Contacts of the helix formed by residues 203 - 220 (chain A) in PDB entry 5UNH


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 LYS 203 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  PRO*     3.2     7.6    +      -       +      +
    202A  GLU*     1.4    79.1    -      -       +      +
    204A  TYR*     1.4    60.3    +      -       -      +
    205A  ALA      3.5     2.2    -      -       -      +
    206A  GLN*     3.9    31.6    -      -       +      +
    207A  TRP*     3.2    31.5    +      -       +      +
   1008A  GLU*     5.8     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ILE*     4.4    11.7    -      -       +      +
    197A  MET      3.3    16.0    +      -       -      -
    198A  ALA*     4.7     1.6    -      -       -      -
    199A  PHE*     3.4    49.9    -      +       +      -
    200A  PRO      3.2     7.8    +      -       -      +
    201A  PRO*     3.9    17.7    +      -       +      +
    203A  LYS*     1.4    72.8    -      -       -      +
    205A  ALA*     1.4    63.1    +      -       -      +
    207A  TRP*     3.5     2.8    +      -       -      +
    208A  SER*     3.1    43.2    +      -       -      -
    283A  TRP*     3.8    25.8    -      +       -      -
   1102A  ILE*     4.4    22.9    -      -       +      -
   1106A  LEU*     5.6     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  LYS      3.5     0.6    -      -       -      -
    204A  TYR*     1.4    75.3    -      -       -      +
    206A  GLN*     1.4    64.0    +      -       -      +
    208A  SER*     3.5     0.9    +      -       -      -
    209A  ALA*     3.2    24.3    +      -       -      +
    283A  TRP*     3.6    47.2    -      -       +      +
   1004A  GLU*     5.9     2.7    -      -       -      +
   1106A  LEU*     4.2    14.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  LYS*     3.7    31.0    +      -       +      +
    205A  ALA*     1.4    78.0    -      -       -      +
    207A  TRP*     1.3    63.7    +      -       +      +
    209A  ALA*     3.5     5.5    +      -       -      +
    210A  GLY*     2.9    26.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  PRO*     5.7     0.7    -      -       +      -
    181A  PHE*     3.8    29.8    -      +       -      -
    199A  PHE*     3.6    31.6    -      +       +      -
    200A  PRO*     3.7    27.2    -      -       +      +
    203A  LYS*     3.2    27.5    +      -       +      +
    204A  TYR      3.8     2.0    -      -       -      +
    205A  ALA      3.4     0.2    -      -       -      -
    206A  GLN*     1.3    84.8    +      -       -      +
    208A  SER*     1.3    58.9    +      -       -      +
    210A  GLY*     3.8     1.7    -      -       -      -
    211A  ILE*     2.9    72.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  PHE*     3.6    23.5    -      -       -      -
    204A  TYR*     3.1    30.1    +      -       -      -
    205A  ALA      3.9     0.4    -      -       -      -
    206A  GLN      3.4     0.2    -      -       -      -
    207A  TRP*     1.3    73.8    -      -       -      +
    209A  ALA*     1.4    56.3    +      -       -      +
    211A  ILE*     3.8     1.9    +      -       -      +
    212A  ALA*     3.1    29.1    +      -       -      +
    279A  ASP*     5.1     0.7    -      -       -      +
    283A  TRP*     3.6    37.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  ALA      3.2    16.7    +      -       -      +
    206A  GLN*     3.8     6.1    -      -       -      +
    208A  SER*     1.4    74.8    -      -       -      +
    210A  GLY*     1.3    62.7    +      -       -      +
    212A  ALA*     3.5     5.3    +      -       -      +
    213A  LEU*     3.2    32.5    +      -       -      +
    280A  ALA*     3.8    22.9    -      -       -      +
    283A  TRP*     4.1     6.2    -      -       +      +
    284A  MET*     3.9    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  GLN      2.9    16.8    +      -       -      -
    207A  TRP*     3.9     2.9    -      -       -      -
    209A  ALA*     1.3    76.4    -      -       -      +
    211A  ILE*     1.4    61.2    +      -       -      +
    213A  LEU*     3.5     9.7    +      -       -      +
    214A  MET*     3.3    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  PRO*     4.1    23.3    -      -       +      -
    181A  PHE*     5.5     0.2    -      -       +      -
    197A  MET*     4.4     4.9    -      -       +      -
    199A  PHE*     3.7    23.3    -      -       +      -
    207A  TRP*     2.9    51.2    +      -       +      +
    208A  SER*     4.3     1.8    -      -       -      +
    210A  GLY*     1.4    74.6    -      -       -      +
    212A  ALA*     1.4    64.5    +      -       -      +
    214A  MET*     3.2    19.0    +      -       +      +
    215A  LYS*     3.1    41.6    +      -       -      +
   1501A  8EM      4.2    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  SER      3.1    20.9    +      -       -      +
    209A  ALA      3.7     5.6    -      -       -      +
    210A  GLY      3.4     0.4    -      -       -      -
