Contacts of the helix formed by residues 176 - 192 (chain J) in PDB entry 6FGA


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 ASN 176 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172J  GLN*     2.8    27.4    +      -       +      +
    175J  THR*     1.3    77.0    -      -       +      +
    177J  ARG*     1.3    62.9    +      -       -      +
    178J  ALA*     4.0     7.4    +      -       -      +
    179J  GLU*     3.3    31.7    +      -       +      +
    180J  HIS*     3.1    17.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 177 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90J  VAL*     5.7     0.2    -      -       -      +
    158J  ASP*     5.8     1.2    +      -       -      -
    172J  GLN      3.6     1.1    +      -       -      -
    173J  TYR*     3.0    71.3    +      -       -      +
    174J  MET      5.5     1.8    -      -       -      +
    175J  THR      3.8     3.0    +      -       -      -
    176J  ASN*     1.3    73.5    +      -       -      +
    178J  ALA*     1.3    57.3    +      -       -      +
    180J  HIS*     3.4     2.3    +      -       -      +
    181J  ASP*     2.7    78.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 178 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176J  ASN*     3.3     7.3    +      -       -      +
    177J  ARG*     1.3    78.5    -      -       -      +
    179J  GLU*     1.3    59.2    +      -       -      +
    181J  ASP*     3.5     6.8    +      -       -      +
    182J  ARG*     3.0    28.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 179 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172J  GLN*     3.5    19.1    -      -       -      +
    176J  ASN*     3.3    31.7    +      -       +      +
    177J  ARG      3.3     0.8    -      -       -      -
    178J  ALA*     1.3    76.0    -      -       -      +
    180J  HIS*     1.3    65.2    +      -       -      +
    182J  ARG*     2.8    42.5    +      -       -      +
    183J  MET*     3.1    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 180 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90J  VAL*     5.4     3.4    -      -       +      -
     91J  TYR*     4.7     9.8    +      -       -      -
    120J  TYR*     3.8    10.8    +      +       -      -
    121J  HIS*     5.7     0.2    -      -       -      -
    122J  CYS*     5.0     3.6    +      -       -      -
    159J  CYS*     5.3     4.9    -      -       -      -
    169J  ILE*     3.3    46.3    +      -       +      +
    172J  GLN*     3.4    19.9    -      -       +      +
    173J  TYR*     3.7    34.7    -      +       +      +
    176J  ASN      3.1    13.4    +      -       -      +
    177J  ARG      3.5     8.3    -      -       -      +
    178J  ALA      3.3     0.2    -      -       -      -
    179J  GLU*     1.3    75.8    -      -       -      +
    181J  ASP*     1.3    65.8    +      -       -      +
    183J  MET*     3.1     5.5    +      -       -      +
    184J  ALA*     2.8    47.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 181 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90J  VAL*     3.7    27.8    -      -       +      +
    177J  ARG*     2.7    51.7    +      -       -      +
    178J  ALA*     3.8     5.6    -      -       -      +
    180J  HIS*     1.3    87.0    +      -       -      +
    182J  ARG*     1.3    60.1    +      -       -      +
    184J  ALA*     3.6     0.6    +      -       -      -
    185J  ARG*     3.2    44.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 182 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178J  ALA      3.0    18.9    +      -       -      +
    179J  GLU*     2.8    36.5    +      -       -      +
    180J  HIS      3.2     0.2    -      -       -      -
    181J  ASP*     1.3    76.4    -      -       -      +
    183J  MET*     1.3    83.1    +      -       -      +
    185J  ARG*     3.2    10.2    +      -       -      +
    186J  GLN*     3.1    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 183 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120J  TYR*     3.2    38.1    -      -       +      +
    172J  GLN*     3.4    26.9    -      -       -      -
    179J  GLU*     3.1    19.5    +      -       -      +
    180J  HIS      3.1     3.3    +      -       -      +
    182J  ARG*     1.3    99.7    -      -       -      +
    184J  ALA*     1.3    57.3    +      -       -      +
    186J  GLN*     3.4     9.2    +      -       -      +
    187J  TRP*     3.2    43.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 184 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90J  VAL*     3.4    28.7    -      -       +      -
     91J  TYR*     4.4     3.1    -      -       +      -
    120J  TYR*     3.8    30.2    -      -       +      +
    180J  HIS*     2.8    22.0    +      -       +      +
    181J  ASP*     3.8     5.4    -      -       -      +
    182J  ARG      3.2     0.2    -      -       -      -
    183J  MET*     1.3    75.5    -      -       -      +
