Contacts of the helix formed by residues 246 - 258 (chain X) in PDB entry 6JM9


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 246 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105D  LYS*     5.4     0.9    -      -       -      -
    131X  PHE*     3.8    23.8    -      -       -      -
    243X  PHE      4.8     2.0    +      -       -      -
    244X  ALA      3.6     2.6    -      -       -      -
    245X  PHE*     1.4    77.9    -      -       -      +
    247X  PRO*     1.3    74.7    -      -       -      +
    248X  GLU*     3.3     3.8    +      -       -      -
    249X  VAL*     3.7     0.6    +      -       -      -
    250X  ASP*     3.2    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 247 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105D  LYS*     4.3    23.7    -      -       +      -
    106D  HIS*     4.9    16.2    -      -       +      +
    109D  SER*     3.7    26.5    -      -       -      +
    131X  PHE*     5.4     1.3    -      -       +      -
    246X  GLY*     1.3    85.2    -      -       -      +
    248X  GLU*     1.4    64.7    +      -       +      +
    250X  ASP*     3.2    18.6    +      -       +      +
    251X  HIS*     3.2    26.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 248 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246X  GLY*     3.3     1.2    -      -       -      -
    247X  PRO*     1.4    79.1    -      -       +      +
    249X  VAL*     1.4    65.9    +      -       +      +
    251X  HIS*     3.2    25.4    +      -       -      +
    252X  GLN*     3.5    26.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 249 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133X  PRO*     4.1    20.6    -      -       +      -
    224X  LEU*     3.7    35.7    -      -       +      -
    245X  PHE*     3.3    41.5    -      -       +      +
    246X  GLY*     4.0     2.0    -      -       -      +
    248X  GLU*     1.4    76.1    -      -       +      +
    250X  ASP*     1.4    64.2    +      -       -      +
    252X  GLN*     3.1    21.9    +      -       +      +
    253X  LEU*     3.2    24.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 250 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242X  ASN*     3.4    26.3    -      -       -      +
    243X  PHE      4.6     8.0    +      -       -      +
    245X  PHE*     4.6     5.0    +      -       -      +
    246X  GLY      3.2    19.3    +      -       -      +
    247X  PRO*     3.2    15.5    +      -       +      +
    249X  VAL*     1.4    74.8    -      -       -      +
    251X  HIS*     1.4    65.2    +      -       -      +
    253X  LEU*     3.6     8.0    +      -       -      +
    254X  LYS*     3.1    45.7    +      -       -      +
    270X  LYS*     3.4    31.0    +      -       -      +
    272X  PHE*     5.3     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 251 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247X  PRO*     3.2    17.9    +      -       +      -
    248X  GLU*     3.3    15.5    -      -       -      +
    249X  VAL      3.2     0.4    -      -       -      -
    250X  ASP*     1.4    79.2    -      -       +      +
    252X  GLN*     1.4    61.0    +      -       -      +
    254X  LYS*     3.4    24.9    +      -       +      +
    255X  GLU*     3.2    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 252 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224X  LEU*     4.3    15.8    -      -       +      +
    229X  ARG*     3.9     3.4    +      -       -      +
    248X  GLU*     3.5    31.9    +      -       -      +
    249X  VAL*     3.1    18.0    +      -       -      +
    251X  HIS*     1.4    77.1    -      -       +      +
    253X  LEU*     1.4    58.5    +      -       -      +
    255X  GLU*     3.5    25.3    -      -       -      +
    256X  ARG*     3.2    47.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 253 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162X  LEU*     4.5    15.0    -      -       +      -
    223X  PHE*     4.6    10.1    -      -       +      +
    224X  LEU*     3.6    23.8    -      -       +      -
    240X  VAL*     4.5     7.0    -      -       +      -
    242X  ASN*     3.6    36.6    -      -       +      +
    245X  PHE*     4.6     4.3    -      -       +      -
