Contacts of the helix formed by residues 710 - 731 (chain B) in PDB entry 1XR2


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 710 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413B  PRO*     4.0     2.7    -      -       -      -
    708B  THR      5.0     2.6    +      -       -      +
    709B  ARG*     1.3    82.6    -      -       -      +
    711B  TRP*     1.3    65.6    +      -       -      +
    712B  ASP*     4.1     9.9    -      -       +      +
    713B  GLU*     3.0    42.7    +      -       +      +
    714B  VAL*     3.0    15.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 711 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412B  PHE*     3.6    39.3    -      +       +      -
    413B  PRO*     3.7    44.7    +      -       +      +
    415B  THR*     4.2    24.7    -      -       +      +
    446B  ALA*     5.1     5.2    -      -       +      -
    449B  LEU*     3.5    31.9    -      -       +      -
    463B  PHE*     4.0    12.3    -      +       -      -
    710B  ASN*     1.3    73.1    -      -       -      +
    712B  ASP*     1.3    63.4    +      -       -      +
    714B  VAL*     4.2    11.7    -      -       +      -
    715B  ILE*     3.0    47.1    +      -       +      +
    718B  LEU*     6.0     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 712 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    710B  ASN*     3.1     7.5    -      -       +      +
    711B  TRP*     1.3    76.4    -      -       -      +
    713B  GLU*     1.3    63.9    +      -       +      +
    715B  ILE*     5.6     0.7    -      -       -      -
    716B  PRO*     3.0    23.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 713 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669B  TRP*     4.8     2.9    -      -       +      -
    674B  PRO*     3.6    36.9    -      -       -      +
    675B  ALA      5.6     0.4    -      -       -      +
    676B  VAL*     4.2     5.2    -      -       +      +
    709B  ARG*     2.9    35.0    +      -       -      -
    710B  ASN*     3.0    42.8    +      -       +      +
    712B  ASP*     1.3    84.1    -      -       +      +
    714B  VAL*     1.3    62.5    +      -       -      +
    716B  PRO*     3.4    10.7    -      -       -      +
    717B  SER*     2.8    25.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 714 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412B  PHE*     5.0     0.4    -      -       +      -
    413B  PRO*     3.6    23.1    -      -       +      -
    669B  TRP*     3.8    14.0    -      -       +      -
    706B  LEU*     3.6    22.0    -      -       +      -
    709B  ARG*     3.8    17.5    -      -       +      -
    710B  ASN      3.0    16.7    +      -       -      +
    711B  TRP*     3.2    21.7    +      -       +      +
    713B  GLU*     1.3    77.1    -      -       -      +
    715B  ILE*     1.3    58.7    +      -       +      +
    717B  SER*     3.3     3.1    +      -       -      -
    718B  LEU*     2.9    50.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 715 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449B  LEU*     4.0    35.7    -      -       +      -
    453B  ILE*     4.3     7.2    -      -       +      +
    711B  TRP*     3.0    30.2    +      -       +      +
    712B  ASP*     5.6     0.7    -      -       -      -
    714B  VAL*     1.3    75.8    -      -       +      +
    716B  PRO*     1.3    67.5    -      -       +      +
    718B  LEU*     3.2     9.0    +      -       +      +
    719B  ARG*     3.0    58.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 716 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    676B  VAL*     4.0    20.4    -      -       +      -
    712B  ASP*     3.0    29.2    -      -       -      +
    713B  GLU      3.4     9.6    -      -       -      +
    715B  ILE*     1.3    96.7    -      -       +      +
    717B  SER*     1.3    58.0    +      -       -      +
    719B  ARG*     3.5    10.6    +      -       +      +
    720B  ASN*     2.9    31.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 717 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669B  TRP*     3.6    35.1    +      -       -      +
    675B  ALA      4.3     1.0    +      -       -      -
    676B  VAL*     3.7    15.4    -      -       -      +
    677B  PRO*     3.4    22.6    -      -       -      +
    682B  MET*     4.5     3.5    -      -       -      +
    713B  GLU*     2.8    21.8    +      -       -      +
    714B  VAL      3.3     0.9    +      -       -      -
    715B  ILE      3.2     0.6    -      -       -      -
    716B  PRO*     1.3    78.4    -      -       -      +
