Contacts of the strand formed by residues 388 - 393 (chain A) in PDB entry 1IGR


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 388 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357A  TYR*     3.8     1.2    -      -       -      +
    383A  GLN*     3.3     9.3    -      -       -      +
    384A  LEU*     3.0    36.8    +      -       +      +
    385A  GLU      3.7    16.8    -      -       -      -
    386A  GLY*     3.8    14.8    -      -       -      -
    387A  ASN*     1.3    74.6    -      -       -      +
    389A  SER*     1.3    62.4    -      -       -      +
    390A  PHE      4.6     2.9    -      -       -      +
    391A  TYR*     4.0    31.4    -      +       +      -
    415A  LYS*     3.2    50.7    +      -       +      +
    416A  MET      3.5    22.7    -      -       -      -
    417A  TYR*     3.8    14.4    -      +       +      +
    443A  SER*     5.0     0.5    -      -       -      -
    446A  ASP*     2.7    21.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 389 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357A  TYR*     3.1    11.2    -      -       -      +
    358A  VAL*     2.8    27.7    +      -       -      +
    378A  ILE*     4.3    13.1    -      -       -      +
    380A  GLY*     3.5    10.9    -      -       -      -
    383A  GLN*     3.9     2.7    +      -       -      -
    384A  LEU*     5.4     0.4    -      -       -      -
    388A  TYR*     1.3    73.6    -      -       -      +
    390A  PHE*     1.3    57.0    +      -       -      +
    391A  TYR      4.3     0.2    -      -       -      -
    411A  ILE*     3.4    26.7    -      -       -      -
    413A  ALA      2.4    25.3    +      -       -      -
    414A  GLY*     3.3     6.4    -      -       -      -
    415A  LYS      2.7    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 390 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358A  VAL*     3.4    32.8    -      -       +      -
    360A  ILE*     4.5     2.5    -      -       +      -
    369A  LEU*     3.7    18.2    -      -       +      -
    378A  ILE*     4.1    11.2    -      -       +      -
    388A  TYR*     4.7     0.6    -      -       -      +
    389A  SER*     1.3    79.3    -      -       -      +
    391A  TYR*     1.3    59.6    +      -       -      +
    392A  VAL*     3.3    25.1    -      -       +      -
    401A  LEU*     4.7     0.9    -      -       +      -
    402A  TRP*     3.6    36.1    -      +       -      -
    411A  ILE*     3.9    18.6    -      -       +      -
    415A  LYS      3.4     2.7    +      -       -      +
    416A  MET*     3.1    17.2    -      -       +      +
    417A  TYR      3.0    24.4    +      -       -      +
    418A  PHE*     3.6    19.7    -      +       -      -
    432A  MET*     3.7    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 391 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358A  VAL      3.0     7.7    +      -       -      +
    359A  LYS*     3.2    32.8    -      -       +      -
    360A  ILE*     2.6    34.9    +      -       -      +
    361A  ARG*     5.9     0.7    -      -       +      -
    384A  LEU*     3.5    31.4    -      -       +      -
    385A  GLU      5.6     0.9    -      -       -      -
    388A  TYR*     4.0    21.8    -      +       +      -
    390A  PHE*     1.3    74.2    -      -       -      +
    392A  VAL*     1.3    58.5    +      -       -      +
    393A  LEU*     4.1    25.2    -      -       +      +
    417A  TYR*     3.3    51.8    -      +       +      -
    500A  SO4      5.0     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 392 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360A  ILE*     3.1    14.1    -      -       +      +
    390A  PHE*     3.3    30.1    -      -       +      -
    391A  TYR*     1.3    79.6    -      -       -      +
    393A  LEU*     1.3    59.0    +      -       -      +
    395A  ASN*     3.2    20.9    -      -       -      +
    398A  LEU*     3.9    19.5    -      -       +      -
    401A  LEU*     5.2     1.1    -      -       +      -
    417A  TYR*     3.0    10.0    +      -       -      +
    418A  PHE*     3.2    35.7    -      -       +      -
    419A  ALA      3.1    22.3    +      -       -      -
    421A  ASN*     3.5    10.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 393 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360A  ILE      2.9     9.7    +      -       -      +
    361A  ARG*     3.2    22.2    -      -       +      +
    362A  HIS*     3.1    16.0    +      -       -      +
    391A  TYR*     4.1    23.9    -      -       +      +
    392A  VAL*     1.3    75.1    -      -       -      +
    394A  ASP*     1.4    81.8    +      -       +      +
    395A  ASN*     3.5     4.3    +      -       -      +
    417A  TYR*     4.5    10.1    -      -       +      +
    419A  ALA*     3.0    27.4    -      -       +      +
    420A  PHE*     3.5    26.2    -      -       +      -
    500A  SO4      4.4    16.2    -      -       -      +
----------------------------------------------------------
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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