Contacts of the helix formed by residues 197 - 213 (chain D) in PDB entry 3E2A


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 SER 197 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168D  TRP*     3.4    29.4    -      -       -      -
    195D  ALA*     3.9     0.3    -      -       -      +
    196D  THR*     1.3    80.2    -      -       -      +
    198D  ARG*     1.3    63.8    +      -       -      +
    199D  GLU*     3.0    18.8    +      -       -      +
    200D  THR*     2.9    35.2    +      -       -      +
    201D  LEU      3.0     8.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 198 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156D  TYR*     3.8     5.9    +      -       -      -
    159D  GLY      3.7    19.3    -      -       -      -
    160D  ARG*     4.0     8.9    -      -       -      +
    165D  LYS*     3.4    38.7    -      -       +      +
    168D  TRP*     3.3    14.8    -      -       +      +
    197D  SER*     1.3    75.1    -      -       -      +
    199D  GLU*     1.3    71.5    +      -       -      +
    201D  LEU*     3.4    17.1    -      -       -      +
    202D  GLU*     3.1    50.9    +      -       +      +
    231D  SO4      2.9    42.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 199 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197D  SER*     3.0    24.0    +      -       -      +
    198D  ARG*     1.3    80.7    +      -       -      +
    200D  THR*     1.3    65.2    +      -       +      +
    202D  GLU*     3.2     8.4    +      -       -      +
    203D  ILE*     3.1    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 200 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194D  MET*     4.4     4.0    -      -       -      -
    195D  ALA*     4.4     3.6    -      -       -      -
    196D  THR*     2.9    39.0    +      -       -      +
    197D  SER*     2.9    21.6    +      -       -      +
    199D  GLU*     1.3    74.7    -      -       +      +
    201D  LEU*     1.3    57.2    +      -       -      +
    203D  ILE*     4.2     6.0    -      -       -      +
    204D  SER*     2.7    36.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 201 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155D  VAL*     3.8    22.9    -      -       +      +
    156D  TYR*     3.8    29.2    -      -       +      +
    159D  GLY*     3.4    38.4    -      -       -      +
    160D  ARG*     3.9     1.3    -      -       +      +
    168D  TRP*     4.4     1.1    -      -       +      -
    176D  LEU*     4.5     0.2    -      -       +      -
    193D  VAL*     4.3    10.9    -      -       +      +
    195D  ALA*     3.6    26.2    -      -       +      +
    197D  SER      3.0    10.6    +      -       -      +
    198D  ARG*     3.4    27.4    -      -       -      +
    199D  GLU      3.2     0.2    -      -       -      -
    200D  THR*     1.3    74.9    +      -       -      +
    202D  GLU*     1.3    65.8    +      -       -      +
    204D  SER*     4.0     1.7    +      -       -      -
    205D  TYR*     3.0    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 202 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156D  TYR*     2.4    41.4    +      -       -      -
    198D  ARG*     3.1    29.4    +      -       +      +
    199D  GLU*     3.2    10.5    +      -       -      +
    201D  LEU*     1.3    79.3    -      -       -      +
    203D  ILE*     1.3    63.3    +      -       +      +
    205D  TYR*     3.9     2.0    -      -       -      +
    206D  ARG*     2.9    80.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 203 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  GLU*     3.1    15.9    +      -       +      +
    200D  THR*     4.2     5.4    -      -       -      +
    201D  LEU      3.3     0.2    -      -       -      -
    202D  GLU*     1.3    77.7    -      -       +      +
    204D  SER*     1.3    58.8    +      -       -      +
    206D  ARG*     3.3    24.6    +      -       +      +
    207D  ASN*     2.8    58.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 204 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192D  GLY      3.6    19.9    -      -       -      +
    193D  VAL*     3.9     4.5    -      -       -      +
    194D  MET*     2.8    27.9    +      -       -      -
    200D  THR      2.7    24.7    +      -       -      -
    201D  LEU*     4.0     1.2    +      -       -      -
    203D  ILE*     1.3    76.4    -      -       -      +
    205D  TYR*     1.3    61.7    +      -       -      +
    207D  ASN*     3.7     9.0    -      -       -      +
    208D  ALA*     2.8    32.1    +      -       -      +
    211D  ARG*     4.7     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 205 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  PHE*     6.2     3.8    -      +       -      -
    129D  LYS*     3.0    22.8    +      -       -      -
    130D  HIS*     4.2     1.2    +      -       -      -
    152D  ALA      3.9    13.0    -      -       -      -
    153D  GLU*     2.5    39.1    +      -       -      -
