Contacts of the helix formed by residues 233 - 246 (chain D) in PDB entry 6APL


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 ASP 233 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117D  LEU*     4.9     4.3    -      -       -      -
    202D  ASN*     6.5     1.1    -      -       +      -
    231D  PRO      3.5     1.2    -      -       -      -
    232D  SER*     1.3    83.1    -      -       -      +
    234D  ILE*     1.3    83.8    +      -       -      +
    235D  ARG*     3.1    33.4    +      -       +      +
    236D  ASP*     2.9    25.6    +      -       -      +
    237D  TYR*     3.5    12.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117D  LEU*     3.6    34.7    -      -       +      +
    118D  SER*     5.4     2.9    -      -       -      +
    121D  VAL*     5.8     4.0    -      -       +      -
    122D  ILE*     5.7     1.6    -      -       +      -
    233D  ASP*     1.3    84.4    +      -       -      +
    235D  ARG*     1.3    86.4    +      -       +      +
    237D  TYR*     2.9    15.4    +      -       +      +
    238D  VAL*     2.9    37.1    +      -       +      +
    251D  GLU*     6.0     1.1    -      -       +      +
    252D  GLY*     4.6    18.2    -      -       -      -
    253D  LEU      5.2     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 235 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  VAL*     3.8    16.2    -      -       +      +
    202D  ASN*     3.3    43.0    +      -       -      +
    205D  LYS*     4.3    10.1    -      -       -      +
    233D  ASP*     3.1    23.5    -      -       +      +
    234D  ILE*     1.3    89.0    -      -       +      +
    236D  ASP*     1.3    57.2    +      -       -      +
    238D  VAL*     3.9     5.3    -      -       -      +
    239D  MSE      2.8    33.3    +      -       -      +
    252D  GLY*     5.9     0.2    -      -       -      -
    253D  LEU*     4.1    34.4    -      -       +      +
    254D  ASP*     2.8    47.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 236 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  PHE      4.8     1.0    -      -       -      +
    200D  THR*     3.6     1.7    -      -       -      -
    201D  VAL*     2.7    40.6    +      -       -      +
    229D  PHE*     3.7    13.2    -      -       +      -
    230D  ILE      3.0    25.5    -      -       -      +
    231D  PRO*     4.3     5.6    -      -       +      -
    232D  SER*     2.9    24.6    +      -       -      -
    233D  ASP*     2.9    23.6    +      -       -      +
    235D  ARG*     1.3    73.4    -      -       -      +
    237D  TYR*     1.3    59.5    +      -       -      +
    240D  LEU*     2.8    31.5    +      -       -      +
    274D  LEU*     5.9     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92D  LEU*     5.3     0.2    -      -       -      +
    113D  GLY      5.5     1.9    +      -       -      -
    114D  TRP*     3.3    33.2    -      +       -      +
    117D  LEU*     3.9    18.2    -      -       +      -
    121D  VAL*     4.4    11.0    -      -       +      -
    122D  ILE*     4.1    20.9    -      -       +      -
    125D  THR*     3.2    37.8    -      -       +      +
    126D  LEU*     4.8     2.5    -      -       +      -
    231D  PRO*     3.3    33.1    +      -       +      +
    233D  ASP      3.5    17.3    -      -       -      -
    234D  ILE*     2.9    12.8    +      -       -      +
    236D  ASP*     1.3    78.0    -      -       +      +
    238D  VAL*     1.3    56.9    +      -       -      +
    240D  LEU*     3.2     7.1    +      -       +      +
    241D  ARG      2.8    26.7    +      -       -      -
    274D  LEU*     4.3    25.8    -      -       +      -
    277D  PRO*     4.4     4.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121D  VAL*     3.8    23.3    -      -       +      -
    234D  ILE*     2.9    31.9    +      -       +      +
    235D  ARG*     3.9     5.8    -      -       -      +
    237D  TYR*     1.3    73.9    -      -       -      +
    239D  MSE      1.3    57.4    +      -       -      +
    241D  ARG*     3.4    12.6    +      -       -      +
    242D  SER*     2.8    37.7    +      -       -      +
    249D  VAL*     3.6    28.3    -      -       +      -
    250D  PRO*     4.5     4.5    -      -       +      -
    251D  GLU*     4.1    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with MSE 239 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  VAL*     3.6    29.6    -      -       +      -
    204D  MSE      6.4     0.2    -      -       -      -
    205D  LYS*     4.9     1.1    -      -       +      -
    229D  PHE*     3.6    19.1    -      -       +      -
    235D  ARG      2.8    21.7    +      -       -      +
    236D  ASP      3.9     0.4    -      -       -      +
    238D  VAL*     1.3    73.8    -      -       -      +
    240D  LEU*     1.3    57.9    +      -       -      +
    242D  SER*     3.7     3.6    -      -       -      -
    243D  ALA*     2.8    32.6    +      -       -      +
    249D  VAL*     4.6    14.8    -      -       +      +
    254D  ASP*     3.8    29.4    -      -       +      -
