Contacts of the helix formed by residues 663 - 682 (chain A) in PDB entry 4U6R


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 LEU 663 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    661A  LEU      3.2     0.8    +      -       -      -
    662A  GLY*     1.3    73.6    -      -       -      -
    664A  GLU*     1.3    63.6    +      -       -      +
    665A  PRO*     3.4     4.0    -      -       -      -
    666A  ILE*     3.2    27.0    +      -       +      +
    667A  THR*     3.1    25.0    +      -       -      +
    834A  SER*     6.5     1.8    -      -       -      -
   1007A  EDO      5.6     0.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 664 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    652A  TYR*     2.7    31.4    +      -       +      +
    656A  LYS*     5.1     1.7    +      -       -      -
    661A  LEU*     3.1    22.3    +      -       -      +
    663A  LEU*     1.3    76.9    -      -       -      +
    665A  PRO*     1.3    65.8    -      -       -      +
    667A  THR*     3.0    13.1    +      -       +      -
    668A  LEU*     2.9    26.2    +      -       +      +
    703A  GLY      4.6     2.9    -      -       -      +
    704A  LYS*     5.3     1.0    -      -       -      -
    705A  ILE*     3.3    36.9    +      -       +      +
   1007A  EDO      3.2    37.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 665 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    652A  TYR*     3.9    20.9    -      -       +      +
    658A  PHE*     3.9    27.4    -      -       +      -
    661A  LEU*     3.9     9.6    -      -       +      +
    662A  GLY      3.6    12.6    -      -       -      +
    663A  LEU      3.4     4.9    -      -       -      -
    664A  GLU*     1.3    94.5    -      -       +      +
    666A  ILE*     1.3    60.5    +      -       +      +
    668A  LEU*     3.3     8.6    +      -       +      +
    669A  LEU*     3.1    27.7    +      -       -      +
    767A  VAL*     3.7    27.4    -      -       +      +
    768A  ILE*     5.9     1.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 666 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    662A  GLY      5.5     2.7    -      -       -      +
    663A  LEU*     3.2    29.1    +      -       +      +
    664A  GLU      3.2     0.6    -      -       -      -
    665A  PRO*     1.3    78.9    -      -       +      +
    667A  THR*     1.3    58.8    +      -       -      +
    669A  LEU*     3.3     9.0    +      -       -      +
    670A  GLN*     3.0    21.8    +      -       -      +
    768A  ILE*     4.6    14.1    -      -       +      -
    831A  PHE*     4.1    39.0    -      -       +      +
    832A  PHE*     3.5    23.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 667 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    663A  LEU*     3.1    17.6    +      -       -      +
    664A  GLU*     3.0    15.7    +      -       +      -
    666A  ILE*     1.3    74.9    -      -       -      +
    668A  LEU*     1.3    61.7    +      -       +      +
    670A  GLN*     3.3    18.6    +      -       -      +
    671A  GLN*     2.9    51.1    +      -       +      +
    705A  ILE      5.7     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 668 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    649A  LEU*     4.2    13.0    -      -       +      -
    652A  TYR*     3.6    46.9    -      -       +      +
    664A  GLU*     2.9    17.6    +      -       +      +
    665A  PRO*     3.3     8.0    +      -       +      +
    667A  THR*     1.3    77.8    -      -       +      +
    669A  LEU*     1.3    55.2    +      -       +      +
    671A  GLN*     3.5    19.0    +      -       -      +
    672A  THR*     2.8    37.1    +      -       -      -
    696A  ILE*     4.0    17.9    -      -       +      -
    705A  ILE*     4.3    14.6    -      -       +      +
    706A  LYS*     3.9     9.4    -      -       -      -
    707A  ALA*     3.7    22.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 669 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    649A  LEU*     4.8     3.8    -      -       +      -
    665A  PRO      3.1    15.0    +      -       -      +
    666A  ILE*     3.3    12.8    -      -       -      +
    667A  THR      3.2     0.2    -      -       -      -
    668A  LEU*     1.3    78.6    -      -       +      +
    670A  GLN*     1.3    53.8    +      -       -      +
    672A  THR*     3.5     6.2    +      -       -      +
    673A  THR*     2.8    38.0    +      -       -      -
    763A  VAL*     4.4     8.3    -      -       +      +
    764A  PHE*     3.8    45.6    -      -       +      +
