Contacts of the helix formed by residues 124 - 139 (chain A) in PDB entry 2VGL


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 ASN 124 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  SER*     3.0    13.2    +      -       -      +
    123A  ARG*     1.3    75.8    -      -       -      +
    125A  PRO*     1.3    68.7    -      -       -      +
    126A  THR*     3.0    18.9    +      -       -      -
    127A  PHE*     3.0    41.2    +      -       +      +
    128A  MET*     2.8    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  ARG      3.6     8.5    -      -       -      +
    124A  ASN*     1.3    87.8    -      -       -      +
    126A  THR*     1.3    55.9    +      -       -      +
    128A  MET*     3.3     5.1    +      -       +      +
    129A  GLY*     2.7    32.4    +      -       -      -
    161A  MET*     3.7    32.8    -      -       +      -
    163A  SER*     4.4     8.2    +      -       -      +
    164A  VAL*     3.7    28.9    -      -       +      +
    137S  MET*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  TYR*     3.7    24.2    -      -       +      -
    124A  ASN*     3.0    10.2    +      -       -      -
    125A  PRO*     1.3    80.6    -      -       -      +
    127A  PHE*     1.3    69.2    +      -       +      +
    129A  GLY*     2.9    12.3    +      -       -      -
    130A  LEU*     2.9    16.2    +      -       +      +
    134S  GLN*     5.0     5.3    +      -       -      +
    137S  MET*     3.8    21.1    -      -       -      +
    138S  LEU*     3.4    29.5    -      -       +      +
    141S  LEU*     4.1    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  ASN*     3.7    40.8    -      -       -      -
     88A  TYR*     4.2    20.0    -      -       +      -
     91A  LYS*     3.7    26.2    -      -       +      -
    119A  ASP*     3.4    33.3    -      -       +      +
    122A  SER*     4.1    11.2    -      -       -      +
    124A  ASN*     3.0    36.9    +      -       +      +
    126A  THR*     1.3    79.6    -      -       +      +
    128A  MET*     1.3    66.9    +      -       -      +
    130A  LEU*     3.5    11.1    +      -       +      +
    131A  ALA*     3.0    26.0    +      -       -      +
    141S  LEU*     5.7     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  ASP      3.7    17.9    +      -       -      +
    120A  LEU*     3.5    23.1    -      -       +      +
    122A  SER*     4.4     0.2    -      -       -      +
    123A  ARG*     4.4    17.9    -      -       -      +
    124A  ASN      2.8    25.3    +      -       -      +
    125A  PRO*     3.5     8.7    -      -       -      +
    127A  PHE*     1.3    71.7    -      -       -      +
    129A  GLY*     1.3    51.7    +      -       -      +
    131A  ALA*     3.1     6.3    +      -       -      +
    132A  LEU*     2.8    42.6    +      -       +      +
    154A  ILE*     3.8    33.4    -      -       +      -
    160A  THR*     4.4    12.6    -      -       +      -
    164A  VAL*     4.1    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  PRO      2.7    19.8    +      -       -      -
    126A  THR*     2.9     6.1    +      -       -      -
    128A  MET*     1.3    68.9    -      -       -      +
    130A  LEU*     1.3    65.1    +      -       -      -
    132A  LEU*     3.1     7.4    +      -       -      +
    133A  HIS*     2.8    40.9    +      -       -      -
    164A  VAL*     5.0     2.6    -      -       -      +
    167A  SER*     5.4     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  TYR*     4.1    27.4    -      -       +      +
     91A  LYS*     4.2    25.8    -      -       +      -
     92A  GLN*     4.1    28.7    -      -       +      +
     95A  TYR*     3.7    28.0    -      -       +      +
    126A  THR*     2.9    22.3    +      -       +      +
    127A  PHE*     4.0    14.4    -      -       +      +
    129A  GLY*     1.3    71.0    -      -       -      +
    131A  ALA*     1.3    65.5    +      -       -      +
    133A  HIS*     3.2     8.2    +      -       -      +
    134A  CYS*     2.8    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TYR*     4.1    15.0    -      -       -      +
    116A  ILE*     4.3    10.1    -      -       +      +
    119A  ASP*     3.9    15.9    -      -       +      -
    120A  LEU*     3.5    22.7    -      -       +      +
    127A  PHE      3.0    18.9    +      -       -      +
    128A  MET      3.3     4.3    -      -       -      +
    130A  LEU*     1.3    79.8    -      -       -      +
    132A  LEU*     1.3    57.7    +      -       -      +
    134A  CYS*     3.2     3.8    +      -       -      +
    135A  ILE*     3.1    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  LEU*     4.1    11.9    -      -       +      -
    128A  MET*     2.8    25.2    +      -       +      +
    129A  GLY*     3.8     4.5    -      -       -      +
    131A  ALA*     1.3    71.0    -      -       -      +
    133A  HIS*     1.3    67.3    +      -       -      +
    135A  ILE*     3.4     8.2    +      -       +      +
