Contacts of the strand formed by residues 55 - 66 (chain A) in PDB entry 3Q2P


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 ILE 55 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  THR*     4.5     5.4    -      -       +      -
     46A  ILE      3.9     6.1    -      -       -      +
     47A  TYR*     4.1    21.5    -      -       +      +
     48A  GLU*     5.1     1.2    -      -       -      +
     53A  ARG*     4.0     8.0    +      -       +      +
     54A  GLU*     1.3    74.2    -      -       -      +
     56A  LYS*     1.3    60.6    +      -       -      +
     57A  GLY      3.7    13.9    -      -       -      +
     58A  TYR*     3.7    28.0    -      -       +      +
     79A  TYR*     3.3    58.5    -      -       +      +
     80A  LYS*     5.0     8.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  ILE*     3.0    39.8    +      -       +      +
     47A  TYR      4.3    11.0    +      -       -      +
     48A  GLU*     4.3    28.6    +      -       -      +
     49A  ASN*     5.9     2.2    -      -       -      +
     54A  GLU      3.5     2.0    +      -       -      -
     55A  ILE*     1.3    73.3    -      -       -      +
     57A  GLY*     1.3    59.9    +      -       -      +
     78A  ASP*     3.8    12.4    -      -       -      +
     79A  TYR*     3.1    19.6    +      -       -      +
     80A  LYS*     4.6     1.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  THR*     4.0     0.2    -      -       -      -
     46A  ILE*     3.1    31.7    +      -       -      +
     55A  ILE*     3.7     2.9    -      -       -      +
     56A  LYS*     1.3    81.2    -      -       -      +
     58A  TYR*     1.3    72.4    +      -       -      -
     77A  GLU      3.2    12.3    -      -       -      -
     78A  ASP*     4.4     0.2    -      -       -      -
     79A  TYR*     3.7    11.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  LYS*     3.6    31.6    -      -       -      -
     44A  LYS      3.3     8.3    -      -       -      +
     45A  THR*     3.4    36.8    -      -       +      -
     46A  ILE*     4.9     5.7    -      -       -      +
     55A  ILE*     3.7    15.5    -      -       +      +
     57A  GLY*     1.3    80.6    -      -       -      -
     59A  GLU*     1.3    64.6    +      -       -      +
     60A  TYR*     4.3    11.4    -      -       +      +
     76A  SER*     3.4     5.0    -      -       -      -
     77A  GLU*     2.7    61.1    +      -       +      +
     79A  TYR*     3.3    39.9    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  TRP*     4.1     8.6    -      -       +      -
     43A  LYS*     3.4     3.8    -      -       -      +
     44A  LYS*     2.7    58.9    +      -       +      +
     46A  ILE*     4.0    17.2    -      -       +      +
     58A  TYR*     1.3    78.3    -      -       -      +
     60A  TYR*     1.3    65.2    +      -       -      +
     74A  ASP*     5.0     7.3    -      -       +      +
     75A  ILE      3.2    15.3    -      -       -      +
     76A  SER*     3.9    11.0    -      -       -      -
     87A  LEU*     3.9    20.0    -      -       +      +
     88A  ARG*     5.0     5.4    +      -       -      -
     96B  PRO*     4.8    14.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  TRP*     4.9     0.4    -      -       -      -
      6A  ILE*     4.3     9.9    -      -       +      -
     11A  PHE*     3.5    12.6    -      +       -      -
     15A  LEU*     3.5    39.5    -      -       +      -
     42A  MET      3.2     6.3    -      -       -      -
     43A  LYS*     3.4    55.6    +      -       +      -
     58A  TYR*     4.3     7.7    -      -       +      +
     59A  GLU*     1.3    76.0    -      -       -      +
     61A  GLN*     1.3    63.4    +      -       -      +
     62A  LEU*     3.3    21.3    -      -       +      -
     73A  ALA      3.6     0.7    -      -       -      +
     74A  ASP*     3.1     8.3    -      -       -      +
     75A  ILE*     2.8    49.8    +      -       +      +
     77A  GLU*     3.0    38.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  TRP*     4.0    16.0    -      -       +      -
     40A  PRO      4.2     2.4    -      -       -      +
     41A  CYS*     3.7     3.1    -      -       -      -
     42A  MET*     3.0    59.1    +      -       +      +
     60A  TYR*     1.3    72.6    -      -       -      +
