Contacts of the helix formed by residues 226 - 243 (chain D) in PDB entry 1GZ0


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 226 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108D  ASN*     3.7    24.2    +      -       -      +
    198D  GLU*     3.6    11.0    +      -       -      +
    225D  LEU*     1.3    75.1    -      -       -      +
    227D  VAL*     1.3    69.2    +      -       -      +
    228D  SER*     2.8    10.6    +      -       -      +
    229D  VAL*     2.8    35.7    +      -       +      +
    230D  ALA*     2.9    20.7    +      -       -      +
    111E  ALA*     6.4     1.6    -      -       +      -
    114E  ARG*     3.5    22.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 227 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103D  VAL*     3.9    23.1    -      -       +      -
    108D  ASN*     3.8    30.3    -      -       +      +
    112D  CYS*     4.7     3.4    -      -       -      -
    195D  MSE      4.6     6.0    -      -       +      +
    196D  GLY      3.6    23.3    -      -       -      +
    197D  ALA*     5.0     1.1    -      -       -      -
    198D  GLU*     3.6    31.7    +      -       +      +
    225D  LEU      3.7     2.2    +      -       -      -
    226D  ASN*     1.3    71.7    -      -       -      +
    228D  SER*     1.3    54.4    +      -       -      +
    230D  ALA*     3.5     6.2    +      -       -      +
    231D  THR*     2.7    44.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 228 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108D  ASN*     3.7    18.7    +      -       -      -
    111D  ALA*     2.9    36.4    -      -       -      +
    112D  CYS*     4.1    11.4    -      -       -      +
    115D  SER*     4.5     2.3    +      -       -      -
    226D  ASN*     2.8    17.4    +      -       -      +
    227D  VAL*     1.3    71.9    -      -       -      +
    229D  VAL*     1.3    60.5    +      -       -      -
    231D  THR*     3.3     1.6    +      -       -      -
    232D  GLY*     2.8    27.0    +      -       -      -
    226E  ASN*     5.6     0.7    -      -       -      -
    229E  VAL*     4.0    16.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 229 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225D  LEU*     4.6     4.0    -      -       +      -
    226D  ASN*     2.8    36.5    +      -       +      +
    228D  SER*     1.3    72.0    -      -       -      +
    230D  ALA*     1.3    57.7    +      -       -      +
    232D  GLY*     3.2     2.3    +      -       -      -
    233D  ILE*     2.8    51.4    +      -       +      +
    111E  ALA*     5.6     1.3    -      -       +      +
    115E  SER*     3.4    24.0    -      -       -      +
    228E  SER*     3.4    33.2    -      -       -      +
    229E  VAL*     4.3    13.5    -      -       +      +
    232E  GLY*     3.9    13.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 230 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174D  THR*     5.9     0.9    -      -       +      -
    195D  MSE      3.4    17.5    -      -       +      +
    216D  ILE*     3.8    23.3    -      -       +      -
    225D  LEU*     4.2    13.6    -      -       +      +
    226D  ASN      2.9    16.2    +      -       -      +
    227D  VAL*     3.7     6.7    -      -       -      +
    229D  VAL*     1.3    79.0    -      -       -      +
    231D  THR*     1.3    61.2    +      -       -      +
    233D  ILE*     3.4     5.8    +      -       -      +
    234D  CYS*     3.0    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 231 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98D  LEU*     4.0    24.9    -      -       +      -
    100D  LEU*     4.2     0.7    -      -       +      +
    112D  CYS*     3.6    27.6    -      -       +      -
    115D  SER*     4.9     1.3    -      -       -      -
    193D  LEU*     4.6     0.2    -      -       -      +
    195D  MSE      3.4    27.0    -      -       +      +
    227D  VAL*     2.7    28.6    +      -       -      +
    228D  SER      3.6     4.3    -      -       -      -
    230D  ALA*     1.3    72.3    -      -       -      +
    232D  GLY*     1.3    58.1    +      -       -      +
