Contacts of the helix formed by residues 91 - 105 (chain A) in PDB entry 2ZHX


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 91 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  TYR*     3.6    36.8    -      -       +      +
     75A  HIS*     4.8     2.9    -      -       -      +
     83A  VAL*     3.5    33.4    -      -       +      -
     87A  VAL*     4.5     3.1    -      -       +      -
     90A  TRP*     1.4    87.4    -      -       +      +
     92A  ARG*     1.3    58.7    +      -       -      +
     93A  SER      3.3     0.2    -      -       -      -
     94A  LEU*     2.7    29.4    +      -       +      +
     95A  ALA      2.9    10.2    +      -       -      -
     19B  GLN*     3.5    27.8    -      -       +      +
     20B  GLU*     3.8     7.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  PRO*     5.5     0.8    -      -       -      +
     90A  TRP*     2.3    45.4    +      -       -      +
     91A  PRO*     1.3    67.3    -      -       -      +
     93A  SER*     1.3    67.3    +      -       -      +
     95A  ALA*     3.1    24.7    +      -       -      +
     96A  ASN*     2.9    27.4    +      -       -      -
    194A  PRO*     3.7    20.9    -      -       +      -
     19B  GLN*     4.8     2.4    +      -       -      +
     20B  GLU*     3.5     5.1    +      -       -      +
     45B  THR*     4.1    13.7    -      -       +      +
     46B  ALA      4.9     0.4    -      -       -      +
     47B  TYR*     3.3    63.9    -      -       +      +
     54B  ASN*     3.1    28.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  TYR*     5.1     4.5    -      -       -      -
     81A  PHE*     4.8    10.5    -      -       -      -
     92A  ARG*     1.3    71.4    -      -       -      +
     94A  LEU*     1.3    51.3    +      -       -      +
     96A  ASN*     3.2     4.0    +      -       -      +
     97A  ILE*     2.8    37.5    +      -       -      +
    191A  HIS*     3.1    30.3    -      -       -      -
    192A  PRO*     3.8    16.1    -      -       -      +
    193A  SER*     3.4     5.6    +      -       -      +
    194A  PRO*     4.0     1.4    -      -       -      +
     20B  GLU*     2.7    40.1    +      -       -      -
     22B  ILE*     3.8     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  TYR*     4.1     3.8    -      -       -      +
     81A  PHE      3.4    28.5    -      -       -      +
     83A  VAL*     3.9    13.7    -      -       +      -
     90A  TRP*     4.7     5.2    -      -       +      -
     91A  PRO*     2.7    27.5    +      -       +      +
     93A  SER*     1.3    75.3    -      -       -      +
     95A  ALA*     1.3    61.9    +      -       -      +
     97A  ILE*     3.1    21.5    +      -       +      +
     98A  PHE*     2.9    42.0    +      -       +      -
    113A  GLY*     3.5    33.9    -      -       -      +
    115A  LEU*     4.1    22.4    -      -       +      -
    118A  TRP*     6.2     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TRP*     3.9    18.4    -      -       -      +
     91A  PRO      2.9     5.7    +      -       -      -
     92A  ARG*     3.2    44.4    -      -       -      +
     94A  LEU*     1.3    74.3    -      -       -      +
     96A  ASN*     1.3    64.6    +      -       -      +
     98A  PHE*     3.0     9.6    +      -       -      +
     99A  ASP*     3.0    27.3    +      -       -      +
    109A  LEU*     5.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  ARG*     2.9    15.3    +      -       -      +
     93A  SER      3.4     2.2    -      -       -      +
     95A  ALA*     1.3    72.9    -      -       -      +
     97A  ILE*     1.3    69.1    +      -       -      +
     99A  ASP*     2.7    24.0    +      -       -      +
    100A  GLU      3.1     8.8    +      -       -      -
    192A  PRO      2.8    31.0    +      -       -      +
    194A  PRO*     3.3    31.7    -      -       -      +
    197A  ALA*     3.6     7.4    -      -       +      +
    201A  PHE*     3.9     6.1    -      -       +      -
    202A  PHE*     3.7    27.3    -      -       +      -
     54B  ASN*     5.1     6.1    +      -       -      +
     73B  GLN*     5.5     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  PHE*     3.9    25.4    -      -       +      -
     93A  SER      2.8    24.7    +      -       -      +
     94A  LEU*     3.1    22.9    +      -       +      +
     96A  ASN*     1.3    72.1    -      -       -      +
     98A  PHE*     1.3    64.5    +      -       +      +
    100A  GLU*     3.4     3.8    +      -       -      +
    101A  TYR*     2.8    24.6    +      -       -      +
    115A  LEU*     6.2     0.2    -      -       +      -
    118A  TRP*     4.8     7.9    -      -       +      -
    168A  TRP*     3.4    36.1    -      -       +      -
    192A  PRO*     3.6    17.0    -      -       +      -
    201A  PHE*     3.7    10.0    -      -       +      -
    207A  PHE*     3.5    25.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TRP*     4.0    23.3    -      +       -      -
