Contacts of the helix formed by residues 92 - 111 (chain A) in PDB entry 4IYM


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 THR 92 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  SER*     3.1     5.7    +      -       -      -
     90A  GLY      4.0     0.2    +      -       -      -
     91A  LYS*     1.3    76.7    -      -       -      +
     93A  ILE*     1.3    65.5    +      -       -      +
     94A  ASP*     3.4     8.3    +      -       -      +
     95A  ASP*     3.0    35.0    +      -       -      +
     96A  ALA      2.9    18.7    +      -       -      -
    310A  GLY      5.9     0.7    -      -       -      +
    312A  TYR*     4.6     9.2    -      -       -      +
    314A  ASP      5.8     2.0    -      -       -      +
    315A  GLU*     6.4     2.2    -      -       -      -
    317A  ALA*     3.6    27.4    -      -       +      +
    318A  ASP      4.0    16.6    -      -       -      +
    319A  MSE      4.2     9.6    -      -       -      +
    320A  GLY*     4.8     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  ASN      5.7     0.9    -      -       -      +
     82A  ALA*     4.0     6.5    -      -       +      +
     83A  GLU*     3.9    22.4    -      -       +      +
     86A  SER*     3.5    17.0    +      -       -      +
     92A  THR*     1.3    72.3    -      -       -      +
     94A  ASP*     1.3    62.0    +      -       -      +
     96A  ALA*     3.1     5.4    +      -       -      +
     97A  LYS*     2.9    55.8    +      -       +      +
    312A  TYR*     3.8    36.5    +      -       +      +
    315A  GLU*     3.5    29.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  THR*     3.3     7.0    +      -       -      +
     93A  ILE*     1.3    80.5    -      -       -      +
     95A  ASP*     1.3    63.1    +      -       -      +
     97A  LYS*     3.2    17.4    +      -       -      +
     98A  GLY*     3.0    19.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  LYS*     3.5    27.1    +      -       +      +
     92A  THR*     3.0    41.9    +      -       -      +
     94A  ASP*     1.3    74.1    -      -       -      +
     96A  ALA*     1.3    64.0    +      -       -      +
     98A  GLY*     3.1     4.3    +      -       -      -
     99A  ASP*     3.0    21.3    +      -       -      +
    149A  PHE*     5.6     1.6    -      -       -      -
    273A  GLY*     5.7     1.6    -      -       -      -
    274A  SER*     3.8    26.5    +      -       -      +
    318A  ASP      4.8     3.3    -      -       -      +
    319A  MSE      5.7     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ALA*     3.6    23.3    -      -       +      +
     85A  LEU*     3.9    15.1    -      -       +      +
     86A  SER*     3.3    25.4    -      -       -      +
     91A  LYS*     4.1     6.7    -      -       +      +
     92A  THR      2.9     5.6    +      -       -      +
     93A  ILE      3.1     6.7    +      -       -      +
     95A  ASP*     1.3    75.5    -      -       -      +
     97A  LYS*     1.3    57.1    +      -       -      +
     99A  ASP*     3.0    26.1    -      -       -      +
    100A  ILE*     3.1    15.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  MSE      3.9    27.0    -      -       +      +
     79A  ASN*     2.9    30.2    +      -       -      +
     82A  ALA*     3.8    15.5    -      -       +      -
     93A  ILE*     2.9    36.5    +      -       +      +
     94A  ASP*     3.6    17.8    +      -       -      +
     96A  ALA*     1.3    72.7    -      -       -      +
     98A  GLY*     1.3    54.7    -      -       -      +
    100A  ILE*     3.2     2.3    +      -       -      +
    101A  VAL*     2.8    43.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  ASP      3.0    14.2    +      -       -      -
     95A  ASP*     3.1     5.1    +      -       -      -
     97A  LYS*     1.3    73.0    -      -       -      +
     99A  ASP*     1.3    62.8    +      -       -      +
    101A  VAL*     3.9     6.2    -      -       -      +
    102A  ARG*     3.0    36.1    +      -       -      +
    149A  PHE*     5.8     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  LEU*     3.7    12.1    -      -       +      +
     91A  LYS*     2.8    28.4    +      -       -      +
     95A  ASP      3.0    11.2    +      -       -      +
     96A  ALA      3.0    13.5    -      -       -      +
     98A  GLY*     1.3    75.6    -      -       -      +
    100A  ILE*     1.3    61.8    +      -       -      +
    102A  ARG*     5.1     0.4    -      -       -      -
    103A  GLY      3.3     6.9    +      -       -      -
