Contacts of the helix formed by residues 1202 - 1213 (chain A) in PDB entry 6CNB


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 ILE1202 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1188A  ILE*     5.7     2.2    -      -       +      -
   1201A  THR*     1.3    86.7    -      -       +      +
   1203A  GLU*     1.3    68.5    +      -       +      +
   1204A  ASP      2.7     4.7    +      -       -      -
   1205A  ILE*     2.5    58.3    +      -       +      +
   1206A  ALA*     2.8    13.8    +      -       +      -
   1224A  ILE*     3.5    45.3    -      -       +      +
   1228A  ASP*     4.0    11.0    -      -       -      +
   1229A  ARG      3.1    35.2    -      -       -      +
   1230A  ILE*     4.8     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1201A  THR*     5.0     0.8    -      -       -      -
   1202A  ILE*     1.3    83.7    -      -       +      +
   1204A  ASP*     1.3    62.8    +      -       -      +
   1206A  ALA*     3.5    18.7    -      -       -      +
   1207A  VAL*     2.9    34.6    +      -       +      +
   1222A  VAL*     5.0     8.9    -      -       -      +
   1223A  ASN*     5.9     1.9    -      -       -      -
   1224A  ILE*     5.6     4.5    -      -       -      +
      1E  MET*     5.2    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1199A  GLU      3.8     7.0    -      -       -      +
   1200A  LEU*     3.3    35.3    +      -       +      -
   1201A  THR*     3.8     4.7    +      -       -      +
   1202A  ILE      2.7     4.3    +      -       -      +
   1203A  GLU*     1.3    75.8    -      -       -      +
   1205A  ILE*     1.3    57.8    +      -       +      +
   1207A  VAL*     3.1     9.5    -      -       -      +
   1208A  ALA*     2.9    27.6    +      -       -      +
      1E  MET*     3.4    32.3    -      -       -      +
      3E  GLN*     4.7     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1169A  VAL*     5.9     1.6    -      -       +      -
   1188A  ILE*     4.0    26.9    -      -       +      -
   1200A  LEU*     3.8    31.0    -      -       +      -
   1201A  THR      5.3     0.4    -      -       -      +
   1202A  ILE*     2.5    42.8    +      -       +      +
   1204A  ASP*     1.3    72.8    -      -       +      +
   1206A  ALA*     1.3    65.7    +      -       -      +
   1208A  ALA*     3.3     9.3    -      -       -      +
   1209A  ILE*     2.9    38.1    +      -       +      +
   1230A  ILE*     4.7    13.2    -      -       +      -
   1272A  VAL*     3.5    29.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA1206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1202A  ILE*     2.8    15.2    +      -       +      +
   1203A  GLU*     3.4    33.7    -      -       -      +
   1204A  ASP      3.2     0.2    -      -       -      -
   1205A  ILE*     1.3    85.5    -      -       -      +
   1207A  VAL*     1.3    64.6    +      -       -      +
   1209A  ILE*     3.1    19.0    +      -       -      +
   1210A  THR*     3.7     2.9    +      -       -      +
   1222A  VAL*     4.1    32.8    -      -       +      +
   1223A  ASN*     6.4     1.1    -      -       -      -
   1230A  ILE*     6.1     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1203A  GLU*     2.9    28.3    +      -       +      +
   1204A  ASP*     3.1    19.1    -      -       -      +
   1206A  ALA*     1.3    73.8    -      -       -      +
   1208A  ALA*     1.3    61.6    +      -       -      +
   1210A  THR*     3.0    19.2    -      -       +      +
   1211A  ARG*     2.9    59.4    +      -       +      +
   1222A  VAL*     5.1     1.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1204A  ASP      2.9    19.8    +      -       -      +
   1205A  ILE*     3.3    13.0    -      -       +      +
   1206A  ALA      3.1     0.2    -      -       -      -
   1207A  VAL*     1.3    77.4    -      -       +      +
   1209A  ILE*     1.3    64.5    +      -       +      +
   1211A  ARG*     3.1    11.6    +      -       -      +
   1212A  ALA*     2.9    26.0    +      -       -      +
   1271A  VAL      4.7     2.8    -      -       -      +
   1272A  VAL*     4.0    25.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1166A  LEU*     4.0    26.2    -      -       +      -
   1205A  ILE*     2.9    33.8    +      -       +      +
   1206A  ALA*     3.1    11.0    +      -       -      +
   1208A  ALA*     1.3    78.1    -      -       +      +
   1210A  THR*     1.3    54.7    +      -       -      +
   1212A  ALA*     3.1     3.8    +      -       -      +
   1213A  SER*     2.6    40.3    +      -       -      -
   1217A  ILE*     5.8     5.4    -      -       +      -
   1222A  VAL*     6.2     4.5    -      -       +      -
   1230A  ILE*     5.8     5.8    -      -       +      -
   1232A  ILE*     5.5    11.2    -      -       +      -
   1267A  LEU*     4.4    24.2    -      -       +      -
   1270A  VAL*     4.7     8.0    -      -       +      +
   1271A  VAL      5.3     3.4    -      -       -      +
   1272A  VAL*     6.1     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1206A  ALA      3.7     1.9    +      -       -      +
   1207A  VAL*     3.0    32.1    +      -       +      +
   1209A  ILE*     1.3    80.7    -      -       -      +
   1211A  ARG*     1.3    62.6    +      -       +      +
   1213A  SER*     2.5    23.3    +      -       -      -
   1214A  LYS*     4.1     8.8    +      -       -      +
   1218A  GLN      5.3     1.1    -      -       -      -
   1219A  ALA*     3.2    38.2    -      -       +      +
   1220A  SER      4.2    10.0    +      -       -      +
   1222A  VAL*     6.0     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1207A  VAL*     2.9    56.5    +      -       -      +
   1208A  ALA*     3.2    12.1    -      -       -      +
   1210A  THR*     1.3    82.0    -      -       -      +
   1212A  ALA*     1.3    63.8    +      -       -      +
   1213A  SER      3.1     0.3    +      -       -      -
   1214A  LYS*     3.3    36.5    +      -       -      +
      4E  GLU*     5.0     9.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1208A  ALA      2.9    13.3    +      -       -      +
   1209A  ILE*     4.0     1.8    -      -       -      +
   1211A  ARG*     1.3    72.5    -      -       -      +
   1213A  SER*     1.3    60.8    +      -       -      +
   1214A  LYS*     2.9     8.8    +      -       -      +
   1215A  LEU*     3.2    28.9    +      -       +      +
   1217A  ILE*     5.4     0.2    -      -       -      +
   1270A  VAL*     4.7    16.0    -      -       +      +
   1271A  VAL*     3.6    36.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER1213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1209A  ILE*     2.6    23.2    +      -       -      -
   1210A  THR*     2.5    33.5    +      -       -      -
   1211A  ARG      3.1     0.2    -      -       -      -
   1212A  ALA*     1.3    71.7    -      -       -      +
   1214A  LYS*     1.3    53.9    +      -       -      +
   1215A  LEU      3.0     0.4    -      -       -      -
   1216A  LYS      2.7    11.0    +      -       -      -
   1217A  ILE*     2.6    72.5    +      -       -      +
   1218A  GLN      4.4     5.3    -      -       -      -
   1219A  ALA*     4.7     0.7    +      -       -      +
   1270A  VAL*     6.1     0.6    -      -       -      +
----------------------------------------------------------
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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