    136A  ALA*     3.0    21.7    +      -       -      +
    151A  ILE*     3.5    33.0    -      -       +      -
    154A  ILE*     4.9     5.4    -      -       +      -
    164A  VAL*     3.7    39.3    -      -       +      +
    167A  SER*     4.4    13.9    -      -       -      +
    168A  ALA*     4.2    19.1    -      -       +      +
    171A  CYS*     3.9    17.8    -      -       -      +
    119S  LEU*     5.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  GLY*     2.8    28.0    +      -       -      +
    130A  LEU*     3.7     8.4    -      -       +      +
    132A  LEU*     1.3    73.2    -      -       -      +
    134A  CYS*     1.3    58.5    +      -       -      +
    136A  ALA*     3.0     1.9    +      -       -      +
    137A  ASN*     2.7    40.1    +      -       -      +
    167A  SER*     3.1    27.7    +      -       -      -
    115S  ASP*     3.9    47.8    +      -       +      +
    116S  GLU*     5.1    10.5    -      -       -      -
    119S  LEU*     3.6    32.6    -      -       +      +
    124S  ARG*     4.2     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TYR*     3.4    38.1    -      -       +      -
     98A  ILE*     4.0    18.2    -      -       -      -
     99A  SER*     4.0    21.3    -      -       -      +
    116A  ILE*     4.3     1.3    -      -       +      -
    130A  LEU      2.8     7.0    +      -       -      +
    131A  ALA      3.5     8.1    -      -       -      +
    133A  HIS*     1.3    76.3    -      -       -      +
    135A  ILE*     1.3    61.4    +      -       -      +
    137A  ASN*     3.7     0.9    -      -       -      +
    138A  VAL*     3.0    28.7    +      -       -      +
    143A  MET*     3.4    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  ILE*     4.0    19.5    -      -       +      -
    120A  LEU*     4.6     3.6    -      -       +      -
    131A  ALA      3.1    16.0    +      -       -      +
    132A  LEU*     3.6     9.9    -      -       -      +
    133A  HIS      3.1     0.4    -      -       -      -
    134A  CYS*     1.3    76.5    -      -       -      +
    136A  ALA*     1.3    56.4    +      -       -      +
    139A  GLY*     2.6    36.6    +      -       -      -
    143A  MET*     4.2    19.1    -      -       +      +
    147A  PHE*     3.5    40.6    -      -       +      -
    151A  ILE*     4.5    13.9    -      -       +      -
    171A  CYS*     3.6    17.5    -      -       -      -
    174A  ARG*     4.7     0.2    -      -       -      +
    175A  LEU*     4.2    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  LEU      3.0    14.8    +      -       -      +
    133A  HIS      3.5     5.8    -      -       -      +
    135A  ILE*     1.3    74.8    -      -       -      +
    137A  ASN*     1.3    67.4    +      -       -      +
    171A  CYS*     4.2    14.5    -      -       -      +
    174A  ARG*     3.1    34.1    +      -       -      +
    119S  LEU*     3.8    31.6    -      -       +      -
    120S  ALA*     4.6    13.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  SER*     4.2    30.0    +      -       -      +
    133A  HIS*     2.7    24.7    +      -       -      +
    134A  CYS      3.7     3.4    -      -       -      +
    136A  ALA*     1.3    77.9    -      -       -      +
    138A  VAL*     1.3    62.4    +      -       -      +
    174A  ARG*     3.3    12.8    +      -       -      -
     18S  LYS*     3.9    24.2    -      -       -      +
     19S  TRP      5.6     3.0    -      -       -      +
     20S  TYR*     4.8    10.3    -      -       -      -
    115S  ASP*     3.3    24.5    +      -       -      -
    119S  LEU*     3.9    14.7    -      -       -      +
    120S  ALA      5.2     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  ILE*     3.8    24.2    -      -       +      +
     99A  SER*     4.0    12.8    -      -       -      +
    102A  VAL*     3.9    29.8    -      -       +      -
    134A  CYS*     3.0    24.2    +      -       -      +
    137A  ASN*     1.3    74.3    -      -       -      +
    139A  GLY*     1.3    66.3    +      -       -      +
    140A  SER*     3.1    25.2    +      -       -      +
    143A  MET*     3.9    14.1    -      -       +      -
    174A  ARG*     3.7     9.4    +      -       -      -
     22S  GLN*     4.0    11.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  ILE      2.6    27.2    +      -       -      -
    138A  VAL*     1.3    75.2    -      -       -      +
    140A  SER*     1.3    64.7    +      -       -      +
    143A  MET*     4.2     5.4    -      -       -      -
    174A  ARG*     4.3    11.9    -      -       -      -
    175A  LEU*     4.6    16.7    -      -       -      +
    178A  THR*     3.5    26.7    -      -       -      +
    179A  SER*     5.1     0.5    +      -       -      -
     22S  GLN*     5.2     1.1    +      -       -      -
----------------------------------------------------------
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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