Contacts of the helix formed by residues 134 - 153 (chain R) in PDB entry 1MFR


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 LEU 134 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123C  PRO*     3.7    31.0    -      -       +      -
    124C  HIS*     3.5    19.1    -      -       +      +
    127C  ASP*     6.1     0.9    -      -       +      -
    107R  ASN*     4.8     7.3    -      -       -      +
    110R  LEU*     3.9    37.2    -      -       +      +
    111R  LEU*     4.6    13.0    -      -       +      -
    114R  HIS*     4.2     7.9    -      -       +      -
    129R  LEU*     2.9    19.2    +      -       +      +
    130R  GLU*     3.9    29.8    +      -       +      +
    133R  TYR*     1.3    75.9    -      -       +      +
    135R  GLU*     1.3    61.7    +      -       -      +
    137R  GLN*     3.5     5.3    +      -       -      +
    138R  VAL*     3.3    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 135 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  TYR*     5.3     0.3    -      -       -      -
     71C  LYS*     2.8    33.4    +      -       -      -
    124C  HIS*     3.0    35.2    +      -       +      +
    127C  ASP*     5.1     6.7    -      -       -      +
    128C  PHE*     5.7     3.5    -      -       -      -
    130R  GLU      4.1    11.4    +      -       -      +
    131R  SER      5.8     2.7    -      -       -      +
    133R  TYR      5.0     0.4    -      -       -      +
    134R  LEU*     1.3    75.5    -      -       -      +
    136R  GLU*     1.3    67.1    +      -       -      +
    138R  VAL*     3.3     2.9    +      -       -      +
    139R  LYS*     3.0    31.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 136 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61R  HIS*     5.1    15.5    -      -       +      +
    132R  GLU      4.2    12.1    -      -       -      +
    133R  TYR*     3.3    13.7    +      -       -      +
    134R  LEU      3.3     0.2    -      -       -      -
    135R  GLU*     1.3    79.4    -      -       -      +
    137R  GLN*     1.3    58.0    +      -       +      +
    139R  LYS*     3.5     7.8    -      -       -      +
    140R  ASP*     3.1    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 137 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61R  HIS*     5.1     1.7    -      -       -      -
    103R  GLU*     3.0    47.4    +      -       -      +
    106R  VAL*     3.9    10.2    -      -       -      +
    107R  ASN*     3.6    22.6    -      -       -      +
    110R  LEU*     3.7    20.4    -      -       +      -
    133R  TYR*     3.0    19.5    +      -       +      +
    134R  LEU      3.7     3.6    -      -       -      +
    135R  GLU      3.2     0.4    -      -       -      -
    136R  GLU*     1.3    76.0    -      -       +      +
    138R  VAL*     1.3    61.5    +      -       -      +
    140R  ASP*     3.3     2.8    +      -       -      +
    141R  ILE*     2.9    34.1    +      -       -      +
    176R   MG      3.4    16.1    -      -       -      -
    177R   MG      2.7    21.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 138 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LYS*     4.3    21.3    -      -       +      +
     72C  ARG*     4.4    16.2    -      -       -      +
    124C  HIS*     3.3    42.8    -      -       +      +
    107R  ASN*     5.0    11.4    -      -       -      +
    134R  LEU      3.3    13.6    +      -       -      +
    135R  GLU*     3.3    14.7    +      -       -      +
    137R  GLN*     1.3    77.8    -      -       +      +
    139R  LYS*     1.3    65.4    +      -       -      +
    141R  ILE*     3.9     8.8    -      -       +      +
    142R  LYS*     3.0    26.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 139 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LYS*     4.6    12.6    -      -       -      +
    135R  GLU*     3.0    34.2    +      -       +      +
    136R  GLU*     3.5    12.1    -      -       -      +
    138R  VAL*     1.3    79.5    -      -       -      +
    140R  ASP*     1.3    60.8    +      -       -      +
    142R  LYS*     3.5     5.6    +      -       -      +
    143R  ARG*     3.0    33.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 140 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54R  HIS*     3.7    20.5    -      -       +      -
     57R  GLU*     4.1     9.8    -      -       -      +
     61R  HIS*     5.6     0.7    -      -       -      -
    103R  GLU*     4.4    12.1    -      -       +      +
    136R  GLU*     3.1    17.7    +      -       -      +
    137R  GLN*     3.3     4.5    +      -       -      +
    139R  LYS*     1.3    80.0    -      -       -      +
    141R  ILE*     1.3    64.3    +      -       -      +
    143R  ARG*     3.2    30.0    +      -       -      +
