Contacts of the strand formed by residues 1238 - 1243 (chain B) in PDB entry 1FO4


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 GLU1238 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553B  PRO      5.2     2.0    -      -       -      +
    555B  ALA*     3.1    29.7    -      -       +      +
   1174B  LEU      3.1     9.5    +      -       -      +
   1175B  ARG*     3.2    43.2    +      -       +      +
   1176B  THR      2.9    29.0    +      -       -      +
   1236B  PRO*     3.7     3.3    -      -       -      +
   1237B  THR*     1.3    82.4    -      -       +      +
   1239B  PHE*     1.3    58.2    +      -       -      +
   1240B  ARG*     4.1    12.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with PHE1239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  GLY      4.5     3.1    -      -       -      -
    154B  ARG*     3.9    24.0    -      -       +      -
    555B  ALA      3.0     7.7    +      -       -      -
    556B  ASN*     3.3    35.8    +      -       -      +
    557B  ILE      3.3     3.3    +      -       -      +
    558B  GLN*     4.7     1.9    +      -       -      -
   1176B  THR*     3.7     9.0    -      -       +      -
   1178B  ILE*     4.0    22.4    -      -       +      -
   1196B  GLU*     4.0    35.2    -      -       +      -
   1199B  PHE*     3.8    23.8    -      +       +      -
   1200B  VAL*     4.4    13.0    -      -       +      -
   1235B  ILE*     4.6     5.6    -      -       +      -
   1236B  PRO*     3.6    34.1    -      -       +      +
   1238B  GLU*     1.3    72.9    -      -       -      +
   1240B  ARG*     1.3    65.3    +      -       -      +
   1241B  VAL*     4.1    10.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555B  ALA*     5.0     5.6    +      -       -      +
    557B  ILE*     3.2    40.4    -      -       +      +
    974B  SER*     3.5    13.9    +      -       -      +
    976B  GLN*     5.7     0.8    +      -       -      -
   1175B  ARG*     3.1    31.8    -      -       -      +
   1176B  THR      3.0     9.7    +      -       -      +
   1177B  ASP*     3.1    26.6    -      -       +      +
   1178B  ILE*     2.9    26.9    +      -       -      +
   1238B  GLU*     4.6    11.0    +      -       +      -
   1239B  PHE*     1.3    79.7    -      -       -      +
   1241B  VAL*     1.3    66.7    +      -       -      +
   1242B  SER*     5.2     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    557B  ILE      3.0     8.3    +      -       -      +
    558B  GLN*     3.2     6.6    -      -       +      +
    559B  LEU      2.8    23.7    +      -       -      +
   1178B  ILE*     3.5     9.0    -      -       +      +
   1180B  MET*     5.6     0.4    -      -       +      -
   1192B  ILE*     4.3    26.6    -      -       +      +
   1195B  VAL*     3.7    33.4    -      -       +      -
   1196B  GLU*     3.8    32.3    -      -       +      +
   1239B  PHE*     4.1    15.0    -      -       +      +
   1240B  ARG*     1.3    79.7    -      -       -      +
   1242B  SER*     1.3    71.0    +      -       -      +
   1243B  LEU*     4.9     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559B  LEU*     3.2    33.8    -      -       -      +
    970B  GLU*     5.1     6.1    -      -       -      -
    974B  SER*     5.4     5.0    +      -       -      -
   1178B  ILE      2.8    15.2    +      -       -      -
   1179B  VAL*     3.4    15.7    -      -       -      +
   1180B  MET*     2.9    26.9    +      -       -      +
   1240B  ARG*     5.2     2.6    -      -       -      +
   1241B  VAL*     1.3    80.4    +      -       -      +
   1243B  LEU*     1.3    68.9    +      -       -      +
   1244B  LEU      3.7     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559B  LEU      2.8    14.2    +      -       -      +
    560B  PHE*     4.2    11.8    -      -       +      -
    561B  GLN      5.0     2.4    +      -       -      +
   1180B  MET*     3.4    16.6    -      -       +      +
   1182B  VAL*     3.9    33.7    -      -       +      -
   1183B  GLY      5.9     0.7    -      -       -      +
   1185B  SER*     4.1     7.2    -      -       -      +
   1188B  PRO*     3.9    28.7    -      -       +      -
   1191B  ASP*     4.3     2.9    -      -       +      -
   1192B  ILE*     3.7    36.8    -      -       +      +
   1195B  VAL*     4.7     7.0    -      -       +      -
   1241B  VAL*     4.9     1.6    -      -       +      -
   1242B  SER*     1.3    80.4    -      -       -      +
   1244B  LEU*     1.3    69.4    +      -       -      +
   1245B  ARG*     3.2    11.1    +      -       -      +
   4008B  GOL      5.9     0.2    -      -       -      +
----------------------------------------------------------
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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