Contacts of the strand formed by residues 43 - 52 (chain A) in PDB entry 4C33


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 PHE 43 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ALA*     3.9    10.1    -      -       +      -
     39A  HIS      3.4    22.7    -      -       -      -
     40A  LEU*     3.2    21.1    +      -       +      +
     41A  ASP*     3.3     2.3    -      -       -      -
     42A  GLN*     1.3    81.8    -      -       +      +
     44A  GLU*     1.3    60.8    +      -       -      +
     45A  ARG      4.2     0.7    +      -       -      -
     60A  VAL*     3.7    33.4    -      -       +      -
     61A  LYS      3.3     5.4    -      -       -      +
     62A  HIS*     3.4    40.8    -      +       +      -
     63A  MET*     3.7     9.8    -      -       -      +
     69A  TYR*     4.1     2.7    -      +       -      -
     71A  MET*     5.0     7.4    -      -       +      -
    108A  PHE*     3.9    19.5    -      +       -      -
    110A  PHE*     3.9    19.7    -      +       -      -
    119A  VAL*     4.0    23.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  PHE*     1.3    73.3    -      -       -      +
     45A  ARG*     1.3    70.0    +      -       -      +
     46A  ILE*     3.6    20.6    +      -       +      +
     60A  VAL*     3.2     7.6    -      -       -      -
     61A  LYS*     2.8    50.7    +      -       +      +
     63A  MET*     3.9    15.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  PHE      4.1     1.4    +      -       -      -
     44A  GLU*     1.3    77.5    -      -       -      +
     46A  ILE*     1.3    68.6    +      -       -      +
     47A  LYS      5.5     0.4    -      -       -      +
     48A  THR*     3.8     1.2    +      -       -      -
     56A  ARG*     4.6     0.2    -      -       -      +
     58A  MET*     3.6    35.1    -      -       +      +
     59A  LEU      4.2     2.7    -      -       -      -
     60A  VAL*     4.4     6.5    -      -       +      -
    332A  GLU*     2.8    33.9    +      -       -      +
    333A  GLU      2.7    40.8    +      -       -      +
    334A  GLU*     4.1     5.5    -      -       -      +
    335A  ILE*     3.9    26.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  GLU*     3.7    40.6    -      -       +      +
     45A  ARG*     1.3    80.5    -      -       -      +
     47A  LYS*     1.3    64.3    +      -       +      +
     59A  LEU*     2.9    45.4    +      -       +      +
     60A  VAL      4.1     2.7    -      -       -      -
     61A  LYS*     4.0    20.6    -      -       +      +
     68A  HIS*     4.5     7.9    -      -       +      +
    322A  GLY      5.1     2.2    -      -       -      +
    324A  THR*     5.4     1.1    -      -       +      -
    332A  GLU*     5.6     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  ILE*     1.3    87.9    -      -       +      +
     48A  THR*     1.3    69.6    +      -       -      +
     49A  LEU*     3.5     1.5    +      -       +      +
     58A  MET*     3.5     9.3    -      -       -      +
     59A  LEU*     2.7    34.7    +      -       +      +
    324A  THR*     3.4    38.8    +      -       +      +
    327A  PHE*     5.2     2.0    +      -       -      +
    328A  ASP      3.9     6.7    +      -       -      -
    329A  ASP*     2.8    42.3    +      -       -      +
    330A  TYR      4.7     1.4    +      -       -      +
    332A  GLU*     3.6    16.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ARG*     3.8     4.3    +      -       -      -
     47A  LYS*     1.3    82.2    +      -       -      +
     49A  LEU*     1.3    58.7    +      -       -      +
     50A  GLY      3.6    13.2    -      -       -      +
     51A  THR*     3.2    27.1    -      -       -      +
     56A  ARG*     4.9    10.1    -      -       +      -
     57A  VAL      3.7     7.0    -      -       -      +
     58A  MET*     3.4    14.5    -      -       -      +
    328A  ASP      4.3     4.3    -      -       -      +
    330A  TYR*     3.8    24.5    +      -       +      +
    331A  GLU      4.4     7.4    +      -       -      +
    332A  GLU*     2.7    36.6    +      -       -      +
    333A  GLU      4.9     0.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LYS*     4.7     1.8    -      -       +      +
     48A  THR*     1.3    74.2    -      -       -      +
     50A  GLY*     1.3    54.0    +      -       -      +
     57A  VAL*     2.7    29.3    +      -       +      +
     58A  MET      4.1     3.6    -      -       -      -
     59A  LEU*     3.6    32.3    -      -       +      +
     70A  ALA*     4.3     4.0    -      -       +      -
    122A  TYR*     3.6    29.4    -      -       +      +
    324A  THR*     3.8    28.9    -      -       +      -
    327A  PHE*     3.8    50.3    -      -       +      +
    330A  TYR*     3.1    19.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  THR*     3.5     3.2    -      -       -      +
     49A  LEU*     1.3    79.9    -      -       -      +
     51A  THR*     1.4    68.5    +      -       -      -
     55A  GLY      4.8     0.4    -      -       -      -
     56A  ARG*     3.3     1.9    -      -       -      -
     57A  VAL*     2.9    35.6    +      -       -      +
    330A  TYR*     3.8    12.9    -      -       -      -
     18I  ARG*     6.1     3.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  THR*     3.2    18.7    -      -       -      +
     50A  GLY*     1.4    79.5    +      -       -      -
     52A  GLY*     1.3    63.8    +      -       -      +
     55A  GLY      3.6     6.7    -      -       -      +
     56A  ARG*     3.7    20.9    -      -       +      +
    330A  TYR*     4.3    24.6    -      -       -      +
    331A  GLU      4.9     3.0    +      -       -      +
    333A  GLU*     4.2    15.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  THR*     1.3    79.3    -      -       -      +
     53A  SER*     1.4    65.6    +      -       -      -
     54A  TYR      3.2     3.6    -      -       -      -
     55A  GLY*     3.1    20.4    +      -       -      +
     20I  ASN*     5.8     4.5    -      -       -      -
----------------------------------------------------------
 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