Contacts of the helix formed by residues 75 - 90 (chain K) in PDB entry 6NRB


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 PRO 75 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44I  MET*     6.0     3.4    -      -       -      -
     25K  GLY*     3.2    29.4    -      -       -      +
     26K  ASN*     4.7     7.6    -      -       -      +
     28K  ASN*     6.2     0.4    -      -       +      -
     29K  ALA*     3.9    10.3    -      -       +      +
     73K  GLN*     2.8    23.8    -      -       +      +
     74K  HIS*     1.4   116.2    -      -       +      +
     76K  ALA*     1.3    52.9    +      -       -      +
     77K  ALA      2.6     5.0    +      -       -      -
     78K  LYS*     2.5    32.2    +      -       -      +
     79K  SER*     4.4     2.2    -      -       -      -
    516K  LEU*     6.2     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 76 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25K  GLY      4.5     0.2    +      -       -      -
     26K  ASN*     3.7     9.8    -      -       -      +
     29K  ALA*     4.1     1.0    -      -       -      +
     30K  ALA*     3.6    27.4    -      -       +      +
     33K  ILE*     4.6     0.7    -      -       -      -
     75K  PRO*     1.3    74.9    -      -       -      +
     77K  ALA*     1.3    58.2    +      -       -      +
     78K  LYS      3.0     0.7    -      -       -      -
     79K  SER*     3.3    13.0    -      -       -      +
     80K  MET*     2.3    44.0    +      -       +      +
    516K  LEU*     3.6    29.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 77 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29K  ALA*     3.3    24.2    -      -       +      +
     33K  ILE*     3.7    17.5    -      -       +      +
     67K  LEU*     4.0     9.8    -      -       +      +
     71K  GLN      5.7     0.2    -      -       -      +
     72K  VAL*     3.4    10.8    -      -       +      +
     73K  GLN*     3.4    30.7    -      -       +      +
     75K  PRO      2.6     4.9    +      -       -      -
     76K  ALA*     1.3    72.9    -      -       -      +
     78K  LYS*     1.3    59.1    +      -       -      +
     81K  ILE*     3.3    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 78 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49I  ILE      3.0    27.0    +      -       -      -
     50I  GLY*     4.1    11.8    -      -       -      +
     52I  VAL*     3.8    35.5    -      -       +      +
     72K  VAL*     3.7    11.4    -      -       +      -
     73K  GLN      3.0     9.2    +      -       -      +
     74K  HIS*     3.6    25.3    +      -       -      +
     75K  PRO      2.5    16.6    +      -       -      +
     77K  ALA*     1.3    71.5    -      -       -      +
     79K  SER*     1.3    59.0    +      -       -      +
     81K  ILE*     3.5     8.0    +      -       -      +
     82K  GLU*     3.1    48.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 79 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44I  MET*     4.4    19.4    -      -       -      +
     74K  HIS      5.1     1.2    +      -       -      -
     75K  PRO      4.7     1.9    +      -       -      -
     76K  ALA*     2.8    23.6    +      -       -      +
     78K  LYS*     1.3    73.3    -      -       -      +
     80K  MET*     1.3    58.3    +      -       -      +
     81K  ILE      3.1     2.5    -      -       -      -
     82K  GLU*     2.8    21.9    +      -       -      +
     83K  ILE*     2.7    36.6    +      -       -      +
    512K  THR*     4.6    14.6    -      -       -      -
    515K  LEU*     5.9     0.6    -      -       -      +
    516K  LEU*     4.5     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 80 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30K  ALA*     3.5    32.1    -      -       +      -
     33K  ILE*     3.9    15.3    -      -       +      -
     64K  ASN*     3.4     3.2    +      -       -      -
     76K  ALA*     2.3    46.2    +      -       +      +
     79K  SER      1.3    66.7    -      -       -      -
     81K  ILE*     1.3    56.1    +      -       -      +
     83K  ILE*     4.0     9.4    -      -       -      -
     84K  SER*     2.9    29.3    +      -       -      -
     99K  ILE*     3.2    24.6    -      -       +      +
    102K  ALA*     3.5    34.1    -      -       +      -
    103K  GLY*     3.8     4.0    -      -       -      +
    106K  LEU*     5.6     1.8    -      -       +      -
    512K  THR*     3.6    25.4    -      -       +      -
    516K  LEU*     3.9     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 81 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64K  ASN*     3.2    25.6    -      -       +      +
     67K  LEU*     3.6    24.9    -      -       +      -
     68K  ARG*     4.4    13.9    -      -       +      +
     72K  VAL*     4.1    15.3    -      -       +      -
     77K  ALA      3.3    19.4    +      -       -      +
     78K  LYS*     3.5     8.7    +      -       -      +
     79K  SER      3.1     0.2    -      -       -      -
     80K  MET*     1.3    75.6    -      -       -      +
     82K  GLU*     1.3    56.0    +      -       +      +
     84K  SER*     3.1     2.8    +      -       -      -
     85K  ARG*     2.5    68.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 82 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52I  VAL*     5.5     3.3    -      -       -      +
     78K  LYS*     3.1    39.5    +      -       +      +
     79K  SER*     2.8    27.6    +      -       -      +
