Contacts of the helix formed by residues 149 - 166 (chain A) in PDB entry 4L5L


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 149 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  MET*     3.8    31.9    -      -       +      +
    144A  HIS*     4.3    16.2    +      -       +      +
    147A  THR*     3.5    13.2    -      -       -      +
    148A  PRO*     1.3    80.2    -      -       -      +
    150A  HIS*     1.3    75.0    +      -       -      +
    151A  LEU*     3.4    29.8    +      -       -      +
    152A  ASP*     2.8    21.2    +      -       -      +
    153A  PHE*     3.0    19.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  LEU*     3.9    23.5    -      -       +      +
     72A  LEU*     4.1    30.0    -      -       +      +
     73A  ARG*     4.8     1.8    -      -       +      +
     76A  ALA*     3.5    23.2    -      -       +      +
     81A  MET*     3.4    32.1    +      -       -      +
     82A  ILE*     4.2     4.0    -      -       +      +
     92A  ILE*     3.9    12.6    -      -       +      -
     96A  GLU*     2.7    33.6    +      -       +      -
    149A  THR*     1.3    70.7    -      -       -      +
    151A  LEU*     1.3    82.2    +      -       +      +
    153A  PHE*     3.2    12.0    +      -       -      +
    154A  MET*     3.0    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  MET      5.9     0.4    -      -       -      +
     92A  ILE*     3.8    18.6    -      -       +      +
     95A  ILE*     4.0    28.7    -      -       +      -
     96A  GLU*     3.7    32.3    -      -       +      +
     99A  LEU*     3.3    14.3    -      -       +      +
    143A  LEU*     4.1    19.7    -      -       +      -
    144A  HIS*     3.7    29.6    -      -       +      -
    149A  THR*     3.4    12.8    -      -       -      +
    150A  HIS*     1.3    92.0    -      -       +      +
    152A  ASP*     1.3    59.0    +      -       -      +
    154A  MET*     3.4     2.9    +      -       -      -
    155A  PHE*     3.0    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  TYR*     3.5    22.4    -      -       +      +
    143A  LEU*     3.0    32.3    +      -       -      +
    144A  HIS      5.0     0.9    -      -       -      +
    147A  THR      4.0     0.7    -      -       -      +
    148A  PRO*     3.3     7.9    -      -       +      +
    149A  THR*     2.8    36.9    +      -       -      +
    151A  LEU*     1.3    76.1    -      -       -      +
    153A  PHE*     1.3    55.3    +      -       +      +
    155A  PHE*     4.3     1.1    -      -       -      -
    156A  TYR*     2.6    36.6    +      -       -      +
    179A  PHE*     3.5    24.3    -      -       +      -
    183A  ILE*     4.0    13.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  PRO*     3.9    22.3    -      -       -      +
     19A  LEU*     3.8    25.7    -      -       +      +
     20A  LEU*     3.9    18.8    -      -       +      -
     23A  TYR*     3.4    45.8    -      +       +      -
    148A  PRO*     4.1    13.5    -      -       +      -
    149A  THR      3.0    30.1    -      -       -      -
    150A  HIS*     3.2     6.1    +      -       -      +
    152A  ASP*     1.3    76.3    -      -       +      +
    154A  MET*     1.3    64.4    +      -       -      +
    156A  TYR*     4.0     3.7    -      -       -      +
    157A  GLU*     3.1    23.6    +      -       -      +
    183A  ILE*     4.0    23.1    -      -       +      -
    186A  LEU*     4.2     3.6    -      -       +      -
    189A  ILE*     3.8    24.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  PRO*     3.8    17.0    -      -       +      +
     69A  LEU*     4.1    16.8    -      -       +      -
     72A  LEU*     3.3    30.1    -      -       +      -
     96A  GLU*     3.8    32.3    -      -       -      +
     99A  LEU*     3.9    20.0    -      -       +      +
    100A  VAL*     4.0    18.6    -      -       +      +
    103A  ARG*     5.7     0.7    -      -       -      +
    150A  HIS*     3.0    17.4    +      -       -      +
    151A  LEU*     3.6    11.9    -      -       -      +
    153A  PHE*     1.3    74.0    -      -       -      +
    155A  PHE*     1.3    64.3    +      -       -      +
    157A  GLU*     3.2     3.1    +      -       -      +
    158A  ALA*     3.0    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  LEU*     3.4    20.0    -      -       +      -