    234D  CYS*     3.4     1.6    +      -       -      +
    235D  LEU*     2.9    53.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 232 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115D  SER*     4.2    13.4    +      -       -      -
    228D  SER      2.8    15.1    +      -       -      -
    229D  VAL      3.6     3.4    -      -       -      -
    231D  THR*     1.3    78.6    -      -       -      +
    233D  ILE*     1.3    61.4    +      -       -      +
    235D  LEU*     3.3     1.5    +      -       -      -
    236D  PHE*     2.9    30.4    +      -       -      +
    229E  VAL*     3.9    16.6    -      -       -      -
    233E  ILE*     3.7     9.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182D  LEU*     3.8    19.9    -      -       +      +
    183D  TYR*     4.1     0.7    -      -       -      +
    216D  ILE*     4.5     7.2    -      -       +      -
    225D  LEU*     3.7    25.4    -      -       +      -
    229D  VAL*     2.8    35.6    +      -       +      +
    230D  ALA*     3.7     5.4    -      -       -      +
    232D  GLY*     1.3    73.0    -      -       -      +
    234D  CYS*     1.3    63.4    +      -       -      +
    236D  PHE*     3.4     2.6    +      -       -      +
    237D  GLU*     3.3    18.7    +      -       -      +
    232E  GLY      3.9    21.5    -      -       -      +
    233E  ILE*     3.9     8.0    -      -       -      +
    236E  PHE*     3.5    46.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174D  THR*     3.7    20.9    -      -       -      -
    182D  LEU*     3.8    23.8    -      -       +      -
    187D  MSE      3.2    25.1    -      -       -      +
    193D  LEU*     3.8    22.2    -      -       +      -
    195D  MSE      4.0     5.2    -      -       -      -
    214D  ILE*     4.5     3.4    -      -       -      -
    216D  ILE*     3.7    25.6    -      -       -      -
    230D  ALA      3.0    20.5    +      -       -      +
    231D  THR      3.8     1.1    -      -       -      +
    233D  ILE*     1.3    74.9    -      -       -      +
    235D  LEU*     1.3    65.7    +      -       -      +
    237D  GLU*     3.3     5.5    +      -       -      +
    238D  ALA*     3.3     1.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 235 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96D  PHE*     3.8    24.7    -      -       +      -
     98D  LEU*     4.1    18.2    -      -       +      -
    115D  SER*     4.1    20.9    -      -       -      +
    116D  ALA*     4.2     2.0    -      -       -      +
    119D  ALA*     3.6    19.3    -      -       +      -
    121D  VAL*     3.8    10.8    -      -       +      -
    193D  LEU*     3.4    23.5    -      -       +      +
    231D  THR*     2.9    41.3    +      -       +      +
    232D  GLY      3.7     4.5    -      -       -      +
    234D  CYS*     1.3    76.0    -      -       -      +
    236D  PHE*     1.3    62.1    +      -       +      +
    238D  ALA*     3.1     9.4    -      -       -      +
    239D  VAL*     2.9    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 236 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115D  SER*     4.1    20.2    -      -       -      -
    118D  ALA*     3.7    30.7    -      -       +      -
    119D  ALA*     3.9     6.5    -      -       +      -
    232D  GLY      2.9    22.9    +      -       -      +
    233D  ILE      4.0     2.7    -      -       -      +
    234D  CYS      3.2     0.2    -      -       -      -
    235D  LEU*     1.3    76.3    -      -       +      +
    237D  GLU*     1.3    59.6    +      -       -      +
    238D  ALA      3.1     1.1    -      -       -      -
    239D  VAL*     3.5    18.6    -      -       +      +
    240D  ARG*     2.9    20.6    +      -       -      +
    183E  TYR*     2.8    38.5    +      +       -      +
    216E  ILE*     3.8    17.3    -      -       +      -
    217E  PRO*     3.5    22.2    -      -       +      -
    225E  LEU*     4.0    12.1    -      -       +      -
    233E  ILE*     3.4    31.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182D  LEU*     3.6    37.2    -      -       +      +
