Contacts of the helix formed by residues 474 - 484 (chain B) in PDB entry 1F89


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 PHE 474 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  VAL*     6.3     0.2    -      -       +      -
    275A  PRO      4.4     9.0    -      -       -      -
    277A  THR      4.1     7.6    -      -       -      -
    278A  LYS*     3.3    50.9    -      -       +      -
    282A  PHE*     5.0     2.5    -      +       +      -
    430B  HIS*     3.5    55.9    -      +       +      +
    470B  TYR*     3.5    43.5    -      +       -      -
    471B  ASP      3.3    11.6    +      -       -      +
    472B  MET      3.2     1.4    -      -       -      -
    473B  ARG*     1.3    88.6    -      -       +      +
    475B  PRO*     1.3    64.2    -      -       -      +
    476B  GLU*     3.0    14.5    +      -       -      +
    477B  LEU*     3.3    14.2    +      -       +      +
    478B  ALA      4.3     0.7    +      -       -      -
    491B  TYR*     5.1     0.9    +      -       -      -
    511B  ARG*     4.2     3.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 475 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  PRO*     5.8     3.6    -      -       +      -
    179A  MET*     4.4    11.9    -      -       +      -
    183A  ARG*     5.1     1.8    -      -       -      +
    214A  ASP*     3.5    26.9    -      -       +      +
    278A  LYS*     5.3     6.5    -      -       -      +
    473B  ARG      3.7     3.4    -      -       -      +
    474B  PHE*     1.3    80.7    -      -       -      +
    476B  GLU*     1.3    76.8    +      -       -      +
    477B  LEU      3.3     0.4    -      -       -      -
    478B  ALA*     3.1     4.3    +      -       +      +
    479B  MET*     2.9    43.9    +      -       +      +
    511B  ARG*     3.4    32.9    -      -       -      +
    514B  ASP*     5.8     2.5    -      -       -      +
    515B  ASN*     6.1     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 476 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  MET*     4.3     1.9    -      -       -      +
    183A  ARG*     2.8    37.9    +      -       -      -
    278A  LYS*     4.7     3.6    -      -       -      +
    280A  ARG*     5.6     2.4    +      -       -      -
    282A  PHE*     3.0    48.7    -      -       +      -
    474B  PHE*     3.0     6.0    +      -       -      +
    475B  PRO*     1.3    90.8    -      -       -      +
    477B  LEU*     1.3    65.4    +      -       -      +
    478B  ALA      3.1     0.3    +      -       -      -
    479B  MET*     3.6    16.1    -      -       +      +
    480B  LEU*     2.8    30.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 477 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282A  PHE*     3.8    22.4    -      -       +      -
    426B  HIS*     5.0     7.9    -      -       +      +
    429B  VAL*     4.8    11.0    -      -       +      -
    430B  HIS*     3.4    25.1    -      -       +      +
    454B  SER*     4.4    14.7    +      -       -      +
    466B  VAL      5.9     0.2    -      -       -      +
    467B  GLY*     5.1     3.8    -      -       -      -
    471B  ASP*     3.4    50.9    -      -       +      +
    474B  PHE      3.3     8.5    +      -       -      +
    476B  GLU*     1.3    78.1    -      -       -      +
    478B  ALA*     1.3    61.2    +      -       -      +
    480B  LEU*     3.6     6.7    -      -       +      +
    481B  SER*     3.3    26.5    +      -       -      -
    489B  MET*     4.0    12.8    -      -       +      +
    491B  TYR*     4.8     0.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 478 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474B  PHE      4.3     0.8    +      -       -      -
    475B  PRO      3.1     8.9    +      -       -      +
    477B  LEU*     1.3    76.6    -      -       -      +
    479B  MET*     1.3    66.9    +      -       -      +
    480B  LEU      3.1     0.2    +      -       -      -
    481B  SER*     3.4     1.9    +      -       -      -
    482B  ALA*     2.8    27.4    +      -       -      +
    489B  MET*     3.9    20.1    -      -       +      +
