Contacts of the strand formed by residues 71 - 75 (chain L) in PDB entry 1CL7


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 PHE 71 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4L  MET*     5.5     0.4    -      -       +      -
     22L  SER*     3.7     2.1    -      -       -      -
     23L  CYS*     3.1    38.1    +      -       +      +
     27L  ILE*     3.4    19.3    -      -       -      -
     31L  THR*     3.3    17.0    -      -       +      -
     33L  LEU*     3.1    41.5    -      -       +      -
     35L  TRP*     4.8     1.6    -      -       -      +
     51L  VAL*     3.3    26.0    -      -       +      -
     65L  SER      3.6    12.3    -      -       -      +
     66L  GLY*     3.7     7.2    -      -       -      -
     67L  SER*     3.8    11.7    -      -       -      -
     68L  GLY      2.9    26.7    -      -       -      -
     69L  THR*     3.0    36.3    -      -       -      -
     70L  ASP*     1.3    73.1    -      -       -      +
     72L  THR*     1.3    65.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 72 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20L  SER*     4.1     9.6    -      -       -      -
     21L  ILE      3.2    21.3    -      -       -      +
     22L  SER*     3.9    10.1    -      -       -      -
     35L  TRP*     4.4     3.8    -      -       -      -
     63L  SER      3.6     0.2    -      -       -      +
     65L  SER*     2.8    48.8    +      -       -      -
     71L  PHE*     1.3    80.5    +      -       -      +
     73L  LEU*     1.3    67.6    +      -       -      +
     74L  LYS*     3.6    24.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 73 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21L  ILE*     3.0    34.0    +      -       +      +
     35L  TRP*     3.4    55.1    -      -       +      +
     47L  LEU*     5.2     1.6    -      -       +      -
     48L  ILE*     3.8    17.5    -      -       +      -
     62L  PHE*     4.6    12.3    -      -       +      -
     63L  SER      3.1    25.6    -      -       -      +
     64L  GLY      3.7     2.7    -      -       -      +
     72L  THR*     1.3    77.4    -      -       -      +
     74L  LYS*     1.3    75.9    +      -       -      +
     75L  ILE*     3.8    26.5    -      -       +      -
     86L  TYR*     4.7    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 74 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18L  GLN*     3.9    15.8    -      -       -      +
     19L  ALA      3.2    13.0    -      -       -      +
     20L  SER*     3.5    17.3    +      -       -      +
     61L  ARG      2.9    20.7    -      -       -      +
     63L  SER*     2.7    39.3    +      -       -      +
     65L  SER*     3.4    22.1    +      -       -      +
     72L  THR*     3.6    23.6    -      -       +      +
     73L  LEU*     1.3    77.2    -      -       -      +
     75L  ILE*     1.3    57.0    +      -       -      +
     76L  SER*     5.3     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 75 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18L  GLN*     2.8    28.0    -      -       -      +
     19L  ALA*     2.9    26.6    +      -       +      +
     21L  ILE*     4.5    10.8    -      -       +      -
     61L  ARG*     3.3    25.8    -      -       +      +
     62L  PHE*     4.1    22.7    -      -       +      -
     73L  LEU*     3.8    18.8    -      -       +      -
     74L  LYS*     1.3    76.1    -      -       -      +
     76L  SER*     1.3    62.1    +      -       -      +
     78L  VAL*     3.8    26.2    -      -       +      +
     82L  ASP*     3.4    22.2    -      -       +      +
     86L  TYR*     4.5    16.8    -      -       +      +
    104L  LEU*     5.4     2.9    -      -       +      -
----------------------------------------------------------
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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