Contacts of the helix formed by residues 326 - 343 (chain B) in PDB entry 1H1Q


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 326 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322B  GLN*     2.9    20.0    +      -       +      +
    324B  PRO*     3.2     5.3    +      -       +      +
    325B  ALA*     1.3    73.4    -      -       -      +
    327B  CYS*     1.3    64.8    +      -       -      +
    328B  LYS*     2.8    26.7    +      -       -      +
    329B  VAL*     3.1    18.8    +      -       +      -
    330B  GLU*     3.1    23.3    +      -       -      +
    364B  LEU*     6.2     0.2    -      -       +      -
    367B  VAL*     3.9     8.9    -      -       -      +
    368B  THR*     3.7    23.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325B  ALA*     3.9     4.2    +      -       +      -
    326B  ASN*     1.3    75.9    +      -       -      +
    328B  LYS*     1.3    59.9    +      -       -      +
    330B  GLU*     4.0    13.1    -      -       +      +
    331B  SER*     3.3    23.0    +      -       -      -
    419B  HIS*     2.9    46.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 328 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  ASN*     2.8    15.3    +      -       -      +
    327B  CYS*     1.3    70.3    -      -       -      +
    329B  VAL*     1.3    57.1    +      -       -      +
    331B  SER*     3.3     0.8    +      -       -      -
    332B  LEU*     2.6    39.2    +      -       -      +
    367B  VAL*     3.8    23.9    -      -       +      +
    419B  HIS*     4.5    14.6    -      -       +      +
    421B  VAL*     3.6    20.8    -      -       +      +
    424B  LEU*     4.0    25.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 329 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322B  GLN*     3.4    15.0    -      -       -      +
    326B  ASN*     3.3    30.1    -      -       +      +
    328B  LYS*     1.3    77.1    -      -       -      +
    330B  GLU*     1.3    65.4    +      -       -      +
    332B  LEU*     4.8     0.9    -      -       -      -
    333B  ALA*     3.0    19.8    +      -       -      +
    360B  PHE*     3.7    15.5    -      -       +      -
    363B  ALA*     3.4    10.2    -      -       +      +
    364B  LEU*     3.6    37.9    -      -       +      +
    367B  VAL*     3.8    20.4    -      -       +      -
    368B  THR*     3.9    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 330 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319B  PHE*     3.2    44.6    -      -       +      +
    322B  GLN*     2.5    31.7    +      -       -      +
    325B  ALA*     3.8    13.7    -      -       -      +
    326B  ASN      3.1     9.8    +      -       -      +
    327B  CYS*     4.0    13.0    -      -       -      +
    329B  VAL*     1.3    73.3    -      -       -      +
    331B  SER*     1.3    58.9    +      -       -      +
    333B  ALA      3.0     2.6    +      -       -      -
    334B  MET*     3.0    35.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 331 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327B  CYS      3.3    16.1    +      -       -      -
    328B  LYS      3.7     2.9    -      -       -      -
    329B  VAL      3.2     0.2    -      -       -      -
    330B  GLU*     1.3    78.3    -      -       -      +
    332B  LEU*     1.3    63.7    +      -       -      +
    334B  MET*     3.3    12.2    -      -       -      +
    335B  PHE      3.2    17.3    +      -       -      -
    413B  TYR*     3.6     3.8    -      -       -      -
    417B  LYS      4.4     0.3    +      -       -      -
    418B  TYR*     3.1    48.9    -      -       -      +
    419B  HIS*     3.4     7.9    +      -       -      -
    421B  VAL*     3.6    11.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 332 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328B  LYS      2.6    21.0    +      -       -      +
    329B  VAL      4.1     2.7    -      -       -      +
    331B  SER*     1.3    71.9    -      -       -      +
    333B  ALA*     1.3    62.2    +      -       -      +
    335B  PHE*     3.5    24.1    +      -       +      -
    336B  LEU*     3.3    30.1    +      -       +      +
    363B  ALA*     4.0    14.8    -      -       +      -
    366B  THR*     3.8    28.5    -      -       +      +
    367B  VAL*     4.0     8.7    -      -       +      -
    398B  TYR*     3.6    30.5    -      -       +      +
    421B  VAL*     3.7    27.5    -      -       +      +
