Contacts of the helix formed by residues 297 - 309 (chain I) 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 I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122I  ARG*     3.5    31.3    +      -       -      +
    123I  LEU      2.9    21.9    +      -       -      -
    124I  GLU*     3.7    16.5    +      -       -      -
    289I  THR*     4.5     0.2    -      -       -      -
    296I  ILE*     1.3    77.7    -      -       -      +
    298I  MET*     1.3    64.1    +      -       -      +
    299I  PHE*     2.8    24.1    +      -       -      +
    300I  VAL*     3.0    15.6    +      -       -      +
    301I  LEU*     3.5     7.6    +      -       -      +
    333I  PHE*     4.6     4.3    -      -       -      -
    351I  HIS*     5.0     2.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 298 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122I  ARG*     4.8     0.4    -      -       -      +
    282I  ARG*     3.4    38.6    -      -       +      +
    285I  HIS*     4.4     4.3    -      -       +      -
    289I  THR*     4.0    18.6    +      -       -      +
    296I  ILE      3.6     2.8    +      -       -      -
    297I  SER*     1.3    73.4    +      -       -      +
    299I  PHE*     1.3    56.0    +      -       -      +
    301I  LEU*     3.7    25.4    -      -       +      -
    302I  ALA*     2.9    32.1    +      -       +      +
    305I  TYR*     5.2     0.4    -      -       +      -
    313I  LEU*     4.0    24.2    -      -       +      -
    314I  HIS      3.4    24.7    -      -       -      +
    315I  VAL*     4.8     4.5    -      -       +      -
    333I  PHE*     3.6    33.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 299 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124I  GLU      3.6     7.4    -      -       -      +
    125I  ASP*     3.3    38.1    -      -       -      -
    297I  SER*     2.8    17.7    +      -       -      +
    298I  MET*     1.3    79.0    -      -       -      +
    300I  VAL*     1.3    60.0    +      -       -      +
    302I  ALA*     3.4     1.6    +      -       -      -
    303I  LYS*     3.3    18.3    +      -       -      +
    332I  GLY*     4.1    17.3    -      -       -      -
    333I  PHE*     3.6    24.6    -      +       +      -
    336I  LEU*     3.3    41.1    -      -       +      +
    342I  TYR*     3.8    22.4    -      +       -      -
    351I  HIS*     3.4    47.1    -      +       +      +
----------------------------------------------------------
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Residues in contact with VAL 300 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105I  LEU*     5.3     1.8    -      -       +      -
    123I  LEU*     3.7    34.5    -      -       +      +
    124I  GLU      3.8     1.1    -      -       -      +
    125I  ASP*     3.7    32.8    -      -       -      +
    126I  LEU*     4.0    20.0    -      -       +      +
    296I  ILE*     3.9    13.7    -      -       +      -
    297I  SER      3.0     9.1    +      -       -      +
    299I  PHE*     1.3    75.1    -      -       -      +
    301I  LEU*     1.3    66.8    +      -       +      +
    303I  LYS*     3.3     6.2    +      -       -      +
    304I  LEU*     3.0    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 301 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257I  VAL*     4.3     4.7    -      -       +      -
    261I  TRP*     4.2    17.5    -      -       +      -
    282I  ARG*     5.8     0.2    -      -       +      -
    285I  HIS*     4.3     8.7    -      -       +      -
    288I  PHE*     3.7    31.2    -      -       +      -
    289I  THR*     3.9    13.5    -      -       +      -
    296I  ILE*     3.9    26.5    -      -       +      -
    297I  SER      3.5     1.5    +      -       -      +
    298I  MET*     3.3    23.0    +      -       -      +
    300I  VAL*     1.3    83.5    -      -       +      +
    302I  ALA*     1.3    62.8    +      -       -      +
    304I  LEU*     4.6     3.8    -      -       +      -
    305I  TYR*     2.9    61.0    +      -       +      +
    313I  LEU*     4.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 302 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298I  MET*     2.9    22.5    +      -       +      +
    299I  PHE*     3.6     7.2    -      -       -      +
    300I  VAL      3.2     0.2    -      -       -      -
    301I  LEU*     1.3    76.7    -      -       -      +
    303I  LYS*     1.3    63.1    +      -       -      +
    305I  TYR*     4.2     1.0    -      -       -      +
    306I  ARG*     3.1    17.7    +      -       -      +
    313I  LEU*     3.9    15.3    -      -       +      -
    315I  VAL*     5.6     0.2    -      -       +      -
    333I  PHE*     4.7    14.4    -      -       +      +
    336I  LEU*     4.2     9.9    -      -       +      -
    337I  LEU*     3.2    32.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 303 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125I  ASP*     3.4    19.8    +      -       -      +
    126I  LEU*     2.8    33.3    +      -       +      +
    127I  TYR*     4.3     1.0    -      -       -      +
    128I  PHE*     5.4     3.4    -      -       +      -
    133I  ILE*     5.9     0.2    -      -       +      -
    299I  PHE*     3.3     8.7    +      -       -      +
    300I  VAL*     3.3     9.9    +      -       -      +
    302I  ALA*     1.3    77.7    -      -       -      +
    304I  LEU*     1.3    64.3    +      -       +      +
    306I  ARG*     3.1     6.8    +      -       -      +
