Contacts of the helix formed by residues 155 - 167 (chain C) in PDB entry 2GD4


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 ASN 155 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  THR      3.7     1.2    +      -       -      -
    154C  PHE*     1.3    78.4    -      -       -      +
    156C  GLU*     1.3    77.1    +      -       -      +
    157C  THR*     2.6    17.0    +      -       -      -
    158C  TYR*     3.9    14.9    -      -       +      +
    159C  GLN*     3.1    24.4    +      -       -      +
    353C  GLY      3.3    21.2    +      -       -      +
    354C  ILE*     3.1    13.5    +      -       -      +
    355C  VAL*     4.5     2.8    -      -       -      +
      1E  NAG      1.4    63.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 156 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154C  PHE      3.6     1.5    +      -       -      -
    155C  ASN*     1.3    79.1    +      -       -      +
    157C  THR*     1.3    67.5    +      -       -      +
    159C  GLN*     3.2     8.8    -      -       -      +
    160C  ASP*     2.9    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 157 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  PRO*     5.2    14.8    -      -       +      -
    155C  ASN*     2.6    16.7    +      -       -      -
    156C  GLU*     1.3    70.4    -      -       -      +
    158C  TYR*     1.3    58.9    +      -       -      +
    160C  ASP*     2.4    40.2    +      -       +      +
    161C  ILE*     2.8    27.5    +      -       +      -
      1E  NAG      3.7    32.5    -      -       -      -
      2E  NAG      5.3     4.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 158 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89C  MET*     2.7    36.0    +      -       +      +
     92C  LEU*     3.4    30.1    -      -       +      -
     93C  GLY*     4.6     3.8    -      -       -      -
    146C  LEU*     2.9    29.1    -      -       +      +
    154C  PHE*     6.0     0.4    -      -       +      -
    155C  ASN*     3.8    22.2    +      -       +      -
    157C  THR*     1.3    78.8    -      -       -      +
    159C  GLN*     1.3    68.8    +      -       +      +
    161C  ILE*     3.0    10.3    +      -       +      +
    162C  SER*     2.6    54.2    +      -       -      -
    170C  LEU*     4.9     4.3    -      -       +      -
    353C  GLY      4.1     8.3    -      -       -      +
    354C  ILE*     3.6    40.5    -      -       +      +
      1E  NAG      4.6     0.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 159 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154C  PHE*     4.6    11.9    -      -       +      +
    155C  ASN      3.1    18.8    +      -       -      +
    156C  GLU*     3.2    13.0    +      -       -      +
    157C  THR      2.8     1.6    +      -       -      -
    158C  TYR*     1.3    87.4    -      -       +      +
    160C  ASP*     1.3    64.5    +      -       -      +
    162C  SER*     4.3     1.5    -      -       -      -
    163C  GLU*     3.2    21.1    +      -       -      +
    169C  LYS*     3.1    21.4    -      -       +      +
    170C  LEU*     2.6    62.5    +      -       -      +
    172C  PRO*     5.1     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 160 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  PRO*     5.5     9.2    -      -       +      -
    156C  GLU*     2.9    25.6    +      -       -      +
    157C  THR*     2.4    30.1    +      -       +      +
    159C  GLN*     1.3    67.0    -      -       -      +
    161C  ILE*     1.3    67.9    -      -       +      +
    163C  GLU*     3.1     6.6    +      -       -      +
    164C  LEU*     3.1    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 161 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  ILE*     6.3     1.6    -      -       +      -
     16C  PRO*     4.6    22.0    -      -       +      +
     17C  MET*     6.3     0.4    -      -       -      -
     19C  PRO*     5.1     9.2    -      -       +      -
     89C  MET*     5.3     0.2    -      -       -      -
     92C  LEU*     3.7    39.9    -      -       +      -
    120C  HIS*     4.0    26.0    -      -       +      +
    157C  THR*     2.8    31.2    +      -       +      +
    158C  TYR*     3.3    10.3    -      -       +      +
    160C  ASP*     1.3    78.8    -      -       +      +
    162C  SER*     1.3    57.0    +      -       -      +
    163C  GLU      2.5    14.7    +      -       -      -
    164C  LEU*     2.9    12.1    +      -       -      -
