Contacts of the helix formed by residues 258 - 270 (chain F) in PDB entry 3FKS


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 ILE 258 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187F  VAL*     4.9     2.7    -      -       -      -
    233F  ALA*     5.8     2.2    -      -       +      -
    255F  ILE*     3.9    26.2    +      -       +      +
    257F  ASN*     1.3    75.6    +      -       -      +
    259F  PHE*     1.3    67.5    +      -       -      +
    261F  PHE*     3.2    22.5    +      -       +      +
    262F  THR*     4.2     3.0    +      -       -      +
    289F  MET*     5.4     7.9    -      -       +      -
    292F  LEU*     4.2    20.4    -      -       +      -
    293F  GLN*     3.8    24.0    -      -       -      +
    308F  GLN*     3.3    27.6    -      -       +      +
    309F  ALA      3.1    17.1    +      -       -      +
    310F  VAL*     3.6    22.2    -      -       +      -
    325F  THR*     5.2     3.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 259 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257F  ASN*     2.9    15.4    +      -       -      +
    258F  ILE*     1.3    84.7    -      -       -      +
    260F  ARG*     1.3    71.7    +      -       -      +
    261F  PHE      3.0     2.0    +      -       -      -
    262F  THR*     3.3     5.5    +      -       -      -
    263F  GLN*     3.0    56.8    +      -       +      -
    281F  TYR*     3.9     7.2    -      +       -      -
    310F  VAL*     4.4     4.9    -      -       +      -
    311F  TYR*     3.4    48.0    -      +       +      +
    313F  PRO*     3.3    34.5    -      -       +      -
    321F  ALA*     3.5    30.7    -      -       +      -
    322F  PRO*     4.8     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 260 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301B  PHE*     3.2    38.0    -      -       -      -
    346B  SER*     3.7    23.2    +      -       -      -
    163F  LYS*     5.7     0.8    -      -       -      +
    187F  VAL*     3.0    35.7    -      -       +      +
    188F  GLY*     3.0    22.0    +      -       -      +
    189F  GLU*     3.5    19.4    +      -       -      -
    222F  MET*     4.7     0.4    -      -       -      +
    229F  ARG*     4.5     7.1    -      -       -      +
    257F  ASN*     3.1    15.1    +      -       +      +
    259F  PHE*     1.3    90.0    -      -       -      +
    261F  PHE*     1.3    56.9    +      -       -      +
    262F  THR      3.5     0.2    -      -       -      -
    263F  GLN*     3.1    31.3    -      -       -      +
    264F  ALA*     2.8    33.2    +      -       -      +
    311F  TYR*     4.0    20.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 261 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187F  VAL*     4.0     9.0    -      -       +      +
    229F  ARG      4.4     7.9    -      -       -      -
    230F  ALA*     3.2    31.1    -      -       +      +
    231F  ARG*     4.9    12.1    -      -       -      -
    233F  ALA*     4.7     6.7    -      -       +      -
    234F  LEU*     5.2     6.3    -      -       +      -
    258F  ILE*     3.2    19.6    +      -       +      +
    259F  PHE      3.0     0.8    -      -       -      -
    260F  ARG*     1.3    76.4    -      -       -      +
    262F  THR*     1.3    75.5    +      -       -      +
    264F  ALA*     4.0     2.1    -      -       -      +
    265F  GLY*     3.0    22.9    +      -       -      -
    288F  ASP*     3.6    48.0    -      -       +      -
    289F  MET*     4.1     4.7    -      -       +      -
    292F  LEU*     3.6    33.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 262 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258F  ILE*     4.2     2.8    +      -       -      +
    259F  PHE*     3.3     7.2    +      -       -      -
    261F  PHE*     1.3    91.9    -      -       +      +
    263F  GLN*     1.3    64.5    +      -       -      +
    266F  SER*     3.1     9.2    +      -       -      -
    281F  TYR*     4.4     8.4    -      -       +      -
    282F  GLN*     3.1    41.4    +      -       -      +
    285F  LEU*     3.7    33.6    +      -       +      +
    288F  ASP*     6.2     0.7    -      -       +      -
    289F  MET*     3.4    26.4    -      -       +      +
    321F  ALA*     4.9     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 263 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298B  GLY      5.1     6.6    +      -       -      +
    301B  PHE*     3.2    39.1    -      -       -      +
    339B  TYR*     5.4     3.2    +      -       -      -
    343B  ASN*     5.2     1.4    -      -       -      +
    229F  ARG*     3.7    14.5    +      -       -      -
    259F  PHE*     3.0    43.9    +      -       +      +
    260F  ARG*     3.1    36.3    +      -       -      +
    262F  THR*     1.3    77.5    -      -       -      +
    264F  ALA*     1.3    60.1    +      -       -      +
    266F  SER*     2.6    26.1    +      -       -      +
    267F  GLU*     3.5    13.4    +      -       -      +
    281F  TYR*     5.2     4.9    -      -       -      -
