Contacts of the helix formed by residues 203 - 216 (chain C) in PDB entry 4U8T


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 THR 203 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202C  SER*     1.3    87.3    +      -       -      +
    204C  PHE*     1.3    62.5    +      -       -      +
    206C  GLY*     3.0    19.4    +      -       -      -
    207C  ASN*     2.8    33.4    +      -       -      +
    259C  ARG*     3.1    37.0    -      -       -      +
    297C  ASP*     4.3     3.1    +      -       -      +
     -1Q    G      3.5    42.9    +      -       -      +
      0Q  6MZ      4.2    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 204 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203C  THR*     1.3    78.3    -      -       -      +
    205C  TYR*     1.3    83.3    +      +       +      +
    207C  ASN*     3.7     5.8    -      -       -      +
    208C  LYS*     3.2    28.8    +      -       +      +
    288E  ASP*     3.4    44.4    -      -       +      -
     -2P    G      3.4    75.6    -      +       -      +
     -2Q    G      5.7     0.2    -      -       -      +
     -1Q    G      6.0     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 205 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203C  THR*     3.3     1.8    +      -       -      -
    204C  PHE*     1.3    92.3    -      +       +      +
    206C  GLY*     1.3    65.5    +      -       -      +
    208C  LYS*     3.2    21.2    +      -       -      +
    209C  ARG*     3.0    26.9    +      -       -      +
     -2P    G      3.4    45.6    +      +       -      -
     -2Q    G      3.3    24.5    +      -       +      +
     -1Q    G      3.3    71.1    +      +       +      +
----------------------------------------------------------
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Residues in contact with GLY 206 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202C  SER*     3.4    23.8    -      -       -      -
    203C  THR*     3.0    13.3    +      -       -      -
    205C  TYR*     1.3    78.1    -      -       -      +
    207C  ASN*     1.3    55.0    +      -       -      +
    209C  ARG*     3.4     5.8    +      -       -      +
    210C  LEU*     3.0    33.1    +      -       -      +
    298C  THR*     3.8    17.6    -      -       -      +
     -1Q    G      4.0     1.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 207 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201C  SER*     3.5    16.2    +      -       -      -
    202C  SER*     2.9    27.7    +      -       -      -
    203C  THR      2.8    24.1    +      -       -      +
    204C  PHE*     3.7     6.1    +      -       -      +
    206C  GLY*     1.3    70.4    -      -       -      +
    208C  LYS*     1.3    58.8    +      -       -      +
    210C  LEU*     4.0     4.3    -      -       -      +
    211C  SER*     2.9    34.1    +      -       -      -
    245C  LEU*     3.7    37.8    -      -       +      +
    262C  HIS*     4.5    11.1    +      -       -      +
    264C  PHE*     3.7    13.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 208 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204C  PHE*     3.2    21.6    +      -       +      +
    205C  TYR*     3.2    30.3    +      -       +      +
    207C  ASN*     1.3    78.7    -      -       -      +
    209C  ARG*     1.3    61.9    +      -       -      +
    211C  SER*     3.7     4.8    -      -       -      -
    212C  GLU*     3.1    52.3    +      -       -      +
    245C  LEU*     5.9     0.2    -      -       -      -
    285E  PRO      5.6     0.9    -      -       -      -
    286E  ALA*     3.7    28.1    +      -       -      +
    287E  ASN*     5.8     0.2    -      -       -      -
    288E  ASP      6.1     0.7    -      -       -      +
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Residues in contact with ARG 209 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181C  PHE*     4.3    16.2    -      -       +      -
    205C  TYR*     3.0    14.7    +      -       -      +
    206C  GLY*     3.6     4.0    -      -       -      +
    208C  LYS*     1.3    75.4    -      -       -      +
    210C  LEU*     1.3    63.1    +      -       -      +
    212C  GLU*     3.5     9.6    +      -       -      +
    213C  ALA*     3.2    22.2    +      -       -      +
    298C  THR*     3.1    40.0    +      -       -      +
     -1Q    G      2.7    50.5    +      -       -      -
     -3R    A      3.5    21.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 210 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181C  PHE*     3.7    45.3    -      -       +      -
    183C  ILE*     3.9    21.5    -      -       +      -
