Contacts of the helix formed by residues 205 - 215 (chain A) in PDB entry 4BOS


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 205 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  GLU*     4.1    22.0    -      -       -      +
    202A  LEU*     4.5     0.4    -      -       -      -
    204A  LYS*     1.3    76.7    -      -       -      +
    206A  ASN*     1.3    65.7    +      -       -      +
    207A  GLN*     3.6     8.6    +      -       -      +
    208A  GLU*     2.8    51.1    +      -       -      +
    209A  TYR*     2.9    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  VAL*     2.9    29.4    +      -       -      +
    191A  ALA*     3.2    24.5    -      -       -      +
    194A  PRO*     3.5    23.4    -      -       +      +
    197A  TYR*     3.3    23.8    +      -       -      +
    199A  GLU      5.6     1.6    -      -       -      +
    202A  LEU*     3.8    10.2    -      -       -      +
    204A  LYS      3.8     1.0    +      -       -      -
    205A  THR*     1.3    73.1    -      -       -      +
    207A  GLN*     1.3    63.9    +      -       -      +
    209A  TYR*     3.3     2.8    +      -       -      +
    210A  CYS*     3.0    27.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  THR*     3.2     8.3    +      -       -      +
    206A  ASN*     1.3    81.0    +      -       -      +
    208A  GLU*     1.3    63.9    +      -       +      +
    210A  CYS*     3.3     9.9    +      -       -      +
    211A  ASP*     3.0    61.1    +      -       -      +
    214A  LYS*     5.7     1.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  LYS*     3.5    12.5    -      -       +      +
    205A  THR*     2.8    52.5    +      -       -      +
    207A  GLN*     1.3    78.7    -      -       +      +
    209A  TYR*     1.3    58.3    +      -       -      +
    211A  ASP*     3.2     8.5    +      -       -      +
    212A  TRP*     2.9    29.1    +      -       -      +
    219B  TRP*     3.7    37.8    -      -       +      -
    266B  ILE*     6.1     0.2    -      -       -      -
   1311B  NO3      4.9     8.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186A  ILE*     4.8     0.2    -      -       +      -
    190A  VAL*     4.2    22.0    -      -       +      -
    202A  LEU*     3.8    50.0    -      -       +      -
    204A  LYS*     3.6    16.2    -      -       +      +
    205A  THR      2.9    12.8    +      -       -      +
    206A  ASN      3.6     7.4    -      -       -      +
    208A  GLU*     1.3    76.1    -      -       -      +
    210A  CYS*     1.3    58.9    +      -       -      +
    212A  TRP*     3.1    16.1    +      +       -      +
    213A  ILE*     2.8    41.4    +      -       +      +
    223A  ILE*     3.6    15.4    -      -       +      +
    224A  GLU*     2.4    33.0    +      -       -      -
     74C  ARG*     2.9    33.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  ALA*     3.3    39.0    -      -       +      -
    190A  VAL*     3.8    10.1    -      -       -      -
    191A  ALA*     3.7    12.6    -      -       -      -
    206A  ASN*     3.0    34.1    +      -       -      +
    207A  GLN*     3.7    13.2    -      -       -      +
    208A  GLU      3.3     0.2    -      -       -      -
    209A  TYR*     1.3    75.9    -      -       -      +
    211A  ASP*     1.3    65.7    +      -       -      +
    213A  ILE*     3.4     5.5    -      -       -      +
    214A  LYS*     3.2    34.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  GLN*     3.0    48.2    +      -       -      +
    208A  GLU*     3.8     4.9    -      -       -      +
    210A  CYS*     1.3    75.8    -      -       -      +
    212A  TRP*     1.3    63.4    +      -       -      +
    214A  LYS*     3.4    29.3    +      -       -      +
    215A  ARG*     3.6    14.6    +      -       -      +
    266B  ILE*     3.7    21.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  LYS*     4.8     2.2    -      -       +      -
    208A  GLU      2.9    17.1    +      -       -      +
    209A  TYR*     3.4    22.0    -      +       -      +
    211A  ASP*     1.3    78.1    -      -       -      +
    213A  ILE*     1.3    82.4    +      -       +      +
    215A  ARG*     3.1    21.3    +      -       -      +
    218A  THR*     3.0    44.0    +      -       +      +
    219A  TRP      4.0     6.7    -      -       -      -
    156B  ALA      3.5    17.9    -      -       -      -
    157B  ASP*     4.6     1.8    -      -       -      -
    158B  ASN*     3.4    27.3    +      -       -      -
    219B  TRP*     3.4    27.8    -      +       +      -
    266B  ILE*     4.0    12.5    -      -       +      +
   1310B  NO3      2.9    23.6    +      -       -      -
     74C  ARG*     3.6    47.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162A  PHE*     4.1     8.7    -      -       +      -
    183A  ARG*     2.8    55.0    +      -       +      +
    186A  ILE*     4.0    20.0    -      -       +      -
    187A  ALA*     4.2     5.4    -      -       +      -
    209A  TYR*     2.8    26.2    +      -       +      +
    210A  CYS*     3.4    15.9    -      -       -      +
    212A  TRP*     1.3    89.2    -      -       +      +
    214A  LYS*     1.3    60.4    +      -       -      +
    218A  THR*     3.7    10.8    -      -       -      +
    219A  TRP      4.7     1.3    -      -       -      +
    220A  GLY*     4.6     5.8    -      -       -      +
    224A  GLU*     3.8    37.0    -      -       +      +
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Residues in contact with LYS 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  PRO*     5.5     2.8    -      -       -      +
    183A  ARG*     3.9    12.9    -      -       -      +
    184A  ARG*     3.7    52.4    -      -       +      +
    187A  ALA*     3.5    24.8    -      -       +      +
    207A  GLN*     5.7     1.4    -      -       -      +
    210A  CYS*     3.2    24.2    +      -       -      +
    211A  ASP*     3.7    23.9    +      -       -      +
    212A  TRP      3.1     1.4    -      -       -      -
    213A  ILE*     1.3    73.7    -      -       -      +
    215A  ARG*     1.3    67.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183A  ARG*     2.9    30.7    +      -       -      -
    211A  ASP      3.6     9.4    +      -       -      +
    212A  TRP*     3.1    19.8    +      -       -      +
    214A  LYS*     1.3    79.6    -      -       -      +
    216A  ASP*     1.3    60.0    +      -       -      +
    217A  ASP*     2.8    44.7    +      -       -      +
    218A  THR*     3.7     9.5    +      -       +      +
    156B  ALA*     4.6     1.8    -      -       -      +
    264B  ASP*     2.8    33.9    +      -       -      -
    266B  ILE*     4.1    28.0    -      -       +      +
    267B  HIS*     3.4    28.7    -      -       -      +
   1310B  NO3      5.9     0.2    -      -       -      -
----------------------------------------------------------
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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