Contacts of the strand formed by residues 40 - 48 (chain F) in PDB entry 1I5L


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 LEU 40 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5E  PRO*     4.2     0.7    -      -       -      -
      9F  LEU*     4.3    15.9    -      -       +      -
     19F  VAL*     4.0    24.9    -      -       +      -
     31F  LEU*     4.4    13.2    -      -       +      -
     33F  GLY      3.5     5.2    -      -       -      +
     34F  TYR*     3.8    16.8    -      -       +      -
     38F  MET*     3.3    17.5    -      -       +      +
     39F  ASN*     1.3    91.6    -      -       -      +
     41F  VAL*     1.3    67.3    +      -       -      +
     42F  LEU*     5.0     3.1    -      -       +      -
     60F  VAL      3.6     0.5    -      -       -      +
     61F  VAL*     3.3     6.8    -      -       -      +
     62F  ILE*     2.9    41.4    +      -       +      +
     67F  VAL*     4.1    11.7    -      -       +      -
     70F  VAL*     3.8    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 41 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4E  ARG      4.4     1.8    -      -       -      -
      5E  PRO*     3.2    46.2    -      -       +      -
      8E  VAL*     3.6    32.3    -      -       +      -
     31F  LEU*     3.3    11.1    -      -       -      +
     32F  ASP*     3.0    33.8    +      -       +      +
     33F  GLY*     3.0    19.5    +      -       -      +
     40F  LEU*     1.3    74.1    -      -       -      +
     42F  LEU*     1.3    66.8    +      -       -      +
     43F  LEU*     5.4     2.2    -      -       +      -
     59F  SER*     5.3     3.6    -      -       -      -
     60F  VAL      3.2    10.1    -      -       -      +
     61F  VAL*     4.4     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 42 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17F  VAL*     3.8    26.7    -      -       +      -
     19F  VAL*     3.9    25.1    -      -       +      -
     27F  PHE*     4.1    16.6    -      -       +      -
     29F  GLY      4.6     5.2    -      -       -      +
     30F  THR      3.2    16.6    -      -       -      +
     31F  LEU*     3.8    10.3    -      -       +      -
     40F  LEU*     5.0     2.7    -      -       +      -
     41F  VAL*     1.3    86.3    -      -       -      +
     43F  LEU*     1.3    66.6    +      -       -      +
     45F  ALA*     4.4     9.3    -      -       +      +
     59F  SER*     2.8    26.1    -      -       -      -
     60F  VAL*     2.8    26.7    +      -       +      +
     62F  ILE*     3.9    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 43 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8E  VAL*     6.3     1.1    -      -       +      -
     11E  ARG*     5.4     9.9    -      -       -      +
     30F  THR*     3.0    37.0    +      -       +      +
     32F  ASP*     3.4    35.6    -      -       +      +
     41F  VAL*     5.4     3.1    -      -       +      -
     42F  LEU*     1.3    74.9    -      -       -      +
     44F  ASP*     1.3    79.9    -      -       -      +
     45F  ALA*     3.2     3.6    +      -       -      +
     58F  GLY      3.4     5.2    -      -       -      +
     59F  SER*     3.4    22.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 44 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28F  ARG      4.0     0.5    -      -       -      +
     29F  GLY*     3.7     9.7    -      -       -      -
     30F  THR*     4.3     5.6    +      -       -      +
     43F  LEU*     1.3    82.3    -      -       -      +
     45F  ALA*     1.3    57.3    +      -       -      +
     46F  GLU*     5.6     0.4    -      -       -      +
     57F  VAL      3.8     2.7    -      -       -      -
     58F  GLY*     2.6    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 45 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27F  PHE*     4.5    14.4    -      -       +      -
     28F  ARG      3.2    17.3    -      -       -      +
     29F  GLY*     3.8     6.1    -      -       -      +
     42F  LEU*     4.4    14.8    -      -       +      -
     43F  LEU      3.7     7.9    -      -       -      +
     44F  ASP*     1.3    75.4    -      -       -      +
     46F  GLU*     1.3    64.8    +      -       -      +
     56F  LYS*     3.3     3.5    -      -       -      +
     57F  VAL*     2.8    47.8    +      -       +      +
     60F  VAL*     4.8     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27F  PHE*     3.3     7.9    -      -       -      -
     28F  ARG*     3.1    47.5    +      -       -      +
     44F  ASP      5.6     0.7    -      -       -      +
     45F  ALA*     1.3    79.5    -      -       -      +
     47F  GLU*     1.3    65.9    +      -       -      +
     48F  ILE*     3.6     9.0    -      -       +      +
     53F  VAL*     3.6    30.3    -      -       +      +
     55F  ARG      3.0    14.1    -      -       -      +
     56F  LYS*     3.4    35.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 47 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20E  ARG*     4.8     1.0    +      -       -      -
     69E  PHE*     4.3    13.2    -      -       -      -
     25F  ARG*     2.5    51.3    +      -       +      +
     26F  GLU      3.5     4.3    -      -       -      +
     27F  PHE*     4.2    26.8    -      -       +      -
     46F  GLU*     1.3    72.8    -      -       -      +
     48F  ILE*     1.3    69.3    +      -       -      +
     49F  GLN*     4.3     2.0    -      -       +      +
     54F  VAL*     3.2    25.4    +      -       +      +
     55F  ARG*     3.1    51.0    +      -       +      +
     56F  LYS*     5.1     0.2    -      -       -      +
     57F  VAL*     5.3     1.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25F  ARG*     4.9     0.2    -      -       -      -
     26F  GLU*     2.5    48.5    +      -       +      +
     28F  ARG*     3.0    45.1    -      -       +      +
     46F  GLU*     3.6    16.4    -      -       +      +
     47F  GLU*     1.3    83.7    -      -       -      +
     49F  GLN*     1.3    62.1    +      -       -      +
     50F  ASN      3.2     9.4    -      -       -      +
     51F  GLY*     3.8     5.6    -      -       -      -
     52F  GLU      3.1    48.0    -      -       -      +
     53F  VAL*     4.4     3.1    -      -       +      -
     54F  VAL*     4.2     3.4    -      -       -      -
----------------------------------------------------------
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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