    718B  LEU*     1.3    59.7    +      -       -      +
    720B  ASN*     3.2     7.3    +      -       -      +
    721B  MET*     2.9    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 718 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408B  THR*     4.3    18.4    -      -       +      -
    412B  PHE*     4.7     7.9    -      -       +      -
    449B  LEU*     6.3     2.0    -      -       +      -
    450B  GLN*     6.2     0.4    -      -       +      -
    453B  ILE*     3.9    16.2    -      -       +      -
    455B  LEU*     4.6    18.8    -      -       +      +
    669B  TRP*     3.3    32.5    -      -       +      -
    702B  PRO*     4.1    13.7    -      -       +      -
    706B  LEU*     4.7     2.2    -      -       +      -
    711B  TRP*     6.0     1.3    -      -       +      -
    714B  VAL*     2.9    35.3    +      -       +      +
    715B  ILE*     3.5     7.9    -      -       +      +
    717B  SER*     1.3    75.2    -      -       -      +
    719B  ARG*     1.3    64.7    +      -       -      +
    721B  MET*     3.1    13.5    +      -       +      +
    722B  VAL*     3.0    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 719 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449B  LEU*     5.2     3.4    -      -       -      +
    452B  GLU*     2.8    35.7    +      -       -      -
    453B  ILE*     3.7    36.3    +      -       +      +
    715B  ILE*     3.0    36.1    +      -       -      +
    716B  PRO*     3.7    10.1    -      -       -      +
    717B  SER      3.3     0.2    -      -       -      -
    718B  LEU*     1.3    75.4    -      -       -      +
    720B  ASN*     1.3    60.2    -      -       -      +
    722B  VAL*     3.3     4.8    +      -       -      +
    723B  ALA*     2.9    27.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 720 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    676B  VAL*     3.3    16.6    -      -       -      +
    677B  PRO      3.3    16.8    +      -       -      +
    678B  SER*     5.1     1.2    -      -       -      +
    679B  ILE*     4.0    20.2    -      -       +      +
    682B  MET*     3.3    21.4    -      -       +      +
    716B  PRO*     2.9    17.9    +      -       -      +
    717B  SER*     3.2     5.5    +      -       -      +
    718B  LEU      3.2     0.6    -      -       -      -
    719B  ARG*     1.3    77.0    -      -       -      +
    721B  MET*     1.3    64.6    +      -       -      +
    723B  ALA*     3.3     6.9    +      -       -      +
    724B  LEU*     2.9    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 721 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406B  THR*     4.3     4.7    -      -       +      -
    407B  THR      3.1    28.3    -      -       -      +
    455B  LEU*     3.9    23.3    -      -       +      -
    668B  VAL*     4.2     8.3    -      -       +      -
    669B  TRP*     5.0     4.3    -      -       +      -
    682B  MET*     3.7    12.7    -      -       -      +
    700B  ILE*     3.6    28.7    -      -       +      +
    701B  ASN*     3.5    27.6    -      -       -      +
    702B  PRO*     3.7    14.6    -      -       +      -
    717B  SER      2.9    12.8    +      -       -      +
    718B  LEU*     3.1    18.8    +      -       +      +
    720B  ASN*     1.3    78.6    -      -       -      +
    722B  VAL*     1.3    61.3    +      -       -      +
    724B  LEU*     3.4     4.7    +      -       -      +
    725B  ALA*     3.1    22.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 722 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406B  THR*     4.4     7.9    -      -       +      +
    453B  ILE*     3.7    34.3    -      -       +      +
    454B  GLY*     3.9    20.0    -      -       -      +
    455B  LEU*     4.0    17.0    -      -       +      -
    718B  LEU      3.0    13.6    +      -       -      +
    719B  ARG*     3.6     8.3    -      -       -      +
    720B  ASN      3.2     0.2    -      -       -      -
    721B  MET*     1.3    75.6    -      -       +      +
    723B  ALA*     1.3    66.4    +      -       -      +
    725B  ALA*     3.1     8.1    +      -       -      +
    726B  LYS*     2.9    25.1    +      -       +      +
    729B  ARG*     5.4     6.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 723 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    679B  ILE*     3.7    23.1    -      -       +      -
    719B  ARG      2.9    16.7    +      -       -      +
    720B  ASN*     3.6     7.6    -      -       -      +
    722B  VAL*     1.3    76.6    -      -       -      +
    724B  LEU*     1.3    63.6    +      -       -      +
