Contacts of the helix formed by residues 65 - 79 (chain B) in PDB entry 3ELP


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 65 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  GLY*     1.3    90.7    +      -       -      +
     66B  PRO*     1.4    76.2    -      -       +      +
     67B  THR*     3.8     0.9    -      -       -      -
     68B  ARG*     3.3    11.8    +      -       -      +
     69B  ASN*     2.7    25.6    +      -       -      +
    249B  PRO*     6.4     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  ASN*     1.4    94.3    -      -       +      +
     67B  THR*     1.3    62.2    +      -       -      +
     69B  ASN*     2.6    32.5    +      -       +      +
     70B  CYS*     3.0    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 67 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  ASN      3.6     0.8    +      -       -      -
     66B  PRO*     1.3    77.7    -      -       -      +
     68B  ARG*     1.3    60.0    +      -       -      +
     70B  CYS*     3.6     6.6    +      -       -      +
     71B  LEU*     3.2    21.8    +      -       -      +
    249B  PRO*     3.0    42.4    +      -       -      +
    252B  CYS*     3.4     4.2    -      -       +      +
    253B  TYR*     3.3    30.9    -      -       +      +
    256B  ASN*     5.4     0.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 68 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  GLY*     2.8    43.4    -      -       -      +
     65B  ASN      3.3     8.0    +      -       -      +
     66B  PRO      2.8     2.2    +      -       -      -
     67B  THR*     1.3    75.6    -      -       -      +
     69B  ASN*     1.3    61.3    +      -       -      +
     71B  LEU*     3.2     2.3    +      -       -      +
     72B  GLU*     2.8    48.4    +      -       -      +
     86B  ALA*     4.2     7.2    -      -       +      -
    237B  ARG*     3.3    25.3    -      -       -      +
    240B  GLN*     3.6    15.0    +      -       -      -
    241B  ASN*     3.5    16.0    +      -       -      -
    246B  VAL*     2.8    55.3    -      -       -      +
    247B  PRO*     4.0     7.2    -      -       -      -
    249B  PRO*     5.8     0.4    -      -       +      +
    252B  CYS*     3.5    26.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 69 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  GLY      4.6     0.7    +      -       -      -
     65B  ASN*     2.7    34.4    +      -       -      +
     66B  PRO*     2.6    16.2    +      -       +      +
     68B  ARG*     1.3    72.9    +      -       -      +
     70B  CYS*     1.3    58.0    +      -       -      +
     72B  GLU*     3.4    10.0    +      -       -      +
     73B  LYS*     2.9    41.1    +      -       -      +
    237B  ARG*     4.1    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 70 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  VAL      4.2     3.3    -      -       -      +
     26B  GLY*     3.2    35.2    -      -       -      +
     27B  GLN*     5.5     0.7    -      -       -      +
     66B  PRO*     3.0    15.9    +      -       -      +
     67B  THR*     4.0     9.2    -      -       -      +
     69B  ASN*     1.3    76.4    -      -       -      +
     71B  LEU*     1.3    66.2    +      -       -      +
     73B  LYS*     3.8    12.0    -      -       -      +
     74B  ALA*     3.1    24.1    +      -       -      +
    256B  ASN*     3.5     8.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 71 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  THR      3.2    14.9    +      -       -      +
     68B  ARG      3.2     7.8    +      -       -      +
     70B  CYS*     1.3    77.0    -      -       -      +
     72B  GLU*     1.3    59.8    +      -       -      +
     74B  ALA*     3.4     1.7    -      -       -      +
     75B  VAL*     2.9    34.8    +      -       +      +
     86B  ALA*     4.4     4.3    -      -       +      -
    222B  MET*     3.6    37.2    -      -       +      -
    224B  LEU*     4.2    12.3    -      -       +      -
    252B  CYS*     3.7    19.7    -      -       +      +
    255B  CYS*     4.0     6.7    -      -       +      -
    256B  ASN*     3.4    42.8    -      -       +      +
    259B  LEU*     3.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 72 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68B  ARG*     2.8    33.9    +      -       -      +
     69B  ASN*     3.7    12.7    +      -       -      +
     71B  LEU*     1.3    74.5    -      -       -      +
     73B  LYS*     1.3    64.9    +      -       -      +
     76B  ALA*     3.0    25.5    +      -       -      +
     84B  CYS*     3.3    33.5    +      -       -      +
     85B  LEU*     3.0     5.0    -      -       -      -
     86B  ALA*     2.6    40.4    +      -       +      +
    224B  LEU*     5.7     0.2    -      -       +      -
    237B  ARG*     2.9    25.5    +      -       -      -
