Contacts of the helix formed by residues 37 - 47 (chain A) in PDB entry 4BEJ


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 GLY 37 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLN      4.0     6.5    +      -       -      -
     35A  SER      3.1     6.3    -      -       -      -
     36A  SER*     1.3    79.6    -      -       -      +
     38A  LYS*     1.3    64.0    +      -       -      +
     39A  SER*     3.2     4.5    -      -       -      -
     40A  SER*     2.3    35.6    +      -       -      -
     41A  VAL*     3.2     7.9    +      -       -      +
    215A  THR*     5.5     0.4    -      -       -      -
    216A  LYS*     5.1     4.7    -      -       -      -
    246A  ASN*     4.1     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  VAL*     2.6    41.2    +      -       +      -
     31A  VAL*     3.5     1.0    -      -       -      +
     32A  GLY*     3.2    36.6    +      -       -      +
     33A  THR      4.4     6.1    -      -       -      +
     34A  GLN*     5.2     3.7    +      -       -      +
     36A  SER*     3.3     3.7    -      -       -      -
     37A  GLY*     1.3    75.4    -      -       -      +
     39A  SER*     1.3    71.1    +      -       -      +
     41A  VAL*     3.2    12.9    +      -       -      +
     42A  LEU*     3.2    26.9    +      -       -      +
    146A  ASP*     3.2    21.9    +      -       -      +
    147A  LEU      3.1    19.5    +      -       -      +
    148A  PRO      5.0     0.6    +      -       -      -
    149A  GLY*     4.9     5.6    -      -       -      +
    184A  VAL*     4.6    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  GLY*     3.2     1.7    -      -       -      -
     38A  LYS*     1.3    84.3    -      -       -      +
     40A  SER*     1.3    58.0    +      -       -      +
     42A  LEU*     3.2     3.5    +      -       -      +
     43A  GLU*     2.9    38.1    +      -       -      +
     51A  LEU*     3.3    42.1    -      -       -      +
     52A  PRO      4.8     1.7    +      -       -      -
     53A  ARG*     6.1     1.1    -      -       -      -
    146A  ASP*     5.6     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  GLY*     2.3    30.5    +      -       -      -
     39A  SER*     1.3    78.1    -      -       -      +
     41A  VAL*     1.3    54.1    +      -       -      +
     43A  GLU*     3.6    12.1    +      -       -      +
     44A  SER*     2.8    36.2    +      -       -      -
     53A  ARG*     5.8     3.6    -      -       -      +
    246A  ASN*     2.9    33.1    +      -       -      +
    247A  ARG*     4.0    17.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  VAL*     5.9     1.1    -      -       +      -
     37A  GLY      3.4    13.9    -      -       -      +
     38A  LYS*     3.3    15.5    -      -       +      +
     40A  SER*     1.3    77.1    +      -       -      +
     42A  LEU*     1.3    68.0    +      -       +      +
     44A  SER*     3.3     3.9    +      -       -      -
     45A  LEU*     3.2    29.7    +      -       +      +
    182A  LEU*     5.2     8.7    -      -       +      -
    184A  VAL*     4.1    13.7    -      -       +      -
    213A  VAL*     4.9     7.4    -      -       +      -
    215A  THR*     3.6    17.9    -      -       +      -
    244A  VAL*     5.0     1.8    -      -       +      -
    246A  ASN*     3.6    19.5    -      -       -      +
    285A  LEU*     4.4    22.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  VAL*     4.4    17.7    -      -       +      -
     38A  LYS      3.2    13.1    +      -       -      +
     39A  SER*     3.6     5.2    -      -       -      +
     41A  VAL*     1.3    84.1    -      -       +      +
     43A  GLU*     1.3    63.1    +      -       +      +
     45A  LEU*     3.1    19.7    +      -       +      +
     46A  VAL*     3.3    14.9    +      -       -      +
     51A  LEU*     3.7    20.2    -      -       +      -
     63A  LEU*     5.3     3.1    -      -       +      -
