Contacts of the helix formed by residues 1120 - 1134 (chain A) in PDB entry 1N35


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 ASP1120 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007A  PRO*     6.1     0.6    -      -       -      +
   1015A  LYS*     4.7     8.3    -      -       -      +
   1115A  THR*     4.6     0.4    -      -       -      -
   1118A  GLY      4.3     0.2    +      -       -      -
   1119A  LEU*     1.3    74.6    -      -       -      +
   1121A  VAL*     1.3    63.1    +      -       -      +
   1122A  ASN*     2.9    25.9    +      -       -      +
   1123A  ALA*     2.8    41.6    +      -       +      +
   1124A  ILE*     2.8    18.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1110A  LEU*     4.4    12.2    -      -       +      +
   1112A  MET*     2.8    35.0    -      -       +      +
   1113A  ALA      3.6    23.3    -      -       -      +
   1114A  LYS*     4.3     8.3    -      -       -      +
   1115A  THR*     4.1    19.2    -      -       +      +
   1119A  LEU      3.9     2.4    +      -       -      +
   1120A  ASP*     1.3    74.6    +      -       -      +
   1122A  ASN*     1.3    63.7    +      -       -      +
   1124A  ILE*     3.3     9.3    +      -       +      +
   1125A  ASP*     3.0    23.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN1122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1110A  LEU*     3.3    27.0    -      -       -      +
   1120A  ASP*     2.9    16.4    +      -       -      +
   1121A  VAL*     1.3    79.2    -      -       -      +
   1123A  ALA*     1.3    58.2    +      -       -      +
   1125A  ASP*     3.6     6.8    +      -       -      +
   1126A  SER*     3.1    27.2    +      -       -      -
   1174A  ARG*     3.6    29.4    +      -       -      +
   1290C    C      4.7    12.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007A  PRO*     4.2    13.9    -      -       +      +
   1015A  LYS*     5.9     2.5    -      -       -      +
   1120A  ASP*     2.8    31.4    +      -       +      +
   1122A  ASN*     1.3    78.0    -      -       -      +
   1124A  ILE*     1.3    64.4    +      -       -      +
   1126A  SER*     3.1     7.6    +      -       -      -
   1127A  ALA*     3.0    23.6    +      -       -      +
   1130A  ARG*     5.2     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007A  PRO*     3.9    23.8    -      -       +      -
   1112A  MET*     4.6    20.2    -      -       +      -
   1115A  THR*     3.7    31.0    -      -       +      +
   1119A  LEU*     4.4     6.5    -      -       +      -
   1120A  ASP      2.8    17.6    +      -       -      +
   1121A  VAL*     3.3     8.9    +      -       +      +
   1123A  ALA*     1.3    74.8    -      -       -      +
   1125A  ASP*     1.3    63.2    +      -       -      +
   1127A  ALA*     3.4     2.3    +      -       -      +
   1128A  LEU*     3.2    40.2    +      -       +      +
   1144A  GLN*     5.1     5.4    -      -       +      -
   1145A  LEU*     5.0     1.6    -      -       +      -
   1148A  VAL*     3.5    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1110A  LEU*     3.8    17.3    -      -       +      -
   1111A  PHE*     3.1    27.0    +      -       -      +
   1112A  MET      4.9     0.6    +      -       -      +
   1121A  VAL      3.0    16.8    +      -       -      +
   1122A  ASN*     3.8     5.8    -      -       -      +
   1124A  ILE*     1.3    77.0    -      -       -      +
   1126A  SER*     1.3    62.7    +      -       -      +
   1128A  LEU*     3.6     8.5    +      -       -      +
   1129A  LEU*     3.2    54.1    +      -       -      +
   1171A  GLN*     3.0    32.9    +      -       -      +
   1174A  ARG*     3.6     9.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122A  ASN      3.1    18.4    +      -       -      -
   1123A  ALA*     3.1     7.8    +      -       -      -
   1125A  ASP*     1.3    76.0    +      -       -      +
   1127A  ALA*     1.3    60.3    +      -       -      +
   1129A  LEU*     3.5     3.8    +      -       -      +
   1130A  ARG*     2.8    54.2    +      -       -      +
   1174A  ARG*     3.2    34.7    +      -       -      +
   1175A  VAL      4.5     0.2    -      -       -      -
   1177A  ASN*     4.5     6.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1003A  ILE*     3.8    19.2    -      -       +      +
   1007A  PRO*     3.8    22.7    -      -       +      -
   1123A  ALA      3.0    15.0    +      -       -      +
   1124A  ILE      3.7     4.9    -      -       -      +
   1126A  SER*     1.3    75.8    -      -       -      +
   1128A  LEU*     1.3    59.3    -      -       -      +
   1130A  ARG*     3.3    17.5    +      -       -      +
   1131A  LEU*     2.9    36.8    +      -       -      +
   1144A  GLN*     3.8     7.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1111A  PHE*     4.5    10.8    -      -       +      -
   1112A  MET*     5.5     1.8    -      -       +      -
   1124A  ILE*     3.2    36.2    +      -       +      +
   1125A  ASP*     3.9     8.1    -      -       -      +
   1126A  SER      3.3     0.2    -      -       -      -
