Contacts of the helix formed by residues 2226 - 2242 (chain H) 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 H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2171H  MET*     3.7    37.7    -      -       +      -
   2172H  GLY*     4.5    15.3    -      -       -      -
   2173H  PRO*     5.2     5.4    -      -       +      -
   2176H  GLU*     5.0     9.4    -      -       +      -
   2215H  VAL*     3.7    25.6    -      -       +      +
   2225H  ARG*     1.3    85.2    -      -       +      +
   2227H  PRO*     1.3    75.1    -      -       -      +
   2228H  LYS      3.4     2.2    -      -       -      +
   2229H  MET*     3.4    23.3    +      -       +      +
   2230H  VAL*     3.2    18.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO2227 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2225H  ARG*     3.6     4.5    -      -       -      +
   2226H  PHE*     1.3    85.6    -      -       -      +
   2228H  LYS*     1.3    67.6    +      -       +      +
   2230H  VAL*     3.1    12.5    -      -       +      +
   2231H  THR*     2.9    30.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS2228 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2180H  ILE*     3.6    22.7    -      -       +      +
   2226H  PHE      3.4     0.8    -      -       -      -
   2227H  PRO*     1.3    81.0    -      -       -      +
   2229H  MET*     1.3    57.0    +      -       -      +
   2231H  THR*     2.7    21.6    +      -       -      -
   2232H  SER*     2.8    19.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET2229 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2171H  MET*     4.8    13.0    -      -       +      -
   2176H  GLU*     4.5    23.7    -      -       +      +
   2179H  MET*     3.6    32.5    -      -       +      -
   2180H  ILE*     4.4     6.3    -      -       +      +
   2211H  VAL*     3.7    26.5    -      -       +      -
   2215H  VAL*     4.3    25.8    -      -       +      -
   2226H  PHE*     3.4    29.0    +      -       +      +
   2227H  PRO      3.2     0.4    -      -       -      -
   2228H  LYS*     1.3    79.2    -      -       -      +
   2230H  VAL*     1.3    57.7    +      -       -      +
   2232H  SER*     2.5    21.2    +      -       -      +
   2233H  CYS*     3.0    19.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL2230 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2212H  MET*     5.6     1.3    -      -       +      -
   2215H  VAL*     5.7     3.4    -      -       +      -
   2216H  LEU*     4.4    24.9    -      -       +      -
   2225H  ARG      5.0     3.6    -      -       -      +
   2226H  PHE      3.2    12.4    +      -       -      +
   2227H  PRO*     3.1    20.6    -      -       +      +
   2229H  MET*     1.3    75.7    -      -       -      +
   2231H  THR*     1.3    70.9    +      -       +      +
   2233H  CYS*     3.1    11.5    -      -       -      -
   2234H  CYS*     2.9    46.1    +      -       -      -
   2271H  SER      5.1     5.2    -      -       -      +
   2273H  PRO*     5.3     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR2231 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2227H  PRO*     2.9    22.7    +      -       +      +
   2228H  LYS*     2.7    26.4    +      -       -      -
   2230H  VAL*     1.3    81.7    -      -       +      +
   2232H  SER*     1.3    55.7    +      -       -      +
   2235H  ARG*     2.9    40.6    +      -       -      +
   2271H  SER*     3.7    33.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER2232 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2179H  MET*     5.8     1.7    -      -       -      +
   2180H  ILE*     4.0    20.7    -      -       -      +
   2183H  ILE*     3.8    24.0    -      -       -      +
   2228H  LYS      2.8    15.5    +      -       -      -
   2229H  MET*     2.5    27.4    +      -       -      +
   2231H  THR*     1.3    76.6    +      -       -      +
   2233H  CYS*     1.3    54.8    +      -       -      +
   2235H  ARG*     3.3    14.0    +      -       -      +
   2236H  PHE*     2.9    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS2233 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2179H  MET*     5.9     3.8    -      -       +      -
   2183H  ILE*     5.2     5.8    -      -       +      +
   2208H  VAL*     3.9    23.4    -      -       +      +
   2211H  VAL*     5.5     8.5    -      -       +      -
   2212H  MET*     4.8    20.6    -      -       +      -
   2215H  VAL*     5.6     3.4    -      -       -      -
   2229H  MET*     3.0    21.8    +      -       +      +
   2230H  VAL*     3.1    34.3    -      -       -      -
   2232H  SER*     1.3    76.3    +      -       -      +
   2234H  CYS*     1.3    61.1    +      -       -      +
   2236H  PHE*     3.3     7.6    +      -       -      +
   2237H  LEU*     2.9    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS2234 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2212H  MET*     4.9     9.2    -      -       -      -
   2230H  VAL*     2.9    43.0    +      -       -      +
   2233H  CYS*     1.3    78.6    -      -       -      +
   2235H  ARG*     1.3    59.4    +      -       -      +
   2237H  LEU*     3.3     8.8    +      -       -      +
   2238H  CYS*     2.9    34.7    +      -       -      +
   2271H  SER*     3.7    23.1    -      -       -      -
   2272H  THR      4.4     2.7    -      -       -      +
   2273H  PRO*     4.0    25.8    -      -       -      -
   2276H  VAL*     3.9    10.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG2235 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2183H  ILE*     5.8     1.2    -      -       -      +
