Contacts of the helix formed by residues 19 - 35 (chain 1) in PDB entry 1NJI


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 GLY 19 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     171  ARG      3.2     7.3    +      -       -      -
     181  TYR*     1.3    79.7    -      -       -      +
     201  LEU*     1.3    65.4    +      -       -      -
     211  LYS      3.7     0.9    -      -       -      -
     221  ILE      3.8     0.6    +      -       -      -
     231  ARG*     3.0    30.6    +      -       -      +
   1771A    U      3.4    18.4    +      -       -      -
   1885A    A      3.6    13.5    +      -       -      -
   1886A    A      3.8     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 20 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     191  GLY*     1.3    72.4    -      -       -      +
     211  LYS*     1.3    66.3    +      -       +      +
     231  ARG*     3.7     3.4    -      -       -      +
     241  VAL*     2.8    39.3    +      -       +      +
   1771A    U      3.5    33.0    +      -       -      +
   1772A    C      3.4    30.5    -      -       -      +
   1886A    A      3.0    25.8    +      -       -      +
   1887A    U      4.0    22.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 21 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     191  GLY      3.7     0.2    -      -       -      -
     201  LEU*     1.3    77.0    -      -       +      +
     221  ILE*     1.3    66.8    +      -       +      +
     241  VAL*     4.5     4.9    -      -       -      -
     251  ARG*     3.0    59.8    +      -       -      +
   1886A    A      3.8    14.0    +      -       -      +
   1887A    U      3.0    40.0    +      -       -      +
   1888A    C      5.2     5.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 22 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     181  TYR*     3.6    24.4    +      -       +      +
     191  GLY      3.8     0.8    +      -       -      -
     201  LEU      3.2     0.8    +      -       -      -
     211  LYS*     1.3    82.3    -      -       +      +
     231  ARG*     1.3    61.2    +      -       +      +
     251  ARG      3.6     0.2    +      -       -      -
     261  VAL*     3.1    27.4    +      -       +      +
   1829A    A      6.2     0.2    -      -       -      +
   1847A    A      3.2    31.0    -      -       +      +
   1848A    G      4.2    11.9    -      -       -      +
   1885A    A      3.4    26.0    -      -       -      +
   1886A    A      5.4     4.6    -      -       -      -
    168C  PRO*     3.8    21.2    -      -       +      +
    170C  VAL*     3.3    41.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 23 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     111  THR*     2.6    56.4    +      -       +      +
     141  PHE*     3.9    12.8    -      -       +      -
     151  GLY      3.4    16.6    +      -       -      -
     161  PRO      3.5    11.9    +      -       -      -
     171  ARG      2.9    28.1    +      -       -      +
     191  GLY*     3.0    24.9    +      -       -      +
     201  LEU*     3.2     4.9    +      -       -      +
     221  ILE*     1.3    78.2    -      -       +      +
     241  VAL*     1.3    68.8    +      -       +      +
     251  ARG      3.1     1.8    -      -       -      -
     261  VAL*     4.2     3.6    -      -       -      -
     271  ALA*     3.1    12.3    +      -       -      +
   1771A    U      2.7    50.7    +      -       -      +
   1772A    C      3.4    11.7    +      -       -      -
   1773A    G      3.2    12.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 24 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     111  THR*     5.7     0.4    -      -       -      -
     201  LEU*     2.8    35.9    +      -       +      +
     211  LYS*     3.9     4.9    -      -       -      +
     231  ARG*     1.3    79.2    -      -       +      +
     251  ARG*     1.3    63.2    +      -       +      +
     271  ALA*     3.5     4.8    +      -       -      +
     281  ASP*     2.9    43.1    +      -       -      +
   1772A    C      5.6     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 25 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     211  LYS*     3.0    50.0    +      -       -      +
     221  ILE*     3.8     4.0    -      -       -      +
     241  VAL*     1.3    81.9    -      -       +      +
     261  VAL*     1.3    59.5    +      -       -      +
     281  ASP*     4.2     7.6    -      -       +      +
     291  VAL*     2.9    39.9    +      -       +      +
   1849A    G      4.9     9.9    +      -       -      -
    166C  ASP      4.9    10.4    +      -       -      +
    168C  PRO*     4.3    20.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 26 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     111  THR*     3.7    14.6    -      -       -      +
     131  ARG*     3.9    11.4    -      -       -      +
     141  PHE*     4.0    15.3    -      -       +      -
     221  ILE      3.1    17.8    +      -       -      +
     231  ARG      3.3     0.6    +      -       -      -
     251  ARG*     1.3    77.3    -      -       -      +
     271  ALA*     1.3    59.0    +      -       -      +
     291  VAL*     5.0     0.2    -      -       -      -
     301  GLU*     2.9    62.6    +      -       -      +
    167C  LYS*     4.0    18.6    -      -       -      +
    168C  PRO*     4.2     7.2    -      -       +      -
