Contacts of the helix formed by residues 77 - 88 (chain Q) in PDB entry 1MVW


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 77 (chain Q).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24Q  ILE*     3.9    16.6    -      -       +      -
     27Q  PHE      4.1     2.5    -      -       -      -
     28Q  LYS*     3.5    48.9    -      -       +      -
     31Q  PHE*     3.6    36.3    -      +       +      -
     40Q  GLY      4.0     0.6    +      -       -      -
     76Q  ASN*     1.3    75.3    -      -       -      +
     78Q  THR*     1.3    64.2    +      -       +      +
     80Q  PHE*     3.3     4.1    +      +       +      +
     81Q  LEU*     3.0    64.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 78 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76Q  ASN*     2.8    19.0    +      -       -      +
     77Q  PHE*     1.3    83.6    -      -       +      +
     79Q  VAL*     1.3    63.6    +      -       -      +
     81Q  LEU*     3.4    10.9    +      -       +      +
     82Q  THR*     3.0    38.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 79 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71Q  ALA*     4.1    14.4    -      -       +      -
     72Q  SER      5.5     0.4    -      -       -      +
     73Q  GLY*     4.3     7.6    -      -       -      +
     74Q  PRO*     3.5    25.6    -      -       +      +
     75Q  ILE*     4.0    19.3    -      -       +      -
     76Q  ASN*     3.0    24.8    +      -       -      +
     78Q  THR*     1.3    77.6    -      -       -      +
     80Q  PHE*     1.3    60.0    +      -       -      +
     82Q  THR*     2.9    19.6    +      -       -      +
     83Q  MET*     3.0    18.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 80 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    831P  TRP*     3.9    33.7    -      +       -      -
     27Q  PHE*     4.6    13.7    -      +       +      -
     30Q  ALA*     4.9     4.3    -      -       +      -
     31Q  PHE*     3.7    41.1    -      +       +      -
     34Q  ILE*     4.4     7.2    -      -       +      -
     42Q  ILE*     4.6     3.8    -      -       +      -
     75Q  ILE*     3.7    23.3    -      -       +      +
     76Q  ASN      3.0    16.7    +      -       -      +
     77Q  PHE*     3.6     7.2    -      +       +      +
     78Q  THR      3.3     0.2    -      -       -      -
     79Q  VAL*     1.3    77.4    -      -       -      +
     81Q  LEU*     1.3    58.7    +      -       +      +
     83Q  MET*     3.4    21.5    +      -       +      +
     84Q  PHE*     3.0    64.0    +      +       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 81 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19Q  PHE*     4.5    11.0    -      -       +      -
     24Q  ILE*     4.4    17.0    -      -       +      -
     27Q  PHE*     4.0    31.2    -      -       +      -
     77Q  PHE*     3.0    62.6    +      -       +      +
     78Q  THR*     3.7    11.2    -      -       +      +
     79Q  VAL      3.3     0.2    -      -       -      -
     80Q  PHE*     1.3    79.1    -      -       +      +
     82Q  THR*     1.3    57.5    +      -       +      +
     84Q  PHE*     3.4     4.6    +      -       +      +
     85Q  GLY*     2.8    26.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 82 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78Q  THR*     3.0    20.5    +      -       -      +
     79Q  VAL*     2.9    21.7    +      -       -      +
     81Q  LEU*     1.3    76.0    -      -       +      +
     83Q  MET*     1.3    59.1    +      -       -      +
     85Q  GLY*     3.7     1.5    -      -       -      -
     86Q  GLU*     3.0    50.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 83 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    829P  TRP*     3.2    30.1    -      -       +      -
    831P  TRP*     4.9     5.2    -      -       +      +
     67Q  MET      4.6     3.8    -      -       -      +
     70Q  GLU*     3.7    46.2    -      -       +      +
     71Q  ALA*     4.6     3.4    -      -       +      -
     75Q  ILE*     4.9    12.6    -      -       +      -
     79Q  VAL*     3.0    19.1    +      -       +      +
     80Q  PHE*     3.7    27.8    -      -       +      +
     81Q  LEU      3.3     0.2    -      -       -      -
     82Q  THR*     1.3    79.8    +      -       -      +
     84Q  PHE*     1.3    60.7    +      -       +      +
     86Q  GLU*     3.3     8.7    +      -       -      +
     87Q  LYS*     3.2    38.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 84 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    829P  TRP*     2.7    43.1    -      +       -      -
    831P  TRP*     4.0    15.0    -      -       +      -
    832P  MET*     3.3    25.6    -      -       -      -
    835P  PHE*     5.6     3.8    -      +       +      -
     19Q  PHE*     4.3     4.0    -      -       +      -
     27Q  PHE*     4.3    31.9    -      +       +      -
     80Q  PHE*     3.0    57.2    +      +       -      +
     81Q  LEU*     3.9     4.3    -      -       +      +
     83Q  MET*     1.3    77.2    -      -       +      +
     85Q  GLY*     1.3    56.3    +      -       -      +
     87Q  LYS*     3.2     4.7    +      -       -      +
     88Q  LEU*     2.9    56.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 85 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19Q  PHE*     3.5    27.9    -      -       -      -
     81Q  LEU      2.8    14.8    +      -       -      -
     82Q  THR*     3.3     2.9    +      -       -      -
     83Q  MET      3.3     0.2    -      -       -      -
     84Q  PHE*     1.3    75.4    -      -       -      +
     86Q  GLU*     1.3    61.3    +      -       -      +
     88Q  LEU*     3.2    15.5    +      -       -      -
     89Q  LYS*     3.2    15.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 86 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82Q  THR*     3.0    34.7    +      -       -      +
     83Q  MET*     3.3     7.3    +      -       -      +
     85Q  GLY*     1.3    75.7    -      -       -      +
     87Q  LYS*     1.3    62.1    +      -       +      +
     89Q  LYS*     3.5    24.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 87 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    822P  SER*     4.0    10.6    +      -       -      +
    825P  ASN*     4.6     9.8    +      -       +      +
    826P  VAL*     3.6    22.1    -      -       +      +
    829P  TRP*     2.1    79.4    -      -       +      +
     70Q  GLU*     5.5     2.2    -      -       +      +
     83Q  MET*     3.2    26.9    +      -       +      +
     84Q  PHE*     3.2    13.1    +      -       -      +
     86Q  GLU*     1.3    80.2    -      -       +      +
     88Q  LEU*     1.3    62.2    +      -       -      +
     89Q  LYS*     3.5     4.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 88 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    822P  SER*     3.3    15.7    -      -       -      +
    823P  PHE*     5.1     0.4    -      -       -      +
    826P  VAL*     3.0    39.7    -      -       +      -
    832P  MET*     4.1    17.5    -      -       +      -
     19Q  PHE*     5.2     9.6    -      -       +      -
     23Q  GLU*     5.8     1.1    -      -       -      +
     27Q  PHE*     4.5    11.9    -      -       +      -
     84Q  PHE*     2.9    44.3    +      -       +      +
     85Q  GLY*     3.4     7.8    -      -       -      +
     87Q  LYS*     1.3    78.0    -      -       +      +
     89Q  LYS*     1.3    56.8    +      -       -      +
     90Q  GLY      3.1    10.0    +      -       -      -
     91Q  ALA*     3.2    27.2    +      -       +      +
----------------------------------------------------------
 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