     62A  LEU*     1.3    63.5    +      -       -      +
     63A  TYR*     5.6     0.3    -      -       -      -
     72A  ARG*     3.2    31.0    +      -       -      +
     73A  ALA      3.4     4.5    -      -       -      -
     74A  ASP*     3.6    21.2    -      -       -      +
     42B  MET*     5.3     0.6    -      -       -      +
     63B  TYR*     2.8    22.0    +      -       -      -
     72B  ARG*     3.4    18.0    -      -       -      +
     96B  PRO*     4.3    10.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  ILE*     6.1     1.8    -      -       +      -
     12A  THR*     4.2    10.5    -      -       +      +
     15A  LEU*     3.7    29.2    -      -       +      -
     16A  ALA*     3.8    22.9    -      -       +      +
     19A  ALA*     5.5     0.7    -      -       +      -
     41A  CYS*     4.2    22.9    -      -       +      -
     42A  MET      4.4     2.2    -      -       -      +
     60A  TYR*     3.3    28.9    -      -       +      -
     61A  GLN*     1.3    82.7    -      -       -      +
     63A  TYR*     1.3    70.0    +      -       -      +
     64A  VAL*     5.3     1.3    -      -       +      -
     72A  ARG*     3.3     7.8    +      -       -      -
     73A  ALA*     2.8    45.6    +      -       +      +
     75A  ILE*     3.8    14.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ALA*     3.4     7.4    -      -       -      +
     38A  ILE*     3.1    47.8    +      -       +      +
     40A  PRO*     3.4    42.6    -      -       +      -
     41A  CYS*     4.2     5.5    -      -       -      -
     61A  GLN      5.6     0.7    -      -       -      -
     62A  LEU*     1.3    73.1    -      -       -      +
     64A  VAL*     1.3    60.9    +      -       -      +
     70A  LEU*     4.1    21.5    -      -       +      -
     71A  PHE      3.4     4.0    -      -       -      -
     72A  ARG*     3.5    35.9    -      -       +      +
     93A  VAL*     3.9    14.9    -      -       +      +
     94A  PRO      4.3     3.1    +      -       -      -
     96A  PRO*     3.9    19.7    -      -       +      +
     42B  MET*     5.9     1.8    -      -       +      -
     61B  GLN*     2.8    33.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  ALA*     3.9    24.5    -      -       +      +
     19A  ALA*     5.0     3.8    -      -       +      -
     20A  VAL*     3.9    21.8    -      -       +      -
     34A  PHE*     4.1     4.9    -      -       +      -
     36A  LYS      3.6     9.2    -      -       -      +
     62A  LEU*     4.7     2.9    -      -       +      +
     63A  TYR*     1.3    76.9    -      -       -      +
     65A  TYR*     1.3    74.0    +      -       -      +
     66A  ALA      3.7     0.9    +      -       -      -
     69A  LYS      3.6     1.4    -      -       -      +
     70A  LEU*     3.8     5.3    -      -       -      +
     71A  PHE*     2.8    46.8    +      -       +      +
     73A  ALA*     4.4    12.8    -      -       +      +
     89A  PHE*     4.1    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  ASN*     2.8    46.5    +      -       +      +
     36A  LYS*     3.0    33.7    +      -       +      +
     38A  ILE*     4.0    22.8    -      -       +      +
     64A  VAL*     1.3    76.0    -      -       -      +
     66A  ALA*     1.3    55.6    +      -       -      +
     68A  ASP*     4.0    12.3    -      -       -      -
     69A  LYS      3.3    22.0    -      -       -      -
     70A  LEU*     3.7    42.1    -      -       +      +
     95A  PRO*     4.9     9.9    -      -       -      +
     97A   NA      4.0     7.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  VAL*     3.9    24.7    -      -       +      -
     32A  LEU*     3.9    25.4    -      -       +      -
     33A  THR      3.2    13.7    -      -       -      +
     35A  ASN*     3.5     0.4    -      -       -      -
     64A  VAL      3.7     2.1    +      -       -      +
     65A  TYR*     1.3    74.9    -      -       -      +
     67A  SER*     1.3    71.9    +      -       -      +
     68A  ASP      3.0     1.1    -      -       -      -
     69A  LYS*     2.9    18.9    +      -       -      +
     71A  PHE*     3.7    13.5    -      -       +      -
     89A  PHE*     5.2     0.4    -      -       +      -
----------------------------------------------------------
 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