Contacts of the helix formed by residues 36 - 46 (chain A) in PDB entry 5MS0


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 36 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLY      3.6     2.4    -      -       -      -
     35A  PHE*     1.3    79.2    -      -       -      +
     37A  HIS*     1.3    61.1    +      -       -      +
     38A  THR      3.4     1.8    -      -       -      -
     39A  LEU*     3.3     7.4    +      -       -      +
     40A  GLY*     3.1    23.6    +      -       -      -
    185A  TYR*     5.4     5.8    -      -       -      +
    187A  VAL*     5.2    14.6    -      -       -      -
    199A  ASP*     5.4     3.9    -      -       -      +
    201A  LEU*     4.8    12.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLY      5.2     1.0    +      -       -      -
     36A  GLY*     1.3    73.0    -      -       -      +
     38A  THR*     1.3    61.3    +      -       -      +
     40A  GLY*     3.9     1.1    -      -       -      +
     41A  ASN*     3.0    32.1    +      -       -      +
   1217C  THR      5.1     0.4    -      -       -      -
   1218C  GLY*     3.2    35.0    -      -       -      +
   1219C  GLU*     3.9    10.5    -      -       -      -
   1220C  GLN      5.1     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLY      5.1    10.3    +      -       -      -
     35A  PHE*     5.7     2.7    -      -       -      -
     36A  GLY      3.4     1.2    -      -       -      +
     37A  HIS*     1.3    77.2    -      -       -      +
     39A  LEU*     1.3    58.4    +      -       -      +
     41A  ASN*     4.6     3.4    -      -       -      +
     42A  ALA*     3.0    33.8    +      -       -      +
     42B  ALA*     5.4    13.5    -      -       -      -
     45B  ARG*     5.8     7.9    -      -       -      -
   1217C  THR      5.1     4.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  PHE      4.4    11.5    +      -       -      +
     36A  GLY*     3.3    12.6    +      -       -      +
     37A  HIS      3.2     0.2    -      -       -      -
     38A  THR*     1.3    74.6    -      -       -      +
     40A  GLY*     1.3    66.6    +      -       -      +
     42A  ALA*     4.3     1.4    -      -       -      +
     43A  LEU*     3.1    26.9    +      -       -      +
    201A  LEU*     5.4     6.1    -      -       +      -
    227B  GLN*     5.3     9.6    -      -       +      +
    228B  LEU*     5.7     8.3    -      -       -      +
    230B  ALA*     4.6    19.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  GLY      3.1    10.5    +      -       -      -
     37A  HIS*     3.6     2.4    +      -       -      -
     39A  LEU*     1.3    79.6    -      -       -      +
     41A  ASN*     1.3    58.1    +      -       -      +
     43A  LEU*     3.8     1.9    -      -       -      -
     44A  ARG*     3.0    27.5    +      -       -      +
    183A  ILE*     6.1     1.2    -      -       -      +
    185A  TYR*     5.0    15.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  HIS      3.0    18.9    +      -       -      +
     38A  THR*     4.5     1.8    -      -       -      +
     40A  GLY*     1.3    76.0    -      -       -      +
     42A  ALA*     1.3    62.0    +      -       -      +
     44A  ARG*     3.7     6.2    -      -       -      +
     45A  ARG*     2.9    26.0    +      -       -      +
   1214C  ASP      4.6     6.5    -      -       -      +
   1215C  GLY*     4.8     9.9    -      -       -      +
   1216C  ARG      4.6     7.0    -      -       -      +
   1217C  THR      4.0    20.0    -      -       -      +
   1218C  GLY*     4.2     8.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  THR      3.0    21.2    +      -       -      +
     39A  LEU*     4.3     1.6    -      -       -      +
     41A  ASN*     1.3    78.4    -      -       -      +
     43A  LEU*     1.3    56.7    +      -       -      +
     44A  ARG      3.2     0.2    -      -       -      -
     45A  ARG*     3.2     9.1    +      -       -      +
     46A  ILE*     3.0    26.7    +      -       -      +
    228B  LEU*     5.3    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  LEU      3.1    15.9    +      -       -      +
     40A  GLY*     3.8     2.9    -      -       -      +
     42A  ALA*     1.3    75.2    -      -       -      +
     44A  ARG*     1.3    58.1    +      -       -      +
     46A  ILE*     4.1    10.3    -      -       +      +
     47A  LEU*     3.3    24.3    -      -       +      +
    183A  ILE*     5.7     4.3    -      -       -      +
    228B  LEU*     5.5    12.5    -      -       +      +
    231B  PHE*     4.8    18.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  GLY      3.0    20.7    +      -       -      +
     41A  ASN*     3.8     7.9    -      -       -      +
     42A  ALA      3.2     0.2    -      -       -      -
     43A  LEU*     1.3    76.1    -      -       -      +
     45A  ARG*     1.3    64.7    +      -       -      +
     46A  ILE      3.4     0.2    -      -       -      -
     47A  LEU*     3.9     4.0    +      -       -      +
     48A  LEU*     3.9    19.8    +      -       -      +
    183A  ILE*     6.2     4.5    -      -       +      -
   1215C  GLY*     5.6     5.2    -      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
     41A  ASN      2.9    15.0    +      -       -      +
     42A  ALA*     3.3    13.5    -      -       -      +
     44A  ARG*     1.3    80.1    -      -       -      +
     46A  ILE*     1.3    61.6    +      -       -      +
     48A  LEU*     4.4     4.5    +      -       -      +
     49A  SER*     5.0     3.6    +      -       -      -
     50A  SER*     5.8     0.2    -      -       -      -
----------------------------------------------------------
 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
----------------------------------------------------------
     42A  ALA      3.0    14.9    +      -       -      +
     43A  LEU*     4.5     6.3    -      -       +      -
     45A  ARG*     1.3    78.4    -      -       -      +
     47A  LEU*     1.3    58.4    +      -       +      +
     48A  LEU      2.9     9.2    +      -       -      -
     50A  SER*     3.3    36.0    +      -       -      -
    220A  ALA*     5.2    15.5    -      -       +      +
----------------------------------------------------------
 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