   2187H  MET*     4.1    30.5    -      -       -      +
   2231H  THR*     2.9    26.6    +      -       -      +
   2232H  SER*     3.3    12.0    +      -       -      +
   2234H  CYS*     1.3    77.4    -      -       -      +
   2236H  PHE*     1.3    57.9    +      -       -      +
   2238H  CYS*     3.3     5.9    +      -       -      +
   2239H  TYR*     2.9    51.4    +      -       +      -
   2271H  SER*     4.5    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE2236 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2183H  ILE*     3.8    15.9    -      -       +      -
   2186H  ILE*     3.5    36.8    -      -       +      -
   2187H  MET*     4.0    22.4    -      -       +      -
   2192H  PHE*     4.3    22.0    -      +       -      -
   2204H  MET*     4.4    29.6    -      -       +      -
   2205H  HIS*     5.4     1.6    -      -       -      -
   2208H  VAL*     3.5    37.2    -      -       +      -
   2232H  SER      2.9    16.5    +      -       -      +
   2233H  CYS*     3.3     5.4    +      -       -      +
   2235H  ARG*     1.3    75.6    -      -       -      +
   2237H  LEU*     1.3    62.9    +      -       +      +
   2239H  TYR*     3.3     6.6    +      -       +      +
   2240H  PHE*     2.9    35.7    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU2237 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2205H  HIS*     5.2    12.1    -      -       +      +
   2208H  VAL*     4.4    25.8    -      -       +      +
   2209H  MET*     5.3     3.6    -      -       +      +
   2212H  MET*     4.4    28.7    -      -       +      -
   2233H  CYS*     2.9    21.0    +      -       +      +
   2234H  CYS*     3.6     8.3    -      -       +      +
   2236H  PHE*     1.3    80.8    -      -       +      +
   2238H  CYS*     1.3    57.7    +      -       -      +
   2240H  PHE*     2.9     9.8    +      -       +      +
   2241H  CYS*     2.9    34.9    +      -       -      -
   2251H  MET*     3.7    33.7    -      -       +      -
   2258H  LEU*     5.3     1.6    -      -       +      -
   2273H  PRO*     6.5     0.2    -      -       +      -
   2276H  VAL*     4.0    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS2238 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2234H  CYS*     2.9    21.6    +      -       -      +
   2235H  ARG*     3.7     7.2    -      -       -      +
   2237H  LEU*     1.3    76.9    -      -       -      +
   2239H  TYR*     1.3    64.9    +      -       +      +
   2240H  PHE      3.4     0.3    +      -       -      -
   2241H  CYS*     3.6    12.3    +      -       -      +
   2242H  ARG*     3.6    26.1    +      -       -      +
   2275H  ASP*     4.4    13.0    -      -       -      -
   2276H  VAL*     3.7    29.8    -      -       -      -
   2279H  ALA*     4.9     9.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR2239 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2187H  MET*     3.7    35.6    -      -       +      +
   2192H  PHE*     5.2     5.8    -      -       +      -
   2193H  TYR*     3.9    22.7    -      +       -      -
   2235H  ARG*     2.9    43.8    +      -       +      +
   2236H  PHE*     3.7     8.7    -      -       +      +
   2238H  CYS*     1.3    79.8    -      -       +      +
   2240H  PHE*     1.3    61.6    +      -       -      +
   2242H  ARG*     3.8    32.3    +      -       -      +
   2243H  ILE*     3.3    22.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE2240 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2192H  PHE*     3.5    33.0    -      +       +      -
   2199H  MET*     4.2    15.9    -      -       +      -
   2200H  ARG*     4.9     1.8    -      -       +      -
   2204H  MET*     4.3     8.1    -      -       +      -
   2205H  HIS*     3.7    42.8    -      +       +      -
   2236H  PHE*     2.9    29.0    +      +       +      +
   2237H  LEU*     2.9    10.7    +      -       +      +
   2239H  TYR*     1.3    77.0    -      -       -      +
   2241H  CYS*     1.3    67.3    +      -       -      +
   2243H  ILE*     3.3    16.8    +      -       -      +
   2247H  ASN*     3.3    56.7    +      -       +      +
   2250H  SER*     5.6     1.6    -      -       -      -
   2251H  MET*     5.3    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS2241 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2237H  LEU*     2.9    30.5    +      -       -      +
   2238H  CYS*     3.6     6.0    +      -       -      +
   2239H  TYR      3.5     0.2    -      -       -      -
   2240H  PHE*     1.3    80.1    -      -       -      +
   2242H  ARG*     1.3    58.4    +      -       +      +
   2243H  ILE      3.2     4.1    +      -       -      -
   2244H  SER      3.8    14.0    -      -       -      +
   2247H  ASN*     4.9     6.7    -      -       -      -
   2248H  GLN*     4.0    28.1    +      -       -      +
   2251H  MET*     3.7    30.5    -      -       +      -
   2276H  VAL*     4.1    20.0    -      -       -      -
   2279H  ALA*     4.9    13.0    -      -       +      +
   2280H  SER*     5.2     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG2242 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2238H  CYS*     3.6    20.1    +      -       -      +
   2239H  TYR*     4.1    39.4    -      -       -      +
   2240H  PHE      3.3     1.4    -      -       -      -
   2241H  CYS*     1.3    78.7    -      -       +      +
   2243H  ILE*     1.3    66.6    +      -       -      +
   2279H  ALA*     5.3    11.9    -      -       +      +
----------------------------------------------------------
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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