   1127A  ALA*     1.3    77.6    -      -       -      +
   1129A  LEU*     1.3    61.9    +      -       -      +
   1131A  LEU*     3.5     5.1    +      -       -      +
   1132A  ARG*     3.1    18.5    +      -       -      +
   1141A  LEU*     3.6    45.2    -      -       +      +
   1144A  GLN*     3.9    22.9    -      -       +      -
   1145A  LEU*     3.9    20.6    -      -       +      -
   1158A  LEU*     5.3     0.2    -      -       +      -
   1162A  ILE*     4.0    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1111A  PHE*     4.0    15.5    -      -       +      -
   1125A  ASP*     3.2    39.9    +      -       -      +
   1126A  SER*     4.1     2.7    -      -       -      +
   1128A  LEU*     1.3    76.9    -      -       -      +
   1130A  ARG*     1.3    61.7    +      -       -      +
   1132A  ARG*     3.2    16.6    +      -       -      +
   1133A  THR*     2.7    34.7    +      -       -      -
   1162A  ILE*     4.9     2.7    -      -       +      -
   1167A  VAL*     3.7    29.8    -      -       +      -
   1171A  GLN*     3.5    29.6    -      -       +      +
   1172A  LEU*     4.0    14.8    -      -       +      -
   1174A  ARG*     5.5     0.7    -      -       +      -
   1175A  VAL*     3.6    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1003A  ILE*     3.6    28.2    -      -       +      +
   1004A  HIS      4.8     0.6    -      -       -      +
   1005A  ASN*     3.0    45.7    -      -       -      +
   1123A  ALA      5.2     1.4    +      -       -      -
   1126A  SER*     2.8    34.9    +      -       -      +
   1127A  ALA*     3.7    24.3    -      -       -      +
   1129A  LEU*     1.3    77.6    -      -       -      +
   1131A  LEU*     1.3    52.8    +      -       -      +
   1133A  THR*     3.0     7.5    +      -       -      -
   1134A  LEU*     2.7    43.4    +      -       +      +
   1175A  VAL*     3.7    33.7    -      -       +      +
   1259A  TRP*     4.9     4.9    -      -       -      -
   1260A  MET*     3.2    41.1    +      -       -      +
   1263A  GLU*     4.1     2.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    995A  TRP*     3.6    41.1    -      -       +      -
    999A  GLY      4.5     0.4    -      -       -      +
   1002A  ILE*     4.0    22.7    -      -       +      -
   1003A  ILE*     3.7    16.8    -      -       +      +
   1127A  ALA      2.9    28.3    +      -       -      +
   1128A  LEU*     3.7     4.3    -      -       -      +
   1130A  ARG*     1.3    74.7    -      -       -      +
   1132A  ARG*     1.3    61.2    +      -       -      +
   1134A  LEU*     3.2     9.1    +      -       -      +
   1136A  ALA*     2.9    43.9    +      -       +      +
   1140A  ALA*     3.9    14.8    -      -       +      +
   1141A  LEU*     3.8    15.0    -      -       +      -
   1144A  GLN*     4.1    12.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128A  LEU      3.1    14.2    +      -       -      +
   1129A  LEU*     3.4    20.5    +      -       -      +
   1130A  ARG      3.1     0.2    -      -       -      -
   1131A  LEU*     1.3    76.7    -      -       -      +
   1133A  THR*     1.3    66.0    +      -       -      +
   1135A  GLY*     3.1    14.4    +      -       -      -
   1136A  ALA      4.8     5.1    -      -       -      +
   1141A  LEU*     4.4    12.3    -      -       +      +
   1162A  ILE*     3.0    30.6    +      -       +      -
   1163A  MET*     3.9    32.9    +      -       +      +
   1165A  GLN      2.8    27.7    +      -       -      -
   1167A  VAL*     3.4    30.1    -      -       -      +
   1172A  LEU*     4.1    13.7    -      -       -      +
   1217A  TRP*     5.6     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR1133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1129A  LEU      2.7    28.4    +      -       -      -
   1130A  ARG      3.5     4.9    -      -       -      -
   1132A  ARG*     1.3    77.9    +      -       -      +
   1134A  LEU*     1.3    56.5    +      -       -      +
   1135A  GLY      3.1     3.0    +      -       -      -
   1172A  LEU*     4.9     3.1    -      -       -      +
   1175A  VAL*     4.2    10.4    -      -       +      +
   1217A  TRP*     3.2    59.8    +      -       +      +
   1257A  MET*     3.0    19.9    -      -       +      +
   1260A  MET*     3.7    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1002A  ILE*     3.5    32.7    -      -       +      +
   1003A  ILE*     3.7    28.9    -      -       +      -
   1130A  ARG*     2.7    20.9    +      -       +      +
   1131A  LEU      3.9     0.7    -      -       -      +
   1132A  ARG      3.2     0.8    -      -       -      -
   1133A  THR*     1.3    73.1    -      -       -      +
   1135A  GLY*     1.3    60.6    +      -       -      +
   1136A  ALA      3.3     2.3    +      -       -      -
   1257A  MET*     3.6    40.8    -      -       +      +
   1260A  MET*     4.0    11.9    -      -       +      -
   1261A  ARG*     3.5    46.6    +      -       +      +
----------------------------------------------------------
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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