Contacts of the helix formed by residues 391 - 403 (chain A) in PDB entry 3ZRH


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 391 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389A  ASP      3.8     2.9    -      -       -      +
    390A  LEU*     1.3    93.3    -      -       +      +
    392A  PRO*     1.3    75.7    -      -       +      +
    393A  THR*     3.2     5.8    -      -       +      -
    394A  VAL*     2.9    23.2    +      -       +      +
    395A  GLN*     2.9    19.8    +      -       -      +
    687A  TYR      5.8     0.2    -      -       -      +
    690A  ILE      5.3     3.4    -      -       -      +
    691A  ARG*     6.1     3.6    -      -       -      +
    692A  PRO      4.1    20.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 392 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  LEU      3.5     4.9    -      -       -      +
    391A  PRO*     1.3    84.7    -      -       +      +
    393A  THR*     1.3    63.2    +      -       +      +
    395A  GLN*     3.2    13.9    +      -       +      +
    396A  GLU*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 393 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391A  PRO*     4.3     7.2    -      -       +      -
    392A  PRO*     1.3    76.3    -      -       +      +
    394A  VAL*     1.3    62.9    +      -       +      +
    396A  GLU*     3.5     8.2    +      -       -      +
    397A  LYS*     3.1    26.9    +      -       -      +
    692A  PRO*     4.0    22.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 394 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  LEU*     3.9    20.2    -      -       +      -
    391A  PRO*     2.9    29.5    +      -       +      +
    393A  THR*     1.3    78.4    -      -       +      +
    395A  GLN*     1.3    66.4    +      -       -      +
    397A  LYS*     3.2     7.2    +      -       +      +
    398A  LEU*     2.9    20.8    +      -       -      +
    687A  TYR*     3.7    36.2    -      -       +      +
    690A  ILE*     3.8    32.3    -      -       +      +
    692A  PRO      4.1    10.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 395 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    387A  ILE*     3.4    26.1    +      -       +      +
    388A  GLU*     3.4    23.6    +      -       -      +
    390A  LEU*     3.1    28.4    +      -       +      -
    391A  PRO      2.9    10.9    +      -       -      +
    392A  PRO*     3.2    15.7    +      -       +      +
    394A  VAL*     1.3    77.0    -      -       -      +
    396A  GLU*     1.3    57.2    +      -       -      +
    398A  LEU*     3.0     8.1    +      -       -      +
    399A  PHE*     2.8    51.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 396 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392A  PRO      3.1    13.2    +      -       -      +
    393A  THR*     3.5     7.8    +      -       -      +
    394A  VAL      3.3     0.2    -      -       -      -
    395A  GLN*     1.3    78.3    -      -       -      +
    397A  LYS*     1.3    57.8    +      -       -      +
    399A  PHE*     4.4     3.8    -      -       -      +
    400A  ASP*     2.8    45.7    +      -       -      +
    405A  ARG*     3.7    21.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 397 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393A  THR      3.1    18.8    +      -       -      +
    394A  VAL*     3.6     6.5    -      -       +      +
    396A  GLU*     1.3    79.9    -      -       -      +
    398A  LEU*     1.3    62.1    +      -       -      +
    400A  ASP*     3.4     9.3    +      -       -      +
    401A  GLU*     2.9    57.7    +      -       -      +
    686A  ARG*     3.6    24.4    -      -       -      +
    687A  TYR*     4.2     3.8    -      -       +      -
    690A  ILE*     3.8    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 398 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    387A  ILE*     4.1    19.7    -      -       +      -
    390A  LEU*     4.0    17.5    -      -       +      -
    394A  VAL      2.9    14.2    +      -       -      +
    395A  GLN*     3.5     9.0    -      -       -      +
    397A  LYS*     1.3    76.2    -      -       -      +
