Contacts of the strand formed by residues 238 - 244 (chain 4) in PDB entry 1G6Q


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 LYS 238 (chain 4).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2364  ALA      4.1     1.2    +      -       -      +
    2374  PHE*     1.3    75.5    -      -       -      +
    2394  SER*     1.4    59.6    +      -       -      +
    3064  GLU*     4.5    26.9    +      -       +      +
    3074  LEU      3.9     2.5    -      -       -      -
    3084  VAL*     3.9    30.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 239 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2224  LEU*     2.9    49.5    +      -       -      +
    2234  ILE*     3.7     8.0    -      -       -      +
    2374  PHE*     3.4    22.0    -      -       -      +
    2384  LYS*     1.4    73.5    +      -       -      +
    2404  ASN*     1.3    63.7    +      -       -      +
    3064  GLU*     3.4     3.2    -      -       -      -
    3074  LEU      2.9    39.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 240 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2204  ASP*     4.2     3.1    -      -       -      +
    2214  LYS      4.8     6.9    -      -       -      +
    2224  LEU*     4.8     2.9    -      -       -      +
    2394  SER*     1.3    75.6    -      -       -      +
    2414  PHE*     1.3    59.2    +      -       -      +
    2424  LYS*     3.6    23.8    +      -       -      +
    3044  GLU*     5.4     1.0    -      -       -      +
    3054  GLY*     2.7    27.3    +      -       -      +
    3064  GLU*     3.5    27.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 241 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1704  LEU*     3.9    37.2    -      -       +      -
    2204  ASP*     3.2    13.7    -      -       -      +
    2224  LEU*     3.7    20.2    -      -       +      -
    2404  ASN*     1.3    74.1    -      -       -      +
    2424  LYS*     1.3    77.8    +      -       -      +
    2434  LEU*     4.0    16.2    -      -       +      -
    2544  ILE*     4.4     4.5    -      -       +      -
    3034  ILE*     3.5    28.3    -      -       +      -
    3044  GLU*     3.5     1.0    -      -       -      -
    3054  GLY*     2.8    46.8    +      -       -      -
    3064  GLU      3.4    19.5    -      -       -      -
    3074  LEU*     3.6    20.6    -      -       +      -
    3234  ILE*     4.2    17.7    -      -       +      -
    3244  SER      4.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 242 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2184  THR*     4.1     4.9    +      -       -      -
    2204  ASP*     3.0    29.6    +      -       -      +
    2404  ASN*     3.6    25.6    -      -       -      +
    2414  PHE*     1.3   104.1    +      -       -      +
    2434  LEU*     1.3    66.0    +      -       -      +
    2444  THR*     5.6     0.4    -      -       -      +
    3034  ILE      3.4     5.4    -      -       -      +
    3044  GLU*     4.3    23.5    +      -       +      +
    3054  GLY      5.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 243 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1704  LEU*     3.6    12.3    -      -       +      +
    1714  ALA*     3.9     5.2    -      -       -      -
    1724  GLY*     3.7    24.0    -      -       -      +
    2174  THR*     3.7    11.0    -      -       -      +
    2184  THR*     3.0    22.2    -      -       -      +
    2204  ASP*     3.5    27.1    -      -       +      +
    2414  PHE*     4.0    13.2    -      -       +      -
    2424  LYS*     1.3    81.0    -      -       -      +
    2444  THR*     1.3    62.8    +      -       -      +
    2544  ILE*     4.0    17.7    -      -       +      -
    3014  ASP      3.9     0.2    -      -       -      +
    3024  THR*     3.5     3.8    -      -       -      -
    3034  ILE*     2.8    59.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 244 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2174  THR*     3.3     3.3    -      -       -      -
    2184  THR*     2.8    46.2    +      -       +      +
    2424  LYS      5.6     0.2    -      -       -      -
    2434  LEU*     1.3    75.0    +      -       -      +
    2454  ALA*     1.3    67.9    +      -       -      +
    2464  LYS      3.5     0.3    +      -       -      -
    3004  GLY*     3.6    28.0    -      -       -      +
    3014  ASP      3.5     2.9    -      -       -      -
    3024  THR*     3.9    11.8    -      -       +      +
----------------------------------------------------------
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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