Contacts of the helix formed by residues 145 - 157 (chain E) in PDB entry 2Q5E


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 TYR 145 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143E  ARG      3.4     0.8    +      -       -      -
    144E  PRO*     1.3    87.8    -      -       +      +
    146E  VAL*     1.3    59.8    +      -       -      +
    147E  ASP      3.5     1.3    -      -       -      -
    148E  GLU*     3.6    32.0    +      -       +      -
    149E  PHE*     2.9    30.7    +      -       -      +
    242E  ASP      3.8    17.9    -      -       -      -
    243E  THR*     3.8    26.6    -      -       +      +
    245E  LEU*     4.3     1.1    -      -       +      +
    246E  LEU*     3.5    49.3    -      -       +      +
    249E  ILE*     5.9     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 146 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112E  LEU*     4.3    18.6    -      -       +      +
    142E  LYS*     3.7    33.4    -      -       +      -
    143E  ARG      2.7    28.7    -      -       -      +
    144E  PRO      3.3     0.4    -      -       -      -
    145E  TYR*     1.3    76.5    -      -       -      +
    147E  ASP*     1.3    60.5    +      -       -      +
    148E  GLU*     4.5     0.2    +      -       -      -
    149E  PHE*     3.1     1.4    +      -       -      +
    150E  LEU*     2.6    48.2    +      -       +      +
    177E  LEU*     3.9    21.1    -      -       +      -
    245E  LEU*     3.7    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 147 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142E  LYS*     3.1    37.7    +      -       -      +
    146E  VAL*     1.3    78.0    +      -       -      +
    148E  GLU*     1.3    64.2    +      -       -      +
    150E  LEU*     3.6     5.5    +      -       -      +
    151E  ARG*     3.0    44.7    +      -       -      +
    177E  LEU*     4.5    12.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 148 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145E  TYR*     3.6    42.5    +      -       +      +
    146E  VAL      4.5     0.2    +      -       -      -
    147E  ASP*     1.3    82.2    -      -       -      +
    149E  PHE*     1.3    59.9    +      -       -      +
    151E  ARG*     3.0    40.6    +      -       -      +
    152E  ARG*     2.9    30.3    +      -       -      +
    246E  LEU*     5.6     3.8    -      -       +      -
    249E  ILE*     4.4     8.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 149 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106E  ILE*     4.7     5.8    -      -       +      -
    112E  LEU*     4.3    12.6    -      -       +      -
    145E  TYR      2.9    22.3    +      -       -      +
    146E  VAL*     3.3     6.7    -      -       -      +
    148E  GLU*     1.3    72.7    -      -       -      +
    150E  LEU*     1.3    86.5    +      -       +      +
    151E  ARG      3.0     4.5    +      -       -      -
    152E  ARG*     3.2    10.6    +      -       -      +
    153E  MET*     3.2    51.5    +      -       +      +
    216E  LEU*     3.7    25.1    -      -       +      -
    245E  LEU*     3.4    47.3    -      -       +      +
    248E  LEU*     4.4    12.3    -      -       +      -
    249E  ILE*     3.9    18.1    -      -       +      +
    252E  PHE*     4.5     2.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 150 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106E  ILE*     4.7     7.6    -      -       +      -
    112E  LEU*     4.1     9.4    -      -       +      -
    146E  VAL*     2.6    29.6    +      -       +      +
    147E  ASP*     4.2     5.2    -      -       -      +
    149E  PHE*     1.3    94.0    -      -       +      +
    151E  ARG*     1.3    60.6    +      -       -      +
    153E  MET*     4.1     4.7    -      -       +      -
    154E  GLY      3.2     8.8    +      -       -      -
    177E  LEU*     4.3    30.5    -      -       +      +
    178E  ASP*     4.5    10.8    -      -       -      +
    182E  VAL*     3.1    32.5    -      -       +      +
    183E  PHE*     4.0    37.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 151 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147E  ASP*     3.0    25.4    +      -       -      +
    148E  GLU*     3.0    66.3    +      -       -      +
    149E  PHE      3.0     0.4    -      -       -      -
