Contacts of the helix formed by residues 2172 - 2188 (chain B) in PDB entry 6X34


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 GLY2172 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2170B  GLN      3.6     0.6    +      -       -      -
   2171B  MET*     1.3    75.7    -      -       -      +
   2173B  PRO*     1.3    66.9    -      -       -      +
   2174B  GLN      3.5     1.8    -      -       -      -
   2175B  GLU*     3.3    13.4    -      -       -      +
   2176B  GLU*     2.5    38.3    +      -       -      +
   2226B  PHE*     4.5     8.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO2173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2172B  GLY*     1.3    84.1    -      -       -      +
   2174B  GLN*     1.3    59.1    +      -       -      +
   2176B  GLU*     3.6     6.4    -      -       +      +
   2177B  ASN*     2.9    28.1    +      -       -      +
   2226B  PHE*     5.2     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN2174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1680B  ARG*     5.4    13.1    +      -       -      +
   1794B  GLU      4.1    23.9    +      -       -      +
   1795B  ALA      3.7    19.6    +      -       -      +
   1796B  PRO*     4.2    11.1    -      -       -      +
   1797B  ALA*     4.3    10.2    -      -       -      +
   2166B  LEU*     5.2     2.6    -      -       -      +
   2173B  PRO*     1.3    80.2    -      -       -      +
   2175B  GLU*     1.3    62.5    +      -       -      +
   2177B  ASN*     3.3     8.7    +      -       +      +
   2178B  LEU*     2.9    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2166B  LEU*     4.0    29.7    -      -       +      +
   2169B  VAL*     5.9     1.8    -      -       +      -
   2170B  GLN      4.4     5.4    -      -       -      +
   2171B  MET*     4.2     7.4    -      -       -      -
   2172B  GLY*     3.3    25.4    +      -       -      +
   2173B  PRO      3.2     0.6    -      -       -      -
   2174B  GLN*     1.3    85.3    +      -       -      +
   2176B  GLU*     1.3    57.4    +      -       -      +
   2178B  LEU*     3.4     2.9    +      -       -      +
   2179B  MET*     2.9    29.5    +      -       -      +
   2229B  MET*     6.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU2176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2171B  MET*     5.6     0.6    -      -       -      +
   2172B  GLY      2.5    23.1    +      -       -      +
   2173B  PRO*     3.6     5.8    -      -       +      +
   2175B  GLU*     1.3    72.1    -      -       -      +
   2177B  ASN*     1.3    59.1    +      -       -      +
   2179B  MET*     3.3     7.6    +      -       -      +
   2180B  ILE*     2.9    39.2    +      -       +      +
   2226B  PHE*     5.0    15.0    -      -       +      -
   2229B  MET*     4.5    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN2177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1794B  GLU*     4.3    26.3    +      -       -      +
   2173B  PRO      2.9    15.8    +      -       -      +
   2174B  GLN*     3.6     9.9    -      -       -      +
   2175B  GLU      3.3     0.2    -      -       -      -
   2176B  GLU*     1.3    76.8    -      -       -      +
   2178B  LEU*     1.3    58.4    +      -       -      +
   2180B  ILE*     3.2     9.2    +      -       -      +
   2181B  GLN*     2.9    50.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1796B  PRO*     6.2     6.1    -      -       +      -
   1797B  ALA      6.3     0.2    -      -       -      +
   2162B  GLN*     3.4    37.5    -      -       +      +
   2166B  LEU*     3.7    33.2    -      -       +      -
   2174B  GLN*     2.9    33.3    +      -       -      +
   2175B  GLU*     3.8     4.9    -      -       -      +
   2177B  ASN*     1.3    76.5    -      -       -      +
   2179B  MET*     1.3    58.8    +      -       -      +
   2181B  GLN*     3.3    10.7    +      -       +      +
   2182B  SER*     2.9    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET2179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2163B  ILE*     3.7    40.4    -      -       +      +
   2166B  LEU*     5.6     9.1    -      -       +      +
   2167B  LEU*     6.1     1.3    -      -       -      -
   2175B  GLU      2.9    17.2    +      -       -      +
   2176B  GLU      3.6     5.6    -      -       -      +
   2178B  LEU*     1.3    77.7    -      -       -      +
   2180B  ILE*     1.3    57.8    +      -       +      +
   2182B  SER*     3.3     3.8    +      -       -      -
   2183B  ILE*     2.9    57.3    +      -       +      +
   2208B  VAL*     5.7     7.4    -      -       +      -
   2211B  VAL*     3.8    32.1    -      -       +      -
   2229B  MET*     3.6    28.0    -      -       +      -
   2232B  SER*     5.8     2.0    -      -       -      +
   2233B  CYS*     5.9     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE2180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2176B  GLU*     2.9    27.6    +      -       +      +
   2177B  ASN*     3.6     8.7    -      -       -      +
   2179B  MET*     1.3    76.2    -      -       +      +
   2181B  GLN*     1.3    71.7    +      -       -      +