    257D  ASP*     4.1    10.5    -      -       -      +
    259D  PRO*     4.6    11.0    -      -       -      -
    262D  TYR*     4.1    28.5    -      -       +      -
    263D  PHE*     4.1    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 240 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125D  THR*     5.3     8.3    -      -       -      +
    129D  LEU*     4.1    11.4    -      -       +      -
    229D  PHE*     3.6    24.6    -      -       +      -
    236D  ASP      2.8    19.8    +      -       -      +
    237D  TYR*     3.5     8.7    -      -       +      +
    239D  MSE      1.3    77.2    -      -       -      +
    241D  ARG*     1.3    63.0    +      -       -      +
    243D  ALA*     3.4     0.9    +      -       -      +
    244D  ILE*     3.1    41.4    +      -       +      +
    272D  PHE*     3.5    32.1    -      -       +      +
    273D  LYS      4.3     3.8    -      -       -      +
    274D  LEU*     3.7    44.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 241 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120D  GLN*     4.3     5.7    +      -       -      -
    121D  VAL*     3.7    30.3    -      -       -      +
    124D  SER*     3.2    45.2    +      -       -      +
    125D  THR*     3.5    20.6    -      -       +      +
    128D  LEU*     4.2    10.3    -      -       +      -
    237D  TYR      2.8    12.4    +      -       -      +
    238D  VAL*     3.8    10.2    -      -       -      +
    240D  LEU*     1.3    74.2    -      -       -      +
    242D  SER*     1.3    64.5    +      -       -      +
    243D  ALA      3.3     0.2    +      -       -      -
    244D  ILE*     3.3     1.8    +      -       -      +
    245D  LEU*     3.0    52.4    +      -       +      +
    247D  VAL*     5.9     0.7    -      -       -      -
    250D  PRO*     4.2    26.5    -      -       -      +
    251D  GLU*     4.2    15.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 242 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  VAL*     2.8    20.3    +      -       -      +
    239D  MSE      3.9     4.9    -      -       -      -
    241D  ARG*     1.3    78.7    -      -       -      +
    243D  ALA*     1.3    56.6    +      -       -      +
    246D  GLY*     2.8    24.3    +      -       -      -
    247D  VAL*     3.1    39.6    +      -       -      +
    249D  VAL*     3.3    29.2    -      -       -      -
    250D  PRO*     3.8     9.4    -      -       -      +
    259D  PRO*     3.4     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 243 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229D  PHE*     4.4     1.6    -      -       +      -
    239D  MSE      2.8    21.8    +      -       -      +
    240D  LEU      3.7     5.2    -      -       -      +
    241D  ARG      3.2     0.2    -      -       -      -
    242D  SER*     1.3    73.7    -      -       -      +
    244D  ILE*     1.3    62.0    +      -       -      +
    246D  GLY*     3.2     4.0    +      -       -      -
    259D  PRO*     3.6    21.3    -      -       +      +
    260D  HIS*     5.5     0.2    -      -       -      -
    263D  PHE*     4.1     7.0    -      -       +      -
    267D  ALA*     3.2    21.7    -      -       -      +
    272D  PHE*     3.5    39.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 244 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125D  THR      5.5     0.7    -      -       -      +
    128D  LEU*     3.7    31.4    -      -       +      +
    129D  LEU*     3.7    31.2    -      -       +      -
    240D  LEU*     3.1    31.8    +      -       +      +
    241D  ARG*     5.4     0.2    -      -       -      -
    243D  ALA*     1.3    76.0    -      -       -      +
    245D  LEU*     1.3    62.2    +      -       +      +
    267D  ALA      2.9    22.3    -      -       -      +
    268D  SER*     3.8    18.8    -      -       -      +
    269D  ALA*     4.2    10.1    -      -       +      +
    272D  PHE*     3.7    27.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 245 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128D  LEU*     3.7    24.9    -      -       +      -
    241D  ARG*     3.0    45.8    +      -       +      +
    244D  ILE*     1.3    76.7    -      -       +      +
    246D  GLY*     1.3    63.2    +      -       -      +
    247D  VAL*     3.5    23.4    +      -       +      +
    267D  ALA*     4.7     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 246 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242D  SER      2.8     8.8    +      -       -      -
    243D  ALA      3.2    10.1    +      -       -      -
    244D  ILE      3.3     0.4    +      -       -      -
    245D  LEU*     1.3    79.4    -      -       -      +
    247D  VAL*     1.3    58.6    +      -       -      +
    248D  PRO*     4.3     3.5    -      -       -      +
    259D  PRO*     4.6     2.2    -      -       -      +
    260D  HIS*     3.4    37.3    +      -       -      -
    267D  ALA*     4.0     5.2    -      -       -      -
----------------------------------------------------------
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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