Contacts of the helix formed by residues 297 - 309 (chain J) in PDB entry 3KDO


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 SER 297 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122J  ARG*     3.6    32.5    +      -       -      +
    123J  LEU      2.9    22.0    +      -       -      -
    124J  GLU*     3.7    17.7    +      -       -      -
    289J  THR*     4.3     0.2    -      -       -      -
    296J  ILE*     1.3    76.8    -      -       -      +
    298J  MET*     1.3    63.8    +      -       -      +
    299J  PHE*     2.8    23.4    +      -       -      +
    300J  VAL*     2.9    15.4    +      -       -      +
    301J  LEU*     3.4     7.1    +      -       -      +
    333J  PHE*     4.7     3.6    -      -       -      -
    351J  HIS*     5.0     1.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 298 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122J  ARG*     4.9     0.4    -      -       -      +
    282J  ARG*     3.4    37.7    -      -       +      +
    285J  HIS*     4.4     6.3    -      -       +      +
    289J  THR*     3.8    21.2    +      -       -      +
    296J  ILE      3.5     2.8    +      -       -      -
    297J  SER*     1.3    72.1    +      -       -      +
    299J  PHE*     1.3    55.9    +      -       -      +
    301J  LEU*     3.3    20.1    +      -       +      -
    302J  ALA*     2.9    36.7    +      -       +      +
    305J  TYR*     5.3     1.3    -      -       +      -
    313J  LEU*     4.0    22.7    -      -       +      -
    314J  HIS      3.5    24.5    -      -       -      +
    315J  VAL*     4.8     4.3    -      -       +      -
    333J  PHE*     3.6    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 299 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124J  GLU      3.6     7.6    -      -       -      +
    125J  ASP*     3.3    36.8    -      -       -      -
    297J  SER*     2.8    15.7    +      -       -      +
    298J  MET*     1.3    79.5    -      -       -      +
    300J  VAL*     1.3    61.2    +      -       -      +
    303J  LYS*     3.4     8.3    +      -       -      +
    332J  GLY*     4.2    15.7    -      -       -      -
    333J  PHE*     3.6    25.3    -      +       +      -
    336J  LEU*     3.2    59.0    -      -       +      +
    342J  TYR*     3.7    22.2    -      +       -      -
    351J  HIS*     3.4    43.5    -      +       +      +
    352J  LEU      5.5     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 300 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105J  LEU*     5.6     1.8    -      -       +      -
    123J  LEU*     3.8    46.9    -      -       +      +
    124J  GLU      3.9     1.1    -      -       -      +
    125J  ASP*     3.8    28.0    -      -       -      +
    126J  LEU*     4.4    13.9    -      -       +      +
    296J  ILE*     4.0    10.1    -      -       +      -
    297J  SER      2.9     8.2    +      -       -      +
    299J  PHE*     1.3    76.3    -      -       -      +
    301J  LEU*     1.3    66.9    +      -       +      +
    303J  LYS*     3.2     6.6    +      -       -      +
    304J  LEU*     3.1    42.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 301 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257J  VAL*     4.3    11.0    -      -       +      -
    261J  TRP*     3.5    33.0    -      -       +      -
    285J  HIS*     4.2    12.3    -      -       +      -
    288J  PHE*     3.7    37.9    -      -       +      -
    289J  THR*     3.9    11.4    -      -       +      -
    296J  ILE*     4.6    10.3    -      -       +      -
    297J  SER      3.4     8.5    +      -       -      +
    298J  MET*     3.3    17.8    +      -       -      +
    300J  VAL*     1.3    81.9    -      -       +      +
    302J  ALA*     1.3    62.9    +      -       -      +
    304J  LEU*     3.3     4.0    +      -       -      +
    305J  TYR*     2.9    45.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 302 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298J  MET*     2.9    24.7    +      -       +      +
    299J  PHE*     3.9     6.3    -      -       -      +
    300J  VAL      3.3     0.2    -      -       -      -
    301J  LEU*     1.3    74.9    -      -       -      +
    303J  LYS*     1.3    63.1    +      -       -      +
    305J  TYR*     3.7     1.0    +      -       -      +
    306J  ARG*     3.2    16.8    +      -       -      +
    313J  LEU*     3.8    17.7    -      -       +      -
    333J  PHE*     4.7    12.8    -      -       +      -
    336J  LEU*     4.3     9.9    -      -       +      -
    337J  LEU*     3.4    31.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 303 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125J  ASP*     3.6    18.6    +      -       -      +
    126J  LEU*     2.9    27.3    +      -       +      +
    127J  TYR*     4.1     1.6    -      -       -      +
    128J  PHE*     5.1     3.8    -      -       +      -
    299J  PHE*     3.4     9.6    +      -       -      +
    300J  VAL*     3.2    10.8    +      -       -      +
    302J  ALA*     1.3    76.5    -      -       -      +
    304J  LEU*     1.3    64.4    +      -       +      +
    306J  ARG*     3.2     6.7    +      -       -      +
