Contacts of the helix formed by residues 1041 - 1053 (chain A) in PDB entry 1M8X


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 TYR1041 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1001A  SER      3.6    13.4    -      -       -      +
   1002A  THR      3.5    20.2    -      -       -      +
   1003A  HIS      4.0     0.9    -      -       -      +
   1004A  PRO*     3.7    39.0    -      -       +      +
   1007A  CYS*     3.8    21.5    -      -       -      +
   1039A  ASP*     2.8     9.2    +      -       -      +
   1040A  GLN*     1.3   108.7    +      -       +      +
   1042A  GLY*     1.3    64.0    +      -       -      +
   1043A  ASN      3.1     1.8    -      -       -      -
   1044A  TYR*     3.1    23.1    +      -       -      +
   1045A  VAL      3.8     2.4    +      -       -      -
     16C    A      3.5    43.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY1042 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1001A  SER      3.3    14.1    +      -       -      -
   1036A  LEU*     3.2    29.5    -      -       -      +
   1039A  ASP*     2.7    18.0    +      -       -      -
   1041A  TYR*     1.3    73.8    -      -       -      +
   1043A  ASN*     1.3    61.6    +      -       -      +
   1045A  VAL*     3.0    17.6    +      -       -      +
   1046A  ILE*     3.2    14.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1043 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  LEU      3.0     9.8    +      -       -      -
   1037A  VAL*     3.2    24.9    -      -       -      +
   1039A  ASP      3.0    19.9    +      -       -      +
   1040A  GLN      3.3    10.5    +      -       -      -
   1041A  TYR      3.1     1.2    -      -       -      -
   1042A  GLY*     1.3    77.6    -      -       -      +
   1044A  TYR*     1.3    64.2    +      -       -      +
   1046A  ILE*     3.6     1.0    +      -       -      +
   1047A  GLN*     2.6    57.3    +      -       -      +
   1077A  PHE*     3.7    14.4    -      -       -      +
   1081A  VAL*     3.8    12.9    -      -       +      +
     15C    U      2.8    35.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR1044 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007A  CYS*     5.5     0.2    -      -       -      -
   1011A  GLN*     3.9     6.2    -      -       -      +
   1040A  GLN      3.8    11.4    -      -       -      -
   1041A  TYR*     3.1    15.3    +      -       -      +
   1042A  GLY      3.1     1.0    -      -       -      -
   1043A  ASN*     1.3    80.2    +      -       -      +
   1045A  VAL*     1.3    59.5    +      -       -      +
   1047A  GLN*     3.4    13.5    +      -       -      +
   1048A  HIS*     2.9    28.2    +      -       -      +
     15C    U      2.9    71.0    -      +       +      +
     16C    A      3.4    86.0    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1045 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1001A  SER*     4.1    16.2    -      -       -      +
   1007A  CYS*     3.8    40.8    -      -       +      +
   1010A  ILE*     3.7    18.2    -      -       +      -
   1011A  GLN*     4.4     4.5    -      -       +      -
   1014A  LEU*     4.4     5.2    -      -       +      -
   1029A  LEU*     3.5    38.4    -      -       +      -
   1036A  LEU*     5.8     0.4    -      -       +      -
   1041A  TYR      4.2     0.4    -      -       -      +
   1042A  GLY*     3.0     9.1    +      -       -      +
   1044A  TYR*     1.3    78.1    -      -       -      +
   1046A  ILE*     1.3    63.4    +      -       +      +
   1048A  HIS*     3.2    16.5    +      -       -      +
   1049A  VAL*     3.2    13.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE1046 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1029A  LEU*     4.4    15.3    -      -       +      +
   1033A  THR*     4.2    17.5    -      -       +      +
   1036A  LEU*     3.9    33.2    -      -       +      -
   1037A  VAL*     4.3    15.0    -      -       +      +
   1042A  GLY      3.2    13.0    +      -       -      +
   1043A  ASN      4.0     5.8    -      -       -      +
   1044A  TYR      3.3     0.2    -      -       -      -
   1045A  VAL*     1.3    74.5    -      -       -      +
   1047A  GLN*     1.3    64.5    +      -       -      +
   1049A  VAL*     3.2     7.3    +      -       +      +
   1050A  LEU*     3.0    19.9    +      -       +      +