    311F  TYR*     5.6     1.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 264 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226F  PRO*     3.8    30.8    -      -       +      +
    229F  ARG*     3.9    23.1    -      -       +      +
    230F  ALA*     4.1     7.6    -      -       -      +
    260F  ARG      2.8    21.7    +      -       -      +
    261F  PHE      4.0     2.7    -      -       -      +
    263F  GLN*     1.3    77.3    +      -       -      +
    265F  GLY*     1.3    62.3    +      -       -      +
    267F  GLU*     3.2    25.5    +      -       -      +
    268F  VAL*     3.7     6.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 265 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230F  ALA*     5.1     5.8    -      -       -      +
    261F  PHE*     3.0    16.4    +      -       -      -
    262F  THR      3.3     5.1    +      -       -      -
    263F  GLN      3.2     0.4    -      -       -      -
    264F  ALA*     1.3    77.8    -      -       -      +
    266F  SER*     1.3    56.1    +      -       -      +
    268F  VAL*     3.3    11.1    -      -       -      +
    269F  SER*     3.3    24.4    +      -       -      -
    274F  ARG*     5.1     2.4    +      -       -      -
    282F  GLN*     3.7    14.7    +      -       -      +
    288F  ASP*     5.9     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 266 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298B  GLY*     4.7    13.4    +      -       -      -
    262F  THR      3.1     6.5    +      -       -      -
    263F  GLN*     2.6    25.2    +      -       -      +
    265F  GLY*     1.3    75.4    -      -       -      +
    267F  GLU*     1.3    65.6    +      -       -      +
    268F  VAL      3.2     3.0    +      -       -      -
    269F  SER*     3.3    16.1    +      -       -      -
    270F  ALA*     3.9     6.1    +      -       -      +
    280F  GLY      4.6     7.0    -      -       -      +
    281F  TYR*     4.5    15.2    -      -       -      -
    282F  GLN*     3.2    26.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 267 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298B  GLY*     3.9     8.3    -      -       -      +
    299B  ASP*     3.4    47.1    -      -       +      +
    301B  PHE*     5.0     1.0    -      -       -      +
    302B  TYR*     3.3    20.6    +      -       -      +
    226F  PRO*     3.6    20.3    -      -       +      +
    229F  ARG*     2.8    35.3    +      -       -      -
    263F  GLN*     3.6    19.5    -      -       -      +
    264F  ALA*     3.2     8.4    +      -       -      +
    266F  SER*     1.3    79.7    +      -       -      +
    268F  VAL*     1.3    58.1    +      -       -      +
    270F  ALA*     4.4     8.0    +      -       -      +
    271F  LEU*     4.3    11.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 268 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19F  ALA*     4.2     6.1    -      -       +      -
     20F  ILE*     3.5    26.4    -      -       +      +
     62F  ILE*     4.4    19.5    -      -       +      -
    226F  PRO*     3.8    32.5    -      -       +      -
    227F  GLY      5.0     0.4    -      -       -      +
    264F  ALA      3.7     3.3    +      -       -      +
    265F  GLY*     3.3    18.8    -      -       -      +
    267F  GLU*     1.3    76.3    -      -       -      +
    269F  SER*     1.3    61.0    +      -       -      +
    270F  ALA      3.1     2.9    -      -       -      -
    271F  LEU*     2.8    29.7    +      -       +      +
    272F  LEU*     3.2    24.2    +      -       +      +
    274F  ARG*     6.0     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 269 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265F  GLY      3.3    15.4    +      -       -      -
    266F  SER*     3.3     9.5    +      -       -      -
    268F  VAL*     1.3    83.5    -      -       -      +
    270F  ALA*     1.3    60.8    +      -       -      +
    272F  LEU*     3.3    12.2    +      -       -      -
    274F  ARG*     3.2    45.8    +      -       -      +
    276F  PRO*     6.1     0.5    -      -       -      +
    282F  GLN*     3.2    33.7    -      -       -      +
    283F  PRO*     3.7     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 270 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289B  ARG*     5.1     7.4    -      -       -      -
    290B  PRO*     3.5    40.5    -      -       +      +
    266F  SER      3.9     5.5    +      -       -      +
    267F  GLU      4.7     7.9    -      -       -      +
    268F  VAL      3.1     1.0    -      -       -      -
    269F  SER*     1.3    78.7    -      -       -      +
    271F  LEU*     1.3    65.9    +      -       +      +
    272F  LEU      3.2     1.1    +      -       -      -
    273F  GLY*     3.4    12.6    +      -       -      -
    274F  ARG      4.2     7.7    +      -       -      +
----------------------------------------------------------
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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