    491B  TYR*     3.8     8.9    +      -       -      +
    511B  ARG*     3.6    30.3    -      -       +      +
    515B  ASN*     3.5    15.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 479 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  PRO*     4.6     8.3    -      -       +      -
    176A  GLU*     4.2     3.1    -      -       -      +
    179A  MET*     3.7    29.2    -      -       +      +
    475B  PRO*     2.9    55.6    +      -       +      +
    476B  GLU*     3.4    15.5    -      -       +      +
    478B  ALA*     1.3    75.7    -      -       -      +
    480B  LEU*     1.3    59.4    +      -       +      +
    483B  ARG*     2.9    72.2    +      -       -      +
    514B  ASP*     6.3     0.9    -      -       +      -
    515B  ASN*     3.0    21.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 480 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282A  PHE*     4.1    36.3    -      -       +      +
    454B  SER*     3.7    26.5    -      -       -      +
    476B  GLU*     2.8    22.5    +      -       +      +
    477B  LEU*     3.6     7.2    -      -       +      +
    479B  MET*     1.3    79.7    -      -       +      +
    481B  SER*     1.3    65.0    +      -       -      +
    483B  ARG*     3.4     2.5    +      -       -      +
    484B  LYS*     3.2    45.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 481 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454B  SER*     4.2     6.4    +      -       -      -
    455B  THR      3.5    12.0    +      -       -      -
    456B  THR*     2.8    31.6    +      -       -      +
    465B  GLY*     3.7    22.5    -      -       -      -
    477B  LEU      3.3    14.8    +      -       -      -
    480B  LEU*     1.3    76.5    -      -       -      +
    482B  ALA*     1.3    58.8    +      -       -      +
    484B  LYS*     3.4    10.5    +      -       -      +
    485B  GLY      3.6     0.5    +      -       -      -
    486B  ALA*     2.9    26.7    +      -       -      +
    489B  MET*     3.9     9.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 482 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478B  ALA      2.8    19.2    +      -       -      +
    479B  MET      3.8     0.2    -      -       -      +
    481B  SER*     1.3    79.3    -      -       -      +
    483B  ARG*     1.3    59.4    +      -       +      +
    485B  GLY*     3.2    15.6    +      -       -      -
    486B  ALA*     3.5    19.2    +      -       -      +
    489B  MET*     5.4     2.4    -      -       +      +
    515B  ASN*     3.6    34.1    -      -       +      +
    517B  VAL*     3.9    13.9    -      -       +      -
    571B  ARG*     4.6     9.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 483 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  PRO*     5.1     3.0    -      -       -      +
    176A  GLU*     3.0    32.9    +      -       -      -
    479B  MET*     2.9    49.1    +      -       -      +
    480B  LEU*     4.1     2.9    -      -       -      +
    482B  ALA*     1.3    74.1    -      -       +      +
    484B  LYS*     1.3    60.3    +      -       -      +
    485B  GLY*     3.0     6.4    +      -       -      -
    514B  ASP      5.7     0.8    +      -       -      -
    515B  ASN*     5.1     3.8    -      -       -      +
    576B  LEU*     6.2     3.6    -      -       +      -
    578B  LYS*     3.3    41.6    -      -       -      +
    580B  ARG*     4.6    22.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 484 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454B  SER*     5.2     6.2    +      -       -      -
    456B  THR*     4.1    28.3    +      -       +      +
    463B  LYS*     3.7    21.6    +      -       +      -
    480B  LEU*     3.2    44.6    +      -       -      +
    481B  SER*     3.6    10.3    -      -       -      +
    482B  ALA      3.2     1.2    -      -       -      -
    483B  ARG*     1.3    76.7    -      -       -      +
    485B  GLY*     1.3    57.4    +      -       -      +
    486B  ALA      3.8     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page


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