   1061A  ILE*     3.4    40.4    -      -       +      -
   1081A  VAL*     4.0    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN1047 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1043A  ASN*     2.6    43.0    +      -       -      +
   1044A  TYR*     3.7    13.5    -      -       +      +
   1046A  ILE*     1.3    72.3    -      -       -      +
   1048A  HIS*     1.3    67.2    +      -       -      +
   1050A  LEU*     2.8    21.4    +      -       -      -
   1051A  GLU*     2.8    23.0    +      -       -      +
   1080A  ASN*     3.8    12.5    -      -       -      +
   1081A  VAL*     4.1    15.0    -      -       +      +
   1084A  LYS*     3.1    43.5    +      -       +      +
     15C    U      2.9    20.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS1048 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1011A  GLN*     3.7    40.2    +      -       +      +
   1012A  ARG*     4.8     1.1    -      -       -      -
   1014A  LEU*     3.9    20.7    -      -       +      +
   1015A  GLU*     2.9    45.3    +      -       +      +
   1044A  TYR      2.9    14.7    +      -       -      +
   1045A  VAL      3.2    12.1    +      -       -      +
   1047A  GLN*     1.3    77.5    -      -       -      +
   1049A  VAL*     1.3    59.3    +      -       -      +
   1051A  GLU*     3.2     5.2    +      -       -      -
   1052A  HIS*     2.9    61.8    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1049 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1014A  LEU*     3.8    22.4    -      -       +      -
   1026A  LEU*     4.3    17.5    -      -       +      -
   1029A  LEU*     4.3     8.7    -      -       +      -
   1030A  HIS*     5.2     0.9    -      -       +      -
   1045A  VAL      3.2    14.3    +      -       -      +
   1046A  ILE*     3.5     9.2    -      -       +      +
   1047A  GLN      3.1     0.6    -      -       -      -
   1048A  HIS*     1.3    76.2    -      -       -      +
   1050A  LEU*     1.3    58.6    +      -       -      +
   1053A  GLY*     2.8    33.3    +      -       -      +
   1057A  ASP*     3.9    28.0    -      -       +      -
   1058A  LYS*     3.7     5.6    -      -       -      +
   1061A  ILE*     3.8    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1050 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1046A  ILE      3.0    16.6    +      -       -      +
   1047A  GLN*     2.8    12.6    +      -       -      +
   1049A  VAL*     1.3    73.1    -      -       -      +
   1051A  GLU*     1.3    58.4    +      -       -      +
   1058A  LYS*     3.2    57.8    +      -       +      +
   1061A  ILE*     4.1    15.3    -      -       +      -
   1062A  VAL*     4.5     5.2    -      -       +      -
   1081A  VAL*     3.9    15.9    -      -       +      +
   1084A  LYS*     3.6    35.2    -      -       +      +
   1085A  CYS*     3.7    31.2    -      -       -      +
   1088A  HIS*     3.2    17.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1051 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  GLN*     2.8    25.3    +      -       -      +
   1048A  HIS*     3.8     5.6    -      -       -      +
   1050A  LEU*     1.3    81.8    -      -       -      +
   1052A  HIS*     1.3    87.4    +      -       +      +
   1058A  LYS*     4.6     5.3    +      -       -      -
   1084A  LYS*     3.2    34.5    -      -       +      -
   1088A  HIS*     3.9    29.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS1052 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1015A  GLU*     5.1     3.6    +      -       +      -
   1048A  HIS*     2.9    60.5    +      +       +      +
   1051A  GLU*     1.3   103.3    +      -       +      +
   1053A  GLY*     1.3    67.7    +      -       -      +
   1058A  LYS*     4.8     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY1053 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1048A  HIS      4.0     0.6    +      -       -      -
   1049A  VAL*     2.8    32.6    +      -       -      +
   1052A  HIS*     1.3    83.0    -      -       -      +
   1054A  ARG*     1.3    64.0    +      -       -      -
   1055A  PRO*     3.8     1.9    -      -       -      +
   1057A  ASP*     5.3     0.7    -      -       -      -
   1058A  LYS*     2.9    20.9    +      -       -      +
----------------------------------------------------------
 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