Contacts of the helix formed by residues 15 - 28 (chain F) in PDB entry 1ZMD


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 15 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13F  GLY      3.6     1.4    +      -       -      -
     14F  SER*     1.3    78.8    -      -       -      +
     16F  PRO*     1.4    70.6    -      -       -      +
     17F  GLY      3.1     3.8    +      -       -      -
     18F  GLY      3.2     1.5    +      -       -      +
     19F  TYR*     2.8    29.3    +      -       -      -
     42F  GLY      3.5    10.3    -      -       -      -
    480F  FAD      3.2    28.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 16 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452E  HIS*     5.7     0.2    -      -       -      +
     15F  GLY*     1.4    82.0    -      -       -      +
     17F  GLY*     1.3    59.6    +      -       -      +
     19F  TYR*     3.9    11.8    -      -       +      -
     20F  VAL*     3.1    28.2    -      -       -      +
     42F  GLY      3.7     8.9    -      -       -      +
     45F  CYS*     3.3    32.1    -      -       +      -
     46F  LEU*     4.8     4.7    -      -       +      -
    328F  ALA*     3.8    14.8    -      -       +      +
    331F  ALA*     4.5     0.4    -      -       +      -
    332F  GLU*     3.2    29.1    -      -       +      +
    480F  FAD      3.3    32.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 17 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  PRO*     1.3    79.5    -      -       -      +
     18F  GLY*     1.3    56.0    +      -       -      -
     20F  VAL*     4.0     0.7    -      -       -      +
     21F  ALA*     3.0    30.0    +      -       -      +
    318F  ILE*     3.5    26.7    -      -       -      +
    331F  ALA*     3.5    19.3    -      -       -      +
    335F  GLY*     4.1     2.6    -      -       -      -
    480F  FAD      2.9    14.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 18 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11F  VAL*     3.4    19.0    -      -       -      +
     13F  GLY      3.4    24.5    -      -       -      -
     15F  GLY      3.2     5.0    +      -       -      +
     17F  GLY*     1.3    73.8    -      -       -      +
     19F  TYR*     1.3    59.3    +      -       -      +
     21F  ALA*     4.3     1.1    -      -       -      -
     22F  ALA*     2.9    31.1    +      -       -      +
     34F  CYS*     4.8     0.2    -      -       -      -
    147F  ALA*     3.7    12.7    -      -       -      +
    480F  FAD      4.1     1.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 19 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392E  SER*     5.7     0.7    +      -       -      -
    452E  HIS*     6.1     0.5    -      -       -      -
    472E  ILE*     4.7     0.4    -      -       +      -
    473E  ASN*     2.7    33.9    +      -       -      -
     14F  SER*     3.6    15.1    -      -       -      +
     15F  GLY      2.8    31.4    +      -       -      -
     16F  PRO*     3.9     9.4    -      -       +      -
     18F  GLY*     1.3    72.3    -      -       -      -
     20F  VAL*     1.3    77.8    +      -       +      +
     23F  ILE*     3.1    48.1    +      -       +      +
     42F  GLY*     4.9     0.2    -      -       -      -
     46F  LEU*     4.6    10.5    -      -       +      +
    103F  ILE*     3.7    43.8    -      -       +      +
    106F  LEU*     4.7     1.8    -      -       +      -
    107F  PHE*     3.6    26.5    -      -       +      -
    332F  GLU*     4.7     6.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 20 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472E  ILE*     4.1    20.9    -      -       +      +
    473E  ASN*     5.4     0.4    -      -       -      +
     16F  PRO      3.1    22.8    +      -       -      +
     17F  GLY      4.0     1.1    -      -       -      +
     18F  GLY      3.2     0.2    -      -       -      -
     19F  TYR*     1.3   103.5    -      -       +      +
     21F  ALA*     1.3    59.3    +      -       -      +
     23F  ILE*     3.2     2.4    +      -       -      +
     24F  LYS*     2.9    29.3    +      -       -      +
    332F  GLU*     3.7    31.9    -      -       +      +
    336F  ILE*     3.5    35.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 21 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11F  VAL*     4.7     1.6    -      -       +      -
     17F  GLY      3.0    20.1    +      -       -      +
     18F  GLY      3.7     4.9    -      -       -      +
     20F  VAL*     1.3    76.7    -      -       -      +
     22F  ALA*     1.3    54.1    +      -       -      +
     24F  LYS*     3.7     2.8    -      -       -      +
     25F  ALA*     2.8    37.5    +      -       -      +
    145F  LEU*     3.4    33.2    -      -       +      -
    335F  GLY*     3.7    25.3    -      -       -      +