    150E  LEU*     1.3    79.0    -      -       -      +
    152E  ARG*     1.3    68.2    +      -       -      +
    154E  GLY*     3.5     5.5    +      -       -      -
    155E  GLU*     3.8    20.0    +      -       -      +
    180E  CYS*     5.9     6.7    -      -       -      -
    182E  VAL*     5.1     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 152 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148E  GLU      2.9    13.7    +      -       -      +
    149E  PHE      3.8     3.6    -      -       -      +
    151E  ARG*     1.3    77.0    -      -       -      +
    153E  MET*     1.3    59.1    +      -       +      +
    155E  GLU*     2.4    74.3    +      -       -      +
    156E  LEU*     3.4    32.3    +      -       +      +
    249E  ILE*     3.3    36.6    -      -       +      -
    253E  GLU*     2.7    32.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 153 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104E  VAL*     4.2    15.9    -      -       +      -
    106E  ILE*     4.7     2.7    -      -       +      -
    149E  PHE*     3.2    47.0    +      -       +      +
    150E  LEU*     4.4     4.5    -      -       +      +
    152E  ARG*     1.3    78.6    -      -       +      +
    154E  GLY*     1.3    55.8    +      -       -      +
    155E  GLU      3.1     0.4    -      -       -      -
    156E  LEU*     4.4     3.1    -      -       -      +
    157E  PHE*     2.9    47.2    +      -       +      +
    159E  CYS*     3.6    21.6    -      -       -      -
    216E  LEU*     5.8     0.2    -      -       +      -
    249E  ILE*     5.4     5.8    -      -       +      +
    252E  PHE*     3.7    54.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 154 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101E  ARG*     4.3     0.9    +      -       -      -
    150E  LEU      3.2    11.5    +      -       -      -
    151E  ARG      3.5     2.9    +      -       -      -
    152E  ARG      3.2     0.6    +      -       -      -
    153E  MET*     1.3    76.9    -      -       -      +
    155E  GLU*     1.3    58.7    +      -       -      +
    157E  PHE      4.4     1.3    -      -       -      -
    159E  CYS*     4.2     2.4    -      -       -      -
    182E  VAL*     3.8    31.9    -      -       -      -
    184E  ARG*     2.7    33.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 155 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101E  ARG*     2.4    32.3    +      -       -      +
    151E  ARG*     3.8    21.0    +      -       -      +
    152E  ARG*     2.4    51.2    +      -       -      +
    154E  GLY*     1.3    78.1    -      -       -      +
    156E  LEU*     1.3    62.9    +      -       +      +
    157E  PHE      3.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 156 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101E  ARG*     4.0    12.0    +      -       -      +
    152E  ARG*     3.4    42.3    +      -       +      +
    153E  MET*     3.2     2.1    +      -       -      -
    155E  GLU*     1.3    83.3    -      -       +      +
    157E  PHE*     1.4    85.1    +      -       +      +
    249E  ILE      5.3     0.4    -      -       -      +
    252E  PHE*     5.4     0.4    -      -       +      -
    253E  GLU*     3.5    36.8    -      -       +      +
    256E  SER*     3.8    34.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 157 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101E  ARG*     3.6    18.7    +      -       -      -
    102E  ILE*     3.3    32.8    -      -       +      +
    104E  VAL*     3.2    27.6    -      -       +      -
    153E  MET*     2.9    38.7    +      -       +      +
    154E  GLY*     4.4     0.3    -      -       -      -
    155E  GLU      3.5     0.8    +      -       -      -
    156E  LEU*     1.4    95.2    -      -       +      +
    158E  GLU*     1.3    64.0    +      -       -      +
    159E  CYS*     3.6     5.6    +      -       -      -
    184E  ARG*     3.6    17.8    +      -       -      -
    214E  LEU*     4.7     6.1    -      -       +      -
    252E  PHE*     3.4    49.6    -      +       +      -
    255E  LEU      4.6     0.2    -      -       -      -
    256E  SER*     3.7    19.3    -      -       -      -
----------------------------------------------------------
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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