Contacts of the strand formed by residues 218 - 226 (chain I) in PDB entry 5DST


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 ARG 218 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349D  ARG*     5.6     1.6    -      -       -      +
    216I  PRO*     3.9     1.6    -      -       -      +
    217I  ASP*     1.3    82.5    -      -       -      +
    219I  ALA*     1.3    63.5    +      -       -      +
    220I  ALA*     3.8    25.8    -      -       -      +
    222I  TYR*     5.1     3.4    +      -       -      -
    277I  GLU*     3.4    31.1    +      -       -      +
    278I  VAL      3.4     8.5    -      -       -      +
    279I  ASP*     5.2     5.6    -      -       +      +
    280I  ILE*     4.6     3.3    -      -       -      +
    312I  ASN*     5.8     4.0    +      -       -      +
    313I  ILE*     3.6     5.7    -      -       -      +
    314I  GLU*     2.9    70.1    +      -       +      +
    316I  THR*     3.9    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 219 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186I  TRP*     4.3    15.0    -      -       +      -
    191I  LEU*     4.2    17.9    -      -       +      -
    218I  ARG*     1.3    80.1    +      -       -      +
    220I  ALA*     1.3    62.7    +      -       -      +
    276I  LYS      4.6     0.2    -      -       -      -
    277I  GLU*     3.7     2.9    -      -       -      +
    278I  VAL*     2.9    44.2    +      -       +      +
    280I  ILE*     4.9     0.6    -      -       +      +
    312I  ASN      3.3     6.5    -      -       -      +
    313I  ILE*     3.7    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 220 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191I  LEU*     4.6     2.0    -      -       -      +
    218I  ARG*     3.8    20.2    -      -       -      +
    219I  ALA*     1.3    77.3    -      -       -      +
    221I  LEU*     1.3    60.8    +      -       -      +
    222I  TYR*     3.6    26.9    -      -       +      +
    274I  LEU*     4.0    10.5    -      -       +      -
    276I  LYS      3.3     5.2    -      -       -      +
    277I  GLU*     4.8     1.6    -      -       +      -
    311I  PHE*     3.0     7.5    -      -       -      +
    312I  ASN*     2.9    40.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 221 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190I  CYS*     4.1    22.0    -      -       -      +
    191I  LEU*     4.1    28.2    -      -       +      +
    192I  PHE*     4.1    20.9    -      -       +      -
    220I  ALA*     1.3    74.1    -      -       -      +
    222I  TYR*     1.3    60.8    -      -       -      +
    274I  LEU*     3.7     3.8    -      -       -      +
    275I  ILE*     2.8    51.3    +      -       +      +
    276I  LYS*     2.9    23.5    +      -       +      +
    290I  PHE*     4.8     5.6    -      -       +      -
    309I  THR*     4.2    15.9    -      -       -      -
    310I  TYR      3.6    15.3    -      -       -      +
    311I  PHE*     4.1     3.8    -      -       +      -
    358I  ILE*     5.9     0.7    -      -       +      -
    360I  MET*     4.9     3.4    -      -       -      -
    372I  PHE*     6.2     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 222 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351D  GLY*     6.4     1.3    -      -       -      -
    218I  ARG*     5.1     3.5    +      -       -      -
    220I  ALA*     3.6    32.1    -      -       +      +
    221I  LEU*     1.3    74.5    -      -       -      +
    223I  VAL*     1.3    62.5    +      -       -      +
    272I  ALA*     4.4     4.0    -      -       +      -
    273I  CYS*     3.3    13.5    -      -       -      +
    274I  LEU*     3.5    40.0    -      -       +      +
    275I  ILE*     4.2     4.3    -      -       -      -
    309I  THR*     3.0    30.1    -      -       -      -
    310I  TYR*     2.9    55.2    +      +       +      +
    312I  ASN*     3.4    23.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 223 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222I  TYR*     1.3    73.2    -      -       -      +
    224I  VAL*     1.3    69.3    +      -       -      +
    272I  ALA*     3.4     2.9    -      -       -      +
    273I  CYS*     3.0    33.3    +      -       +      +
    275I  ILE*     3.5    31.6    -      -       +      -
    294I  PHE*     4.1    23.6    -      -       +      -
    296I  LEU*     3.5     9.0    -      -       +      +
    307I  LEU*     4.6    20.4    -      -       +      -
    308I  VAL      3.2     8.1    -      -       -      +
    309I  THR*     3.7    23.6    -      -       +      -
    310I  TYR*     5.1     0.4    -      -       -      -
    358I  ILE*     4.9     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 224 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223I  VAL*     1.3    81.7    -      -       -      +
    225I  ALA*     1.3    71.8    +      -       -      +
    226I  ILE*     4.0     6.1    -      -       +      -
    268I  VAL*     3.5    31.4    -      -       +      -
    270I  THR*     3.7     5.4    -      -       -      +
    271I  ASN      3.4    19.3    -      -       -      +
    272I  ALA*     3.7    13.9    -      -       +      -
    296I  LEU*     3.8     7.6    -      -       -      -
    307I  LEU*     3.4     3.3    -      -       -      +
    308I  VAL*     2.8    39.3    +      -       +      +
    310I  TYR*     4.2    15.3    -      -       +      -
    328I  PRO*     5.6     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 225 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224I  VAL*     1.3    76.5    -      -       -      +
    226I  ILE*     1.3    67.2    +      -       -      +
    268I  VAL*     3.8     0.3    -      -       -      +
    269I  VAL*     3.1    22.9    +      -       -      -
    270I  THR*     3.0    28.8    +      -       +      -
    296I  LEU*     3.6     6.4    -      -       +      +
    304I  VAL*     3.9    20.4    -      -       +      -
    306I  ALA      3.5    10.8    -      -       -      +
    307I  LEU*     3.9    12.8    -      -       +      -
    354I  ILE*     4.1     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 226 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224I  VAL*     4.0     3.6    -      -       +      -
    225I  ALA*     1.3    80.6    -      -       -      +
    227I  GLU*     1.3    60.6    +      -       -      +
    228I  ASP*     3.9    25.8    -      -       +      +
    263I  VAL*     4.0    23.3    -      -       +      -
    267I  GLN*     3.4    14.1    -      -       +      +
    268I  VAL*     3.9    24.2    -      -       +      -
    269I  VAL*     4.1     6.7    -      -       -      -
    304I  VAL*     3.4     4.8    -      -       -      -
    305I  HIS      2.9    23.0    +      -       -      -
    306I  ALA*     2.9    27.5    +      -       +      +
    308I  VAL*     3.6    34.8    -      -       +      -
    339I  VAL*     4.7     4.3    -      -       +      -
----------------------------------------------------------
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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