    102A  LEU*     3.9    15.9    -      -       +      -
    133A  TRP*     3.9    27.8    -      +       +      -
    137A  LEU*     4.6     6.1    -      -       +      -
    143A  LEU*     3.6    29.4    -      -       +      -
    151A  LEU      3.0    17.2    +      -       -      +
    152A  ASP      3.7     2.9    -      -       -      +
    154A  MET*     1.3    72.8    -      -       -      +
    156A  TYR*     1.3    68.1    +      -       -      +
    157A  GLU      3.2     0.3    +      -       -      -
    158A  ALA*     3.3     2.3    +      -       -      +
    159A  LEU*     2.9    56.9    +      -       +      +
    176A  LEU*     3.6    22.7    -      -       +      -
    179A  PHE*     3.4    30.1    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ARG*     5.4     0.7    -      -       -      -
     19A  LEU*     3.9    20.2    -      -       +      -
    152A  ASP      2.6    22.3    +      -       -      +
    153A  PHE*     4.0     3.6    -      -       -      +
    154A  MET      3.3     0.2    -      -       -      -
    155A  PHE*     1.3    74.4    -      -       -      +
    157A  GLU*     1.3    71.2    +      -       -      +
    159A  LEU*     3.2     2.9    +      -       -      +
    160A  ASP*     2.8    45.5    +      -       +      +
    179A  PHE*     3.7    13.4    -      -       +      -
    180A  ILE*     3.8    23.8    -      -       +      -
    183A  ILE*     3.9    28.9    -      -       +      -
    184A  GLU*     2.6    39.7    +      -       +      -
    193A  MET*     3.1    33.7    -      -       +      +
    198A  PHE*     5.6     0.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ARG*     2.8    55.5    +      -       -      +
     12A  GLY      4.6     3.8    +      -       -      +
     15A  GLN*     3.4    28.0    +      -       +      +
     16A  PRO*     4.2    14.1    -      -       +      -
     19A  LEU*     4.6     3.4    -      -       +      -
    103A  ARG*     4.4    14.9    +      -       -      +
    153A  PHE      3.1    18.3    +      -       -      +
    154A  MET      3.9     3.4    -      -       -      +
    156A  TYR*     1.3    89.0    -      -       +      +
    158A  ALA*     1.3    59.4    +      -       -      +
    160A  ASP*     3.3     1.8    +      -       -      +
    161A  VAL*     3.0    39.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  LEU*     4.8     3.1    -      -       +      +
    102A  LEU*     3.8    29.8    -      -       +      -
    103A  ARG*     4.1    32.0    -      -       +      +
    154A  MET      3.0    16.1    +      -       -      +
    155A  PHE*     3.7     4.5    -      -       -      +
    157A  GLU*     1.3    77.3    -      -       -      +
    159A  LEU*     1.3    60.8    +      -       -      +
    161A  VAL*     3.4     2.3    +      -       -      +
    162A  ILE*     3.0    32.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  LEU*     4.7     4.5    -      -       +      -
    130A  LEU*     4.2    16.4    -      -       +      -
    155A  PHE*     2.9    58.6    +      -       +      +
    156A  TYR*     3.8     2.9    -      -       -      +
    158A  ALA*     1.3    72.9    -      -       -      +
    160A  ASP*     1.3    57.5    +      -       -      +
    162A  ILE*     3.4     3.6    +      -       +      +
    163A  ARG*     2.8    31.2    +      -       -      +
    170A  VAL*     4.4     9.5    -      -       +      +
    176A  LEU*     4.1    38.1    -      -       +      +
    179A  PHE*     3.6    27.6    -      -       +      -
    180A  ILE*     4.0    16.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ARG*     2.7    32.7    +      -       -      +
    156A  TYR*     2.8    42.0    +      -       +      +
    157A  GLU*     3.7     4.9    -      -       -      +
    158A  ALA      3.3     0.2    -      -       -      -
    159A  LEU*     1.3    76.7    -      -       -      +
    161A  VAL*     1.3    62.1    +      -       -      +
    163A  ARG*     2.8    38.7    +      -       -      +
    164A  TYR*     3.1    22.2    +      -       -      +
    180A  ILE*     4.7     3.3    -      -       -      +
    184A  GLU*     4.4     0.2    -      -       -      +
    198A  PHE*     6.1     0.2    -      -       -      -
    200A  LYS*     5.1     5.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ARG*     4.2     7.6    -      -       -      +