    424B  LEU*     4.3     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 333 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315B  LEU*     3.7    18.0    -      -       +      +
    319B  PHE*     3.6    21.1    -      -       +      -
    329B  VAL      3.0    13.8    +      -       -      +
    330B  GLU      3.0     8.7    +      -       -      +
    332B  LEU*     1.3    72.3    -      -       -      +
    334B  MET*     1.3    60.1    +      -       -      +
    336B  LEU*     3.3     2.9    +      -       -      +
    337B  GLY*     2.9    27.5    +      -       -      -
    359B  ALA*     3.7    26.1    -      -       -      +
    360B  PHE*     4.2     3.4    -      -       +      -
    363B  ALA*     3.6     5.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 334 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229B  ASN*     3.5    33.0    -      -       +      +
    233B  HIS*     5.0     6.0    -      -       +      -
    312B  ASN*     3.6    24.7    -      -       +      +
    315B  LEU*     3.9    11.1    -      -       +      +
    319B  PHE*     4.0    17.9    -      -       +      -
    330B  GLU*     3.0    16.5    +      -       -      +
    331B  SER*     3.3    14.8    -      -       -      +
    333B  ALA*     1.3    75.4    -      -       -      +
    335B  PHE*     1.3    54.9    +      -       -      +
    337B  GLY*     3.7     0.5    +      -       -      -
    338B  GLU*     2.9    31.2    +      -       -      +
    413B  TYR*     3.6    11.0    +      -       +      +
    418B  TYR*     4.8    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 335 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331B  SER      3.2     4.6    +      -       -      +
    332B  LEU*     3.6    29.8    -      -       +      +
    333B  ALA      3.3     0.2    -      -       -      -
    334B  MET*     1.3    79.7    -      -       -      +
    336B  LEU*     1.3    67.0    +      -       +      +
    338B  GLU*     3.6     1.9    -      -       -      +
    339B  LEU*     2.8    53.2    +      -       +      +
    398B  TYR*     4.3    14.1    -      +       -      -
    401B  ALA*     4.8     1.8    -      -       +      -
    409B  ILE*     3.8     6.4    -      -       +      +
    410B  ARG*     3.8    34.5    -      -       +      -
    413B  TYR*     3.3    47.5    -      +       +      -
    421B  VAL*     4.3     2.2    -      -       +      -
    422B  SER*     3.7    28.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 336 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332B  LEU*     3.3    24.5    -      -       +      +
    333B  ALA      3.3     3.1    +      -       -      +
    335B  PHE*     1.3    85.6    -      -       +      +
    337B  GLY*     1.4    67.9    +      -       -      +
    338B  GLU      3.0     0.7    -      -       -      -
    339B  LEU*     3.2     8.5    +      -       +      +
    340B  SER*     2.9    18.7    +      -       -      -
    359B  ALA*     3.9    18.4    -      -       +      +
    362B  LEU*     3.9    31.6    -      -       +      -
    363B  ALA      4.0     7.4    -      -       -      +
    394B  LEU*     3.5    23.6    -      -       +      +
    397B  THR*     6.4     0.4    -      -       +      -
    398B  TYR*     3.5    46.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 337 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233B  HIS*     4.3     8.3    +      -       -      -
    311B  VAL*     4.1    21.7    -      -       -      +
    315B  LEU*     4.8     1.8    -      -       -      -
    333B  ALA      2.9    15.9    +      -       -      -
    334B  MET      4.1     0.9    -      -       -      -
    336B  LEU*     1.4    74.4    -      -       -      +
    338B  GLU*     1.3    58.8    +      -       -      +
    340B  SER*     2.6    32.5    +      -       -      -
    341B  LEU*     3.5     4.3    +      -       -      +
    355B  ILE*     4.2     8.3    -      -       -      -
    359B  ALA*     4.1     6.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 338 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219B  VAL*     4.4     4.2    -      -       -      +
    229B  ASN*     3.2    20.3    -      -       -      +
    232B  LEU*     4.4    17.8    -      -       +      +
    233B  HIS*     4.3    13.4    +      -       +      -
    334B  MET*     2.9    17.8    +      -       -      +
    335B  PHE      3.6     6.1    -      -       -      +
    336B  LEU      3.0     0.2    -      -       -      -
    337B  GLY*     1.3    77.8    -      -       -      +
