Contacts of the helix formed by residues 37 - 54 (chain L) in PDB entry 6T9L


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 L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385K  TYR*     4.6    13.1    -      -       -      -
     33L  LEU      3.5     3.1    +      -       -      -
     34L  LEU*     3.5     7.9    +      -       -      -
     35L  GLN      3.5     3.6    +      -       -      -
     36L  GLU*     1.3    79.5    -      -       -      +
     38L  TRP*     1.3    63.6    +      -       -      +
     39L  VAL*     3.3     2.7    -      -       -      -
     40L  ASP*     3.3    15.2    +      -       -      +
     41L  LYS*     3.0    26.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 38 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33L  LEU*     2.8    45.7    +      -       +      +
     36L  GLU*     3.3    23.9    -      -       +      +
     37L  GLY*     1.3    74.8    -      -       -      +
     39L  VAL*     1.3    73.0    +      -       +      +
     41L  LYS*     3.3    20.9    +      -       -      +
     42L  VAL*     3.2    48.0    +      -       +      +
     69L  ALA*     3.8    21.3    -      -       +      -
     72L  MET*     3.4    35.7    +      -       +      +
     73L  VAL*     3.8    15.6    -      -       +      +
     20M  LEU*     5.7     3.1    -      -       +      -
     23M  LEU*     3.6    32.1    -      -       +      -
     24M  ILE*     4.4    14.8    -      -       +      -
     27M  ILE*     4.9     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 39 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385K  TYR*     5.6     0.9    -      -       -      +
    468K  ARG*     4.9    12.3    -      -       -      +
     30L  LYS*     5.7     1.3    -      -       -      +
     33L  LEU*     3.8    11.4    +      -       +      +
     34L  LEU*     4.1    27.6    -      -       +      +
     37L  GLY*     3.3     0.8    -      -       -      -
     38L  TRP*     1.3    87.0    -      -       +      +
     40L  ASP*     1.3    63.0    +      -       -      +
     42L  VAL*     3.1    21.1    -      -       -      +
     43L  LYS*     3.2    34.5    +      -       +      +
     23M  LEU*     6.4     0.4    -      -       +      -
     27M  ILE*     4.3    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 40 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385K  TYR*     5.3     8.8    +      -       +      +
    437K  GLY*     6.2     1.5    -      -       -      -
    452K  GLN*     3.1    29.8    +      -       -      +
     37L  GLY*     3.3    16.6    +      -       -      +
     38L  TRP      3.2     0.4    -      -       -      -
     39L  VAL*     1.3    80.1    -      -       -      +
     41L  LYS*     1.3    57.7    +      -       +      +
     43L  LYS*     3.2    10.0    +      -       -      +
     44L  ASP*     2.7    41.9    +      -       -      +
     47L  LYS*     5.4     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 41 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36L  GLU*     3.2    21.6    +      -       -      +
     37L  GLY      3.0    28.0    +      -       -      +
     38L  TRP*     3.3    25.7    +      -       +      +
     40L  ASP*     1.3    79.2    -      -       +      +
     42L  VAL*     1.3    63.5    +      -       +      +
     44L  ASP*     3.4    13.6    +      -       -      +
     45L  LEU*     3.3    18.5    +      -       -      +
     72L  MET*     5.5    12.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 42 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38L  TRP*     3.3    48.7    -      -       +      +
     39L  VAL*     3.1    18.2    -      -       -      +
     41L  LYS*     1.3    77.2    -      -       +      +
     43L  LYS*     1.3    61.6    +      -       -      +
     45L  LEU*     3.3    18.1    +      -       +      +
     46L  THR*     3.3    14.9    +      -       -      +
     65L  VAL*     5.8     0.7    -      -       -      +
     69L  ALA*     4.6     7.0    -      -       +      -
     72L  MET*     3.9    15.9    -      -       -      -
     24M  ILE*     6.3     0.2    -      -       +      -
     27M  ILE*     3.8    34.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 43 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436K  GLY      6.6     0.4    -      -       -      -
    468K  ARG*     5.3     3.8    -      -       -      +
     39L  VAL*     3.2    38.2    +      -       +      +
     40L  ASP*     3.2     9.4    +      -       -      +
     42L  VAL*     1.3    76.5    -      -       -      +
     44L  ASP*     1.3    60.2    +      -       -      +
     46L  THR*     3.1    22.5    -      -       +      +
     47L  LYS*     2.6    30.3    +      -       -      +
     27M  ILE*     3.8    24.0    -      -       +      -
     31M  GLU*     3.9    23.2    +      -       -      +
     67N  ASP*     4.9    11.1    +      -       -      -
     69N  LEU      5.4     2.0    +      -       -      -
     70N  ASP*     5.2    12.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 44 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40L  ASP*     2.7    33.9    +      -       -      +
     41L  LYS*     3.4    17.5    -      -       -      +
     42L  VAL      3.3     0.4    -      -       -      -
     43L  LYS*     1.3    76.0    -      -       -      +
     45L  LEU*     1.3    59.4    +      -       -      +
     47L  LYS*     3.2    30.8    +      -       +      +
     48L  SER*     2.9    17.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 45 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41L  LYS      3.3    11.4    +      -       -      +