    726B  LYS*     3.2     9.1    +      -       -      +
    727B  GLU*     3.0    27.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 724 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    679B  ILE*     3.9    20.8    -      -       +      +
    682B  MET*     4.1    20.6    -      -       +      -
    683B  ARG*     3.8    38.6    -      -       +      +
    686B  VAL*     3.7    17.0    -      -       +      -
    700B  ILE*     3.5    28.9    -      -       +      -
    720B  ASN      2.9    18.1    +      -       -      +
    721B  MET*     3.6     6.7    -      -       -      +
    723B  ALA*     1.3    74.0    -      -       -      +
    725B  ALA*     1.3    69.1    +      -       -      +
    727B  GLU*     2.8     7.3    +      -       +      +
    728B  MET*     2.8    32.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 725 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    404B  PHE*     3.9    15.3    -      -       -      +
    406B  THR*     3.5    31.0    -      -       +      -
    700B  ILE*     3.9    17.7    -      -       +      -
    721B  MET      3.1     6.1    +      -       -      +
    722B  VAL*     3.1     8.0    +      -       -      +
    724B  LEU*     1.3    79.7    -      -       -      +
    726B  LYS*     1.3    63.6    +      -       -      +
    728B  MET*     3.2     3.1    +      -       -      +
    729B  ARG*     3.0    36.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 726 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722B  VAL*     2.9    15.8    +      -       +      +
    723B  ALA*     3.4    12.1    -      -       -      +
    725B  ALA*     1.3    77.0    -      -       -      +
    727B  GLU*     1.3    63.3    +      -       +      +
    729B  ARG*     3.2    21.8    +      -       -      +
    730B  GLU*     3.2    19.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 727 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    679B  ILE*     3.6    31.9    -      -       -      +
    683B  ARG*     2.5    44.0    +      -       -      +
    723B  ALA*     3.0    14.9    +      -       -      +
    724B  LEU*     2.8    10.8    +      -       +      +
    726B  LYS*     1.3    75.7    -      -       +      +
    728B  MET*     1.3    57.3    +      -       -      +
    730B  GLU*     2.9    10.4    +      -       -      +
    731B  LYS*     2.9    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 728 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403B  LEU*     5.4     0.5    -      -       -      +
    404B  PHE*     3.5    29.4    -      -       +      -
    683B  ARG*     4.3    15.0    -      -       -      -
    686B  VAL*     3.4    32.8    -      -       +      -
    687B  GLU*     4.1    16.8    -      -       +      -
    690B  LEU*     3.8    17.9    -      -       +      -
    700B  ILE*     4.8     0.9    -      -       +      -
    724B  LEU*     2.8    47.7    +      -       +      +
    725B  ALA*     3.6     6.1    -      -       -      +
    727B  GLU*     1.3    72.9    -      -       -      +
    729B  ARG*     1.3    63.5    +      -       -      +
    731B  LYS*     3.1    28.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 729 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402B  PRO*     3.5    25.1    -      -       -      +
    403B  LEU*     2.8    67.3    +      -       +      +
    404B  PHE*     3.0    29.3    +      -       +      -
    406B  THR*     5.5     1.2    +      -       -      +
    456B  ASP*     3.5    16.2    +      -       -      -
    722B  VAL*     5.4     6.1    +      -       -      +
    725B  ALA*     3.0    28.1    +      -       -      +
    726B  LYS*     3.5    22.4    -      -       -      +
    727B  GLU      3.2     0.2    -      -       -      -
    728B  MET*     1.3    75.6    -      -       -      +
    730B  GLU*     1.3    62.1    +      -       -      +
    731B  LYS      4.5     1.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 730 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    726B  LYS      3.2     9.8    +      -       -      +
    727B  GLU*     2.9    12.8    +      -       -      +
    729B  ARG*     1.3    76.5    -      -       -      +
    731B  LYS*     1.3    67.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 731 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    727B  GLU      2.9    12.5    +      -       -      +
    728B  MET*     3.1    29.5    +      -       +      +
    729B  ARG      4.5     2.0    -      -       -      -
    730B  GLU*     1.3    81.3    -      -       -      +
----------------------------------------------------------
 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