    144R  ILE*     3.1    30.7    +      -       +      +
    177R   MG      2.5    29.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 141 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  VAL*     3.5    35.5    -      -       +      +
      6C  GLN*     3.8    22.4    -      -       +      +
    100R  LEU*     3.9    22.3    -      -       +      +
    103R  GLU*     3.9    27.6    -      -       +      +
    104R  LYS*     4.2     7.4    -      -       +      -
    107R  ASN*     3.9    25.4    -      -       +      +
    137R  GLN*     2.9    23.3    +      -       -      +
    138R  VAL*     3.9     6.7    -      -       -      +
    140R  ASP*     1.3    74.7    -      -       -      +
    142R  LYS*     1.3    59.6    +      -       -      +
    144R  ILE*     3.4     1.6    +      -       -      -
    145R  GLY*     2.9    24.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 142 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  VAL*     3.9     8.5    -      -       +      +
     67C  LYS*     6.0     0.4    -      -       -      +
     70C  ASN*     3.2    32.5    -      -       -      +
     71C  LYS*     4.1    23.6    -      -       +      +
     38O  ASP*     2.9    29.2    +      -       -      -
     40O  ASP*     4.0    16.4    -      -       +      +
     45O  HIS*     4.0     5.7    -      -       -      -
    138R  VAL      3.0    18.2    +      -       -      +
    139R  LYS*     3.7     6.3    -      -       -      +
    141R  ILE*     1.3    79.5    -      -       -      +
    143R  ARG*     1.3    57.3    +      -       -      +
    145R  GLY*     3.9     0.5    -      -       -      -
    146R  ASP*     2.8    66.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 143 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50R  PHE*     3.9    11.4    -      -       -      -
     54R  HIS*     3.1    30.3    +      -       -      -
     57R  GLU*     5.8     1.6    +      -       -      -
    139R  LYS*     3.0    22.5    +      -       -      +
    140R  ASP*     3.2    31.4    +      -       -      +
    141R  ILE      3.2     0.4    -      -       -      -
    142R  LYS*     1.3    74.8    -      -       -      +
    144R  ILE*     1.3    62.4    +      -       +      +
    146R  ASP*     3.4    10.8    +      -       +      +
    147R  PHE*     3.0    57.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 144 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30R  TYR*     4.3     4.5    -      -       +      +
     50R  PHE*     4.5    23.1    -      -       +      -
     54R  HIS*     4.9     5.8    -      -       +      -
     96R  MET*     3.4    38.4    -      -       -      +
     99R  ALA*     4.1    16.2    -      -       +      +
    100R  LEU*     3.9    17.5    -      -       +      +
    103R  GLU*     3.9    28.3    -      -       +      +
    140R  ASP      3.1    17.1    +      -       -      +
    141R  ILE*     4.0     2.9    -      -       -      +
    143R  ARG*     1.3    75.6    -      -       +      +
    145R  GLY*     1.3    61.2    +      -       -      +
    147R  PHE*     3.2     8.1    +      -       -      +
    148R  ILE*     2.9    29.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 145 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  GLN*     3.1    30.2    +      -       -      -
      4C  VAL*     4.0    10.8    -      -       -      -
     40O  ASP*     4.4     3.1    -      -       -      -
    100R  LEU*     4.5     2.6    -      -       -      +
    141R  ILE      2.9    17.8    +      -       -      -
    142R  LYS      3.9     1.3    -      -       -      -
    144R  ILE*     1.3    75.8    -      -       -      +
    146R  ASP*     1.3    62.5    +      -       -      +
    148R  ILE*     3.1     6.8    +      -       -      +
    149R  THR*     3.0    19.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 146 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40O  ASP*     3.3    17.1    -      -       -      +
     43O  ALA*     3.8    15.4    -      -       +      +
     45O  HIS*     3.1    24.5    +      -       +      +
    142R  LYS*     2.8    54.0    +      -       -      +
    143R  ARG*     3.4    12.7    -      -       +      +
    144R  ILE      3.3     0.2    -      -       -      -
    145R  GLY*     1.3    75.3    -      -       -      +
    147R  PHE*     1.3    65.0    +      -       +      +
    149R  THR*     3.4     1.6    +      -       -      -
    150R  ASN*     3.0    30.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 147 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50R  PHE*     3.7    32.5    -      +       -      -
     96R  MET*     3.9    28.3    -      -       +      -
    143R  ARG*     3.0    40.0    +      -       +      -
    144R  ILE*     3.2    11.6    +      -       -      +
    146R  ASP*     1.3    82.2    -      -       +      +