    339F  VAL*     3.8     4.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 22 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11F  VAL*     4.1    11.2    -      -       +      +
     18F  GLY      2.9    18.4    +      -       -      +
     19F  TYR      3.7     4.7    -      -       -      +
     21F  ALA*     1.3    75.2    -      -       -      +
     23F  ILE*     1.3    64.3    +      -       -      +
     25F  ALA      3.5     0.2    +      -       -      -
     26F  ALA      3.1    17.8    +      -       -      -
     32F  THR*     3.6    23.9    -      -       +      +
     34F  CYS*     4.1    13.7    -      -       +      -
    107F  PHE*     4.1    15.0    -      -       +      -
    112F  VAL*     3.5    13.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 23 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472E  ILE*     3.8    33.9    -      -       +      +
     19F  TYR*     3.1    47.4    +      -       +      +
     20F  VAL      3.2     3.8    +      -       -      +
     22F  ALA*     1.3    74.2    -      -       -      +
     24F  LYS*     1.3    59.6    +      -       -      +
     26F  ALA*     3.2     5.0    +      -       -      +
     27F  GLN*     2.8    52.8    +      -       -      +
    106F  LEU*     3.8    20.6    -      -       +      +
    107F  PHE*     4.0    16.8    -      -       +      -
    110F  ASN*     3.9    16.9    -      -       -      +
    112F  VAL*     4.2     6.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 24 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464E  LEU*     4.3    16.4    -      -       -      +
    468E  PHE*     3.5    46.5    -      -       -      -
    472E  ILE*     4.1    14.4    -      -       +      -
     20F  VAL      2.9    16.5    +      -       -      +
     21F  ALA      3.7     0.7    -      -       -      +
     23F  ILE*     1.3    78.8    -      -       -      +
     25F  ALA*     1.3    56.9    +      -       -      +
     27F  GLN*     3.1    15.1    +      -       -      +
     28F  LEU*     2.9    51.7    +      -       +      +
    336F  ILE*     4.2    22.3    -      -       +      +
    339F  VAL*     3.4    25.6    -      -       +      -
    340F  GLU*     4.0    18.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 25 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  VAL*     4.4     9.6    -      -       +      -
     21F  ALA      2.8    21.6    +      -       -      +
     22F  ALA      3.8     2.7    -      -       -      +
     23F  ILE      3.3     0.2    -      -       -      -
     24F  LYS*     1.3    73.1    -      -       -      +
     26F  ALA*     1.3    60.6    +      -       -      +
     28F  LEU*     3.2     7.5    +      -       -      -
     29F  GLY      3.3     0.2    +      -       -      -
     30F  PHE*     2.9    45.7    +      -       +      +
     32F  THR*     3.6    20.0    -      -       +      +
    339F  VAL*     4.0    17.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 26 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22F  ALA      3.1    13.6    +      -       -      +
     23F  ILE      3.2     7.2    +      -       -      +
     25F  ALA*     1.3    75.8    -      -       -      +
     27F  GLN*     1.3    57.8    +      -       -      +
     29F  GLY*     2.9    21.3    +      -       -      -
     30F  PHE      3.5    14.1    -      -       -      +
     32F  THR*     3.5     7.1    +      -       -      +
    110F  ASN*     3.1    30.5    -      -       +      +
    111F  LYS*     4.9     2.2    -      -       +      +
    112F  VAL*     3.9    12.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 27 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468E  PHE*     3.6    32.8    -      -       +      -
    470E  LYS*     3.9    36.9    +      -       +      +
    471E  SER      3.0    26.6    +      -       -      +
    472E  ILE*     4.0     6.0    +      -       -      +
    474E  PHE      5.5     0.6    +      -       -      -
     23F  ILE*     2.8    28.0    +      -       -      +
     24F  LYS*     3.1    20.4    +      -       -      +
     26F  ALA*     1.3    78.2    -      -       -      +
     28F  LEU*     1.3    58.4    +      -       -      +
     29F  GLY*     3.3     1.0    +      -       -      -
    109F  GLN*     6.1     0.8    -      -       -      +
    110F  ASN*     3.3    28.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 28 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468E  PHE*     4.1    16.4    -      -       +      -
     24F  LYS*     2.9    40.6    +      -       +      +
     25F  ALA*     3.2     6.5    +      -       -      +
     27F  GLN*     1.3    75.8    -      -       -      +
     29F  GLY*     1.3    58.4    +      -       -      +
     30F  PHE*     3.6    13.0    -      -       +      -
    339F  VAL*     3.7    41.7    -      -       +      +
    340F  GLU*     3.9    14.6    -      -       +      +
    343F  ALA*     4.4    15.6    -      -       +      +
----------------------------------------------------------
 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