Contacts of the helix formed by residues 236 - 247 (chain D) in PDB entry 5LS6


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 236 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126D  THR*     5.8     7.0    -      -       +      +
    156D  LYS*     4.2    15.5    -      -       -      +
    228D  SER*     4.0     2.9    -      -       -      -
    235D  GLY*     1.3    79.1    +      -       -      -
    237D  ALA*     1.3    65.0    +      -       -      +
    238D  GLU*     3.7    13.2    +      -       -      +
    239D  GLU*     3.1    28.8    +      -       -      +
    240D  LEU*     3.3    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224D  PHE*     3.1    45.0    -      -       +      +
    225D  GLU*     3.6    19.3    -      -       +      +
    228D  SER*     3.8     8.2    +      -       -      +
    236D  THR*     1.3    73.1    -      -       -      +
    238D  GLU*     1.3    59.6    +      -       -      +
    240D  LEU*     3.2     6.3    +      -       -      +
    241D  LYS*     3.0    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236D  THR*     3.4     8.4    +      -       -      +
    237D  ALA*     1.3    77.5    -      -       -      +
    239D  GLU*     1.3    60.8    +      -       +      +
    241D  LYS*     3.2    22.5    +      -       -      +
    242D  GLU*     3.1    36.2    +      -       -      +
    245D  LYS*     5.6     4.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 239 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126D  THR*     4.2    17.5    +      -       -      +
    234D  LYS      4.9     2.9    -      -       -      +
    235D  GLY      3.7     7.3    -      -       -      +
    236D  THR*     3.1    43.3    +      -       -      +
    237D  ALA      3.3     0.6    -      -       -      -
    238D  GLU*     1.3    79.1    -      -       +      +
    240D  LEU*     1.3    57.4    +      -       -      +
    242D  GLU*     3.6     6.9    +      -       -      +
    243D  LYS*     3.0    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 240 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171D  PHE*     4.3    18.7    -      -       +      -
    224D  PHE*     3.4    20.8    -      -       +      +
    227D  ILE*     3.7    21.5    -      -       +      +
    228D  SER*     3.5    36.8    -      -       -      -
    231D  PHE*     5.9     0.4    -      -       +      -
    234D  LYS*     3.1    42.4    -      -       +      +
    236D  THR      3.3     3.6    +      -       -      +
    237D  ALA      3.2     8.5    +      -       -      +
    239D  GLU*     1.3    75.6    -      -       -      +
    241D  LYS*     1.3    59.1    +      -       -      +
    242D  GLU      3.3     0.2    -      -       -      -
    243D  LYS*     3.8    20.1    -      -       +      +
    244D  TYR*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 241 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216D  ARG*     4.2    18.8    -      -       -      +
    221D  ASP*     3.6    25.5    +      -       -      +
    224D  PHE*     3.5    34.0    -      -       +      -
    237D  ALA      3.0    13.3    +      -       -      +
    238D  GLU*     3.2    26.0    +      -       -      +
    240D  LEU*     1.3    75.0    -      -       -      +
    242D  GLU*     1.3    58.0    +      -       -      +
    244D  TYR*     3.4     4.6    +      -       +      +
    245D  LYS*     3.2    52.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 242 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  GLU*     3.1    24.4    +      -       -      +
    239D  GLU*     3.8     7.6    -      -       -      +
    241D  LYS*     1.3    74.3    -      -       -      +
    243D  LYS*     1.3    64.7    +      -       -      +
    245D  LYS*     3.3    22.9    +      -       +      +
    246D  GLU*     3.0    46.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 243 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168D  ASP*     5.3     9.0    +      -       -      -
    171D  PHE*     4.8    15.0    -      -       +      -
    234D  LYS*     5.3     8.3    -      -       +      +
    239D  GLU*     3.0    22.6    +      -       +      +
    240D  LEU*     3.8    24.2    -      -       +      +
    241D  LYS      3.4     0.2    -      -       -      -
    242D  GLU*     1.3    76.1    +      -       -      +
    244D  TYR*     1.3    63.0    +      -       -      +
    246D  GLU*     3.1    13.6    +      -       -      +
    247D  LEU*     3.0    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 244 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171D  PHE*     4.7    10.9    -      +       +      -
    172D  VAL*     4.5    11.7    -      -       +      -
    175D  VAL*     3.4    34.5    -      -       +      +
    176D  ASN      5.7     0.2    -      -       -      -
    216D  ARG*     4.1    46.9    -      -       +      +
    224D  PHE*     3.8    25.1    -      +       +      -
    240D  LEU      3.0    18.1    +      -       -      +
    241D  LYS*     3.5     7.0    -      -       +      +
    242D  GLU      3.3     0.2    -      -       -      -
    243D  LYS*     1.3    77.3    -      -       -      +
    245D  LYS*     1.3    53.7    +      -       -      +
    247D  LEU*     3.3     5.5    +      -       +      +
    248D  THR*     2.8    61.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 245 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216D  ARG*     3.6    41.9    -      -       -      +
    238D  GLU*     5.6     3.8    +      -       -      -
    241D  LYS*     3.2    40.5    +      -       -      +
    242D  GLU*     3.5    24.5    -      -       -      +
    243D  LYS      3.3     0.4    -      -       -      -
    244D  TYR*     1.3    73.1    -      -       +      +
    246D  GLU*     1.3    66.1    +      -       -      +
    248D  THR*     3.2    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 246 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242D  GLU*     3.0    39.4    +      -       -      +
    243D  LYS*     3.1    15.4    +      -       -      +
    245D  LYS*     1.3    77.0    -      -       -      +
    247D  LEU*     1.3    58.6    +      -       +      +
    248D  THR      3.3     3.2    +      -       -      -
    249D  GLN*     4.2    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 247 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168D  ASP*     3.8    43.7    -      -       +      +
    171D  PHE*     4.7    11.2    -      -       +      -
    172D  VAL*     3.2    35.5    -      -       +      +
    243D  LYS*     3.0    18.0    +      -       -      +
    244D  TYR*     3.3     4.9    +      -       +      +
    245D  LYS      3.2     0.4    -      -       -      -
    246D  GLU*     1.3    75.8    -      -       +      +
    248D  THR*     1.3    64.8    +      -       -      +
    249D  GLN*     4.0     4.6    +      -       -      -
    348E  SER*     5.6     3.6    -      -       -      -
    349E  ASN*     5.7     1.6    -      -       -      +
----------------------------------------------------------
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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