     42L  VAL*     3.5    12.8    -      -       +      +
     43L  LYS      3.2     0.6    -      -       -      -
     44L  ASP*     1.3    79.3    -      -       -      +
     46L  THR*     1.3    57.7    +      -       -      +
     48L  SER*     2.6    22.1    +      -       -      +
     49L  GLU*     3.0    32.3    +      -       -      +
     65L  VAL*     3.8    31.6    -      -       +      +
     68L  LYS*     4.0    31.4    -      -       +      +
     69L  ALA*     5.1     2.9    -      -       +      +
     72L  MET*     4.6    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 46 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  VAL      3.3    10.9    +      -       -      +
     43L  LYS*     3.1    23.6    -      -       -      +
     45L  LEU*     1.3    76.0    -      -       -      +
     47L  LYS*     1.3    66.6    +      -       +      +
     49L  GLU*     3.1    18.6    +      -       -      +
     50L  MET*     3.2    21.4    +      -       -      +
     61L  ILE*     4.5     5.2    -      -       -      +
     65L  VAL*     4.6     9.6    -      -       -      -
     27M  ILE*     5.5     2.7    -      -       +      -
     28M  VAL*     4.3    18.3    -      -       -      +
     31M  GLU*     3.8    36.7    -      -       +      +
     32M  THR      5.5     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 47 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436K  GLY      4.7    15.1    +      -       -      -
     40L  ASP*     5.4     0.6    +      -       -      -
     43L  LYS*     2.6    36.7    +      -       -      +
     44L  ASP*     3.2    34.4    +      -       +      +
     46L  THR*     1.3    82.0    -      -       +      +
     48L  SER*     1.3    60.4    +      -       -      +
     50L  MET*     3.6     9.4    +      -       -      +
     51L  ASN*     3.0    28.1    +      -       -      +
     31M  GLU*     5.6     6.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 48 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44L  ASP      2.9    15.6    +      -       -      -
     45L  LEU*     2.6    30.7    +      -       -      +
     47L  LYS*     1.3    77.5    -      -       -      +
     49L  GLU*     1.3    63.2    +      -       -      +
     51L  ASN*     3.2    20.1    +      -       -      +
     52L  ILE*     3.2    22.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 49 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45L  LEU*     3.0    31.4    +      -       +      +
     46L  THR*     3.1    10.5    +      -       -      +
     48L  SER*     1.3    77.4    -      -       -      +
     50L  MET*     1.3    56.6    +      -       -      +
     52L  ILE*     3.3    18.1    -      -       -      +
     53L  ASN*     2.7    67.0    +      -       -      +
     61L  ILE*     3.9    15.7    -      -       +      -
     64L  THR*     3.4    25.6    +      -       -      +
     65L  VAL*     3.8    20.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 50 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46L  THR*     3.2    22.6    +      -       -      +
     47L  LYS*     4.0     9.2    -      -       -      +
     48L  SER      3.3     0.4    -      -       -      -
     49L  GLU*     1.3    75.8    -      -       -      +
     51L  ASN*     1.3    62.3    +      -       -      +
     54L  GLU*     3.1    24.9    +      -       -      +
     55L  SER      3.5    26.6    +      -       -      +
     56L  THR*     3.9    27.6    -      -       +      +
     61L  ILE*     3.9    22.9    -      -       -      -
     31M  GLU      5.3     1.1    -      -       -      +
     32M  THR*     4.4    13.5    -      -       -      +
     35M  GLN*     4.2    31.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 51 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47L  LYS*     3.0    19.3    +      -       -      +
     48L  SER*     3.2    13.4    +      -       -      +
     49L  GLU      3.1     1.0    -      -       -      -
     50L  MET*     1.3    83.5    +      -       -      +
     52L  ILE*     1.3    61.4    +      -       +      +
     54L  GLU*     2.8    24.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 52 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48L  SER*     3.2    19.7    -      -       -      +
     49L  GLU*     3.3    30.5    -      -       -      +
     51L  ASN*     1.3    78.3    -      -       +      +
     53L  ASN*     1.3    71.2    +      -       -      +
     54L  GLU*     2.9    16.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 53 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49L  GLU*     2.7    45.2    +      -       -      +
     52L  ILE*     1.3    84.5    -      -       -      +
     54L  GLU*     1.3    75.9    +      -       -      +
     55L  SER*     3.3     9.7    +      -       -      +
     60L  GLN*     3.7    28.1    +      -       -      +
     61L  ILE*     3.4    20.3    -      -       +      +
     64L  THR*     4.8     6.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 54 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50L  MET      3.1    17.2    +      -       -      +
     51L  ASN      2.8    20.2    -      -       -      +
     52L  ILE*     2.9    26.3    -      -       -      +
     53L  ASN*     1.3    79.1    -      -       -      +
     55L  SER*     1.3    57.9    +      -       -      +
----------------------------------------------------------
 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