LEU*     3.7    19.1    -      -       +      -
     89N  ARG*     3.1    10.5    +      -       -      +
     90N  GLU      3.7     4.5    -      -       -      -
     92N  GLN*     1.3    75.3    -      -       -      +
     94N  ALA*     1.3    53.3    +      -       -      +
     96N  ARG*     2.8    14.9    +      -       -      +
     97N  LEU*     2.6    41.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 94 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70N  ILE*     3.6    31.1    -      -       +      +
     73N  GLU*     3.8    10.1    -      -       +      +
     74N  ALA*     3.8    17.3    -      -       +      +
     77N  LEU*     3.6     7.3    -      -       +      +
     90N  GLU      2.9    16.5    +      -       -      +
     91N  ILE*     3.4     7.2    -      -       -      +
     93N  THR*     1.3    76.3    -      -       -      +
     95N  VAL*     1.3    55.8    +      -       -      +
     97N  LEU*     3.8     4.8    -      -       -      +
     98N  LEU*     3.0    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 95 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50M  TYR*     4.5     2.0    -      -       +      -
     54M  VAL*     4.1    20.9    -      -       +      -
     70N  ILE*     4.3    11.4    -      -       +      -
     91N  ILE*     2.8    41.0    +      -       +      +
     92N  GLN*     3.3     9.2    -      -       -      +
     93N  THR      3.0     0.2    -      -       -      -
     94N  ALA*     1.3    74.3    -      -       -      +
     96N  ARG*     1.3    63.2    +      -       -      +
     97N  LEU      3.2     0.2    -      -       -      -
     98N  LEU*     4.8     1.1    -      -       -      -
     99N  LEU*     2.9    51.8    +      -       +      +
    104N  ALA*     4.3     2.5    -      -       -      +
    107N  ALA*     3.8    22.9    -      -       +      -
    108N  VAL*     4.3    13.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 96 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67L  ARG*     6.0     2.1    -      -       -      -
     68L  ASP*     5.5     1.2    -      -       -      +
     71L  THR*     4.5    17.3    -      -       +      +
     92N  GLN*     2.9    51.3    +      -       -      +
     93N  THR*     2.8    14.4    +      -       -      +
     95N  VAL*     1.3    77.9    -      -       -      +
     97N  LEU*     1.3    61.9    +      -       -      +
     99N  LEU      3.5    11.8    -      -       -      +
    104N  ALA*     4.5    13.6    -      -       +      +
    108N  VAL*     3.5    28.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 97 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68L  ASP*     3.9    35.3    -      -       +      +
     71L  THR*     3.7    31.0    -      -       +      -
     72L  TYR*     3.8    34.3    -      -       +      +
     92L  ARG*     3.1    33.3    +      -       -      +
     73N  GLU*     3.8    13.7    -      -       -      +
     77N  LEU*     4.2    16.6    -      -       +      -
     93N  THR*     2.6    25.7    +      -       +      +
     94N  ALA*     3.8     6.1    -      -       -      +
     96N  ARG*     1.3    75.8    -      -       -      +
     98N  LEU*     1.3    59.6    +      -       -      +
     99N  LEU      4.8     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 98 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92L  ARG*     3.9    14.8    +      -       -      +
     96M  LEU*     4.2    14.4    -      -       +      +
     66N  VAL*     4.7     4.9    -      -       +      +
     69N  ARG*     3.6    55.6    -      -       +      +
     70N  ILE*     3.9    17.7    -      -       +      -
     73N  GLU*     4.7     7.4    -      -       +      +
     94N  ALA      3.0    17.9    +      -       -      +
     95N  VAL*     4.3     1.1    -      -       -      +
     97N  LEU*     1.3    80.4    -      -       -      +
     99N  LEU*     1.3    83.9    +      -       +      +
    100N  PRO*     3.9     2.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58M  LEU*     3.8    37.9    -      -       +      -
     96M  LEU*     3.8    15.7    -      -       +      -
     66N  VAL*     5.4     0.4    -      -       +      -
     70N  ILE*     5.1     4.3    -      -       +      -
     95N  VAL*     2.9    25.4    +      -       +      +
     96N  ARG      3.5    10.4    -      -       -      +
     97N  LEU      4.8     0.3    -      -       -      +
     98N  LEU*     1.3   101.1    -      -       +      +
    100N  PRO*     1.3    71.1    -      -       +      +
    101N  GLY      3.8     0.7    +      -       -      -
    103N  LEU*     3.9    11.4    -      -       +      +
    104N  ALA*     3.5    19.5    -      -       -      +
    107N  ALA*     3.6    31.0    -      -       +      -
----------------------------------------------------------
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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