Contacts of the helix formed by residues 43 - 54 (chain A) in PDB entry 2GO0


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 SER 43 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  TYR*     4.4     6.5    +      -       -      -
     41A  VAL      3.5     1.0    -      -       -      -
     42A  LEU*     1.3    83.7    -      -       -      +
     44A  GLY*     1.3    65.4    +      -       -      +
     45A  ALA*     3.0    19.3    +      -       -      +
     46A  GLU*     3.1    24.2    +      -       -      -
     47A  GLY      3.1    10.7    +      -       -      -
     92A  TYR*     3.8    12.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  SER*     1.3    74.9    +      -       -      +
     45A  ALA*     1.3    60.6    +      -       -      +
     47A  GLY      4.1     0.8    -      -       -      -
     48A  SER*     3.6    19.1    +      -       -      -
     92A  TYR*     3.5    32.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  TYR*     3.3    19.2    -      -       +      +
     43A  SER*     3.0     8.8    +      -       -      +
     44A  GLY*     1.3    79.1    -      -       -      +
     46A  GLU*     1.3    59.4    +      -       -      +
     48A  SER*     3.3     5.5    +      -       -      -
     49A  PHE*     2.8    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  TYR*     3.6    32.7    +      -       +      -
     14A  TYR*     3.5    20.9    +      -       +      -
     40A  SER*     2.6    41.3    +      -       -      +
     41A  VAL*     3.6     3.1    -      -       +      -
     42A  LEU*     3.2    19.1    +      -       -      +
     43A  SER*     3.1    15.6    +      -       -      +
     45A  ALA*     1.3    78.3    -      -       -      +
     47A  GLY*     1.3    61.0    +      -       -      +
     49A  PHE*     3.9     7.0    -      -       +      -
     50A  VAL*     2.8    42.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  VAL*     3.3    22.1    -      -       -      +
     43A  SER      3.1    13.8    +      -       -      -
     44A  GLY      4.5     1.3    -      -       -      -
     46A  GLU*     1.3    77.0    -      -       -      +
     48A  SER*     1.3    59.8    +      -       -      +
     50A  VAL*     4.3     2.1    -      -       -      +
     51A  SER*     3.4    20.6    +      -       -      -
     92A  TYR*     4.9     8.3    -      -       -      -
    111A  LEU*     5.2     3.1    -      -       -      +
    117A  PHE      4.2     4.3    -      -       -      +
    118A  LEU*     4.1     6.3    -      -       -      +
    120A  TRP*     5.6     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  GLY      3.6    17.2    +      -       -      -
     45A  ALA*     3.3     6.0    +      -       -      -
     46A  GLU      3.1     0.6    -      -       -      -
     47A  GLY*     1.3    75.9    -      -       -      +
     49A  PHE*     1.3    65.7    +      -       -      +
     51A  SER*     3.5     2.4    +      -       -      -
     52A  SER*     3.2    21.5    +      -       -      -
    118A  LEU*     4.0    20.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LYS*     3.6    51.6    +      -       +      -
      8A  ALA      4.4     9.2    -      -       -      -
      9A  TYR*     4.1    33.9    -      +       +      -
     14A  TYR*     6.2     3.4    -      +       +      -
     45A  ALA      2.8    17.9    +      -       -      +
     46A  GLU*     3.0     9.8    +      -       +      +
     48A  SER*     1.3    76.0    -      -       -      +
     50A  VAL*     1.3    69.1    +      -       +      +
     52A  SER*     3.2     8.1    +      -       -      -
     53A  LEU*     3.0    20.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  TYR*     5.2     6.7    -      -       +      -
     39A  VAL*     3.5    35.4    -      -       +      -
     40A  SER      4.2     1.8    -      -       -      +
     41A  VAL*     4.7     3.8    -      -       +      -
     46A  GLU*     2.8    37.6    +      -       +      +
     47A  GLY*     4.3     3.8    -      -       -      +
     49A  PHE*     1.3    76.8    -      -       +      +
     51A  SER*     1.3    63.5    +      -       -      +
     53A  LEU*     3.0    19.8    +      -       +      +
     54A  VAL*     3.1    13.6    +      -       +      +
     66A  ILE*     5.3     0.9    -      -       +      -
    111A  LEU*     4.4    21.3    -      -       +      -
    132A  VAL*     4.3    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  GLY      3.4    13.5    +      -       -      -
     48A  SER      3.6     6.0    +      -       -      -
     49A  PHE      3.2     0.6    -      -       -      -
     50A  VAL*     1.3    79.7    -      -       -      +
     52A  SER*     1.3    59.0    +      -       -      +
     54A  VAL*     3.2     4.4    +      -       -      +
     55A  LYS*     2.8    36.4    +      -       -      +
    111A  LEU*     5.1     1.3    -      -       -      +
    116A  ALA      2.8    22.2    +      -       -      -
    117A  PHE*     3.4    33.1    -      -       -      +
    118A  LEU*     3.7    10.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LYS*     4.5     9.4    +      -       -      -
     48A  SER      3.2     9.6    +      -       -      -
     49A  PHE*     3.2    12.1    +      -       -      -
     51A  SER*     1.3    80.5    +      -       -      +
     53A  LEU*     1.3    61.6    +      -       -      +
     55A  LYS*     3.7    28.4    +      -       -      +
     56A  SER*     4.5     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  GLY      3.9    19.1    -      -       -      +
      7A  LYS*     3.7    33.0    -      -       +      +
     14A  TYR*     4.3    15.3    -      -       +      +
     15A  ALA      4.9     0.4    -      -       -      +
     16A  LEU*     3.8    25.4    -      -       +      +
     49A  PHE*     3.0    15.2    +      -       +      +
     50A  VAL*     3.0    16.0    +      -       +      +
     52A  SER*     1.3    77.9    -      -       -      +
     54A  VAL*     1.3    65.9    +      -       +      +
     56A  SER*     4.5     7.2    +      -       -      -
    132A  VAL*     3.5    36.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  LEU*     3.9    19.7    -      -       +      -
     50A  VAL*     3.2    16.6    -      -       +      +
     51A  SER*     3.6    10.8    -      -       -      +
     53A  LEU*     1.3    87.6    -      -       +      +
     55A  LYS*     1.3    56.8    +      -       -      +
     56A  SER      3.2     6.2    +      -       -      +
     57A  ILE*     3.5    20.1    -      -       +      +
     64A  VAL*     4.2    19.3    -      -       +      -
    111A  LEU*     4.4     8.5    -      -       +      -
    117A  PHE*     3.7    24.7    -      -       +      -
    132A  VAL*     3.2    35.0    -      -       +      -
----------------------------------------------------------
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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