Contacts of the strand formed by residues 71 - 76 (chain A) in PDB entry 1II4


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 71 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  ALA*     3.2     5.4    -      -       -      +
     67A  GLU*     2.8    25.6    +      -       +      -
     68A  GLU*     2.9    27.5    +      -       +      +
     69A  ARG      2.9     8.6    +      -       -      +
     70A  GLY*     1.3    77.4    -      -       -      +
     72A  VAL*     1.3    66.0    +      -       -      +
    102A  PHE*     3.8    31.0    -      -       +      -
    103A  PHE      3.5     7.9    -      -       -      +
    104A  PHE*     3.5    37.2    -      -       +      -
    118A  ARG*     3.9    22.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  LEU*     3.9    22.4    -      -       +      -
     65A  GLN      3.0    14.4    -      -       -      +
     66A  ALA*     3.9     3.4    -      -       +      -
     67A  GLU      4.3     0.9    -      -       -      +
     70A  GLY      4.9     0.7    -      -       -      -
     71A  VAL*     1.3    83.2    -      -       -      +
     73A  SER*     1.3    63.2    +      -       -      +
     74A  ILE*     4.3     5.6    -      -       +      -
    101A  CYS      3.6     0.2    -      -       -      +
    102A  PHE*     3.3    10.8    -      -       -      -
    103A  PHE*     2.9    40.5    +      -       +      +
    105A  GLU*     4.0    11.0    -      -       +      +
    115A  TYR*     4.2    17.3    -      -       +      -
    285E  GLN*     3.6    35.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  GLN      3.6     1.6    +      -       -      +
     64A  LEU*     3.3     6.1    -      -       -      -
     65A  GLN*     2.9    38.4    +      -       -      +
     72A  VAL*     1.3    76.4    -      -       -      +
     74A  ILE*     1.3    64.4    +      -       -      +
     75A  LYS*     4.1     0.7    +      -       -      +
     82A  TYR*     4.1    17.3    -      -       -      -
    101A  CYS*     3.3    17.0    -      -       -      -
    102A  PHE*     4.1    16.4    -      -       -      -
    317E  VAL*     3.6    20.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  LEU*     4.6     9.0    -      -       +      -
     41A  LEU*     4.8     0.7    -      -       +      -
     43A  ILE*     4.1     4.3    -      -       +      +
     62A  LEU*     3.7    35.2    -      -       +      -
     63A  GLN      3.7     2.5    -      -       -      -
     64A  LEU*     3.5    23.1    -      -       +      -
     72A  VAL*     4.3     3.1    -      -       +      -
     73A  SER*     1.3    79.1    -      -       -      +
     75A  LYS*     1.3    58.2    +      -       -      +
     76A  GLY      4.0     0.7    +      -       -      -
     82A  TYR*     3.5     3.1    -      -       -      +
     83A  LEU*     2.7    67.3    +      -       +      +
    101A  CYS      4.3     3.2    +      -       -      -
    103A  PHE*     3.8    16.7    -      -       +      -
    115A  TYR*     4.1    26.7    -      -       +      -
    125A  VAL*     5.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  ILE*     4.3     1.1    -      -       -      -
     62A  LEU*     3.3     3.1    -      -       -      -
     63A  GLN*     2.8    52.8    +      -       +      +
     73A  SER*     4.1     0.6    -      -       -      +
     74A  ILE*     1.3    73.6    -      -       -      +
     76A  GLY*     1.3    70.1    +      -       -      +
     77A  VAL*     3.1     5.8    +      -       -      +
     80A  ASN*     3.0    42.1    +      -       -      +
     81A  ARG      3.3    15.3    -      -       -      +
     82A  TYR*     3.4    45.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  ILE*     3.6    23.0    -      -       -      +
     59A  HIS      5.4     1.8    -      -       -      -
     61A  LYS      4.0     0.4    -      -       -      -
     62A  LEU*     3.7    20.2    -      -       -      -
     75A  LYS*     1.3    71.5    -      -       -      +
     77A  VAL*     1.3    60.4    +      -       -      -
     78A  SER      3.4     2.5    -      -       -      -
     79A  ALA*     4.1     2.2    -      -       -      -
     80A  ASN*     2.8    31.3    +      -       -      -
     81A  ARG      2.8    13.7    +      -       -      -
----------------------------------------------------------
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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