Contacts of the helix formed by residues 91 - 105 (chain K) 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 K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70K  TYR*     3.8    44.0    -      -       +      +
     75K  HIS*     4.6     6.7    -      -       -      +
     83K  VAL*     4.0    18.8    -      -       +      -
     87K  VAL*     4.4     6.7    -      -       +      -
     89K  PRO      4.3     2.2    -      -       -      +
     90K  TRP*     1.3    85.4    -      -       +      +
     92K  ARG*     1.3    57.7    +      -       -      +
     93K  SER      3.1     0.4    -      -       -      -
     94K  LEU*     2.7    31.1    +      -       +      +
     95K  ALA      2.8     9.5    +      -       -      -
     19L  GLN*     3.3    26.7    -      -       +      +
     20L  GLU*     4.0     9.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 92 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89K  PRO*     4.9     3.2    -      -       -      +
     90K  TRP*     2.4    44.3    +      -       -      +
     91K  PRO*     1.3    70.1    -      -       -      +
     93K  SER*     1.3    56.9    +      -       -      +
     95K  ALA*     3.0    27.0    -      -       -      +
     96K  ASN*     2.7    36.8    +      -       -      +
    194K  PRO*     3.6    23.8    -      -       +      -
     19L  GLN*     3.6     4.5    +      -       -      +
     20L  GLU*     3.7     3.6    +      -       -      +
     45L  THR*     4.3    10.3    -      -       +      +
     47L  TYR*     3.1    62.7    +      -       +      +
     54L  ASN*     3.2    29.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 93 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70K  TYR*     5.4     3.4    -      -       -      -
     81K  PHE*     5.0     9.0    -      -       -      -
     91K  PRO*     5.3     0.7    -      -       -      -
     92K  ARG*     1.3    72.6    -      -       -      +
     94K  LEU*     1.3    58.0    +      -       -      +
     96K  ASN*     3.3     2.8    +      -       -      +
     97K  ILE*     2.8    33.1    +      -       -      +
    191K  HIS*     3.2    26.7    -      -       -      -
    192K  PRO*     3.8    14.1    -      -       -      +
    193K  SER*     3.3     8.5    -      -       -      +
    194K  PRO*     4.4     0.8    -      -       -      +
     20L  GLU*     2.6    42.2    +      -       -      -
     22L  ILE*     5.2     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 94 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70K  TYR*     4.1    12.7    +      -       -      +
     81K  PHE*     3.9    16.8    -      -       -      +
     83K  VAL*     4.1    14.1    -      -       +      -
     90K  TRP*     4.4    12.8    -      -       +      -
     91K  PRO*     2.7    15.3    +      -       +      +
     93K  SER*     1.3    75.3    -      -       -      +
     95K  ALA*     1.3    62.2    +      -       -      +
     97K  ILE*     3.0    22.3    +      -       +      +
     98K  PHE*     2.9    53.5    +      -       +      -
    113K  GLY*     3.9    29.2    -      -       -      +
    115K  LEU*     4.0    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 95 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90K  TRP*     3.9    18.1    -      -       +      +
     91K  PRO      2.8     5.1    +      -       -      -
     92K  ARG*     3.0    48.2    -      -       -      +
     94K  LEU*     1.3    77.7    -      -       -      +
     96K  ASN*     1.3    63.7    +      -       -      +
     98K  PHE*     3.1    13.6    +      -       -      +
     99K  ASP*     3.1    21.0    +      -       -      +
    109K  LEU*     5.6     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 96 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92K  ARG*     2.7    19.8    +      -       -      +
     93K  SER      3.5     0.4    -      -       -      +
     95K  ALA*     1.3    71.9    -      -       -      +
     97K  ILE*     1.3    69.3    +      -       -      +
     99K  ASP*     3.1    20.6    +      -       -      +
    100K  GLU      3.1     9.0    +      -       -      -
    192K  PRO*     2.8    31.8    +      -       +      +
    194K  PRO*     3.5    22.4    -      -       -      +
    197K  ALA*     3.3    14.1    -      -       +      +
    201K  PHE*     3.8     3.5    -      -       +      -
    202K  PHE*     3.5    29.8    -      -       +      -
     54L  ASN*     5.2     3.4    +      -       -      +
     73L  GLN*     5.5     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 97 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81K  PHE*     3.7    27.1    -      -       +      -
     93K  SER      2.8    31.1    +      -       -      +
     94K  LEU*     3.0    20.6    +      -       +      +
     96K  ASN*     1.3    73.1    -      -       -      +
     98K  PHE*     1.3    71.5    +      -       +      +
    100K  GLU*     3.0     4.3    +      -       -      +
    101K  TYR*     2.8    18.8    +      -       -      +
    115K  LEU*     6.2     0.2    -      -       +      -
    118K  TRP*     5.0     7.0    -      -       +      -
    168K  TRP*     3.5    34.8    -      -       +      -
    192K  PRO*     3.6    16.8    -      -       +      -
    201K  PHE*     3.9     9.4    -      -       +      -
    207K  PHE*     3.6    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 98 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90K  TRP*     4.1    23.6    -      +       -      +
     94K  LEU*     2.9    37.5    +      -       +      -
