Contacts of the strand formed by residues 80 - 87 (chain A) in PDB entry 2P80


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 TYR 80 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  ILE*     4.9     8.4    -      -       +      +
     12A  LEU*     4.1    24.1    -      -       +      +
     36A  PRO*     4.8     4.0    -      -       +      -
     37A  LYS      3.5     5.4    +      -       -      -
     38A  VAL*     3.3    25.2    -      -       +      -
     39A  VAL*     2.8    31.2    +      -       -      +
     75A  VAL*     5.7     0.4    -      -       -      -
     78A  ASP      2.9    16.8    -      -       -      -
     79A  ASP*     1.3    76.2    -      -       -      +
     81A  LEU*     1.3    59.8    +      -       -      +
     82A  GLU      3.7     0.3    +      -       -      -
    123A  ARG*     3.8    24.7    -      -       -      -
    124A  PHE      3.3     6.7    -      -       -      +
    125A  LYS*     2.9    62.7    +      -       +      +
    329B  ASP*     3.2    29.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  VAL*     3.7     4.5    -      -       -      -
     41A  PHE*     4.3    12.6    -      -       +      -
     73A  MET*     4.0    36.3    -      -       +      -
     75A  VAL*     4.3    19.7    -      -       +      -
     79A  ASP      4.0     1.6    +      -       -      -
     80A  TYR*     1.3    71.6    -      -       -      +
     82A  GLU*     1.3    65.2    +      -       -      +
     83A  LEU*     3.6    28.0    -      -       +      +
     99A  PHE*     5.5     4.0    -      -       +      -
    122A  LEU      3.5     1.8    -      -       -      +
    123A  ARG*     3.2     2.7    -      -       -      -
    124A  PHE*     3.0    67.0    +      -       +      -
    154A  ILE*     4.3    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  ARG*     4.9     5.0    +      -       -      +
     38A  VAL*     3.9    19.0    -      -       +      +
     39A  VAL      2.8    15.7    +      -       -      +
     40A  GLU*     3.3    26.1    -      -       +      +
     41A  PHE      3.0    23.4    +      -       -      +
     81A  LEU*     1.3    74.7    -      -       -      +
     83A  LEU*     1.3    59.9    +      -       -      +
     84A  THR      4.0     0.5    +      -       -      -
    121A  ILE*     3.6    24.7    -      -       +      +
    122A  LEU      3.5     3.1    -      -       -      +
    123A  ARG*     3.3    31.9    +      -       +      +
    334B  VAL*     3.4    19.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  PHE*     3.0    32.8    -      -       +      +
     43A  MET*     3.8    38.1    -      -       +      +
     73A  MET*     4.6     2.2    -      -       -      -
     81A  LEU*     3.6    17.9    -      -       +      +
     82A  GLU*     1.3    75.3    -      -       -      +
     84A  THR*     1.3    65.3    +      -       -      +
     85A  LEU*     3.5    17.1    +      -       +      +
     97A  ILE*     3.9    33.9    -      -       +      -
     99A  PHE*     4.0    13.2    -      -       +      -
    120A  THR*     3.9     0.5    -      -       -      +
    121A  ILE*     3.6     2.0    -      -       -      -
    122A  LEU*     3.1    33.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  PHE      3.0     8.1    +      -       -      -
     42A  THR*     3.2    23.8    +      -       +      +
     43A  MET      3.1    21.7    +      -       -      -
     82A  GLU      4.0     1.1    +      -       -      -
     83A  LEU*     1.3    71.6    -      -       -      +
     85A  LEU*     1.3    57.9    +      -       -      +
     86A  ILE*     4.1    21.8    -      -       +      -
    119A  LYS*     4.3    13.0    -      -       +      +
    120A  THR      3.2    13.9    -      -       -      +
    121A  ILE*     2.9    32.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  MET*     3.0    31.6    -      -       +      +
     45A  ILE*     3.2    25.6    -      -       +      -
     64A  PHE*     3.4    35.7    -      -       +      -
     83A  LEU*     3.5    20.3    +      -       +      +
     84A  THR*     1.3    71.5    -      -       -      +
     86A  ILE*     1.3    66.2    +      -       -      +
     96A  ASN*     4.9     7.9    -      -       -      -
     97A  ILE*     4.8    13.7    -      -       +      -
    112A  THR*     5.0     3.6    -      -       +      +
    114A  ILE*     3.5    18.8    -      -       +      -
    119A  LYS*     2.9    25.7    -      -       -      +
    120A  THR*     3.1    17.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  THR*     3.8    26.9    -      -       +      -
     43A  MET      3.2     4.4    +      -       -      -
     44A  VAL*     3.4    24.5    -      -       +      -
     45A  ILE*     3.0    26.7    +      -       -      +
     84A  THR*     4.1     5.6    -      -       +      -
     85A  LEU*     1.3    86.6    -      -       -      +
     87A  ASN*     1.3    68.1    +      -       -      +
     88A  PRO*     3.2     8.7    -      -       +      +
    114A  ILE*     4.2     2.2    -      -       -      -
    118A  GLU      4.9     0.9    -      -       -      +
    119A  LYS*     3.3    35.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ILE*     4.3     4.1    -      -       +      +
     86A  ILE*     1.3    76.2    -      -       -      +
     88A  PRO*     1.3    54.6    -      -       -      +
     91A  ASN*     2.5    38.6    +      -       -      +
     93A  LEU      3.1    25.9    +      -       -      -
     95A  HIS*     3.5    12.9    -      -       -      -
    114A  ILE*     3.3    35.9    +      -       +      +
    115A  ASN      4.3     1.6    -      -       -      +
    116A  PRO*     3.5    14.5    -      -       -      +
    117A  GLY*     2.8    32.1    +      -       -      -
    118A  GLU      3.2    15.1    +      -       -      +
----------------------------------------------------------
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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