    399A  PHE*     1.3    90.6    +      -       +      +
    401A  GLU*     3.1     3.3    +      -       -      +
    402A  VAL*     3.0    24.6    +      -       +      +
    683A  TRP*     3.7    35.0    -      -       +      -
    684A  LEU*     4.3     4.9    -      -       +      -
    687A  TYR*     3.6    40.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 399 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  LEU*     4.4    13.5    -      -       +      -
    387A  ILE*     4.0    17.0    -      -       +      -
    395A  GLN*     2.8    39.6    +      -       +      +
    396A  GLU*     3.9     4.9    -      -       -      +
    398A  LEU*     1.3    88.8    -      -       +      +
    400A  ASP*     1.3    65.6    +      -       -      +
    402A  VAL*     4.4     0.9    -      -       +      -
    403A  LEU*     2.9    52.0    +      -       +      +
    405A  ARG*     3.9    23.0    +      -       -      +
    433A  TYR*     4.2    24.7    -      +       -      -
    592A  MET*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 400 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340A  ALA      3.9     3.6    -      -       -      +
    341A  LYS*     3.0    27.7    +      -       -      -
    396A  GLU*     2.8    41.2    +      -       -      +
    397A  LYS*     3.6     9.7    -      -       -      +
    398A  LEU      3.4     0.2    -      -       -      -
    399A  PHE*     1.3    73.4    -      -       -      +
    401A  GLU*     1.3    60.8    +      -       +      +
    403A  LEU      3.8     0.9    -      -       -      +
    405A  ARG*     2.7    39.3    +      -       -      +
   1694A  EDO      4.4     2.0    +      -       -      -
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Residues in contact with GLU 401 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339A  ALA      4.9     6.1    -      -       -      +
    340A  ALA      3.5    23.3    -      -       -      +
    341A  LYS*     3.7    11.1    -      -       -      +
    342A  CYS*     2.9    37.0    +      -       -      +
    343A  ILE*     3.8     1.0    -      -       -      +
    397A  LYS*     2.9    44.7    +      -       -      +
    398A  LEU      3.1     2.7    +      -       -      +
    399A  PHE      3.0     0.6    -      -       -      -
    400A  ASP*     1.3    81.9    -      -       +      +
    402A  VAL*     1.3    58.6    +      -       -      +
    686A  ARG*     2.7    22.6    +      -       -      -
    687A  TYR*     2.6    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 402 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342A  CYS      4.4     0.7    -      -       -      +
    343A  ILE*     4.0    11.2    -      -       +      +
    344A  PRO*     4.0    20.4    -      -       +      -
    383A  LEU*     4.8     9.6    -      -       +      -
    398A  LEU*     3.0    32.3    +      -       +      +
    399A  PHE*     4.7     0.9    -      -       +      -
    401A  GLU*     1.3    79.0    -      -       -      +
    403A  LEU*     1.3    82.8    +      -       +      +
    435A  LEU*     3.7    17.4    -      -       +      +
    436A  TRP*     3.0    25.3    +      -       -      +
    683A  TRP*     3.9    24.9    -      -       +      -
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Residues in contact with LEU 403 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341A  LYS*     3.1    26.3    +      -       -      -
    383A  LEU*     4.8     2.2    -      -       +      -
    399A  PHE*     2.9    50.2    +      -       +      +
    400A  ASP      3.8     2.1    -      -       -      +
    402A  VAL*     1.3    95.5    -      -       +      +
    404A  ASP*     1.3    65.8    +      -       -      +
    405A  ARG*     3.6    18.4    +      -       -      +
    408A  GLN*     4.6    13.7    -      -       +      +
    433A  TYR*     3.9    35.0    -      -       +      -
    434A  ALA      3.4    12.8    -      -       -      +
    435A  LEU*     4.3     7.9    -      -       +      -
    436A  TRP*     3.6     2.5    -      -       -      -
   1694A  EDO      3.6     0.7    +      -       -      -
----------------------------------------------------------
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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