    170C  VAL*     3.7    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 27 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     101  ARG*     4.1    39.3    -      -       +      +
     111  THR*     4.0     8.5    +      -       -      +
     231  ARG      3.1    16.7    +      -       -      +
     241  VAL*     3.7     5.8    -      -       -      +
     261  VAL*     1.3    76.7    -      -       -      +
     281  ASP*     1.3    59.2    +      -       -      +
     301  GLU*     4.6     2.5    -      -       -      -
     311  ILE*     2.7    39.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 28 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     241  VAL*     2.9    37.1    +      -       -      +
     251  ARG*     3.8     8.7    -      -       -      +
     271  ALA*     1.3    76.5    -      -       -      +
     291  VAL*     1.3    64.8    +      -       +      +
     311  ILE*     2.9    25.4    -      -       -      +
     321  LYS*     3.2    10.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 29 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     251  ARG*     2.9    29.9    +      -       +      +
     261  VAL*     4.1     3.8    -      -       -      +
     281  ASP*     1.3    78.0    -      -       +      +
     301  GLU*     1.3    61.2    +      -       +      +
     321  LYS*     3.5     5.3    +      -       -      +
     331  HIS*     2.8    28.0    +      -       +      +
     691  TYR*     3.5    43.3    -      -       +      +
    166C  ASP*     4.9    11.4    -      -       +      +
    167C  LYS*     4.5    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 30 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     101  ARG*     4.7     9.0    -      -       -      -
     131  ARG*     2.9    32.4    +      -       -      -
     261  VAL*     2.9    32.6    +      -       -      +
     271  ALA*     4.0     2.7    -      -       -      +
     291  VAL*     1.3    76.4    -      -       +      +
     311  ILE*     1.3    60.1    +      -       -      +
     331  HIS*     3.2    15.5    -      -       +      -
     341  LYS*     2.9    63.7    +      -       -      +
   1651A    C      4.1     9.3    +      -       -      -
    167C  LYS*     2.6    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 31 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     101  ARG*     6.5     0.7    -      -       +      -
     271  ALA      2.7    20.6    +      -       -      +
     281  ASP*     2.9    23.3    -      -       -      +
     301  GLU*     1.3    69.0    -      -       -      +
     321  LYS*     1.3    82.5    +      -       +      +
     341  LYS*     3.0     8.3    +      -       -      +
     351  LYS*     3.0    36.4    +      -       +      +
    798A    G      5.1    12.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 32 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     281  ASP      3.2     8.2    +      -       -      +
     291  VAL*     3.7     8.7    -      -       -      +
     311  ILE*     1.3    83.0    -      -       +      +
     331  HIS*     1.3    62.8    +      -       -      +
     351  LYS*     3.0    44.1    +      -       -      +
     371  HIS*     3.1    25.0    -      -       -      -
     691  TYR      4.5     2.2    -      -       -      +
     701  GLN*     2.7    50.1    +      -       +      +
     711  PRO*     6.0     0.4    -      -       -      +
     721  GLU      5.1     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 33 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     291  VAL      2.8    20.4    +      -       -      +
     301  GLU*     3.1    29.8    -      -       +      +
     321  LYS*     1.3    77.0    -      -       -      +
     341  LYS*     1.3    61.6    +      -       +      -
     371  HIS*     3.2    16.9    +      -       -      -
     491  ARG*     3.0    64.6    +      -       +      +
     551  TRP*     3.7     9.5    -      +       -      -
     691  TYR*     3.1    42.8    +      +       +      +
   1651A    C      4.2    11.7    +      -       -      -
   1652A    C      5.2     0.2    +      -       -      -
    167C  LYS*     5.5     1.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 34 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     101  ARG*     4.3    10.3    +      -       -      +
     131  ARG*     6.1     0.2    -      -       -      +
     301  GLU*     2.9    51.6    +      -       -      +
     311  ILE*     3.0     5.8    +      -       -      +
     331  HIS*     1.3    84.1    -      -       +      +
     351  LYS*     1.3    67.7    +      -       -      +
     361  LYS*     3.8     1.0    +      -       -      +
     481  LYS*     5.6     6.4    -      -       -      -
    797A    A      3.2    30.6    +      -       +      +
    798A    G      5.1    15.0    -      -       -      +
   1650A    C      5.2    13.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 35 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     311  ILE*     3.0    26.7    +      -       +      +
     321  LYS*     3.0    48.1    +      -       +      +
     331  HIS      3.4     0.2    -      -       -      -
     341  LYS*     1.3    81.7    -      -       -      +
     361  LYS*     1.3    65.1    +      -       -      +
     371  HIS*     2.9    29.3    +      -       +      +
     471  LEU      4.3     2.3    -      -       -      +
     481  LYS*     6.0     0.7    -      -       -      +
----------------------------------------------------------
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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