    249X  VAL*     3.2    32.2    +      -       +      +
    250X  ASP*     3.8     5.8    -      -       -      +
    252X  GLN*     1.4    70.3    -      -       -      +
    254X  LYS*     1.4    64.8    +      -       -      +
    255X  GLU      3.2     0.2    -      -       -      -
    256X  ARG*     3.0    24.3    +      -       -      +
    257X  PHE*     2.9    40.2    +      -       +      -
    272X  PHE*     5.3     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 254 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250X  ASP*     3.1    42.6    +      -       -      +
    251X  HIS*     3.5    26.7    +      -       +      +
    253X  LEU*     1.4    79.5    -      -       -      +
    255X  GLU*     1.4    57.9    +      -       +      +
    257X  PHE*     3.1    10.3    +      -       -      +
    258X  ALA*     3.1    22.3    +      -       -      +
    270X  LYS*     4.2    10.5    -      -       -      +
    271X  PRO      5.0     0.2    +      -       -      -
    272X  PHE*     3.8    51.3    -      -       +      +
    287X  ILE*     3.5    35.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 255 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229X  ARG*     3.3    23.1    +      -       -      +
    251X  HIS*     3.2    17.9    +      -       -      +
    252X  GLN*     3.5    21.1    -      -       -      +
    253X  LEU      3.2     0.2    -      -       -      -
    254X  LYS*     1.4    79.4    -      -       +      +
    256X  ARG*     1.3    56.6    +      -       -      +
    257X  PHE      3.4     0.2    -      -       -      -
    258X  ALA*     3.3    20.8    -      -       -      +
    259X  ASN*     3.5     9.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 256 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223X  PHE      4.2     7.0    -      -       -      -
    224X  LEU*     3.6    20.9    -      -       -      +
    225X  SER*     3.3    42.5    +      -       -      +
    226X  GLU*     4.8     3.0    +      -       -      -
    228X  TRP      4.9     0.4    -      -       -      -
    229X  ARG*     3.6    41.9    -      -       +      +
    232X  ILE*     3.7    40.9    -      -       +      +
    252X  GLN*     3.2    57.3    +      -       -      +
    253X  LEU*     3.0    16.3    +      -       +      +
    255X  GLU*     1.3    76.2    -      -       -      +
    257X  PHE*     1.4    62.4    +      -       +      +
    258X  ALA      3.2     0.7    -      -       -      -
    259X  ASN*     3.3    24.7    +      -       -      +
    260X  MET      4.0     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 257 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162X  LEU*     3.7    27.6    -      -       +      -
    232X  ILE*     4.4     6.3    -      -       +      -
    238X  ILE*     4.0    12.3    -      -       +      -
    240X  VAL*     3.8    21.8    -      -       +      -
    253X  LEU*     2.9    42.2    +      -       +      -
    254X  LYS*     3.1    10.7    +      -       +      +
    256X  ARG*     1.4    74.5    -      -       -      +
    258X  ALA*     1.4    57.7    +      -       -      +
    259X  ASN      3.3     0.4    -      -       -      -
    260X  MET*     3.1    46.9    +      -       -      +
    266X  ILE*     4.2    17.5    -      -       +      -
    272X  PHE*     3.4    34.8    -      +       -      -
    287X  ILE*     4.2    10.8    -      -       +      -
    290X  ILE*     4.2     6.9    -      -       -      +
    291X  MET*     4.9     4.5    -      -       +      -
    317X  ILE*     4.4     3.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 258 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254X  LYS      3.1     8.8    +      -       -      +
    255X  GLU*     3.3    20.9    -      -       -      +
    257X  PHE*     1.4    72.5    -      -       -      +
    259X  ASN*     1.4    65.5    +      -       -      +
    260X  MET      3.1     8.0    +      -       -      +
    287X  ILE*     3.7    14.3    -      -       +      +
    290X  ILE*     3.9    13.6    -      -       +      +
    319X  ARG*     4.6     5.2    +      -       -      -
----------------------------------------------------------
 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