Contacts of the helix formed by residues 265 - 275 (chain F) in PDB entry 4P0S


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 GLY 265 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263F  MET*     2.9     1.0    -      -       -      +
    264F  GLU*     1.3    83.9    -      -       -      +
    266F  GLY*     1.3    66.0    +      -       -      +
    267F  GLY      3.1     2.7    -      -       -      -
    268F  GLN*     2.8    22.1    +      -       -      +
    269F  LEU*     3.0    12.2    +      -       -      +
    429F  TRP*     3.7    38.0    -      -       -      +
    432F  LEU*     5.3     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 266 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  LEU*     5.9     0.4    -      -       -      -
    260F  LEU*     4.6     3.1    -      -       -      -
    261F  LEU*     3.4    38.5    -      -       -      +
    263F  MET*     2.9    12.7    +      -       -      +
    265F  GLY*     1.3    75.2    -      -       -      +
    267F  GLY*     1.3    58.5    +      -       -      +
    269F  LEU*     3.0    12.5    +      -       -      +
    270F  LEU*     2.9    28.4    +      -       -      +
    429F  TRP*     5.2     0.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 267 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267B  GLY      3.7     9.6    -      -       -      +
    268B  GLN*     5.1     0.7    -      -       -      -
    270B  LEU*     5.2     2.6    -      -       -      +
    271B  GLY*     3.2    35.4    -      -       -      -
    274B  GLN*     3.1    11.9    +      -       -      +
    265F  GLY      3.1     1.2    -      -       -      -
    266F  GLY*     1.3    71.7    -      -       -      +
    268F  GLN*     1.3    64.2    +      -       -      +
    269F  LEU      3.0     1.6    -      -       -      -
    270F  LEU*     4.5     1.8    -      -       -      -
    271F  GLY*     3.0    22.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 268 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271B  GLY*     4.6     0.6    -      -       -      -
    264F  GLU      5.7     0.4    -      -       -      +
    265F  GLY*     2.8    16.5    +      -       -      +
    267F  GLY*     1.3    73.3    -      -       -      +
    269F  LEU*     1.3    57.4    +      -       -      +
    271F  GLY*     3.6     1.5    +      -       -      -
    272F  ALA*     3.1    27.4    +      -       -      +
    429F  TRP*     4.5    14.2    -      -       +      +
    430F  LYS*     3.6    41.1    +      -       +      +
    433F  ALA*     4.2    12.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 269 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256F  LEU*     4.7     9.6    -      -       +      -
    260F  LEU*     4.5    27.1    -      -       +      -
    261F  LEU*     5.6     0.9    -      -       +      -
    265F  GLY      3.0     9.0    +      -       -      +
    266F  GLY*     3.1    14.4    -      -       -      +
    268F  GLN*     1.3    74.8    -      -       -      +
    270F  LEU*     1.3    68.7    +      -       -      +
    271F  GLY      3.0     2.0    +      -       -      -
    272F  ALA*     3.1    12.0    +      -       -      +
    273F  LEU*     3.1    20.1    +      -       +      +
    315F  LEU*     5.5     0.7    -      -       +      -
    432F  LEU*     3.7    30.5    -      -       +      -
    433F  ALA*     4.4    12.3    -      -       -      +
    436F  THR*     3.3    38.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 270 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  LEU*     4.9     6.1    -      -       +      +
    266B  GLY      4.1     1.8    -      -       -      -
    267B  GLY*     3.0    37.2    -      -       -      +
    270B  LEU*     6.0     2.0    -      -       +      -
    256F  LEU*     4.3    17.7    -      -       +      -
    261F  LEU*     4.3    20.8    -      -       +      +
    266F  GLY      2.9    13.4    +      -       -      +
    267F  GLY*     4.3     1.1    -      -       -      +
    269F  LEU*     1.3    79.4    -      -       -      +
    271F  GLY*     1.3    63.1    +      -       -      +
    273F  LEU*     3.2     7.7    +      -       +      +
    274F  GLN*     3.0    37.3    +      -       -      +
    280F  CYS*     3.8    32.1    -      -       +      -
    282F  ILE*     4.4    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 271 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267B  GLY      4.6     1.0    -      -       -      -
    268B  GLN*     4.9    12.1    -      -       -      -
    267F  GLY      3.0    18.0    +      -       -      -
    268F  GLN*     3.8     1.6    -      -       -      -
    269F  LEU      3.0     0.2    -      -       -      -
    270F  LEU*     1.3    77.7    -      -       -      +
    272F  ALA*     1.3    62.3    +      -       -      +
    274F  GLN*     3.1    22.7    +      -       -      +
    275F  THR*     3.3    13.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 272 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268F  GLN*     3.1    17.7    +      -       +      +
    269F  LEU      3.1     3.3    +      -       -      +
    271F  GLY*     1.3    73.4    -      -       -      +
    273F  LEU*     1.3    62.2    +      -       +      +
    275F  THR*     3.2    24.3    -      -       -      -
    276F  MET*     4.0     3.6    +      -       -      +
    430F  LYS*     6.1     2.2    -      -       -      +
    433F  ALA*     4.5    15.5    -      -       +      +
    434F  ASP*     5.5     2.5    -      -       -      +
    437F  CYS*     3.7    30.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 273 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254F  VAL*     3.7    39.3    -      -       +      -
    256F  LEU*     4.8     7.4    -      -       +      -
    269F  LEU*     3.1    18.0    +      -       +      +
    270F  LEU*     3.4    11.9    -      -       +      +
    272F  ALA*     1.3    78.6    -      -       -      +
    274F  GLN*     1.3    61.0    +      -       -      +
    276F  MET*     3.2    30.1    +      -       +      +
    278F  CYS*     3.1    23.8    -      -       -      -
    280F  CYS*     4.2    11.4    -      -       -      -
    433F  ALA      5.1     0.4    -      -       -      +
    436F  THR*     3.6    40.8    -      -       +      +
    437F  CYS*     3.9     9.2    -      -       -      +
    440F  THR*     3.9     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 274 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  LEU      5.3     0.4    +      -       -      -
    263B  MET      3.9     6.3    +      -       -      -
    264B  GLU*     3.2    34.4    +      -       +      +
    265B  GLY*     4.1     1.4    -      -       -      -
    267B  GLY*     3.3    24.4    -      -       -      +
    268B  GLN*     3.8    21.5    +      -       -      +
    270F  LEU*     3.0    26.2    +      -       -      +
    271F  GLY*     3.1     9.7    +      -       -      +
    273F  LEU*     1.3    74.1    -      -       -      +
    275F  THR*     1.3    57.7    +      -       -      +
    276F  MET      2.8    15.7    -      -       -      +
    278F  CYS      4.7     7.1    -      -       -      +
    280F  CYS*     4.5    15.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 275 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271F  GLY      3.3    14.8    +      -       -      -
    272F  ALA*     3.2    18.1    +      -       -      -
    274F  GLN*     1.3    76.5    -      -       -      +
    276F  MET*     1.3    59.2    +      -       +      +
    277F  GLU*     4.1     1.7    +      -       -      +
----------------------------------------------------------
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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