    165C  VAL*     3.2    24.0    +      -       +      +
      1E  NAG      5.4     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 162 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89C  MET*     5.0     5.7    -      -       -      +
     92C  LEU*     5.1     0.4    -      -       -      +
    146C  LEU*     5.8     3.1    -      -       -      +
    158C  TYR*     2.6    44.8    +      -       -      -
    159C  GLN*     4.0     7.0    -      -       -      -
    161C  ILE*     1.3    75.5    -      -       -      +
    163C  GLU*     1.3    59.6    +      -       -      +
    165C  VAL*     4.8     0.4    -      -       -      -
    166C  TYR*     3.2    32.8    +      -       -      +
    167C  GLY      3.3     1.7    +      -       -      -
    168C  ALA      2.7    30.4    +      -       -      +
    169C  LYS*     3.7     9.1    +      -       -      -
    170C  LEU      4.3     0.3    +      -       -      -
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Residues in contact with GLU 163 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159C  GLN      3.2    14.6    +      -       -      +
    160C  ASP*     3.1    10.6    +      -       -      +
    161C  ILE      2.5     6.1    +      -       -      -
    162C  SER*     1.3    72.3    -      -       -      +
    164C  LEU*     1.3    76.1    +      -       +      +
    165C  VAL      3.0     0.2    -      -       -      -
    167C  GLY*     2.8    44.5    +      -       -      +
    168C  ALA*     3.6    13.2    +      -       -      -
    169C  LYS*     4.2     8.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 164 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  PRO      4.1     6.1    -      -       -      +
      5C  VAL*     3.8    40.2    -      -       +      -
      7C  ILE*     2.9    25.2    -      -       +      +
     15C  ILE*     5.5     8.7    -      -       +      -
    121C  PHE*     5.9     0.2    -      -       -      -
    160C  ASP*     3.1    21.8    -      -       +      +
    161C  ILE*     2.9     5.3    +      -       -      +
    163C  GLU*     1.3    93.1    -      -       +      +
    165C  VAL*     1.3    66.5    +      -       +      +
    167C  GLY*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 165 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  ILE*     4.8     1.9    -      -       +      +
     15C  ILE*     6.0     5.6    -      -       +      -
     85C  THR*     6.2     0.2    -      -       -      +
     89C  MET*     3.8    15.3    -      -       +      +
    120C  HIS*     3.1    45.1    -      -       +      +
    121C  PHE*     4.1    16.2    -      -       +      -
    124C  ALA*     3.3    24.1    -      -       +      +
    127C  ASN*     5.9     0.2    +      -       -      -
    161C  ILE*     3.5    29.2    -      -       +      +
    162C  SER*     4.8     0.7    -      -       -      +
    163C  GLU      2.9     2.8    +      -       -      -
    164C  LEU*     1.3    85.9    -      -       +      +
    166C  TYR*     1.3    63.6    +      -       -      +
    167C  GLY      3.3     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 166 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  THR*     4.4    17.7    -      -       +      -
     86C  ALA*     3.6    37.3    -      -       +      +
     89C  MET*     3.6    32.5    -      -       +      -
    144C  ASN*     3.3    64.8    +      -       -      +
    145C  ARG*     3.8    18.7    -      -       +      -
    146C  LEU*     4.3    12.7    -      -       +      +
    162C  SER*     3.2    22.5    +      -       -      +
    165C  VAL*     1.3    79.3    -      -       -      +
    167C  GLY*     1.3    58.4    +      -       -      +
    168C  ALA      3.6     5.8    +      -       -      -
    169C  LYS      6.0     0.2    -      -       -      -
    216C  VAL      4.0     4.5    +      -       -      -
    217C  ASN*     4.1     1.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 167 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162C  SER      3.3     0.2    +      -       -      -
    163C  GLU*     2.8    26.5    +      -       -      +
    164C  LEU      5.5     0.2    -      -       -      -
    165C  VAL      3.3     2.0    -      -       -      -
    166C  TYR*     1.3    80.4    -      -       -      +
    168C  ALA*     1.3    58.4    +      -       -      +
----------------------------------------------------------
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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