    767A  VAL*     3.4    37.0    -      -       +      -
    768A  ILE*     4.3     4.7    -      -       +      -
    831A  PHE*     4.0    26.5    -      -       +      -
    832A  PHE*     4.0     8.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 670 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    666A  ILE      3.0     9.1    +      -       -      +
    667A  THR*     3.3    21.5    +      -       -      +
    669A  LEU*     1.3    72.1    -      -       -      +
    671A  GLN*     1.3    63.0    +      -       +      +
    673A  THR*     3.5     3.6    +      -       -      -
    674A  SER*     2.9    31.7    +      -       -      -
    827A  LEU*     3.7    17.6    +      -       +      +
    832A  PHE*     3.4    49.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 671 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624A  ASN*     3.2    37.0    -      -       -      +
    667A  THR*     2.9    37.7    +      -       +      +
    668A  LEU*     3.5    15.4    -      -       -      +
    669A  LEU      3.4     0.2    -      -       -      -
    670A  GLN*     1.3    75.3    -      -       +      +
    672A  THR*     1.3    61.3    +      -       -      +
    674A  SER*     3.3     3.1    +      -       -      -
    675A  GLY      2.9    24.6    +      -       -      -
    704A  LYS*     6.3     0.8    -      -       -      +
    705A  ILE      4.0     6.3    +      -       -      -
    706A  LYS*     3.1    21.9    -      -       -      +
    707A  ALA*     3.0    24.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 672 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624A  ASN*     5.2     1.6    -      -       -      -
    649A  LEU*     5.2     2.6    -      -       -      +
    668A  LEU*     2.8    22.8    +      -       -      +
    669A  LEU*     3.6     8.9    -      -       +      -
    671A  GLN*     1.3    75.9    -      -       -      +
    673A  THR*     1.3    59.1    +      -       -      +
    675A  GLY      3.2     2.3    +      -       -      -
    676A  LEU*     2.9    25.4    +      -       +      +
    689A  LEU*     5.0     9.4    -      -       +      -
    694A  ILE*     3.5    35.4    -      -       +      +
    707A  ALA*     3.5    16.9    -      -       -      +
    709A  ILE*     3.3    27.4    -      -       +      +
    760A  ALA*     6.0     3.4    -      -       +      -
    763A  VAL*     5.7     2.5    -      -       +      -
    764A  PHE*     5.9     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 673 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669A  LEU      2.8    20.3    +      -       -      -
    670A  GLN*     3.7     5.8    -      -       -      -
    672A  THR*     1.3    77.9    -      -       -      +
    674A  SER*     1.3    57.0    +      -       -      +
    676A  LEU*     3.3    13.3    +      -       +      +
    677A  ALA*     2.8    27.0    +      -       -      +
    757A  ILE*     6.2     0.4    -      -       +      -
    760A  ALA*     5.6     1.6    -      -       -      +
    764A  PHE*     3.2    24.7    -      -       +      -
    812A  MET*     6.1     0.4    -      -       +      -
    823A  ALA*     3.6    30.5    -      -       +      +
    826A  VAL*     3.9    18.2    -      -       +      -
    827A  LEU*     3.9    12.8    -      -       +      -
    832A  PHE*     4.4     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 674 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622A  HIS*     3.3    25.7    +      -       -      -
    624A  ASN*     3.8     5.4    +      -       -      -
    670A  GLN*     2.9    20.8    +      -       -      -
    671A  GLN*     3.4     8.1    -      -       -      -
    673A  THR*     1.3    75.3    -      -       -      +
    675A  GLY*     1.3    63.0    +      -       -      +
    677A  ALA*     3.2     3.6    +      -       -      +
    678A  HIS*     3.1    18.2    +      -       -      +
    827A  LEU*     4.0    20.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 675 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622A  HIS*     3.9    14.9    -      -       -      -
    624A  ASN      3.8    20.9    -      -       -      -
    625A  VAL*     4.0     3.9    -      -       -      +
    671A  GLN      2.9    11.3    +      -       -      -
    672A  THR      3.6     4.0    -      -       -      -
    674A  SER*     1.3    74.9    -      -       -      +
    676A  LEU*     1.3    60.5    +      -       -      +
    678A  HIS*     3.3     4.9    +      -       -      +
    679A  LEU*     3.1    26.5    +      -       -      +
    709A  ILE*     3.9     6.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 676 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    672A  THR*     2.9    13.2    +      -       +      +
