Contacts of the helix formed by residues 2226 - 2242 (chain F) 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 PHE2226 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2171F  MET*     3.7    38.1    -      -       +      -
   2172F  GLY*     4.5    14.6    -      -       -      -
   2173F  PRO*     5.2     4.7    -      -       +      -
   2176F  GLU*     5.0     9.0    -      -       +      -
   2215F  VAL*     3.7    24.6    -      -       +      +
   2225F  ARG*     1.3    82.7    -      -       +      +
   2227F  PRO*     1.3    74.5    -      -       -      +
   2228F  LYS      3.4     2.2    -      -       -      -
   2229F  MET*     3.4    26.1    +      -       +      +
   2230F  VAL*     3.2    18.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO2227 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2225F  ARG*     3.6     3.8    -      -       -      +
   2226F  PHE*     1.3    86.3    -      -       -      +
   2228F  LYS*     1.3    66.6    +      -       +      +
   2230F  VAL*     3.1    11.9    -      -       +      +
   2231F  THR*     2.9    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS2228 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2180F  ILE*     3.6    24.0    -      -       +      +
   2226F  PHE      3.4     0.4    -      -       -      -
   2227F  PRO*     1.3    79.7    -      -       +      +
   2229F  MET*     1.3    58.4    +      -       -      +
   2231F  THR*     2.7    21.6    +      -       -      -
   2232F  SER*     2.8    19.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET2229 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2171F  MET*     4.8    11.9    -      -       +      -
   2175F  GLU      6.2     0.4    -      -       -      -
   2176F  GLU*     4.5    22.9    -      -       +      -
   2179F  MET*     3.6    33.2    -      -       +      -
   2180F  ILE*     4.4     6.8    -      -       +      +
   2211F  VAL*     3.7    26.7    -      -       +      -
   2215F  VAL*     4.3    26.7    -      -       +      -
   2226F  PHE*     3.4    29.4    +      -       +      +
   2227F  PRO      3.2     0.2    -      -       -      -
   2228F  LYS*     1.3    77.7    -      -       -      +
   2230F  VAL*     1.3    58.3    +      -       -      +
   2232F  SER*     2.5    21.0    +      -       -      +
   2233F  CYS*     3.0    20.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL2230 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2212F  MET*     5.6     1.8    -      -       +      -
   2215F  VAL*     5.7     3.4    -      -       +      -
   2216F  LEU*     4.4    23.3    -      -       +      -
   2225F  ARG      5.0     4.0    -      -       -      +
   2226F  PHE      3.2    11.7    +      -       -      +
   2227F  PRO*     3.1    21.5    -      -       +      +
   2229F  MET*     1.3    76.8    -      -       -      +
   2231F  THR*     1.3    70.1    +      -       +      +
   2233F  CYS*     3.1    11.1    -      -       -      -
   2234F  CYS*     2.9    45.8    +      -       -      -
   2271F  SER      5.1     6.7    -      -       -      +
   2273F  PRO*     5.3     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR2231 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2227F  PRO*     2.9    22.0    +      -       +      +
   2228F  LYS*     2.7    26.0    +      -       -      -
   2230F  VAL*     1.3    82.2    -      -       +      +
   2232F  SER*     1.3    54.5    +      -       -      +
   2234F  CYS      3.5     0.2    +      -       -      -
   2235F  ARG*     2.9    41.5    +      -       -      +
   2271F  SER*     3.7    31.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER2232 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2179F  MET*     5.8     1.7    -      -       -      +
   2180F  ILE*     4.0    20.6    -      -       -      +
   2183F  ILE*     3.8    24.8    -      -       -      +
   2228F  LYS      2.8    15.1    +      -       -      -
   2229F  MET*     2.5    27.4    +      -       -      +
   2231F  THR*     1.3    76.6    +      -       -      +
   2233F  CYS*     1.3    55.7    +      -       -      +
   2235F  ARG*     3.3    15.8    +      -       -      +
   2236F  PHE*     2.9    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS2233 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2179F  MET*     5.9     4.5    -      -       +      -
   2183F  ILE*     5.2     5.4    -      -       +      +
   2208F  VAL*     3.9    22.7    -      -       +      +
   2211F  VAL*     5.5     7.4    -      -       +      -
   2212F  MET*     4.8    20.4    -      -       -      -
   2215F  VAL*     5.6     3.6    -      -       -      -
   2229F  MET*     3.0    21.6    +      -       +      +
   2230F  VAL*     3.1    34.5    -      -       -      -
   2232F  SER*     1.3    76.9    +      -       -      +
   2234F  CYS*     1.3    61.3    +      -       -      +
   2236F  PHE*     3.3     7.1    +      -       -      +
   2237F  LEU*     2.9    34.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS2234 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2212F  MET*     4.9     9.4    -      -       -      -
   2230F  VAL*     2.9    42.6    +      -       -      +
   2233F  CYS*     1.3    78.2    -      -       -      +
   2235F  ARG*     1.3    58.8    +      -       -      +
   2237F  LEU*     3.6     8.5    -      -       -      +
   2238F  CYS*     2.9    34.0    +      -       -      +
   2271F  SER*     3.7    23.3    -      -       -      -
   2272F  THR      4.4     2.7    -      -       -      +
   2273F  PRO*     4.0    26.5    -      -       -      -
   2276F  VAL*     3.9    10.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG2235 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2183F  ILE*     5.8     2.0    -      -       -      +