   2183B  ILE*     3.3     7.0    +      -       -      +
   2184B  GLY*     2.9    26.3    +      -       -      -
   2228B  LYS*     3.6    34.1    -      -       +      +
   2229B  MET*     4.4     4.7    -      -       -      +
   2232B  SER*     4.0    23.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2177B  ASN*     2.9    42.2    +      -       -      +
   2178B  LEU*     3.7    12.8    -      -       +      +
   2180B  ILE*     1.3    88.9    -      -       -      +
   2182B  SER*     1.3    58.1    +      -       -      +
   2184B  GLY*     3.3     2.2    +      -       -      -
   2185B  ASN*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER2182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2159B  CYS*     4.9     7.4    -      -       -      -
   2162B  GLN*     5.7     5.2    -      -       -      -
   2163B  ILE*     3.6    31.2    -      -       -      -
   2178B  LEU*     2.9    21.7    +      -       -      +
   2179B  MET*     3.6     6.5    -      -       -      -
   2180B  ILE      3.2     0.2    -      -       -      -
   2181B  GLN*     1.3    77.4    -      -       -      +
   2183B  ILE*     1.3    58.1    +      -       -      +
   2185B  ASN*     3.1     6.0    +      -       -      +
   2186B  ILE*     2.9    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE2183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2163B  ILE*     5.0     5.6    -      -       +      -
   2179B  MET*     2.9    52.1    +      -       +      +
   2180B  ILE*     3.8     6.1    -      -       -      +
   2182B  SER*     1.3    75.1    -      -       -      +
   2184B  GLY*     1.3    61.3    +      -       -      +
   2186B  ILE*     3.2    33.7    -      -       +      +
   2187B  MET*     3.3    18.4    -      -       -      +
   2208B  VAL*     5.3     8.5    -      -       +      -
   2232B  SER*     3.8    36.3    -      -       -      +
   2233B  CYS*     5.5     3.4    -      -       +      +
   2235B  ARG*     5.8     1.8    -      -       -      +
   2236B  PHE*     3.8    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY2184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2180B  ILE      2.9    15.7    +      -       -      -
   2181B  GLN*     3.7     3.6    -      -       -      -
   2183B  ILE*     1.3    79.9    -      -       -      +
   2185B  ASN*     1.3    57.6    +      -       -      +
   2187B  MET*     3.7    12.5    +      -       -      +
   2188B  ASN*     2.9    25.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN2185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2155B  SER*     5.3     5.2    +      -       -      +
   2156B  LEU*     5.9     0.3    -      -       -      +
   2159B  CYS*     4.3    20.6    -      -       +      +
   2181B  GLN      2.9    17.0    +      -       -      +
   2182B  SER*     3.1     8.0    +      -       -      +
   2184B  GLY*     1.3    73.9    -      -       -      +
   2186B  ILE*     1.3    65.3    +      -       +      +
   2187B  MET      3.1     3.1    +      -       -      -
   2188B  ASN*     3.4    16.2    +      -       -      +
   2189B  ASN*     4.0     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE2186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2156B  LEU*     4.3    15.5    -      -       +      +
   2159B  CYS*     3.5    30.1    -      -       +      -
   2160B  LEU*     5.8     0.7    -      -       +      -
   2163B  ILE*     4.0    16.6    -      -       +      -
   2182B  SER      2.9    14.8    +      -       -      +
   2183B  ILE*     3.2    44.4    -      -       +      +
   2185B  ASN*     1.3    76.8    -      -       -      +
   2187B  MET*     1.3    60.6    +      -       -      +
   2188B  ASN      3.4     0.4    -      -       -      -
   2189B  ASN*     3.8    14.9    -      -       -      +
   2192B  PHE*     4.4    14.4    -      -       +      +
   2208B  VAL*     6.0     0.4    -      -       +      -
   2236B  PHE*     3.5    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET2187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2183B  ILE*     3.3    28.4    +      -       -      +
   2184B  GLY*     4.0     9.2    -      -       -      +
   2185B  ASN      3.1     1.0    -      -       -      -
   2186B  ILE*     1.3    75.8    -      -       -      +
   2188B  ASN*     1.3    60.3    +      -       -      +
   2189B  ASN      3.2    13.6    +      -       -      +
   2192B  PHE*     5.1     6.7    -      -       +      -
   2193B  TYR*     4.0    22.2    +      -       -      +
   2235B  ARG*     4.1    24.2    -      -       -      +
   2236B  PHE*     4.0    29.2    -      -       +      -
   2239B  TYR*     3.7    49.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN2188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2184B  GLY      2.9    19.3    -      -       -      +
   2185B  ASN*     3.4    11.1    +      -       -      +
   2187B  MET*     1.3    79.9    +      -       -      +
   2189B  ASN*     1.3    61.9    +      -       -      +
   2190B  LYS*     3.7     1.4    +      -       -      +
----------------------------------------------------------
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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