Contacts of the strand formed by residues 21 - 28 (chain D) in PDB entry 5GAG


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 SER 21 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2729A    G      4.2     5.2    +      -       -      -
     13D  ARG*     3.1    39.1    +      -       -      +
     14D  ILE      3.5     4.7    +      -       -      -
     15D  PHE*     3.8    19.5    -      -       -      -
     20D  VAL*     1.3    75.9    -      -       -      +
     22D  ILE*     1.3    60.5    +      -       -      +
     23D  PRO*     3.2    12.3    -      -       -      +
     72L  PRO      3.2    15.0    +      -       -      +
     73L  ASP*     3.8    18.7    -      -       -      +
     74L  GLY*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 22 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2729A    G      5.1     0.7    -      -       -      +
     14D  ILE*     2.7    45.6    +      -       +      +
     16D  THR*     3.9    23.3    -      -       +      -
     20D  VAL*     4.6     7.0    -      -       +      +
     21D  SER*     1.3    75.8    -      -       -      +
     23D  PRO*     1.3    63.7    -      -       +      +
     24D  VAL*     3.4     8.2    -      -       +      +
    178D  VAL*     4.3    24.5    -      -       +      -
    190D  LYS*     3.6    48.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 23 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2682A    A      3.5    45.1    -      -       +      +
   2728A    U      4.1     5.2    -      -       -      +
   2729A    G      3.4    28.5    -      -       -      +
     11D  MET*     4.5     5.8    -      -       +      -
     12D  THR      3.6     9.2    -      -       -      +
     13D  ARG*     4.3     3.8    -      -       +      -
     21D  SER*     3.2    13.0    -      -       -      +
     22D  ILE*     1.3    85.7    -      -       +      +
     24D  VAL*     1.3    58.7    +      -       -      +
    190D  LYS*     3.4     6.8    -      -       +      +
    191D  GLY*     3.1    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 24 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11D  MET*     3.5    11.3    -      -       -      +
     12D  THR*     3.1    32.1    +      -       +      +
     14D  ILE*     3.6    26.9    -      -       +      +
     22D  ILE      3.4    18.4    -      -       -      +
     23D  PRO*     1.3    74.4    -      -       -      +
     25D  THR*     1.3    76.5    +      -       -      +
     26D  VAL*     4.2    11.4    -      -       +      -
    178D  VAL*     4.6    16.4    -      -       +      -
    188D  LEU*     4.0    15.5    -      -       +      -
    189D  VAL      3.2    17.7    -      -       -      +
    191D  GLY      4.2     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  LYS*     3.6    25.8    -      -       +      -
     10D  GLY      3.6    10.3    -      -       -      +
     11D  MET*     3.8    10.3    -      -       +      +
     24D  VAL*     1.3    76.9    +      -       -      +
     26D  VAL*     1.3    68.5    +      -       -      +
     27D  ILE*     3.9     2.9    -      -       +      -
    187D  LEU      3.5     0.5    -      -       -      +
    188D  LEU*     3.4     4.7    -      -       -      -
    189D  VAL*     2.9    37.3    +      -       -      +
    191D  GLY      3.2    17.5    +      -       -      -
    193D  VAL*     3.5    42.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  LYS*     3.9     2.4    -      -       -      -
      9D  VAL*     2.9    41.7    +      -       +      +
     10D  GLY      2.9    20.0    +      -       -      +
     12D  THR*     3.6    25.6    -      -       +      -
     24D  VAL*     4.2     1.8    -      -       +      -
     25D  THR*     1.3    74.1    -      -       -      +
     27D  ILE*     1.3    59.2    +      -       -      +
    186D  LEU*     3.6    24.9    -      -       +      -
    188D  LEU*     3.5    30.1    -      -       +      -
      4Q  ILE*     4.4     4.7    -      -       +      -
      5Q  ILE*     4.2     7.2    -      -       +      -
      8Q  LEU*     4.3    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6D  GLY*     4.1    11.7    -      -       -      -
      7D  LYS      3.8    22.0    -      -       -      +
      8D  LYS*     5.2     0.4    -      -       -      -
     25D  THR*     4.6     5.4    -      -       +      +
     26D  VAL*     1.3    74.5    -      -       -      +
     28D  GLU*     1.3    64.8    +      -       -      +
     29D  VAL*     3.6     8.9    +      -       +      -
    109D  VAL*     4.3    11.7    -      -       +      -
    186D  LEU*     3.7     4.4    -      -       -      -
    187D  LEU*     2.9    46.1    +      -       +      +
    189D  VAL*     4.1    25.8    -      -       +      -
    193D  VAL*     4.8     1.1    -      -       +      -
    201D  LEU*     3.6    30.5    -      -       +      -
    203D  VAL*     4.1    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6D  GLY*     3.1     4.5    -      -       -      -
      7D  LYS*     2.9    73.4    +      -       -      +
      9D  VAL*     3.7    11.3    -      -       +      +
     26D  VAL      3.9     1.4    +      -       -      -
     27D  ILE*     1.3    72.0    -      -       -      +
     29D  VAL*     1.3    64.8    +      -       -      +
     30D  GLU*     4.0    19.2    +      -       +      +
    184D  ARG      5.3     1.7    -      -       -      +
    185D  ASN*     3.6    15.5    -      -       +      +
    186D  LEU*     4.4     5.4    -      -       +      -
      4Q  ILE*     3.1    30.4    -      -       +      +
----------------------------------------------------------
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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