Contacts of the helix formed by residues 345 - 354 (chain I) in PDB entry 6C6U


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 PRO 345 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225I  PHE*     3.9    11.2    -      -       +      -
    296I  VAL*     6.2     1.1    -      -       +      -
    338I  THR*     3.8    32.1    -      -       +      -
    339I  ASN      4.6     3.8    -      -       -      +
    343I  HIS      4.2     0.2    -      -       -      +
    344I  GLY*     1.3    81.7    -      -       -      +
    346I  TYR*     1.3    59.7    +      -       +      +
    347I  ILE      3.4     2.0    -      -       -      -
    348I  SER*     3.2    16.3    +      -       -      -
    349I  GLU*     2.8    44.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 346 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188I  PHE*     3.8    23.3    -      +       +      -
    192I  ASP*     3.4    48.2    +      -       +      +
    194I  LEU*     5.2     5.2    -      -       +      -
    340I  ASP      5.4     3.6    +      -       -      -
    344I  GLY*     3.1    38.1    +      -       -      -
    345I  PRO*     1.3    70.2    -      -       +      +
    347I  ILE*     1.3    60.1    +      -       +      +
    349I  GLU*     3.9     2.0    -      -       -      +
    350I  THR*     2.5    39.0    +      -       -      +
    433I  ILE*     4.5    21.1    -      -       +      -
    436I  ARG*     3.5    45.9    +      -       +      +
    437I  ASN*     4.1    11.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 347 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194I  LEU*     3.9    19.7    -      -       +      -
    207I  THR*     4.4    10.5    -      -       +      -
    220I  ILE*     4.1    25.8    -      -       +      -
    221I  LEU*     4.2     3.8    -      -       +      -
    224I  PHE*     3.8    26.7    -      -       +      +
    225I  PHE*     3.7    22.6    -      -       +      -
    345I  PRO      3.4     0.2    -      -       -      -
    346I  TYR*     1.3    74.6    -      -       -      +
    348I  SER*     1.3    57.3    +      -       -      +
    350I  THR*     3.4     3.9    +      -       -      +
    351I  LEU*     2.9    37.2    +      -       +      +
    429I  MET*     4.4    11.7    -      -       +      -
    433I  ILE*     3.8    30.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 348 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221I  LEU*     5.4     0.7    -      -       -      -
    225I  PHE*     4.3    10.2    -      -       -      -
    296I  VAL*     4.2    11.5    -      -       -      +
    314I  ASN*     2.4    37.2    +      -       -      +
    336I  LEU*     5.5     2.2    -      -       -      -
    338I  THR*     5.7     1.1    -      -       -      -
    345I  PRO*     3.2    23.9    +      -       -      -
    347I  ILE*     1.3    77.4    -      -       -      +
    349I  GLU*     1.3    61.1    +      -       -      +
    351I  LEU      3.3     1.2    +      -       -      -
    352I  ARG*     3.0    40.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 349 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191I  LYS      5.5     3.1    -      -       -      +
    192I  ASP*     4.7     7.2    -      -       +      +
    193I  ASN*     3.4    17.6    -      -       -      +
    345I  PRO*     2.8    35.4    +      -       +      +
    346I  TYR*     4.1     2.7    -      -       -      +
    348I  SER*     1.3    73.3    +      -       -      +
    350I  THR*     1.3    57.8    +      -       -      +
    352I  ARG*     3.2    23.5    +      -       -      +
    353I  VAL*     3.0    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 350 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193I  ASN*     4.1     4.8    -      -       +      -
    194I  LEU*     3.2    47.4    +      -       +      +
    205I  PRO*     4.0     6.6    -      -       +      +
    206I  ALA      3.8     8.7    -      -       -      +
    207I  THR*     3.5    26.9    -      -       +      +
    346I  TYR      2.5    24.1    +      -       -      -
    347I  ILE*     3.5     8.1    -      -       -      -
    348I  SER      3.2     0.2    -      -       -      -
    349I  GLU*     1.3    76.0    -      -       -      +
    351I  LEU*     1.3    60.6    +      -       -      +
    353I  VAL*     3.2     9.0    +      -       -      +
    354I  ASP*     3.2    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 351 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207I  THR*     3.4    29.6    -      -       +      +
    211I  ARG*     3.7    28.8    +      -       -      +
    217I  THR*     3.8    21.5    -      -       +      -
    220I  ILE*     4.3    14.8    -      -       +      -
    221I  LEU*     4.3     5.6    -      -       +      -
    314I  ASN*     3.4    30.1    -      -       +      +
    347I  ILE*     2.9    28.1    +      -       +      +
    350I  THR*     1.3    75.5    -      -       -      +
    352I  ARG*     1.3    60.8    +      -       -      +
    354I  ASP*     3.4    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 352 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296I  VAL*     4.2    11.7    -      -       -      +
    314I  ASN*     3.0    35.8    +      -       -      +
    315I  MET*     3.4     8.1    -      -       -      +
    316I  GLU*     2.8    41.3    +      -       -      +
    348I  SER*     3.0    26.0    +      -       -      +
    349I  GLU*     3.2    27.8    +      -       -      +
    351I  LEU*     1.3    79.4    -      -       -      +
    353I  VAL*     1.3    61.2    +      -       +      +
    354I  ASP      3.3     3.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 353 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191I  LYS*     6.0     2.7    -      -       -      +
    193I  ASN*     4.1    24.9    -      -       -      +
    195I  PHE*     5.1     8.5    -      -       +      -
    205I  PRO*     4.1    20.0    -      -       +      +
    349I  GLU*     3.0    19.1    +      -       +      +
    350I  THR*     3.2     7.3    +      -       -      +
    352I  ARG*     1.3    79.4    -      -       +      +
    354I  ASP*     1.3    65.5    +      -       -      +
    355I  PRO*     3.4     8.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 354 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205I  PRO*     3.3    29.3    -      -       -      +
    207I  THR*     2.3    31.1    +      -       -      -
    208I  ILE*     4.4     8.8    +      -       -      +
    211I  ARG*     4.7     4.4    +      -       -      +
    350I  THR      3.2     9.4    +      -       -      +
    351I  LEU*     3.4    25.8    -      -       +      +
    352I  ARG      3.3     4.5    -      -       -      +
    353I  VAL*     1.3    77.2    -      -       -      +
    355I  PRO*     1.3    65.8    -      -       +      +
    356I  THR*     4.2    21.4    +      -       -      +
----------------------------------------------------------
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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