    211A  ILE*     1.4    75.5    -      -       -      +
    213A  LEU*     1.3    60.1    +      -       -      +
    215A  LYS*     3.3    23.7    +      -       -      +
    216A  ASN*     3.4    14.8    -      -       -      +
    276A  THR*     3.4    22.2    -      -       +      +
    279A  ASP*     4.5     7.9    -      -       -      +
    280A  ALA*     3.7    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  ALA      3.2    22.4    +      -       -      +
    210A  GLY*     3.7    11.7    -      -       -      +
    211A  ILE      3.3     0.2    -      -       -      -
    212A  ALA*     1.3    74.4    -      -       -      +
    214A  MET*     1.4    60.9    +      -       -      +
    216A  ASN*     3.2     9.8    +      -       -      +
    217A  ILE*     3.1    34.2    +      -       +      +
    277A  PHE*     4.6    19.1    -      -       +      -
    280A  ALA*     3.7    12.6    -      -       +      -
    284A  MET*     3.7    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  PHE*     5.2     0.5    -      -       -      -
    173A  LEU      5.4     0.2    -      -       -      +
    174A  SER*     3.4    28.9    -      -       -      +
    177A  PRO*     3.7    25.8    -      -       +      -
    210A  GLY      3.3    10.0    +      -       -      +
    211A  ILE*     3.2    24.7    +      -       +      +
    213A  LEU*     1.4    73.9    -      -       -      +
    215A  LYS*     1.3    65.6    +      -       -      +
    217A  ILE*     4.7     5.6    -      -       -      +
    218A  LEU*     3.2    50.4    +      -       +      +
   1501A  8EM      3.8    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  PHE*     5.2     1.8    -      -       -      -
    211A  ILE*     3.1    32.1    +      -       -      +
    212A  ALA*     3.3    11.2    -      -       +      +
    213A  LEU      3.2     0.2    -      -       -      -
    214A  MET*     1.3    77.7    -      -       -      +
    216A  ASN*     1.4    55.7    +      -       -      +
    219A  GLY*     3.2    18.1    +      -       -      +
    272A  PHE*     4.8     6.8    -      -       +      -
    273A  HIS*     3.1    20.3    -      -       +      -
    276A  THR*     4.2    21.2    +      -       +      +
   1501A  8EM      2.9    86.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  ALA      3.4    15.5    -      -       -      +
    213A  LEU*     3.2     9.6    +      -       -      +
    215A  LYS*     1.4    75.1    -      -       -      +
    217A  ILE*     1.3    57.7    +      -       +      +
    220A  PHE*     2.9    11.3    +      -       +      +
    221A  ILE*     2.8    42.6    +      -       +      +
    273A  HIS*     2.9    54.3    +      -       +      +
    276A  THR*     3.7     9.5    -      -       -      +
    277A  PHE*     3.9    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  LEU*     3.1    23.4    +      -       +      +
    214A  MET*     4.4     5.2    -      -       -      +
    216A  ASN*     1.3    80.2    -      -       +      +
    218A  LEU*     1.3    64.4    +      -       +      +
    221A  ILE*     3.5    26.1    +      -       +      -
    222A  ILE*     3.0    50.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  PHE*     3.9    11.4    -      -       +      -
    133A  PHE*     3.7    27.8    -      -       +      -
    174A  SER*     4.1    22.9    -      -       -      +
    214A  MET*     3.2    47.2    +      -       +      +
    217A  ILE*     1.3    81.9    -      -       +      +
    219A  GLY*     1.3    57.6    +      -       -      +
    220A  PHE      3.7     0.2    -      -       -      -
    222A  ILE*     4.9    13.5    -      -       +      +
    223A  PRO*     3.4    17.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  MET*     5.5     1.6    -      -       -      -
    129A  PHE*     3.9    13.9    -      -       -      -
    132A  ILE*     3.9    21.5    -      -       -      +
    215A  LYS      3.2    18.2    +      -       -      -
    218A  LEU*     1.3    79.5    -      -       -      +
    220A  PHE*     1.4    59.6    +      -       -      +
    223A  PRO*     3.8     6.3    -      -       -      +
    265A  PHE*     3.9    12.6    -      -       -      -
    269A  TRP*     5.3     1.0    -      -       -      -
    273A  HIS*     3.8    12.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ASN*     2.9    12.6    +      -       +      +
    219A  GLY*     1.4    77.4    -      -       -      +
    221A  ILE*     1.3    72.0    +      -       +      +
    223A  PRO*     3.5     5.4    -      -       -      +
    224A  LEU*     2.8    50.2    +      -       +      +
    265A  PHE*     3.7    25.5    -      +       -      -
    266A  ILE*     3.9    19.5    -      -       +      -
    269A  TRP*     3.7    18.6    -      -       +      -
    270A  LEU*     3.6    55.4    -      -       +      -
    273A  HIS*     3.6    29.2    -      +       +      +
----------------------------------------------------------
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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