Contacts of the strand formed by residues 154 - 160 (chain B) in PDB entry 1GN6


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 VAL 154 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  GLY*     3.3     0.5    -      -       -      -
    130B  TRP*     2.9    38.9    +      -       +      +
    132B  THR*     4.6     7.4    -      -       +      -
    152B  ALA      4.1     8.1    -      -       -      +
    153B  ILE*     1.3    79.0    -      -       -      +
    155B  PRO*     1.3    77.2    -      -       +      +
    156B  LEU*     3.6     6.4    -      -       +      +
    193B  ARG*     4.9     3.8    -      -       +      +
    197B  ALA*     3.9    32.8    -      -       +      +
    152D  ALA*     4.8     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 155 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74B  VAL*     5.3     0.2    -      -       +      -
     78B  ILE*     3.4    30.9    -      -       +      +
    127B  ALA*     5.8     0.9    -      -       +      -
    128B  LEU      3.8     5.4    -      -       -      +
    129B  GLY*     4.3     2.2    -      -       -      -
    153B  ILE*     3.7     3.5    -      -       -      +
    154B  VAL*     1.3    91.1    -      -       +      +
    156B  LEU*     1.3    65.2    +      -       -      +
    158B  LEU*     4.5    12.6    -      -       +      -
    193B  ARG*     3.9    15.2    +      -       -      +
    151D  LEU*     4.1    33.7    -      -       +      -
    152D  ALA*     3.6    23.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 156 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  ILE*     5.0     2.2    -      -       -      -
     82B  ASN*     3.3    10.5    +      -       -      -
     95B  LEU*     5.0     3.1    -      -       +      -
    128B  LEU*     2.7    32.4    +      -       +      +
    129B  GLY*     4.4     2.7    -      -       -      -
    130B  TRP*     4.6     3.4    -      -       +      -
    137B  LEU*     3.3    33.7    -      -       +      -
    154B  VAL*     3.6    18.8    -      -       +      +
    155B  PRO*     1.3    82.4    -      -       -      +
    157B  LEU*     1.3    58.6    +      -       -      +
    190B  VAL*     3.8    15.5    -      -       +      +
    193B  ARG*     3.2    51.3    -      -       +      +
    194B  TYR*     4.1    22.7    -      -       +      -
    197B  ALA*     4.4     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 157 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82B  ASN*     3.2    24.7    -      -       +      +
    109B  PHE*     4.2    13.2    -      -       +      -
    113B  PHE*     4.1    14.1    -      -       +      -
    126B  ALA      4.0     0.2    -      -       -      +
    127B  ALA*     3.6     0.9    -      -       -      -
    128B  LEU*     3.0    40.8    +      -       +      -
    156B  LEU*     1.3    78.9    -      -       -      +
    158B  LEU*     1.3    67.7    +      -       -      +
    181B  PHE*     3.9    19.7    -      -       +      -
    182B  TRP*     4.2    17.0    -      -       +      -
    185B  VAL*     4.0     9.4    -      -       +      -
    187B  TRP*     4.0    29.6    -      -       +      -
    190B  VAL*     3.8    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 158 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75B  ASN*     3.7    44.0    -      -       +      +
     78B  ILE*     4.2    20.4    -      -       +      -
     79B  TRP*     3.3    21.1    -      -       +      +
     82B  ASN*     2.8    14.6    +      -       -      +
    113B  PHE*     4.5     2.2    -      -       -      -
    125B  TRP*     3.8    20.6    -      -       +      -
    126B  ALA      3.4     3.4    -      -       -      +
    127B  ALA*     3.1    33.4    -      -       +      -
    142B  VAL*     5.6     0.4    -      -       +      -
    155B  PRO*     4.5     9.6    -      -       +      -
    157B  LEU*     1.3    78.8    -      -       -      +
    159B  LEU*     1.3    60.7    +      -       -      +
    160B  ASP      4.1     0.4    -      -       -      -
    181B  PHE*     3.9     8.9    -      -       -      -
    151D  LEU*     4.3    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 159 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79B  TRP*     3.9     6.1    -      -       +      -
    113B  PHE*     3.7    25.3    -      -       +      -
    114B  HIS*     6.2     0.4    -      -       -      -
    117B  ALA*     3.5    27.8    -      -       +      -
    125B  TRP*     3.1    10.5    -      -       -      -
    126B  ALA      3.0    28.9    +      -       -      +
    158B  LEU*     1.3    75.0    -      -       -      +
    160B  ASP*     1.3    62.4    +      -       -      +
    161B  MET*     3.4    11.1    +      -       -      +
    177B  PHE*     3.8    26.7    -      -       +      -
    178B  ALA*     4.2    15.0    -      -       +      +
    181B  PHE*     3.8    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 160 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  HIS*     2.8    15.4    +      -       -      -
     76B  HIS*     3.3     1.9    +      -       -      -
     79B  TRP*     3.7    17.4    -      -       +      -
    125B  TRP*     3.3    30.5    -      -       +      -
    159B  LEU*     1.3    70.1    -      -       -      +
    161B  MET*     1.3    61.1    +      -       -      +
    162B  TRP*     3.1    26.2    +      -       -      +
    164B  HIS*     3.5     0.3    +      -       -      -
    165B  ALA*     3.5    16.4    -      -       +      +
    177B  PHE*     3.4    24.3    -      -       -      -
    999B   FE      2.0    32.8    -      -       -      -
----------------------------------------------------------
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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