    156D  TYR*     3.6    52.5    -      +       +      -
    193D  VAL*     3.9    16.0    -      -       +      +
    201D  LEU      3.0    19.8    +      -       -      +
    202D  GLU*     3.9     2.5    -      -       -      +
    204D  SER*     1.3    74.6    +      -       -      +
    206D  ARG*     1.3    77.5    +      -       +      +
    208D  ALA*     3.1     1.6    +      -       -      +
    209D  ILE*     3.0    50.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 206 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202D  GLU*     2.9    51.7    +      -       -      +
    203D  ILE*     3.8    23.5    -      -       -      +
    205D  TYR*     1.3    89.1    -      -       +      +
    207D  ASN*     1.3    64.7    +      -       -      +
    209D  ILE*     4.2     3.9    -      -       -      +
    210D  ALA*     3.2    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 207 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203D  ILE*     2.8    49.0    +      -       -      +
    204D  SER*     3.7     8.5    -      -       -      +
    206D  ARG*     1.3    76.6    -      -       -      +
    208D  ALA*     1.3    56.8    +      -       -      +
    210D  ALA*     3.5     6.0    +      -       -      +
    211D  ARG*     3.0    46.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 208 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152D  ALA*     5.0     3.8    -      -       +      -
    191D  GLN      3.5    18.8    -      -       -      +
    193D  VAL*     3.5    27.6    -      -       +      +
    204D  SER      2.8    22.8    +      -       -      +
    205D  TYR      3.1     0.9    +      -       -      +
    207D  ASN*     1.3    70.6    -      -       -      +
    209D  ILE*     1.3    62.1    +      -       -      +
    211D  ARG*     3.3    16.0    +      -       -      +
    212D  LEU*     2.8    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 209 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  HIS*     3.7    34.8    -      -       +      +
    149D  ILE*     4.7    13.0    -      -       +      -
    152D  ALA*     4.1    20.0    -      -       +      -
    153D  GLU*     4.3     1.3    -      -       -      +
    205D  TYR*     3.0    47.9    +      -       +      +
    206D  ARG*     4.2     4.7    -      -       -      +
    208D  ALA*     1.3    73.3    -      -       -      +
    210D  ALA*     1.3    61.4    +      -       -      +
    212D  LEU*     3.2     6.7    +      -       +      +
    213D  SER*     2.8    44.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 210 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206D  ARG      3.2    17.9    +      -       -      +
    207D  ASN*     3.6     6.5    -      -       -      +
    209D  ILE*     1.3    80.5    -      -       -      +
    211D  ARG*     1.3    64.5    +      -       -      +
    213D  SER*     3.2    13.6    +      -       -      -
    214D  ILE*     3.6    14.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 211 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191D  GLN      5.0     5.7    +      -       -      -
    192D  GLY*     4.2    18.5    +      -       -      -
    204D  SER*     5.9     0.2    -      -       -      -
    207D  ASN*     3.0    26.3    +      -       -      +
    208D  ALA*     3.4    31.8    -      -       -      +
    209D  ILE      3.2     0.2    -      -       -      -
    210D  ALA*     1.3    76.1    -      -       -      +
    212D  LEU*     1.3    70.2    +      -       +      +
    213D  SER      3.2     1.2    +      -       -      -
    214D  ILE*     3.3    32.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 212 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  LEU*     3.9     7.5    -      -       +      +
    145D  MET*     3.8    31.0    -      -       +      +
    148D  LYS*     3.8    42.2    -      -       +      +
    149D  ILE*     3.9    26.7    -      -       +      +
    152D  ALA*     5.7     2.0    -      -       +      -
    191D  GLN*     4.3    24.9    -      -       +      +
    208D  ALA*     2.8    25.4    +      -       +      +
    209D  ILE*     3.6     9.2    -      -       +      +
    211D  ARG*     1.3    80.7    -      -       +      +
    213D  SER*     1.3    58.6    +      -       -      +
    214D  ILE      3.3     6.9    +      -       -      +
    215D  LEU*     5.7     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 213 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  HIS*     5.2     0.9    +      -       -      -
    133D  LEU*     3.7    35.9    -      -       -      +
    209D  ILE*     2.8    35.6    +      -       -      +
    210D  ALA*     3.8     9.4    -      -       -      -
    211D  ARG      3.2     1.2    -      -       -      -
    212D  LEU*     1.3    72.5    -      -       -      +
    214D  ILE*     1.3    60.7    +      -       -      +
    215D  LEU*     3.5     3.8    +      -       -      +
----------------------------------------------------------
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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