   2187F  MET*     4.1    30.4    -      -       -      +
   2231F  THR*     2.9    26.8    +      -       -      +
   2232F  SER*     3.6    11.4    +      -       -      +
   2234F  CYS*     1.3    76.9    -      -       -      +
   2236F  PHE*     1.3    57.3    +      -       -      +
   2238F  CYS*     3.3     5.9    +      -       -      +
   2239F  TYR*     2.9    52.1    +      -       +      -
   2271F  SER*     4.5    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE2236 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2183F  ILE*     3.8    16.2    -      -       +      -
   2186F  ILE*     3.5    36.6    -      -       +      -
   2187F  MET*     4.0    23.6    -      -       +      -
   2192F  PHE*     4.3    21.8    -      +       -      -
   2204F  MET*     4.4    29.6    -      -       +      -
   2205F  HIS*     5.4     1.6    -      -       -      -
   2208F  VAL*     3.5    37.9    -      -       +      -
   2232F  SER      2.9    17.1    +      -       -      +
   2233F  CYS*     3.7     5.2    -      -       -      +
   2235F  ARG*     1.3    74.8    -      -       -      +
   2237F  LEU*     1.3    62.2    +      -       +      +
   2239F  TYR*     3.3     7.1    +      -       +      +
   2240F  PHE*     2.9    35.8    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU2237 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2205F  HIS*     5.2    11.7    -      -       +      +
   2208F  VAL*     4.4    25.8    -      -       +      +
   2209F  MET*     5.3     4.3    -      -       +      +
   2212F  MET*     4.4    27.4    -      -       +      -
   2233F  CYS      2.9    20.7    +      -       -      +
   2234F  CYS*     3.6     8.3    -      -       +      +
   2236F  PHE*     1.3    81.3    -      -       +      +
   2238F  CYS*     1.3    58.3    +      -       -      +
   2240F  PHE*     2.9    10.1    +      -       +      +
   2241F  CYS*     2.9    35.7    +      -       -      -
   2251F  MET*     3.7    33.0    -      -       +      -
   2258F  LEU*     5.3     2.0    -      -       +      -
   2276F  VAL*     4.0    21.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS2238 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2234F  CYS*     2.9    21.6    +      -       -      +
   2235F  ARG*     3.7     7.6    -      -       -      +
   2237F  LEU*     1.3    75.9    -      -       -      +
   2239F  TYR*     1.3    64.1    +      -       +      +
   2240F  PHE      3.4     0.3    +      -       -      -
   2241F  CYS*     3.6    12.6    +      -       -      +
   2242F  ARG*     3.6    26.2    +      -       -      +
   2275F  ASP*     4.4    13.5    -      -       -      -
   2276F  VAL*     3.7    30.1    -      -       -      -
   2279F  ALA*     4.9     9.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR2239 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2187F  MET*     3.7    35.6    -      -       +      +
   2192F  PHE*     5.2     6.5    -      -       +      -
   2193F  TYR*     3.9    23.1    -      +       -      -
   2235F  ARG*     2.9    45.6    +      -       +      +
   2236F  PHE*     3.7     8.7    -      -       +      +
   2237F  LEU      3.2     0.2    -      -       -      -
   2238F  CYS*     1.3    79.4    -      -       +      +
   2240F  PHE*     1.3    60.1    +      -       -      +
   2242F  ARG*     3.8    31.3    +      -       -      +
   2243F  ILE*     3.3    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE2240 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2192F  PHE*     3.5    33.6    -      +       +      -
   2199F  MET*     4.2    15.0    -      -       +      -
   2200F  ARG*     4.9     1.8    -      -       +      -
   2204F  MET*     4.3     8.1    -      -       +      -
   2205F  HIS*     3.7    42.8    -      +       +      -
   2236F  PHE*     2.9    29.1    +      +       +      +
   2237F  LEU*     2.9    11.2    +      -       +      +
   2239F  TYR*     1.3    76.8    -      -       -      +
   2241F  CYS*     1.3    66.8    +      -       -      +
   2243F  ILE*     3.3    16.2    +      -       -      +
   2247F  ASN*     3.3    57.5    +      -       +      +
   2250F  SER*     5.6     2.0    -      -       -      -
   2251F  MET*     5.3    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS2241 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2237F  LEU*     2.9    31.1    +      -       -      +
   2238F  CYS*     3.6     6.0    +      -       -      +
   2239F  TYR      3.5     0.4    -      -       -      -
   2240F  PHE*     1.3    80.7    -      -       -      +
   2242F  ARG*     1.3    58.7    +      -       +      +
   2243F  ILE      3.2     4.3    +      -       -      -
   2244F  SER      3.8    13.5    -      -       -      +
   2247F  ASN*     4.9     6.7    -      -       -      -
   2248F  GLN*     4.0    29.4    +      -       -      +
   2251F  MET*     3.7    30.3    -      -       +      -
   2276F  VAL*     4.1    19.5    -      -       -      -
   2279F  ALA*     4.9    13.0    -      -       +      +
   2280F  SER*     5.2     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG2242 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2238F  CYS*     3.6    20.3    +      -       -      +
   2239F  TYR*     3.8    38.6    +      -       -      +
   2240F  PHE      3.3     0.8    -      -       -      -
   2241F  CYS*     1.3    78.7    -      -       +      +
   2243F  ILE*     1.3    66.5    +      -       -      +
   2244F  SER      3.8     0.2    -      -       -      -
   2279F  ALA*     5.3    12.3    -      -       +      +
----------------------------------------------------------
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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