Contacts of the strand formed by residues 77 - 82 (chain D) in PDB entry 4R2G


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 GLN 77 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  THR*     3.6    34.7    +      -       +      +
     22D  CYS      3.0    12.3    -      -       -      +
     23D  ILE*     3.2    26.0    -      -       +      +
     24D  VAL*     4.6     0.4    -      -       -      -
     29D  ILE*     4.6     4.0    -      -       -      -
     71D  ARG*     4.0     4.0    -      -       -      +
     72D  ASP*     3.1    31.3    +      -       +      +
     75D  LYS*     3.4    38.8    +      -       +      +
     76D  ASN*     1.3    76.9    -      -       -      +
     78D  LEU*     1.3    61.2    +      -       -      +
     79D  SER*     4.3     5.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 78 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  THR*     3.1     3.7    -      -       -      -
     22D  CYS*     2.6    47.1    +      -       +      +
     24D  VAL*     5.7     0.7    -      -       +      -
     29D  ILE*     4.5    10.3    -      -       +      +
     34D  TRP*     3.3    39.0    -      -       +      +
     35D  THR      4.4     5.2    -      -       -      +
     36D  TRP*     3.4    29.1    -      -       +      +
     51D  ILE*     4.1    10.1    -      -       +      -
     69D  ILE*     3.7    20.4    -      -       +      -
     70D  SER      3.2    21.3    -      -       -      +
     71D  ARG*     4.6     7.9    -      -       +      -
     77D  GLN*     1.3    73.4    -      -       -      +
     79D  SER*     1.3    60.7    +      -       -      +
     92D  CYS*     4.5     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 79 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  LEU*     5.8     0.4    -      -       -      -
    200A  VAL*     5.5     1.4    -      -       -      +
     19D  SER*     3.8     1.7    +      -       -      -
     20D  VAL      3.1     6.5    +      -       -      -
     21D  THR*     3.0    23.4    -      -       -      +
     36D  TRP*     3.8     5.2    +      -       -      -
     68D  VAL      3.6     1.6    -      -       -      +
     69D  ILE*     3.6     6.6    -      -       -      +
     70D  SER*     3.1    44.3    +      -       -      -
     77D  GLN*     4.2     6.5    +      -       -      -
     78D  LEU*     1.3    74.6    -      -       -      +
     80D  LEU*     1.3    58.4    +      -       -      +
     81D  GLN*     3.1    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18D  LEU*     4.0     2.0    -      -       +      +
     19D  SER*     3.2     5.2    +      -       -      -
     20D  VAL*     2.7    49.2    +      -       +      +
     36D  TRP*     3.5    26.9    -      -       +      +
     48D  ILE*     3.6    35.7    -      -       +      -
     67D  ALA*     4.4    11.2    -      -       +      -
     68D  VAL      3.8     9.0    -      -       -      +
     69D  ILE*     4.0    14.1    -      -       +      -
     79D  SER*     1.3    72.9    -      -       -      +
     81D  GLN*     1.3    67.9    +      -       -      +
     82D  LEU*     4.8     6.1    -      -       +      -
     90D  TYR*     3.5    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  VAL*     3.6    24.7    -      -       +      -
    122A  LEU*     3.4    25.6    -      -       -      +
    200A  VAL*     3.5    20.4    -      -       -      +
    202A  THR*     4.6     1.3    -      -       +      -
    434A  MET*     5.9     0.4    -      -       -      -
     18D  LEU      3.4     3.1    -      -       -      +
     19D  SER*     2.9    33.7    +      -       -      +
     66D  ARG      3.6     0.5    -      -       -      +
     67D  ALA*     3.0     9.2    -      -       -      +
     68D  VAL*     3.0    56.8    +      -       +      +
     70D  SER*     4.2     4.2    +      -       -      -
     79D  SER*     3.1    23.7    +      -       -      +
     80D  LEU*     1.3    72.3    -      -       -      +
     82D  LEU*     1.3    62.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  THR*     3.6     3.3    -      -       -      +
     18D  LEU*     2.8    51.4    +      -       +      +
     38D  ARG*     4.1     5.4    -      -       -      +
     48D  ILE*     5.5     3.8    -      -       +      -
     63D  LEU*     4.4     9.4    -      -       +      -
     66D  ARG*     3.1    40.2    -      -       +      +
     67D  ALA*     3.5    24.7    -      -       +      -
     80D  LEU*     4.8     7.0    -      -       +      -
     81D  GLN*     1.3    74.7    -      -       -      +
     82D  ARG*     1.4    74.4    -      -       +      +
     86D  ASP*     3.9    11.7    -      -       +      +
     90D  TYR*     3.7    35.9    -      -       +      +
----------------------------------------------------------
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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