    185J  ARG*     1.3    52.1    +      -       -      +
    187J  TRP*     3.9     2.6    +      -       -      +
    188J  THR*     2.7    35.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 185 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88J  GLY      4.7     6.1    +      -       -      -
     89J  SER      4.4     7.7    +      -       -      -
     90J  VAL*     3.5    39.9    +      -       +      +
    181J  ASP*     3.2    41.9    +      -       -      +
    182J  ARG*     3.2     7.5    +      -       -      +
    184J  ALA*     1.3    74.8    -      -       -      +
    186J  GLN*     1.3    59.4    +      -       -      +
    188J  THR*     3.4     3.3    +      -       -      +
    189J  LYS*     3.0    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 186 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182J  ARG*     3.1    50.3    +      -       -      +
    183J  MET*     3.6    12.1    -      -       -      +
    184J  ALA      3.4     0.4    -      -       -      -
    185J  ARG*     1.3    77.1    -      -       -      +
    187J  TRP*     1.3    62.6    +      -       +      +
    189J  LYS*     3.5     5.6    +      -       -      +
    190J  ARG*     3.1    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 187 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118J  ARG*     4.3    30.0    -      -       -      +
    119J  ILE*     3.7    19.7    -      -       -      -
    120J  TYR*     3.7    54.4    -      +       +      +
    126J  SER*     6.1     5.2    -      -       -      -
    183J  MET*     3.2    31.5    +      -       +      +
    184J  ALA      4.0     2.0    -      -       -      +
    185J  ARG      3.4     0.2    -      -       -      -
    186J  GLN*     1.3    81.6    -      -       +      +
    188J  THR*     1.3    60.2    +      -       -      +
    190J  ARG*     4.7     0.2    -      -       -      -
    191J  TYR*     2.9    67.4    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 188 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90J  VAL      3.6     6.6    +      -       -      +
     91J  TYR*     3.5    45.6    -      -       -      +
     92J  GLU      3.8    13.0    -      -       -      +
     93J  GLY      4.7     0.7    -      -       -      -
     94J  GLY*     3.9    13.2    -      -       -      +
     96J  PHE*     4.3     4.6    -      -       +      -
    118J  ARG      6.0     0.2    -      -       -      -
    119J  ILE*     5.7     0.2    -      -       -      +
    184J  ALA      2.7    21.7    +      -       -      -
    185J  ARG*     3.5     6.5    -      -       -      +
    186J  GLN      3.3     0.2    -      -       -      -
    187J  TRP*     1.3    77.7    -      -       -      +
    189J  LYS*     1.3    58.2    +      -       -      +
    192J  ALA*     3.0    37.3    +      -       +      +
    193J  THR*     3.5     5.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 189 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185J  ARG      3.0    17.0    +      -       -      +
    186J  GLN*     3.9     6.7    -      -       -      +
    187J  TRP      3.4     0.2    -      -       -      -
    188J  THR*     1.3    77.3    -      -       -      +
    190J  ARG*     1.3    60.8    +      -       -      +
    193J  THR*     3.4    32.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 190 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186J  GLN      3.1    17.8    +      -       -      +
    187J  TRP*     4.2     1.8    -      -       -      +
    188J  THR      3.4     0.2    -      -       -      -
    189J  LYS*     1.3    78.5    -      -       -      +
    191J  TYR*     1.3    88.9    +      -       +      +
    193J  THR      4.6     5.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 191 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117J  THR*     3.8    10.3    -      -       -      +
    118J  ARG*     3.8    52.8    +      -       +      +
    187J  TRP*     2.9    66.2    +      +       +      +
    190J  ARG*     1.3   102.2    -      -       +      +
    192J  ALA*     1.3    61.2    +      -       -      +
    193J  THR      3.5     5.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 192 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93J  GLY      4.4     0.9    -      -       -      +
     94J  GLY*     3.5    19.5    -      -       -      -
     95J  VAL*     2.9    39.9    +      -       -      +
     96J  PHE*     3.7    26.5    -      -       +      -
    117J  THR*     4.2     2.7    -      -       +      -
    118J  ARG      5.3     0.4    -      -       -      +
    187J  TRP      3.9     0.4    +      -       -      -
    188J  THR*     3.0    17.2    +      -       -      +
    191J  TYR*     1.3    76.4    -      -       +      +
    193J  THR*     1.3    62.3    +      -       -      +
----------------------------------------------------------
 Back to top of page


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