     95K  ALA*     3.1     7.6    +      -       -      +
     97K  ILE*     1.3    79.4    -      -       +      +
     99K  ASP*     1.3    52.4    +      -       -      +
    101K  TYR*     2.9    16.4    +      +       +      +
    102K  THR*     2.7    35.7    +      -       -      +
    109K  LEU*     3.9    14.6    -      -       +      -
    110K  PRO*     3.7    31.9    -      -       +      -
    112K  ASN      3.7    22.4    -      -       -      -
    113K  GLY*     4.1     5.6    -      -       -      -
    115K  LEU*     3.6    32.3    -      -       +      -
    118K  TRP*     4.4    11.4    -      +       -      -
    226K  LEU*     4.3     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 99 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95K  ALA*     3.1    15.5    +      -       -      +
     96K  ASN*     3.1    19.1    +      -       -      +
     97K  ILE      3.1     0.2    +      -       -      -
     98K  PHE*     1.3    75.8    -      -       -      +
    100K  GLU*     1.3    57.3    +      -       -      +
    102K  THR*     2.7    22.9    +      -       -      -
    103K  ALA*     2.9    18.7    +      -       -      +
    109K  LEU*     4.3    14.0    -      -       -      +
    202K  PHE*     4.2    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 100 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  THR*     5.1     1.0    -      -       -      +
     96K  ASN      3.1     2.2    +      -       -      -
     97K  ILE      3.0     8.0    +      -       -      +
     99K  ASP*     1.3    78.6    -      -       -      +
    101K  TYR*     1.3    54.0    +      -       -      +
    103K  ALA*     4.3     4.3    -      -       -      +
    104K  ASP*     2.8    37.1    +      -       -      +
    201K  PHE*     3.5    33.4    -      -       +      +
    202K  PHE*     3.2    14.4    -      -       +      +
    203K  GLY*     2.7    28.5    +      -       -      -
    204K  SER      4.2     0.2    -      -       -      -
    205K  ARG*     2.9    44.9    +      -       -      -
    206K  PRO*     3.7    20.4    -      -       +      -
    207K  PHE*     4.1     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 101 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97K  ILE      2.8    10.7    +      -       -      +
     98K  PHE*     2.9    21.9    +      +       +      +
    100K  GLU*     1.3    74.0    -      -       -      +
    102K  THR*     1.3    78.2    +      -       +      -
    104K  ASP*     3.2     0.3    +      -       -      +
    105K  LEU*     2.9    55.1    +      -       +      +
    107K  TYR*     3.5    22.0    -      +       +      +
    108K  PRO      3.6    19.5    -      -       -      -
    110K  PRO*     3.9    16.4    -      -       +      -
    118K  TRP*     4.1    18.8    -      +       -      -
    207K  PHE*     3.3    26.4    -      +       +      -
    224K  TRP*     4.5     0.7    -      -       +      -
    225K  ARG*     3.2    39.2    -      -       -      -
    226K  LEU*     3.3    20.7    +      -       +      +
    227K  PRO*     3.6     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 102 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98K  PHE      2.7    16.4    +      -       -      +
     99K  ASP*     2.7    27.7    +      -       -      -
    101K  TYR*     1.3    78.6    -      -       +      +
    103K  ALA*     1.3    56.8    +      -       -      +
    105K  LEU      2.5    20.4    -      -       -      +
    106K  GLY*     4.6     1.0    -      -       -      -
    107K  TYR      3.7    13.3    -      -       -      +
    108K  PRO*     3.7     6.5    -      -       +      -
    109K  LEU*     3.4    45.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 103 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  SER*     2.9    33.3    +      -       -      +
     54A  THR*     6.3     0.9    -      -       +      -
     99K  ASP      2.9    18.3    +      -       -      +
    100K  GLU*     3.8     9.0    -      -       -      +
    102K  THR*     1.3    80.3    +      -       -      +
    104K  ASP*     1.3    56.9    +      -       -      +
    205K  ARG*     3.8    22.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 104 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  SER*     3.4    13.0    +      -       -      -
     48A  ASN*     5.1     0.9    -      -       -      +
    100K  GLU*     2.8    24.8    +      -       -      +
    101K  TYR      3.7     2.9    -      -       -      +
    103K  ALA*     1.3    76.7    -      -       -      +
    105K  LEU*     1.3    62.8    +      -       -      +
    205K  ARG*     3.2    35.0    -      -       -      +
    206K  PRO      3.5     0.2    -      -       -      -
    207K  PHE*     3.0    22.3    +      -       +      +
    208K  SER*     2.9    48.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 105 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  SER*     4.2     2.4    +      -       -      -
    101K  TYR*     2.9    39.7    +      -       +      +
    102K  THR      2.5    30.5    -      -       -      +
    103K  ALA      3.9     0.5    -      -       -      +
    104K  ASP*     1.3    79.2    -      -       -      +
    106K  GLY*     1.3    56.9    +      -       -      +
    107K  TYR*     2.9    43.5    +      -       +      +
    207K  PHE*     4.0    12.8    -      -       +      -
    208K  SER*     4.4    29.6    -      -       -      +
    211K  ASN*     5.1     3.1    -      -       -      +
    224K  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