    148R  ILE*     1.3    52.3    +      -       -      +
    150R  ASN*     3.2     3.7    +      -       +      +
    151R  LEU*     2.7    43.7    +      -       +      +
    166R  PHE*     3.6    22.1    -      +       +      -
    170R  SER*     3.5    32.5    -      -       -      -
    171R  VAL*     4.3     9.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 148 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  GLN*     3.6    16.2    -      -       -      +
     93R  LEU*     3.9    15.7    -      -       +      -
     96R  MET*     3.7    34.3    -      -       +      +
     97R  GLN*     4.0    17.7    -      -       +      +
    100R  LEU*     3.7    33.4    -      -       +      -
    144R  ILE      2.9    19.8    +      -       -      +
    145R  GLY      3.1     6.7    +      -       -      +
    147R  PHE*     1.3    74.7    -      -       -      +
    149R  THR*     1.3    57.6    +      -       -      +
    151R  LEU*     3.3     8.5    +      -       -      +
    152R  LYS*     2.9    47.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 149 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  GLN*     3.4    13.2    +      -       -      -
     40O  ASP      2.8    29.6    +      -       -      +
     41O  ASP*     3.5    26.5    -      -       -      +
     43O  ALA*     3.9     5.6    -      -       +      -
    145R  GLY      3.0     4.7    +      -       -      -
    146R  ASP      3.6     5.2    -      -       -      -
    148R  ILE*     1.3    75.6    -      -       -      +
    150R  ASN*     1.3    59.6    +      -       -      +
    152R  LYS*     3.4     9.5    +      -       -      +
    153R  ARG*     3.0    45.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 150 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43O  ALA*     3.2    34.2    +      -       -      +
     44O  LEU*     4.0     5.4    -      -       -      +
     45O  HIS*     5.8     0.2    -      -       -      -
    164O  TYR*     3.2    34.7    -      -       +      -
    168O  LYS*     4.9     1.0    +      -       -      -
    146R  ASP*     3.0    25.6    +      -       -      +
    147R  PHE*     3.7     6.3    -      -       +      +
    149R  THR*     1.3    75.0    -      -       -      +
    151R  LEU*     1.3    65.9    +      -       -      +
    153R  ARG*     3.3    21.8    +      -       -      +
    154R  LEU*     3.1    30.0    +      -       -      +
    166R  PHE*     4.6     6.7    -      -       +      -
    170R  SER*     4.8     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 151 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92R  THR*     4.1     8.7    -      -       +      +
     93R  LEU*     3.9    17.7    -      -       +      +
     96R  MET*     3.8    29.2    -      -       +      -
    147R  PHE      2.7    30.1    +      -       -      +
    148R  ILE*     3.5     7.0    -      -       -      +
    150R  ASN*     1.3    73.9    -      -       -      +
    152R  LYS*     1.3    59.6    +      -       -      +
    154R  LEU*     3.3    10.5    +      -       +      +
    155R  GLY      3.3     0.2    +      -       -      -
    156R  LEU*     3.0    63.5    +      -       +      +
    163R  GLU*     5.3     0.2    -      -       -      -
    166R  PHE*     3.5    43.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 152 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  GLN*     4.9     4.6    +      -       -      -
     93R  LEU*     4.3    17.3    -      -       +      -
     97R  GLN*     4.1    14.8    +      -       -      -
    148R  ILE*     2.9    38.5    +      -       +      +
    149R  THR*     3.7     8.1    -      -       -      +
    151R  LEU*     1.3    75.6    -      -       -      +
    153R  ARG*     1.3    59.9    +      -       -      +
    155R  GLY*     2.9    19.9    +      -       -      +
    156R  LEU      4.3     4.5    -      -       -      +
    157R  PRO*     5.7     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 153 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41O  ASP      5.5     0.4    +      -       -      -
     42O  VAL*     2.5    36.9    +      -       -      +
     44O  LEU*     3.4    22.9    -      -       -      +
    160O  GLY*     3.3    50.8    -      -       -      +
    161O  MET      3.7     1.0    +      -       -      -
    163O  GLU*     3.5    21.1    +      -       -      +
    164O  TYR*     4.1    13.9    -      -       -      +
    149R  THR*     3.0    29.8    +      -       -      +
    150R  ASN*     3.3    35.0    +      -       -      +
    151R  LEU      3.3     0.4    -      -       -      -
    152R  LYS*     1.3    70.2    -      -       -      +
    154R  LEU*     1.3    59.6    +      -       +      +
    155R  GLY*     3.0     9.1    +      -       -      -
----------------------------------------------------------
 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