     65A  LEU*     4.5    23.9    -      -       +      +
    144A  LEU*     3.8    31.4    -      -       +      -
    146A  ASP*     3.5    39.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  SER*     2.9    24.4    +      -       -      +
     40A  SER*     3.8    10.2    -      -       -      +
     42A  LEU*     1.3    77.4    -      -       +      +
     44A  SER*     1.3    57.7    +      -       -      +
     46A  VAL*     3.2     9.1    -      -       -      +
     47A  GLY      3.0    22.2    +      -       -      -
     48A  ARG      3.5    17.3    +      -       -      +
     49A  ASP*     2.9    25.5    -      -       -      +
     50A  LEU*     3.2     3.9    +      -       +      +
     51A  LEU*     3.0    45.9    +      -       +      +
     53A  ARG*     3.1    24.1    +      -       -      -
    247A  ARG*     3.9     2.9    +      -       -      +
    258A  VAL*     3.6    11.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  SER      2.8    17.4    +      -       -      -
     41A  VAL*     3.8     4.9    -      -       -      -
     42A  LEU      3.2     0.4    -      -       -      -
     43A  GLU*     1.3    75.2    -      -       -      +
     45A  LEU*     1.3    65.0    +      -       -      +
     47A  GLY*     3.9     5.6    +      -       -      -
    245A  VAL      5.7     0.3    +      -       -      -
    246A  ASN*     4.1    14.3    +      -       -      +
    258A  VAL*     3.9    10.1    -      -       -      -
    262A  ILE*     3.3    23.0    -      -       -      +
    282A  THR*     3.0    38.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  VAL*     3.2    24.3    +      -       +      +
     42A  LEU*     3.1    14.5    +      -       +      +
     44A  SER*     1.3    82.5    -      -       -      +
     46A  VAL*     1.3    62.2    +      -       -      +
     47A  GLY*     4.5     0.2    -      -       -      -
     65A  LEU*     6.3     0.7    -      -       +      -
     67A  LEU*     4.1    15.9    -      -       +      +
    138A  ASN      4.7     3.1    -      -       -      +
    139A  VAL*     3.7    14.8    -      -       -      +
    140A  VAL*     5.9     0.2    -      -       +      -
    142A  LEU*     4.1    12.1    -      -       +      -
    144A  LEU*     3.6    31.9    -      -       +      -
    282A  THR*     4.7     6.5    -      -       +      +
    285A  LEU*     4.8     8.3    -      -       +      -
    286A  ALA*     4.0    37.5    -      -       +      +
    289A  LEU*     4.4    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  LEU      3.3    11.7    -      -       -      +
     43A  GLU*     3.2    15.7    -      -       -      +
     45A  LEU*     1.3    79.7    -      -       -      +
     47A  GLY*     1.3    62.1    +      -       -      +
     48A  ARG*     3.4    27.3    -      -       +      +
     50A  LEU*     3.4    29.6    -      -       +      -
     65A  LEU*     5.4     2.9    -      -       +      -
     67A  LEU*     4.3    13.9    -      -       +      +
     89A  GLU*     4.6     6.2    -      -       -      +
    104A  PHE*     4.9     0.2    -      -       +      -
    134A  ILE*     4.0    25.6    -      -       +      -
    136A  SER*     4.7     1.4    +      -       -      -
    138A  ASN*     5.1     3.5    -      -       -      +
    139A  VAL*     3.1    24.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  GLU      3.0    10.2    +      -       -      -
     44A  SER      3.9     3.8    +      -       -      -
     45A  LEU      3.3     2.8    -      -       -      -
     46A  VAL*     1.3    77.6    -      -       -      +
     48A  ARG*     1.3    73.0    +      -       -      +
     89A  GLU*     5.1     1.9    -      -       -      +
    138A  ASN*     6.1     2.7    -      -       -      -
    258A  VAL*     3.7    23.4    -      -       -      +
    259A  THR*     4.1    13.6    +      -       -      -
    262A  ILE*     6.3     2.5    -      -       -      -
----------------------------------------------------------
 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