    673A  THR*     3.3    15.7    -      -       +      +
    675A  GLY*     1.3    74.9    -      -       -      +
    677A  ALA*     1.3    59.0    +      -       -      +
    679A  LEU*     3.3     7.6    +      -       +      +
    680A  HIS*     3.0    57.5    +      -       +      +
    686A  HIS*     4.5    10.3    -      -       +      -
    689A  LEU*     3.9    23.1    -      -       +      -
    709A  ILE*     3.5    12.0    -      -       +      +
    756A  ASP*     3.8    34.3    -      -       +      +
    757A  ILE*     4.3    13.0    -      -       +      -
    760A  ALA*     4.5     7.6    -      -       +      -
    823A  ALA*     4.5     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 677 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    673A  THR      2.8    19.0    +      -       -      +
    674A  SER      3.2     6.4    +      -       -      +
    676A  LEU*     1.3    71.3    -      -       -      +
    678A  HIS*     1.3    65.9    +      -       -      +
    680A  HIS*     3.4     4.0    +      -       -      +
    681A  SER*     3.0    26.0    +      -       -      -
    823A  ALA*     3.8    19.7    -      -       +      +
    824A  LYS*     4.2    27.5    -      -       +      -
    827A  LEU*     4.2    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 678 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619A  SER*     2.9    31.9    +      -       -      -
    621A  GLU*     4.2    19.5    -      -       +      +
    622A  HIS*     3.5    45.1    -      +       +      +
    625A  VAL*     4.2     5.2    -      -       +      -
    674A  SER      3.1     7.6    +      -       -      +
    675A  GLY      3.4     9.0    -      -       -      +
    677A  ALA*     1.3    77.0    -      -       -      +
    679A  LEU*     1.3    64.4    +      -       +      +
    681A  SER*     2.6    26.8    +      -       -      -
    682A  LEU*     3.3    33.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 679 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619A  SER*     4.0    22.0    -      -       -      -
    625A  VAL*     3.7    30.3    -      -       +      -
    675A  GLY      3.1     7.5    +      -       -      +
    676A  LEU*     3.6    13.5    -      -       +      +
    678A  HIS*     1.3    81.3    -      -       +      +
    680A  HIS*     1.3    64.7    +      -       +      +
    682A  LEU*     3.0    15.0    +      -       -      +
    683A  ASN      3.5     0.2    +      -       -      -
    684A  ILE*     3.0    44.8    +      -       +      +
    686A  HIS*     4.4    18.8    -      -       +      -
    709A  ILE*     4.2    15.5    -      -       +      -
    712A  PHE*     3.8    25.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 680 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    676A  LEU*     3.0    36.3    +      -       +      +
    677A  ALA*     3.9     6.1    -      -       -      +
    678A  HIS      3.3     0.2    -      -       -      -
    679A  LEU*     1.3    77.3    -      -       +      +
    681A  SER*     1.3    57.0    +      -       -      +
    683A  ASN*     3.1    16.5    +      -       -      -
    684A  ILE      3.2    20.6    -      -       -      -
    753A  TYR*     3.5    43.5    +      +       +      +
    756A  ASP*     2.8    33.3    +      -       +      +
    757A  ILE*     4.5     8.5    -      -       +      -
    823A  ALA*     4.3    11.3    +      -       +      +
   1008A  EPE      3.3    39.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 681 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    677A  ALA      3.0    15.3    +      -       -      -
    678A  HIS*     2.6    26.5    +      -       -      -
    680A  HIS*     1.3    75.5    -      -       -      +
    682A  LEU*     1.3    63.4    +      -       -      +
    683A  ASN*     3.4     1.6    -      -       -      +
    824A  LYS*     4.6    15.9    -      -       -      -
   1008A  EPE      3.1    28.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 682 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618A  GLU*     3.5    30.3    -      -       +      +
    619A  SER*     3.7    15.0    -      -       -      -
    678A  HIS*     3.3    35.9    +      -       +      +
    679A  LEU*     3.0     9.5    +      -       -      +
    681A  SER*     1.3    83.7    +      -       -      +
    683A  ASN*     1.3    67.8    +      -       -      +
    684A  ILE*     3.3    18.5    +      -       +      +
    717A  LYS*     3.9    14.0    +      -       -      +
----------------------------------------------------------
 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