     94A  LEU*     2.9    27.2    +      -       +      +
     95A  ALA*     3.2    10.8    -      -       -      +
     96A  ASN      2.9     0.2    -      -       -      -
     97A  ILE*     1.3    85.0    -      -       +      +
     99A  ASP*     1.3    55.4    +      -       -      +
    101A  TYR*     3.1    15.6    +      +       +      +
    102A  THR*     2.8    29.1    +      -       -      +
    109A  LEU*     3.8    15.5    -      -       +      -
    110A  PRO*     3.7    30.7    -      -       +      -
    112A  ASN      3.7    22.7    -      -       -      -
    113A  GLY*     3.9    10.5    -      -       -      -
    115A  LEU*     3.6    31.6    -      -       +      -
    118A  TRP*     4.6     9.9    -      +       -      -
    226A  LEU*     4.4     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ALA*     3.0    18.6    +      -       -      +
     96A  ASN*     2.7    23.7    +      -       -      +
     98A  PHE*     1.3    69.6    -      -       -      +
    100A  GLU*     1.3    53.5    +      -       -      +
    102A  THR*     2.9    10.2    +      -       -      -
    103A  ALA*     2.7    35.9    +      -       -      +
    109A  LEU*     4.3    14.2    -      -       -      +
    202A  PHE*     4.2    13.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  ASN      3.1     2.6    +      -       -      -
     97A  ILE      3.7     7.6    -      -       -      +
     99A  ASP*     1.3    77.4    -      -       -      +
    101A  TYR*     1.3    53.8    +      -       -      +
    103A  ALA*     4.0     4.2    -      -       -      +
    104A  ASP*     2.6    38.5    +      -       -      +
    201A  PHE*     3.8    30.3    -      -       +      +
    202A  PHE*     3.4    13.2    -      -       +      +
    203A  GLY      2.9    26.0    +      -       -      -
    205A  ARG*     2.8    50.2    +      -       -      -
    206A  PRO*     3.8    21.1    -      -       +      -
    207A  PHE*     4.1     2.0    -      -       +      -
     54E  THR*     5.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  ILE      2.8    11.6    +      -       -      +
     98A  PHE*     3.1    19.0    +      +       +      +
    100A  GLU*     1.3    74.0    -      -       -      +
    102A  THR*     1.3    66.1    +      -       +      +
    105A  LEU*     3.1    50.8    +      -       +      +
    107A  TYR*     3.2    23.0    -      +       +      +
    108A  PRO      3.8     9.6    -      -       -      -
    110A  PRO*     3.7    24.5    -      -       +      -
    118A  TRP*     4.0    19.5    -      +       -      -
    207A  PHE*     3.2    26.2    -      +       +      -
    224A  TRP*     4.3     0.7    -      -       +      -
    225A  ARG*     3.2    39.1    -      -       -      -
    226A  LEU*     3.4    19.1    +      -       +      +
    227A  PRO*     3.8     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  PHE      2.8    19.7    +      -       -      +
     99A  ASP*     2.9    18.0    +      -       -      -
    101A  TYR*     1.3    77.8    -      -       +      +
    103A  ALA*     1.3    62.0    +      -       -      +
    105A  LEU      2.4    21.9    -      -       -      +
    106A  GLY*     4.4     1.4    -      -       -      +
    107A  TYR      3.4    25.3    -      -       -      +
    108A  PRO*     3.7     1.8    -      -       +      -
    109A  LEU*     3.5    36.3    -      -       +      +
     47E  SER*     4.8     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  ASP      2.7    17.7    +      -       -      +
    100A  GLU*     3.6    11.0    -      -       -      +
    102A  THR*     1.3    80.2    +      -       -      +
    104A  ASP*     1.3    62.0    +      -       -      +
    105A  LEU      4.2     0.7    -      -       -      +
    205A  ARG*     3.9    20.8    -      -       -      +
     47E  SER*     3.0    35.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  GLU*     2.6    24.0    +      -       -      +
    101A  TYR      4.2     1.8    -      -       -      +
    103A  ALA*     1.3    76.5    -      -       -      +
    105A  LEU*     1.3    62.0    +      -       -      +
    205A  ARG*     3.2    36.8    -      -       -      +
    207A  PHE*     3.1    21.7    +      -       +      +
    208A  SER*     2.7    51.6    +      -       -      -
     47E  SER*     5.4     0.7    -      -       -      -
     48E  ASN*     6.0     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  TYR*     3.1    30.8    +      -       +      +
    102A  THR      2.4    30.2    -      -       -      +
    103A  ALA      4.7     0.7    -      -       -      -
    104A  ASP*     1.3    77.9    -      -       -      +
    106A  GLY*     1.3    62.3    +      -       -      +
    107A  TYR*     2.9    43.6    +      -       +      +
    207A  PHE*     4.0    14.4    -      -       +      -
    208A  SER*     4.2    32.8    -      -       -      +
    211A  ASN*     5.3     2.5    -      -       -      +
    224A  TRP*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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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