Contacts of the strand formed by residues 33 - 39 (chain A) in PDB entry 1JTO


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 CYS 33 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  PRO*     3.7     1.6    -      -       -      +
     32A  TYR*     1.3    87.6    -      -       -      +
     34A  MET*     1.3    68.3    +      -       -      +
     51A  ILE      3.6     2.2    -      -       -      -
     53A  MET*     4.5     1.3    -      -       -      -
     97A  ALA      4.4     0.2    -      -       -      -
     98A  ALA*     3.0     6.9    -      -       -      +
     99A  ASP*     2.9    42.1    +      -       +      -
    107A  TYR*     3.7    17.3    -      -       -      -
    109A  CYS*     2.0    52.3    -      -       +      -
    120A  TYR*     3.6    15.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  LEU*     4.4     4.7    -      -       +      -
     22A  CYS*     3.7    42.6    -      -       +      +
     24A  ALA*     4.3    15.9    -      -       +      +
     31A  PRO*     3.6    22.0    -      -       +      -
     33A  CYS*     1.3    79.8    -      -       -      +
     35A  GLY*     1.3    59.2    +      -       -      +
     50A  ALA*     3.4     1.4    -      -       -      +
     51A  ILE*     2.9    34.4    +      -       +      +
     53A  MET*     3.9    23.1    -      -       -      +
     70A  ILE*     4.1     1.3    -      -       -      +
     77A  ASN      4.3    10.5    -      -       -      +
     79A  VAL*     3.8    29.8    -      -       +      -
     96A  CYS*     3.9     7.9    -      -       -      -
     97A  ALA      3.2     6.1    -      -       -      -
     98A  ALA*     4.1     4.3    -      -       +      -
    120A  TYR*     4.3     3.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  MET*     1.3    76.6    -      -       -      +
     36A  TRP*     1.3    70.8    +      -       -      -
     37A  PHE*     4.9     3.6    -      -       -      -
     49A  ALA      2.9    15.3    -      -       -      -
     50A  ALA*     3.8     5.4    -      -       -      -
     70A  ILE*     4.5     1.6    -      -       -      -
     79A  VAL*     5.5     0.8    -      -       -      +
     96A  CYS*     3.5     6.8    -      -       -      -
     97A  ALA*     2.8    31.3    +      -       -      -
    113A  LEU*     5.2     1.1    -      -       -      -
    120A  TYR*     4.1     5.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  ALA*     4.4     9.2    -      -       +      -
      7A  SER      5.1     0.2    -      -       -      -
     20A  LEU*     3.7    37.7    -      -       +      -
     21A  SER*     3.5    28.5    -      -       -      -
     22A  CYS*     3.6    24.7    -      -       +      -
     35A  GLY*     1.3    79.7    +      -       -      -
     37A  PHE*     1.3    65.8    +      -       -      +
     47A  GLY      3.8     1.0    -      -       -      -
     48A  VAL*     2.9    31.6    +      -       +      -
     49A  ALA*     2.7    15.6    +      -       +      +
     70A  ILE*     4.1    16.1    -      -       +      +
     79A  VAL*     4.1    17.7    -      -       +      +
     81A  LEU*     3.6    41.4    -      -       +      +
     94A  TYR*     4.4    12.6    -      -       +      -
     95A  TYR      3.1    19.3    -      -       -      -
     96A  CYS*     3.8    14.8    -      -       +      -
    113A  LEU*     3.9     2.5    -      -       -      +
    127A  THR*     4.8     2.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  TRP*     1.3    78.7    -      -       -      +
     38A  ARG*     1.3    58.0    -      -       -      +
     45A  ARG*     4.1    18.2    -      -       +      -
     46A  GLU      3.3     9.0    -      -       -      +
     47A  GLY*     3.6    16.2    -      -       -      -
     48A  VAL*     4.5     1.3    -      -       -      -
     94A  TYR*     3.4     5.2    -      -       -      +
     95A  TYR*     2.6    36.6    +      -       +      +
     97A  ALA*     3.9    25.1    -      -       +      -
    113A  LEU*     3.5    42.2    -      -       +      -
    117A  GLY*     3.5    31.2    -      -       -      -
    120A  TYR*     4.1    16.4    -      +       -      -
    123A  TRP*     3.6    37.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  PHE*     1.3    77.5    -      -       -      +
     39A  GLN*     1.3    61.3    +      -       -      +
     40A  ALA*     4.1     2.1    +      -       +      +
     44A  GLU      4.2     1.0    -      -       -      +
     45A  ARG*     3.7     4.4    -      -       -      -
     46A  GLU*     2.8    62.1    +      -       +      +
     48A  VAL*     3.5    17.6    -      -       +      +
     63A  SER*     3.4    22.8    +      -       -      -
     64A  VAL*     4.0     8.9    -      -       -      +
     67A  ARG*     5.1     0.2    -      -       -      +
     68A  PHE*     4.4     6.1    -      -       -      -
     89A  GLU      4.9     5.3    +      -       -      -
     90A  ASP*     3.0    34.8    +      -       -      +
     92A  ALA*     4.2     9.2    -      -       +      -
     93A  ILE      3.0    10.1    -      -       -      +
     94A  TYR*     2.9    46.5    +      -       +      -
     95A  TYR*     4.6     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     1.3    75.1    -      -       -      +
     40A  ALA*     1.3    72.3    +      -       -      +
     41A  PRO*     4.8     0.3    -      -       -      +
     42A  GLY      5.6     0.2    -      -       -      +
     43A  LYS      2.9    29.9    +      -       -      -
     44A  GLU*     3.9     0.4    -      -       -      +
     45A  ARG*     3.7    28.4    +      -       +      +
     92A  ALA*     3.7     3.1    -      -       -      -
     93A  ILE*     2.7    39.8    +      -       +      +
     95A  TYR*     3.9    23.3    -      -       +      +
----------------------------------------------------------
 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