    240B  GLN*     3.1    11.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 73 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  VAL*     3.8    17.0    -      -       +      +
     26B  GLY*     5.3     8.1    -      -       -      +
     69B  ASN*     2.9    29.9    +      -       -      +
     70B  CYS*     3.8    11.8    -      -       -      +
     71B  LEU      3.3     0.2    -      -       -      -
     72B  GLU*     1.3    76.3    -      -       -      +
     74B  ALA*     1.3    63.7    -      -       -      +
     76B  ALA*     3.4     5.8    +      -       -      +
     77B  ALA*     3.1    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  GLN*     4.9     5.1    -      -       -      +
     22B  ALA*     5.4     4.9    -      -       -      +
     25B  VAL*     3.7    28.2    -      -       +      +
     70B  CYS      3.1    14.9    +      -       -      +
     71B  LEU      3.4     4.3    -      -       -      +
     73B  LYS*     1.3    80.0    -      -       -      +
     75B  VAL*     1.3    63.3    +      -       -      +
     77B  ALA*     2.9    15.2    +      -       -      +
     78B  LEU*     3.0    18.5    +      -       +      +
    256B  ASN*     3.8    13.2    -      -       -      +
    259B  LEU*     4.5    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  LEU*     2.9    27.0    +      -       +      +
     74B  ALA*     1.3    72.5    -      -       -      +
     76B  ALA*     1.3    63.1    +      -       -      +
     78B  LEU*     3.1    10.3    +      -       +      -
     79B  ASP*     2.9    41.0    +      -       -      +
     84B  CYS*     3.7    21.1    -      -       -      -
    193B  PRO*     5.7     3.1    -      -       +      -
    208B  TYR*     5.6     4.5    -      -       +      -
    224B  LEU*     3.7    33.2    -      -       +      -
    259B  LEU*     3.5    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72B  GLU      3.0    21.0    +      -       -      +
     73B  LYS*     3.4     7.6    -      -       -      +
     74B  ALA      3.1     0.2    -      -       -      -
     75B  VAL*     1.3    76.8    -      -       -      +
     77B  ALA*     1.3    60.6    +      -       -      +
     79B  ASP      3.3     1.0    +      -       -      -
     80B  GLY      3.2     3.1    +      -       -      -
     81B  ALA*     2.8    42.9    +      -       -      +
     82B  LYS      4.2     3.4    -      -       -      +
     83B  TYR*     3.7    24.7    -      -       -      +
     84B  CYS*     3.7     7.9    -      -       -      +
    226B  SER*     4.0     4.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 77 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  GLN*     3.4    40.6    +      -       +      +
     25B  VAL*     4.4    10.1    -      -       +      -
     73B  LYS      3.1     8.1    +      -       -      +
     74B  ALA      2.9     9.3    +      -       -      +
     76B  ALA*     1.3    76.9    -      -       -      +
     78B  LEU*     1.3    60.3    +      -       -      +
     80B  GLY*     2.8    21.0    +      -       -      +
     81B  ALA      4.6     3.1    -      -       -      +
    197B  ARG*     4.0     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 78 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  PHE*     3.4    71.0    -      -       +      +
     21B  GLN*     4.1    10.1    -      -       +      +
     22B  ALA*     3.8    22.2    -      -       +      +
     74B  ALA      3.0    17.4    +      -       -      +
     75B  VAL*     3.1    10.5    +      -       +      +
     77B  ALA*     1.3    75.7    -      -       -      +
     79B  ASP*     1.3    58.7    +      -       -      +
     80B  GLY      3.2     0.2    -      -       -      -
    193B  PRO*     3.9    16.3    -      -       +      +
    197B  ARG*     3.2    19.2    +      -       -      -
    259B  LEU*     4.1    28.0    -      -       +      -
    262B  LEU*     4.6     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 79 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75B  VAL*     2.9    23.6    +      -       -      +
     76B  ALA      3.9     2.2    -      -       -      +
     78B  LEU*     1.3    75.9    -      -       -      +
     80B  GLY*     1.3    63.2    +      -       -      +
     81B  ALA*     3.4     1.5    +      -       +      -
    188B  ASN*     4.4     2.9    +      -       -      -
    193B  PRO*     3.0    28.1    -      -       -      +
    196B  GLN      5.2     0.7    -      -       -      +
    197B  ARG*     3.4    23.2    -      -       -      +
    198B  PRO*     5.6     1.3    -      -       +      +
    199B  LEU*     4.0    11.4    -      -       +      +
    206B  SER*     4.2    18.6    +      -       -      +
    208B  TYR*     5.0     7.7    -      -       -      +
    224B  LEU*     5.5     0.9    -      -       -      +
    226B  SER*     2.5    40.5    +      -       -      +
----------------------------------------------------------
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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