Contacts of the helix formed by residues 5098 - 5108 (chain u) in PDB entry 3A0B


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 THR5098 (chain u).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5096u  GLY      4.5     4.5    -      -       -      +
   5097u  LEU*     1.3    74.4    -      -       -      +
   5099u  GLU*     1.3    67.8    +      -       -      +
   5100u  ARG*     2.4    26.4    +      -       -      +
   5101u  GLN*     2.6    43.4    +      -       -      +
   5102u  LYS*     2.8     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU5099 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5097u  LEU      4.0     2.2    +      -       -      +
   5098u  THR*     1.3    80.2    -      -       -      +
   5100u  ARG*     1.3    58.0    +      -       +      +
   5102u  LYS*     3.6    21.8    -      -       -      +
   5103u  GLN*     2.8    27.4    +      -       -      +
   5106u  ARG*     4.1     6.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG5100 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5069u  ARG*     6.1     2.0    -      -       -      +
   5098u  THR*     2.4    17.1    +      -       -      +
   5099u  GLU*     1.3    75.1    -      -       +      +
   5101u  GLN*     1.3    58.3    +      -       -      +
   5103u  GLN*     2.6    66.5    +      -       -      +
   5104u  ILE*     2.8    22.8    +      -       +      +
   5107u  GLU*     3.8    15.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN5101 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5074u  THR*     5.0     5.3    +      -       -      -
   5075u  LEU*     3.1    41.4    -      -       +      +
   5078u  LEU*     4.2    13.4    -      -       -      +
   5096u  GLY      3.9     4.2    -      -       -      +
   5097u  LEU*     3.1    20.1    -      -       +      +
   5098u  THR*     2.6    50.2    +      -       -      +
   5100u  ARG*     1.3    75.5    -      -       -      +
   5102u  LYS*     1.3    60.9    +      -       -      +
   5103u  GLN      2.9     0.3    +      -       -      -
   5104u  ILE*     3.0    13.7    +      -       +      +
   5105u  LEU*     2.8    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS5102 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5092u  LEU*     3.6    24.9    +      -       +      +
   5093u  ASN      5.6     0.7    -      -       -      +
   5097u  LEU*     3.2    34.3    -      -       +      +
   5098u  THR      2.8    12.5    +      -       -      +
   5099u  GLU*     3.6    20.6    -      -       -      +
   5101u  GLN*     1.3    78.4    -      -       -      +
   5103u  GLN*     1.3    63.8    +      -       -      +
   5105u  LEU*     3.7    12.3    +      -       -      +
   5106u  ARG*     3.4    40.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN5103 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5099u  GLU      2.8    15.2    +      -       -      +
   5100u  ARG*     2.6    49.3    +      -       -      +
   5102u  LYS*     1.3    73.9    -      -       -      +
   5104u  ILE*     1.3    67.5    +      -       -      +
   5106u  ARG*     2.7    39.0    +      -       -      +
   5107u  GLU*     3.1    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE5104 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5069u  ARG*     4.0    14.1    -      -       -      +
   5070u  GLY*     3.5    28.9    -      -       -      +
   5071u  LEU*     4.6     2.5    -      -       +      -
   5075u  LEU*     4.1     8.1    -      -       +      -
   5100u  ARG*     2.8    30.5    +      -       +      +
   5101u  GLN*     3.6    16.4    -      -       +      +
   5103u  GLN*     1.3    72.2    -      -       +      +
   5105u  LEU*     1.3    64.6    +      -       -      +
   5107u  GLU*     3.0    20.1    +      -       +      +
   5108u  ASN*     2.8    48.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU5105 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5071u  LEU*     6.1     2.2    -      -       +      -
   5075u  LEU*     3.5    32.5    -      -       +      -
   5079u  ILE*     5.0     5.4    -      -       +      -
   5091u  VAL*     3.4    34.3    -      -       +      -
   5092u  LEU*     4.0    14.8    -      -       +      +
   5094u  ILE*     5.3     0.9    -      -       +      -
   5097u  LEU*     3.2    36.6    -      -       +      -
   5101u  GLN      2.8    22.7    +      -       -      +
   5102u  LYS*     3.7     6.1    -      -       -      +
   5104u  ILE*     1.3    71.3    -      -       -      +
   5106u  ARG*     1.3    57.1    +      -       -      +
   5108u  ASN*     3.6     1.5    -      -       -      -
   5109u  LEU*     2.8    36.6    +      -       -      +
   5112u  PHE*     4.4    15.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG5106 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5092u  LEU*     3.1    39.8    -      -       +      +
   5099u  GLU*     4.1     8.5    +      -       -      +
   5102u  LYS*     3.4    30.2    +      -       -      +
   5103u  GLN*     2.7    44.1    +      -       -      +
   5105u  LEU*     1.3    75.7    -      -       -      +
   5107u  GLU*     1.3    57.2    +      -       -      +
   5108u  ASN      3.1     1.3    -      -       -      -
   5109u  LEU*     2.9    27.4    +      -       +      +
   5110u  GLU*     4.2     1.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU5107 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5069u  ARG*     5.8     2.6    +      -       -      -
   5100u  ARG*     3.8    20.6    +      -       -      -
   5103u  GLN*     3.1    21.4    +      -       -      +
   5104u  ILE*     3.0    29.1    +      -       +      +
   5106u  ARG*     1.3    77.8    -      -       -      +
   5108u  ASN*     1.3    64.3    +      -       -      +
   5109u  LEU      3.4     0.2    -      -       -      -
   5110u  GLU*     3.9    19.4    -      -       -      +
   5111u  HIS*     5.0     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN5108 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5068u  TYR*     3.9    11.8    -      -       -      +
   5069u  ARG      3.8     3.2    +      -       -      -
   5071u  LEU*     3.0    39.7    -      -       +      +
   5104u  ILE*     2.8    27.3    +      -       -      +
   5105u  LEU      3.6     1.3    -      -       -      -
   5107u  GLU*     1.3    82.4    -      -       -      +
   5109u  LEU*     1.3    64.1    +      -       -      +
   5110u  GLU*     3.3     2.5    -      -       -      -
   5111u  HIS*     3.1    28.4    +      -       -      +
   5112u  PHE*     3.0    39.1    -      -       +      -
----------------------------------------------------------
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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