    149A  PHE*     3.2    33.6    -      -       +      -
    150A  PRO*     3.4     6.6    -      -       -      +
    151A  GLY*     3.2     6.0    +      -       -      -
    152A  MSE      2.7    53.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  LEU*     4.6    14.4    -      -       +      -
     78A  MSE      3.5    32.3    -      -       +      -
     81A  LEU*     4.2    36.3    -      -       +      -
     82A  ALA      4.8     2.9    -      -       -      +
     85A  LEU*     3.9    21.1    -      -       +      -
     96A  ALA      3.1    13.6    +      -       -      +
     97A  LYS*     3.2     6.7    +      -       -      +
     99A  ASP*     1.3    77.9    -      -       -      +
    101A  VAL*     1.3    57.5    +      -       -      +
    103A  GLY*     3.1     4.0    +      -       -      -
    104A  LEU*     2.8    26.4    +      -       +      +
    151A  GLY*     4.2     9.0    -      -       -      -
    155A  MSE      3.6    10.5    -      -       +      +
    179A  VAL*     4.1    19.7    -      -       +      -
    183A  LEU*     5.1     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  ASN*     5.7     0.2    -      -       -      +
     78A  MSE      3.8    21.8    -      -       +      -
     97A  LYS*     2.8    27.1    +      -       +      +
     98A  GLY*     3.9     7.2    -      -       -      +
    100A  ILE*     1.3    73.2    -      -       -      +
    102A  ARG*     1.3    61.3    +      -       +      +
    104A  LEU*     3.1    16.2    +      -       +      +
    105A  GLU*     3.0    47.0    +      -       +      +
     65C  ARG*     5.3     2.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  GLY*     3.0    22.0    +      -       -      +
     99A  ASP      4.1     0.2    -      -       -      +
    100A  ILE      3.3     0.4    -      -       -      -
    101A  VAL*     1.3    77.2    -      -       +      +
    103A  GLY*     1.3    64.3    +      -       -      +
    105A  GLU*     3.5    22.4    +      -       -      +
    106A  VAL*     3.7    15.6    +      -       -      +
    149A  PHE*     4.5     6.6    -      -       -      -
    152A  MSE      3.3    46.2    -      -       +      +
    156A  TRP*     4.7     2.1    +      -       -      +
    278A  ARG*     3.2    36.4    -      -       -      +
    439A  ILE*     5.5     1.0    -      -       -      +
    441A  VAL*     3.7    32.7    -      -       -      +
    443A  LEU*     6.1     4.5    -      -       -      -
    444A  ALA*     5.1     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  ASP      3.3     7.3    +      -       -      -
    100A  ILE      3.1     6.8    +      -       -      -
    102A  ARG*     1.3    75.2    -      -       -      +
    104A  LEU*     1.3    64.2    +      -       -      +
    106A  VAL*     3.0    18.0    +      -       -      +
    107A  CYS*     3.3    13.0    +      -       -      -
    152A  MSE      3.8    16.9    -      -       -      +
    155A  MSE      3.6    28.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  VAL*     3.9    13.2    -      -       +      +
     74A  LEU*     3.8    39.5    -      -       +      -
     75A  ASN*     3.5    32.1    -      -       -      +
     78A  MSE      4.4    11.0    -      -       +      -
    100A  ILE      2.8    13.2    +      -       -      +
    101A  VAL*     3.2    17.9    -      -       +      +
    103A  GLY*     1.3    74.5    -      -       -      +
    105A  GLU*     1.3    60.4    +      -       +      +
    107A  CYS*     3.1     8.2    +      -       -      +
    108A  GLU*     2.9    55.7    +      -       +      +
    155A  MSE      3.9     1.2    -      -       -      -
     65C  ARG*     4.6     4.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  VAL*     3.0    33.3    +      -       +      +
    102A  ARG*     3.8    16.4    -      -       -      +
    103A  GLY      3.1     0.4    -      -       -      -
    104A  LEU*     1.3    77.2    -      -       +      +
    106A  VAL*     1.3    59.6    +      -       -      +
    108A  GLU*     3.5    11.0    +      -       -      +
    109A  PHE*     3.1    20.3    +      -       -      +
    443A  LEU*     3.9    16.6    -      -       -      +
    444A  ALA*     3.2    17.4    +      -       +      +
     61C  GLN*     3.2    30.5    +      -       -      +
     65C  ARG*     3.1    30.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ARG      3.7     9.6    +      -       -      +
    103A  GLY      3.0     7.9    +      -       -      +
    105A  GLU*     1.3    73.9    -      -       -      +
    107A  CYS*     1.3    61.5    +      -       -      +