    103A  ARG*     3.8    34.1    -      -       -      +
    106A  VAL*     4.0    32.1    -      -       +      -
    157A  GLU*     3.0    34.5    +      -       -      +
    158A  ALA*     3.8     4.7    -      -       -      +
    160A  ASP*     1.3    76.5    -      -       -      +
    162A  ILE*     1.3    56.4    +      -       -      +
    164A  TYR*     3.2     7.9    +      -       -      +
    165A  LEU*     3.0    25.1    +      -       -      +
    203A  LEU*     4.4    18.6    -      -       +      -
    210A  PHE*     4.0    10.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  LEU*     3.7    42.6    -      -       +      +
    103A  ARG*     5.8     0.2    -      -       -      -
    106A  VAL*     3.8    12.3    -      -       +      -
    122A  TYR*     3.7    21.1    -      -       +      +
    126A  LEU*     3.8    30.3    -      -       +      -
    130A  LEU*     4.6     6.5    -      -       +      -
    158A  ALA*     3.0    21.9    +      -       -      +
    159A  LEU*     3.8     4.9    -      -       +      +
    161A  VAL*     1.3    73.7    -      -       -      +
    163A  ARG*     1.3    60.9    +      -       -      +
    165A  LEU*     3.0     9.3    +      -       +      +
    166A  ASP      2.9    28.1    +      -       -      +
    170A  VAL*     3.6    19.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  LEU      2.8    22.0    +      -       -      +
    160A  ASP*     2.8    29.5    +      -       -      +
    161A  VAL      3.4     0.2    -      -       -      -
    162A  ILE*     1.3    72.9    -      -       -      +
    164A  TYR*     1.3    59.2    +      -       -      +
    166A  ASP      4.0     0.2    -      -       -      -
    167A  PRO*     3.3    38.7    -      -       +      +
    170A  VAL*     3.8    18.8    -      -       +      +
    171A  GLU*     5.9     1.1    -      -       -      -
    177A  MET*     4.2    24.3    -      -       -      +
    180A  ILE*     3.7    35.5    -      -       +      +
    181A  HIS*     4.2    19.8    +      -       -      -
    184A  GLU*     3.8    10.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ASP      3.1    14.3    +      -       -      +
    161A  VAL      3.6     8.1    -      -       -      +
    162A  ILE      3.2     0.4    -      -       -      -
    163A  ARG*     1.3    76.6    -      -       -      +
    165A  LEU*     1.3    63.9    +      -       -      +
    166A  ASP      3.5     0.2    +      -       -      -
    167A  PRO*     4.3     4.7    -      -       -      +
    200A  LYS*     6.2     2.0    -      -       -      -
    201A  TRP*     3.7    25.4    -      +       -      -
    203A  LEU*     3.9    15.0    -      -       +      -
    210A  PHE*     3.7    25.0    -      +       -      -
    216A  PRO*     3.9    10.3    -      -       +      +
    217A  PRO*     3.3    31.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  VAL*     4.3    16.8    -      -       +      -
    109A  ILE*     5.1     2.2    -      -       +      -
    115A  PHE*     3.9    19.3    -      -       +      -
    119A  LYS*     3.6    45.3    +      -       +      +
    122A  TYR*     3.9    30.1    -      -       +      -
    123A  LEU*     4.8     1.3    -      -       +      -
    126A  LEU*     6.1     0.2    -      -       +      -
    161A  VAL      3.0     9.8    +      -       -      +
    162A  ILE*     3.0    12.8    +      -       +      +
    164A  TYR*     1.3    78.5    -      -       -      +
    166A  ASP*     1.3    63.1    +      -       +      +
    167A  PRO*     4.2     0.7    -      -       -      +
    210A  PHE*     3.5    35.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  LYS*     4.8     4.2    +      -       -      -
    123A  LEU*     3.8    37.9    -      -       +      +
    126A  LEU*     5.4     0.7    -      -       +      -
    162A  ILE      2.9    12.6    +      -       -      +
    163A  ARG      3.8     1.3    -      -       -      -
    164A  TYR      3.3     0.4    -      -       -      -
    165A  LEU*     1.3    81.7    -      -       +      +
    167A  PRO*     1.3    72.2    -      -       -      +
    168A  THR*     3.4    12.7    +      -       -      +
    169A  SER*     2.5    49.1    +      -       -      +
    170A  VAL*     3.8     2.8    +      -       -      +
----------------------------------------------------------
 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