Contacts of the strand formed by residues 1086 - 1090 (chain A) in PDB entry 7CN9


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 LYS1086 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1082A  CYS*     3.9     0.7    -      -       -      -
   1084A  ASP*     3.1    42.7    +      -       +      +
   1085A  GLY*     1.3    76.8    -      -       -      +
   1087A  ALA*     1.3    61.2    +      -       -      +
   1088A  HIS*     2.7    38.2    -      -       -      -
   1117A  THR*     5.6     2.2    +      -       -      -
   1122A  VAL*     3.2    38.8    -      -       +      +
   1124A  GLY      5.1     2.5    -      -       -      -
   1125A  ASN*     5.3     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA1087 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1080A  ALA*     5.2     1.3    -      -       +      -
   1081A  ILE      3.3     7.4    -      -       -      +
   1082A  CYS*     3.6    24.5    -      -       -      -
   1085A  GLY      3.7     2.4    +      -       -      -
   1086A  LYS*     1.3    71.4    -      -       -      +
   1088A  HIS*     1.3    60.1    +      -       -      +
   1089A  PHE*     3.2    39.2    +      -       +      -
   1122A  VAL*     3.9     3.5    -      -       -      -
   1123A  SER      3.9    10.9    +      -       -      -
   1124A  GLY      3.9    11.5    +      -       -      +
   1126A  CYS*     3.7    13.9    -      -       +      +
   1132A  ILE*     5.4     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS1088 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1080A  ALA*     4.2     0.7    -      -       -      -
   1081A  ILE*     2.9    24.4    +      -       +      +
   1083A  HIS*     3.8    11.8    -      -       +      +
   1084A  ASP*     4.0    10.4    +      -       -      -
   1086A  LYS*     2.7    48.8    +      -       -      -
   1087A  ALA*     1.3    68.3    -      -       -      +
   1089A  PHE*     1.3    60.7    +      -       -      +
   1095A  PHE*     3.4    17.5    -      -       -      -
   1115A  ILE*     5.1     2.0    -      -       +      +
   1117A  THR*     5.6     5.0    +      -       -      -
   1120A  THR*     3.3    24.7    -      -       +      +
   1121A  PHE      3.7     2.9    -      -       -      -
   1122A  VAL*     3.3    14.3    -      -       -      +
   1137A  VAL*     3.3    48.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1089 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1080A  ALA*     3.1    24.2    -      -       +      -
   1087A  ALA*     3.2    35.4    -      -       +      -
   1088A  HIS*     1.3    73.5    -      -       -      +
   1090A  PRO*     1.4    70.5    -      -       +      +
   1095A  PHE*     3.6     2.0    -      -       -      -
   1120A  THR*     2.1    36.6    +      -       -      -
   1121A  PHE*     3.3    26.1    +      +       +      +
   1123A  SER      2.7    34.5    -      -       -      -
   1124A  GLY*     3.8     2.7    -      -       -      -
   1129A  VAL*     3.8    25.4    -      -       +      -
    913B  GLN*     5.7     2.5    -      -       +      -
    914B  ASN*     4.7    17.3    -      -       +      -
    917B  TYR*     3.3    39.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO1090 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1079A  PRO      4.3     7.6    -      -       -      +
   1089A  PHE*     1.4    92.0    -      -       +      +
   1091A  ARG*     1.3    68.2    +      -       -      +
   1092A  GLU*     3.3     2.9    +      -       -      +
   1093A  GLY      3.6    32.7    +      -       -      +
   1094A  VAL*     4.2     8.1    -      -       +      +
   1095A  PHE*     3.4    34.5    -      -       +      -
   1104A  VAL*     5.1     4.3    -      -       +      -
   1119A  ASN      4.3     4.9    -      -       -      +
   1121A  PHE*     3.9     7.3    -      -       -      -
    900B  MET*     5.4     2.2    -      -       +      -
    913B  GLN*     4.8    17.9    +      -       -      +
    917B  TYR*     6.0     1.3    -      -       +      -
----------------------------------------------------------
 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