Contacts of the strand formed by residues 219 - 224 (chain F) in PDB entry 4GK1


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 219 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214F  ALA*     4.4     0.9    -      -       -      +
    215F  SER      4.2    12.8    +      -       -      -
    218F  GLY*     1.3    75.4    -      -       -      -
    220F  TRP*     1.3    63.5    +      -       -      +
    221F  ILE*     3.5     0.3    +      -       -      +
    261F  MET*     3.3     0.9    -      -       -      -
    262F  MET*     2.8    49.8    +      -       -      +
    277F  LEU*     4.1     6.9    -      -       -      +
    279F  ALA*     3.1    29.1    -      -       -      +
    280F  TRP*     3.4     7.9    -      -       -      -
    281F  VAL*     4.1    14.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 220 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182F  LYS*     2.9    27.4    +      -       +      -
    184F  TRP*     3.4    32.4    -      +       +      +
    187F  ALA*     3.8    29.4    -      -       +      -
    198F  LEU*     4.0     5.0    -      -       +      +
    219F  SER*     1.3    73.3    -      -       -      +
    221F  ILE*     1.3    61.8    +      -       -      +
    259F  CYS*     3.8    31.0    -      -       +      -
    260F  VAL      3.4    19.3    -      -       -      -
    261F  MET*     4.0     6.7    -      -       +      -
    271F  ALA*     3.9    11.0    -      -       +      -
    272F  PHE      3.5    20.9    -      -       -      -
    273F  CYS      4.0     8.7    -      -       -      -
    275F  ARG*     3.2    22.7    -      -       +      -
    277F  LEU*     3.3    32.9    -      -       +      +
    279F  ALA      3.1    13.2    +      -       -      -
    280F  TRP*     3.6     2.9    -      -       +      -
    281F  VAL      3.1    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 221 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184F  TRP*     2.9    23.8    +      -       -      -
    198F  LEU*     4.1     6.1    -      -       -      -
    199F  VAL*     3.6    27.4    -      -       +      +
    201F  ILE*     4.2     4.0    -      -       +      -
    219F  SER      3.5     0.6    +      -       -      +
    220F  TRP*     1.3    79.0    -      -       -      +
    222F  GLY*     1.3    59.2    +      -       -      +
    223F  LEU      3.1     5.1    +      -       -      +
    234F  TRP*     3.8    25.8    -      -       +      -
    260F  VAL*     3.2    44.2    +      -       +      +
    261F  MET*     4.6     0.7    -      -       -      +
    262F  MET*     4.0    33.7    -      -       +      -
    268F  TRP*     4.2    21.1    -      -       +      +
    281F  VAL*     4.8     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 222 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184F  TRP*     4.5     1.6    -      -       -      -
    198F  LEU*     3.4    25.0    -      -       -      +
    199F  VAL      2.8    21.1    +      -       -      -
    221F  ILE*     1.3    68.7    -      -       -      +
    223F  LEU*     1.3    56.3    +      -       -      +
    234F  TRP*     3.2    10.7    -      -       -      -
    235F  VAL*     2.7    43.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 223 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184F  TRP*     4.1     1.4    +      -       -      -
    221F  ILE*     3.1     6.5    +      -       +      +
    222F  GLY*     1.3    76.7    -      -       -      +
    224F  ARG*     1.3    63.9    +      -       -      +
    232F  PHE*     3.7    10.8    -      -       +      -
    233F  ILE      3.4    35.2    -      -       -      +
    234F  TRP*     3.4    25.4    -      -       +      +
    240F  VAL*     3.7    18.6    -      -       +      -
    245F  TRP*     4.1     8.1    -      -       +      -
    259F  CYS*     3.9     0.3    -      -       -      -
    260F  VAL*     3.0    51.8    +      -       +      +
    268F  TRP*     3.9    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 224 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184F  TRP*     3.6    34.5    -      -       +      -
    188F  ARG*     3.8    20.6    -      -       -      +
    223F  LEU*     1.3    79.1    -      -       -      +
    225F  ASN*     1.3    61.6    +      -       -      +
    226F  LEU*     3.5    21.0    +      -       +      +
    228F  LEU*     3.4    24.7    -      -       +      +
    232F  PHE*     3.7     8.5    -      -       -      -
    233F  ILE*     2.8    57.1    +      -       -      +
    234F  TRP      3.2    21.4    +      -       -      -
    235F  VAL*     3.5    13.3    +      -       -      +
    258F  ASP      3.1    15.5    -      -       -      +
    259F  CYS*     4.2     7.2    -      -       -      -
----------------------------------------------------------
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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