     81K  ILE*     1.3    73.3    -      -       +      +
     83K  ILE*     1.3    52.1    +      -       +      +
     85K  ARG*     2.9    11.4    +      -       -      +
     86K  THR*     2.6    36.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 83 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  SER*     2.7    22.6    +      -       -      +
     80K  MET*     4.0    17.9    -      -       -      +
     82K  GLU*     1.3    74.5    -      -       +      +
     84K  SER*     1.3    52.7    +      -       -      +
     86K  THR*     3.1    23.1    -      -       +      +
     87K  GLN*     2.7    31.0    +      -       -      +
     98K  VAL*     3.9    15.0    -      -       +      -
    508K  THR*     3.1    35.9    -      -       +      +
    511K  GLU*     4.6     8.1    -      -       +      -
    512K  THR*     3.0    29.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 84 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64K  ASN*     3.4    16.8    -      -       -      -
     80K  MET      2.9    22.6    +      -       -      -
     81K  ILE      3.1     2.3    +      -       -      -
     83K  ILE*     1.3    78.6    -      -       -      +
     85K  ARG*     1.3    54.4    +      -       -      +
     87K  GLN*     2.8     7.2    +      -       -      -
     88K  ASP*     2.3    33.4    +      -       -      -
     95K  THR*     3.1    29.2    +      -       -      +
     98K  VAL*     3.8     5.7    -      -       -      +
     99K  ILE*     3.0    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 85 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62K  ASP*     4.2     5.0    +      -       -      -
     64K  ASN*     3.2    42.5    +      -       -      +
     68K  ARG*     3.1    52.0    -      -       -      +
     81K  ILE*     2.5    40.4    +      -       +      +
     82K  GLU*     3.2    10.1    -      -       -      +
     84K  SER*     1.3    72.6    -      -       -      +
     86K  THR*     1.3    53.6    +      -       -      +
     88K  ASP*     3.4    22.2    +      -       -      +
     89K  GLU*     2.7    46.9    +      -       +      +
     95K  THR*     5.4     2.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 86 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82K  GLU      2.6    20.2    +      -       -      -
     83K  ILE*     3.1    32.9    -      -       +      +
     85K  ARG*     1.3    73.9    -      -       -      +
     87K  GLN*     1.3    57.6    +      -       -      +
     89K  GLU*     3.5    16.9    +      -       -      +
     90K  GLU*     3.3    36.3    +      -       +      +
    508K  THR*     4.2     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 87 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83K  ILE      2.7    17.6    +      -       -      +
     84K  SER*     2.8    13.4    +      -       -      +
     86K  THR*     1.3    72.9    -      -       -      +
     88K  ASP*     1.3    61.7    +      -       -      +
     89K  GLU      3.6     0.3    +      -       -      -
     90K  GLU*     3.7     7.2    +      -       -      +
     91K  VAL*     3.2    21.0    +      -       -      +
     92K  GLY      3.6    13.2    +      -       -      -
     93K  ASP      3.2    28.7    +      -       -      +
     94K  GLY      3.6     0.2    -      -       -      -
     95K  THR*     3.5    10.3    -      -       +      +
     98K  VAL*     3.2    21.3    -      -       +      +
    504K  GLN*     3.2    27.9    -      -       -      +
    505K  THR*     3.9     8.0    -      -       -      +
    508K  THR*     2.5    32.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 88 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84K  SER      2.3    27.5    +      -       -      +
     85K  ARG*     3.0    28.2    +      -       -      +
     87K  GLN*     1.3    70.6    -      -       -      +
     89K  GLU*     1.3    64.5    +      -       +      +
     92K  GLY*     3.4    21.7    -      -       -      -
     95K  THR*     3.4    14.9    -      -       +      +
    389K  ARG*     4.2    13.0    +      -       -      -
    392K  GLN*     4.8     7.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 89 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85K  ARG*     2.7    26.1    +      -       +      +
     86K  THR*     3.9    13.4    +      -       -      +
     87K  GLN      3.3     0.2    -      -       -      -
     88K  ASP*     1.3    80.7    -      -       +      +
     90K  GLU*     1.3    67.4    +      -       +      +
     92K  GLY      4.8     0.2    +      -       -      -
    195K  ILE*     5.8     5.4    -      -       -      +
    196K  LYS*     5.8     4.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 90 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86K  THR*     3.3    34.3    +      -       +      +
     87K  GLN*     3.7     3.9    +      -       -      +
     88K  ASP      3.4     0.6    -      -       -      -
     89K  GLU*     1.3    85.6    -      -       +      +
     91K  VAL*     1.3    72.0    +      -       +      +
    195K  ILE*     5.4    10.0    -      -       -      +
    196K  LYS*     5.9     2.3    -      -       -      -
    399K  ARG*     5.3     9.2    +      -       -      -
    504K  GLN*     2.8    32.4    -      -       +      +
    507K  LYS*     4.2     9.4    +      -       -      -
    508K  THR*     4.3     8.8    -      -       -      +
----------------------------------------------------------
 Back to top of page


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