Contacts of the strand formed by residues 68 - 78 (chain A) in PDB entry 2DB9


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 GLY 68 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  ALA*     5.4     0.2    -      -       -      -
     44A  THR*     3.1    14.9    +      -       -      -
     66A  ILE*     3.4     8.0    -      -       -      +
     67A  THR*     1.3    84.9    +      -       -      +
     69A  VAL*     1.3    69.4    +      -       -      +
     88A  GLN*     3.0    32.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  PHE*     3.9    11.4    -      -       +      -
     40A  ALA*     3.2    42.9    -      -       +      +
     43A  VAL*     3.3    16.2    -      -       +      -
     68A  GLY*     1.3    79.0    -      -       -      +
     70A  VAL*     1.3    76.1    +      -       -      +
     85A  LYS*     3.8    31.6    -      -       +      -
     86A  GLY      3.7     6.3    -      -       -      +
     87A  LEU*     4.0     6.3    -      -       +      -
     88A  GLN*     4.1     2.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  VAL*     1.3    84.6    -      -       -      +
     71A  GLU*     1.3    65.2    +      -       -      +
     72A  THR*     4.9     4.5    -      -       +      -
     85A  LYS*     3.6     5.0    -      -       -      +
     86A  GLY*     2.9    50.3    +      -       -      +
     88A  GLN*     3.1    35.0    -      -       +      +
     97A  VAL*     3.8    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  VAL*     1.3    79.7    -      -       -      +
     72A  THR*     1.3    67.3    +      -       -      +
     84A  ASN*     3.9    13.8    +      -       -      +
     85A  LYS*     6.0     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  VAL*     4.9     5.4    -      -       +      -
     71A  GLU*     1.3    83.2    -      -       -      +
     73A  ALA*     1.3    61.4    +      -       -      +
     74A  LYS      3.1    19.9    +      -       -      -
     84A  ASN*     3.3    35.5    +      -       -      -
     86A  GLY*     4.2    19.7    -      -       -      +
     97A  VAL*     5.3     3.6    -      -       +      -
     99A  ARG*     3.9    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  THR*     1.3    75.9    -      -       -      +
     74A  LYS*     1.3    69.3    +      -       +      +
     75A  VAL*     4.0     5.9    +      -       -      +
     84A  ASN*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  THR*     3.1    21.6    +      -       -      -
     73A  ALA*     1.3    85.8    -      -       +      +
     75A  VAL*     1.3    66.3    +      -       -      +
     76A  TYR*     4.3     1.7    +      -       -      -
     84A  ASN*     3.9     3.8    -      -       -      +
     99A  ARG*     4.3    14.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ALA      4.7     5.6    -      -       -      +
     74A  LYS*     1.3    78.0    -      -       -      +
     76A  TYR*     1.3    65.5    +      -       -      +
     82A  ARG*     3.3    47.1    -      -       +      +
     83A  THR      3.3    10.8    -      -       -      +
     84A  ASN*     3.4    25.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  THR*     5.0     0.4    -      -       -      -
     74A  LYS      4.4     4.3    -      -       -      -
     75A  VAL*     1.3    79.2    -      -       -      +
     77A  GLN*     1.3    70.9    +      -       -      +
     78A  LEU*     4.3     2.2    -      -       +      -
     82A  ARG*     3.1     8.6    -      -       -      +
     83A  THR*     3.0    64.9    +      -       +      +
     84A  ASN*     4.2     7.4    -      -       -      -
     85A  LYS      2.9    24.8    +      -       -      -
     99A  ARG*     3.1    42.0    -      -       +      -
    100A  LEU*     3.2    23.6    +      -       +      +
    101A  GLU*     3.1    28.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  TYR*     1.3    86.6    -      -       -      +
     78A  LEU*     1.3    63.4    +      -       -      +
     79A  GLY      4.0     3.1    -      -       -      +
     80A  GLY*     3.5    36.4    +      -       -      +
     81A  THR      3.4     4.9    -      -       -      +
     82A  ARG*     3.9    12.1    -      -       +      +
    101A  GLU*     3.4    16.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ARG*     3.4    29.8    -      -       +      +
     31A  GLU*     3.2    44.3    -      -       +      +
     34A  CYS*     4.8     1.3    -      -       +      -
     76A  TYR*     4.3     1.6    -      -       +      -
     77A  GLN*     1.3    78.2    -      -       -      +
     79A  GLY*     1.3    61.3    +      -       -      +
     80A  GLY      3.3     0.7    -      -       -      -
     81A  THR*     2.5    23.7    +      -       +      +
     83A  THR*     3.9    20.0    -      -       +      -
    100A  LEU*     3.3    50.9    -      -       +      -
    101A  GLU*     3.6    11.9    -      -       -      +
----------------------------------------------------------
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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