    307I  LEU*     2.8    52.7    +      -       +      +
    336I  LEU*     4.0    28.0    -      -       +      +
    337I  LEU*     5.4     0.2    -      -       -      -
    342I  TYR*     6.1     0.2    -      -       -      -
    352I  LEU*     5.3     1.6    +      -       -      +
    354I  GLN*     3.0    42.9    -      -       +      +
    356I  PHE*     4.2     8.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 304 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101I  LEU*     3.9    23.6    -      -       +      -
    105I  LEU*     4.0    24.2    -      -       +      -
    126I  LEU*     4.5     7.6    -      -       +      -
    128I  PHE*     4.1    22.9    -      -       +      -
    136I  PHE*     5.4     1.1    -      -       +      -
    261I  TRP*     3.7    35.9    -      -       +      -
    300I  VAL*     3.0    38.6    +      -       +      +
    301I  LEU*     4.0     0.7    -      -       +      +
    303I  LYS*     1.3    79.9    -      -       +      +
    305I  TYR*     1.3    58.3    +      -       -      +
    307I  LEU*     3.3    10.2    +      -       +      +
    308I  ILE*     2.8    35.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 305 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256I  VAL*     3.6    23.5    +      -       +      -
    257I  VAL*     3.3    31.6    -      -       +      +
    261I  TRP*     3.7    30.6    -      +       -      -
    264I  LEU*     3.4    34.8    -      -       +      -
    282I  ARG*     5.6     1.1    -      -       +      -
    288I  PHE*     5.9     0.2    -      -       -      -
    298I  MET*     5.2     2.2    -      -       +      -
    301I  LEU*     2.9    49.6    +      -       +      +
    304I  LEU*     1.3    72.1    -      -       -      +
    306I  ARG*     1.3    63.9    +      -       -      +
    308I  ILE*     3.5     1.9    +      -       +      +
    309I  GLY      3.0     6.1    +      -       -      -
    310I  ILE*     2.9    42.4    +      -       +      +
    313I  LEU*     4.0    30.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 306 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138I  GLY*     3.5     0.5    -      -       -      -
    139I  PRO*     3.2    27.6    -      -       +      +
    302I  ALA      3.1    20.5    +      -       -      +
    303I  LYS*     3.5     4.5    -      -       -      +
    305I  TYR*     1.3    76.7    -      -       -      +
    307I  LEU*     1.3    63.6    +      -       -      +
    309I  GLY      3.3     3.8    +      -       -      -
    310I  ILE      4.6     8.3    -      -       -      -
    336I  LEU      2.6    36.8    +      -       -      -
    337I  LEU*     3.2    32.9    +      -       +      +
    339I  GLU      2.8    33.5    +      -       -      -
    340I  SER*     4.1     2.4    -      -       -      +
    356I  PHE*     3.5    31.5    -      -       +      +
    359I  ILE*     3.2    26.0    +      -       +      +
    360I  LYS      3.0    24.0    +      -       -      +
    361I  ALA*     3.9     4.0    -      -       -      +
    362I  ALA*     4.2    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 307 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128I  PHE*     3.7    35.0    -      -       +      -
    133I  ILE*     3.9    22.7    -      -       +      -
    136I  PHE*     3.2    34.9    -      -       +      +
    137I  ASP      3.9     0.2    +      -       -      -
    138I  GLY*     3.0    22.5    +      -       -      -
    303I  LYS*     2.8    37.4    +      -       +      +
    304I  LEU*     3.3     9.4    +      -       +      +
    306I  ARG*     1.3    74.3    -      -       -      +
    308I  ILE*     1.3    67.1    +      -       -      +
    356I  PHE*     4.2    20.9    -      -       +      -
    359I  ILE*     4.3    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 308 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101I  LEU*     4.0    15.7    -      -       +      -
    136I  PHE*     4.1    13.0    -      -       +      -
    137I  ASP*     5.0     1.9    +      -       -      +
    138I  GLY      4.1     3.5    +      -       -      +
    261I  TRP*     3.8    25.1    -      -       +      +
    264I  LEU*     3.7    42.0    -      -       +      +
    265I  ARG*     4.3    22.1    +      -       +      +
    268I  ARG*     3.3    39.0    +      -       +      +
    304I  LEU      2.8    22.5    +      -       -      +
    305I  TYR*     3.8     5.8    -      -       +      +
    307I  LEU*     1.3    75.8    -      -       -      +
    309I  GLY*     1.3    58.6    +      -       -      +
    310I  ILE*     4.7     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 309 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138I  GLY      3.2    27.6    -      -       -      -
    139I  PRO*     3.4    10.7    -      -       -      +
    140I  ALA      4.5     0.9    +      -       -      -
    268I  ARG*     4.0    10.6    +      -       -      +
    278I  ILE*     3.8    15.4    -      -       -      +
    305I  TYR      3.0     3.8    +      -       -      -
    306I  ARG      3.6     1.8    -      -       -      -
    307I  LEU      3.2     1.4    -      -       -      -
    308I  ILE*     1.3    80.5    -      -       -      +
    310I  ILE*     1.3    64.7    -      -       -      +
    311I  ASP*     3.3     6.4    +      -       -      +
----------------------------------------------------------
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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