    109A  PHE*     3.1     6.6    +      -       +      +
    110A  VAL*     3.0    30.7    +      -       +      +
    155A  MSE      3.9    10.3    -      -       -      +
    156A  TRP*     3.7    34.8    -      -       +      +
    159A  ALA*     3.8    17.5    -      -       +      -
    160A  PRO*     4.0    12.3    -      -       +      -
    444A  ALA*     3.7    16.4    -      -       +      -
    462A  HIS*     4.1    21.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  PHE*     3.8    14.2    -      -       +      +
     70A  PHE*     3.8    32.1    -      -       +      -
     71A  VAL*     3.7    18.2    -      -       +      -
    103A  GLY      3.3    12.5    +      -       -      -
    104A  LEU*     3.1    12.7    +      -       -      +
    106A  VAL*     1.3    72.7    -      -       -      +
    108A  GLU*     1.3    61.9    +      -       -      +
    110A  VAL*     3.3    23.5    -      -       -      +
    111A  ILE*     3.3    13.7    +      -       -      +
    155A  MSE      4.0    11.9    -      -       -      -
    158A  PHE*     5.2     1.3    -      -       -      -
    159A  ALA*     4.1    14.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  VAL*     4.0    15.6    -      -       +      +
    104A  LEU*     2.9    30.6    +      -       -      +
    105A  GLU*     3.6    15.6    -      -       -      +
    106A  VAL      3.3     0.2    -      -       -      -
    107A  CYS*     1.3    75.5    -      -       -      +
    109A  PHE*     1.3    64.0    +      -       -      +
    111A  ILE*     3.3    27.4    +      -       -      +
    112A  GLY      4.3     0.5    +      -       -      -
     61C  GLN*     4.5     7.5    +      -       -      +
     65C  ARG*     2.7    44.8    +      -       -      +
     68C  MSE      3.4    32.7    -      -       +      +
    111C  ILE*     4.4     9.0    -      -       +      +
    112C  GLY*     5.8     1.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  GLU      3.1    14.7    +      -       -      +
    106A  VAL*     3.1    15.7    +      -       +      +
    108A  GLU*     1.3    77.6    -      -       -      +
    110A  VAL*     1.3    68.7    +      -       +      +
    112A  GLY*     3.1    16.8    +      -       -      -
    116A  LEU*     3.6    45.5    -      -       +      +
    444A  ALA*     3.8    16.2    -      -       +      -
    445A  TYR*     3.7    32.1    -      -       +      +
    462A  HIS*     5.1     0.4    -      -       +      -
    463A  GLY*     3.4    42.8    -      -       -      -
    464A  THR*     4.1     1.8    -      -       +      -
    466A  SER*     4.5     1.8    -      -       -      -
    467A  ILE*     4.5     7.4    -      -       +      -
    112C  GLY*     5.7     3.1    -      -       -      -
    115C  HIS*     4.1    15.5    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ALA*     4.4     1.9    -      -       -      +
     67A  PHE*     3.6    32.5    -      -       +      -
    106A  VAL*     3.0    19.8    +      -       +      +
    107A  CYS*     3.3    15.7    -      -       -      +
    109A  PHE*     1.3    87.1    -      -       +      +
    111A  ILE*     1.3    65.8    +      -       -      +
    112A  GLY      2.9     1.1    -      -       -      -
    113A  ILE*     2.9    26.4    +      -       +      +
    116A  LEU*     4.6     3.1    -      -       -      -
    159A  ALA*     3.8     8.1    -      -       +      +
    160A  PRO*     3.7    35.0    -      -       +      -
    163A  ALA*     3.6    11.8    -      -       +      +
    467A  ILE*     5.0     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ALA*     3.2    24.8    -      -       +      +
     67A  PHE*     4.2     3.8    -      -       +      +
     68A  MSE      3.7    65.1    -      -       +      +
     71A  VAL*     4.8     1.8    -      -       +      -
    107A  CYS      3.3    13.9    +      -       -      +
    108A  GLU*     3.3    26.2    -      -       -      +
    109A  PHE      3.2     0.2    -      -       -      -
    110A  VAL*     1.3    76.2    -      -       -      +
    112A  GLY*     1.3    54.3    +      -       -      +
    113A  ILE      3.2     2.1    +      -       -      -
    114A  PRO*     3.4     5.7    -      -       -      +
     68C  MSE      4.2    16.2    -      -       -      -
    108C  GLU*     4.3    10.3    -      -       +      +
    111C  ILE*     4.2    24.0    -      -       +      -
    112C  GLY      6.2     0.2    -      -       -      -
----------------------------------------------------------
 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