    307J  LEU*     2.9    42.4    +      -       +      +
    336J  LEU*     3.9    27.6    -      -       +      +
    352J  LEU      5.1     1.0    +      -       -      -
    354J  GLN*     2.6    50.1    -      -       -      +
    356J  PHE*     4.0    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 304 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101J  LEU*     4.0    14.8    -      -       +      -
    105J  LEU*     3.9    27.1    -      -       +      -
    126J  LEU*     4.5     5.6    -      -       +      -
    128J  PHE*     3.7    35.0    -      -       +      -
    136J  PHE*     5.2     0.8    -      -       +      -
    261J  TRP*     3.7    37.2    -      -       +      -
    300J  VAL*     3.1    30.1    +      -       +      +
    301J  LEU      3.9     0.4    -      -       -      +
    303J  LYS*     1.3    79.3    -      -       +      +
    305J  TYR*     1.3    58.7    +      -       -      +
    307J  LEU*     3.3     8.5    +      -       +      +
    308J  ILE*     2.9    34.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 305 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256J  VAL*     3.6    21.9    +      -       +      -
    257J  VAL*     3.4    31.2    -      -       +      +
    261J  TRP*     3.6    33.1    -      +       -      -
    264J  LEU*     3.5    33.0    -      -       +      -
    282J  ARG*     5.6     1.1    -      -       +      -
    298J  MET*     5.3     2.0    -      -       +      -
    301J  LEU*     2.9    47.6    +      -       +      +
    302J  ALA      4.1     2.7    -      -       -      +
    304J  LEU*     1.3    74.3    -      -       -      +
    306J  ARG*     1.3    64.7    +      -       -      +
    308J  ILE*     3.7     2.4    +      -       +      +
    309J  GLY      3.1     5.2    +      -       -      -
    310J  ILE*     2.9    42.9    +      -       +      +
    313J  LEU*     4.0    28.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 306 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138J  GLY*     3.4     0.2    -      -       -      -
    139J  PRO*     3.3    22.4    -      -       +      +
    302J  ALA      3.2    18.1    +      -       -      +
    303J  LYS*     3.6     4.7    -      -       -      +
    305J  TYR*     1.3    75.2    -      -       -      +
    307J  LEU*     1.3    65.4    +      -       -      +
    309J  GLY      3.2     8.8    +      -       -      -
    310J  ILE      4.5     7.4    -      -       -      -
    336J  LEU      2.8    34.7    +      -       -      -
    337J  LEU*     3.3    31.8    +      -       +      +
    338J  ARG      4.0     1.0    +      -       -      -
    339J  GLU      2.8    32.5    +      -       -      -
    340J  SER*     4.3     2.6    -      -       -      +
    356J  PHE*     3.4    29.2    -      -       +      +
    359J  ILE*     2.9    31.1    +      -       +      +
    360J  LYS      3.0    23.5    +      -       -      +
    361J  ALA*     3.8     4.4    -      -       -      +
    362J  ALA*     4.3     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 307 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128J  PHE*     3.5    38.1    -      -       +      -
    133J  ILE*     3.9    24.5    -      -       +      -
    136J  PHE*     3.2    34.4    -      -       +      +
    138J  GLY*     2.9    22.4    +      -       -      -
    303J  LYS*     2.9    34.9    +      -       +      +
    304J  LEU*     3.3     7.4    +      -       +      +
    306J  ARG*     1.3    77.3    -      -       -      +
    308J  ILE*     1.3    63.5    +      -       -      +
    356J  PHE*     4.0    19.1    -      -       +      -
    359J  ILE*     4.1    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 308 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101J  LEU*     4.0    19.1    -      -       +      -
    136J  PHE*     4.1    21.3    -      -       +      -
    137J  ASP*     4.8     2.6    +      -       -      +
    138J  GLY      3.9     4.0    +      -       -      +
    261J  TRP*     4.0    20.0    -      -       +      +
    264J  LEU*     4.1    29.4    -      -       +      +
    265J  ARG*     4.1    27.9    -      -       +      +
    268J  ARG*     3.4    37.2    +      -       +      +
    304J  LEU      2.9    21.8    +      -       -      +
    305J  TYR*     3.9     5.4    -      -       +      +
    307J  LEU*     1.3    75.6    -      -       -      +
    309J  GLY*     1.3    59.0    +      -       -      +
    310J  ILE*     4.8     3.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 309 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138J  GLY      3.3    26.5    -      -       -      -
    139J  PRO*     3.4    10.5    -      -       -      +
    140J  ALA      4.5     0.9    +      -       -      -
    268J  ARG*     3.8    18.5    +      -       -      +
    278J  ILE*     3.8     8.5    -      -       -      +
    305J  TYR      3.1     2.2    +      -       -      -
    306J  ARG      3.2     3.4    +      -       -      -
    308J  ILE*     1.3    80.9    -      -       -      +
    310J  ILE*     1.3    67.9    +      -       -      +
    311J  ASP*     3.4     5.9    +      -       -      +
----------------------------------------------------------
 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