    202C  SER*     4.5     5.6    -      -       -      -
    206C  GLY      3.0    21.0    +      -       -      +
    207C  ASN*     4.0     3.4    -      -       -      +
    209C  ARG*     1.3    73.4    -      -       -      +
    211C  SER*     1.3    65.4    +      -       -      +
    213C  ALA*     3.4     3.9    +      -       -      +
    214C  TYR*     3.0    24.8    +      -       -      +
    223C  ILE*     4.9     0.9    -      -       +      -
    225C  LEU*     4.5     0.4    -      -       +      -
    241C  MSE      3.8    30.7    -      -       +      +
    264C  PHE*     3.7    30.7    -      -       +      -
    298C  THR*     3.9    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 211 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207C  ASN      2.9    20.2    +      -       -      -
    208C  LYS      3.7     4.7    -      -       -      -
    210C  LEU*     1.3    78.2    -      -       -      +
    212C  GLU*     1.3    63.0    +      -       -      +
    214C  TYR*     3.3     4.1    +      -       -      +
    215C  GLU*     3.1    24.3    +      -       -      +
    241C  MSE      5.8     0.2    -      -       -      -
    244C  ASN*     2.8    29.1    +      -       -      -
    245C  LEU*     4.8     6.7    -      -       -      +
    264C  PHE*     6.3     0.2    -      -       -      -
    285E  PRO*     3.5    18.8    -      -       -      +
    286E  ALA*     3.5    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 212 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  LYS*     3.1    46.3    +      -       -      +
    209C  ARG*     3.9     7.6    -      -       -      +
    210C  LEU      3.3     0.2    -      -       -      -
    211C  SER*     1.3    79.3    -      -       -      +
    213C  ALA*     1.3    62.5    +      -       -      +
    215C  GLU*     3.4     5.4    +      -       -      +
    216C  SER*     3.0    28.1    +      -       -      +
    286E  ALA*     3.9    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 213 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179C  ARG*     3.4    34.8    +      -       -      +
    181C  PHE*     4.1    14.6    -      -       +      -
    209C  ARG      3.2    14.8    +      -       -      +
    210C  LEU      3.9     1.8    -      -       -      +
    212C  GLU*     1.3    78.9    -      -       -      +
    214C  TYR*     1.3    64.9    +      -       -      +
    216C  SER*     3.4     9.7    +      -       -      -
    217C  LEU*     3.4    18.0    +      -       -      +
    223C  ILE*     3.4    17.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 214 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210C  LEU      3.0    18.4    +      -       -      +
    211C  SER*     3.6     5.6    -      -       -      +
    212C  GLU      3.2     0.2    -      -       -      -
    213C  ALA*     1.3    78.7    -      -       -      +
    215C  GLU*     1.3    67.3    +      -       -      +
    217C  LEU*     3.3    26.0    +      -       +      +
    222C  LYS*     6.4     0.4    -      -       -      -
    223C  ILE*     3.3    12.7    -      -       +      +
    241C  MSE      3.6    40.8    -      -       +      -
    242C  SER*     3.6     6.6    +      -       -      -
    243C  SER*     3.4    29.2    +      -       -      -
    244C  ASN*     3.3    36.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 215 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211C  SER      3.1    13.2    +      -       -      +
    212C  GLU*     3.8     6.3    -      -       -      +
    213C  ALA      3.3     0.2    -      -       -      -
    214C  TYR*     1.3    86.5    -      -       -      +
    216C  SER*     1.3    59.9    +      -       -      +
    217C  LEU      3.2     6.4    +      -       -      +
    244C  ASN*     4.2    14.3    +      -       -      +
    302E  PRO*     3.5    28.6    -      -       +      +
    303E  ALA*     3.3    28.9    +      -       -      +
    304E  THR*     4.8     3.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 216 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179C  ARG*     4.7     9.4    -      -       -      -
    212C  GLU*     3.0    20.0    +      -       -      +
    213C  ALA*     3.9     7.4    -      -       -      -
    214C  TYR      3.3     0.6    -      -       -      -
    215C  GLU*     1.3    76.4    -      -       -      +
    217C  LEU*     1.3    65.2    +      -       -      +
    218C  PRO*     3.3     8.1    -      -       -      +
----------------------------------------------------------
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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