    339B  LEU*     1.3    61.5    +      -       -      +
    341B  LEU*     3.1    18.7    +      -       +      +
    409B  ILE*     3.2    33.8    -      -       +      +
    412B  LYS*     2.7    34.9    +      -       -      +
    413B  TYR*     2.6    28.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 339 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335B  PHE*     2.8    56.2    +      -       +      +
    336B  LEU*     3.2    13.6    +      -       +      +
    338B  GLU*     1.3    70.5    -      -       -      +
    340B  SER*     1.3    66.3    +      -       -      +
    342B  ILE*     2.8    27.7    +      -       +      +
    343B  ASP*     4.1     5.7    +      -       -      +
    347B  TYR*     5.4     0.2    -      -       -      -
    394B  LEU*     5.6     0.2    -      -       +      -
    397B  THR*     4.0    26.0    -      -       +      +
    398B  TYR*     5.4     1.1    -      -       -      -
    401B  ALA*     4.3    20.4    -      -       +      -
    404B  HIS*     6.2     6.1    -      -       +      -
    406B  GLN      5.6     5.8    -      -       -      +
    407B  GLN*     6.5     0.7    -      -       -      -
    409B  ILE*     3.7    29.6    -      -       +      -
    410B  ARG*     4.9     4.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 340 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211B  ARG*     5.7     0.3    +      -       -      -
    311B  VAL*     5.1     2.4    -      -       -      +
    336B  LEU      2.9    10.6    +      -       -      -
    337B  GLY      2.6    16.5    +      -       -      -
    339B  LEU*     1.3    76.3    -      -       -      +
    341B  LEU*     1.3    63.2    +      -       -      +
    342B  ILE      3.4     0.3    +      -       -      -
    343B  ASP      3.9     3.6    +      -       -      +
    347B  TYR*     3.1    54.1    -      -       -      +
    355B  ILE*     3.4    36.4    -      -       -      +
    394B  LEU*     4.4     3.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 341 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211B  ARG*     3.1    24.1    +      -       -      +
    215B  VAL*     3.9    16.5    -      -       +      +
    232B  LEU*     3.2    34.8    -      -       +      -
    233B  HIS*     3.7    41.7    -      -       +      +
    236B  VAL*     3.9    31.6    -      -       +      +
    311B  VAL*     6.0     2.0    -      -       +      -
    337B  GLY      4.3     1.3    -      -       -      +
    338B  GLU*     3.1    17.3    +      -       +      +
    339B  LEU      2.8     3.2    +      -       -      -
    340B  SER*     1.3    81.7    +      -       -      +
    342B  ILE*     1.3    61.2    +      -       +      +
    343B  ASP      4.8     0.2    -      -       -      -
    409B  ILE*     5.2     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 342 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  ASN      4.8     0.2    -      -       -      +
    211B  ARG*     3.3     7.2    +      -       -      +
    212B  ALA*     3.2    32.0    -      -       +      +
    215B  VAL*     4.1    10.1    -      -       +      +
    216B  ASP*     3.6    47.8    -      -       +      +
    339B  LEU*     2.8    22.5    +      -       +      +
    341B  LEU*     1.3    71.9    -      -       -      +
    343B  ASP*     1.3    58.2    +      -       -      +
    344B  ALA      4.0     0.2    +      -       -      -
    404B  HIS*     3.7    34.3    -      -       +      +
    406B  GLN*     4.0     4.9    -      -       +      -
    409B  ILE*     3.4    32.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 343 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  ASN*     5.7     1.3    -      -       -      -
    211B  ARG*     4.1     0.9    -      -       -      -
    212B  ALA*     4.7     5.3    -      -       -      +
    339B  LEU      4.1     2.9    +      -       -      +
    340B  SER      3.9     4.1    +      -       -      -
    341B  LEU      3.4     1.6    -      -       -      -
    342B  ILE*     1.3    83.1    -      -       -      +
    344B  ALA*     1.3    62.1    +      -       -      +
    345B  ASP      2.9    14.2    +      -       -      +
    346B  PRO*     4.9     1.1    -      -       +      -
    347B  TYR*     3.4    34.6    +      -       +      +
    397B  THR*     4.7    15.8    +      -       -      +
    404B  HIS*     3.1    38.9    +      -       -      -
----------------------------------------------------------
 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