    183D  TYR*     3.4    29.8    -      -       +      +
    187D  MSE      3.7     5.8    -      -       +      -
    233D  ILE      3.3     5.3    +      -       -      +
    234D  CYS      3.3    11.2    +      -       -      +
    236D  PHE*     1.3    76.9    -      -       -      +
    238D  ALA*     1.3    57.3    +      -       -      +
    240D  ARG*     2.8    32.2    +      -       -      +
    241D  GLN*     2.8    57.2    +      -       -      +
    183E  TYR*     6.0     0.2    -      -       -      -
    237E  GLU*     5.0     0.9    -      -       -      +
    240E  ARG*     3.6     6.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96D  PHE*     3.7    25.8    -      -       +      -
    187D  MSE      3.7    33.1    -      -       +      +
    191D  LEU*     4.1     2.5    -      -       +      -
    193D  LEU*     6.0     0.4    -      -       +      -
    234D  CYS      3.3     8.3    +      -       -      +
    235D  LEU*     3.1    15.2    +      -       +      +
    237D  GLU*     1.3    80.9    -      -       -      +
    239D  VAL*     1.3    53.8    +      -       -      +
    241D  GLN*     3.3     1.0    +      -       -      -
    242D  ARG*     2.8    39.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 239 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96D  PHE*     4.7     2.2    -      -       +      -
    118D  ALA      5.1     0.4    -      -       -      +
    119D  ALA*     3.4    41.7    -      -       +      +
    235D  LEU      2.9    19.0    +      -       -      +
    236D  PHE*     3.7    21.8    -      -       +      +
    237D  GLU      3.3     0.4    -      -       -      -
    238D  ALA*     1.3    73.8    -      -       -      +
    240D  ARG*     1.3    65.2    +      -       -      +
    242D  ARG*     3.3     5.9    +      -       -      +
    243D  SER*     3.0    29.7    +      -       -      -
    183E  TYR*     4.2    13.0    -      -       +      -
    217E  PRO*     4.4    16.4    -      -       +      +
    219E  ALA*     6.4     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 240 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236D  PHE      2.9    18.5    +      -       -      +
    237D  GLU*     2.8    39.1    +      -       -      +
    239D  VAL*     1.3    79.5    -      -       -      +
    241D  GLN*     1.3    80.4    +      -       -      +
    243D  SER*     3.3    15.2    +      -       -      -
    183E  TYR*     3.7    37.4    +      -       +      -
    237E  GLU*     3.7    17.7    +      -       -      -
    240E  ARG*     3.0    44.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 241 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182D  LEU      4.2     4.0    +      -       -      -
    183D  TYR      5.2     2.4    +      -       -      -
    185D  SER      3.3    22.7    +      -       -      +
    186D  LYS*     3.5     2.8    -      -       -      +
    187D  MSE      2.7    39.7    +      -       +      +
    188D  THR*     3.6    25.0    +      -       +      +
    237D  GLU*     2.8    51.3    +      -       -      +
    238D  ALA      3.8     3.4    -      -       -      +
    240D  ARG*     1.3    85.5    -      -       -      +
    242D  ARG*     1.3    59.6    +      -       -      +
    243D  SER*     3.5     4.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 242 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94D  GLN*     3.2    30.4    +      -       -      +
     95D  PRO      3.9     0.6    +      -       -      -
     96D  PHE*     3.4    38.0    -      -       -      +
    122D  HIS*     5.2     0.6    -      -       -      -
    187D  MSE      2.8    39.4    +      -       -      +
    188D  THR*     3.7    13.3    -      -       -      -
    189D  GLY      2.9    24.2    +      -       -      +
    191D  LEU*     3.8     9.7    -      -       -      +
    238D  ALA*     2.8    36.3    +      -       -      +
    239D  VAL*     4.0     4.0    -      -       -      +
    241D  GLN*     1.3    71.5    -      -       -      +
    243D  SER*     1.3    63.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 243 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239D  VAL*     3.0    20.2    +      -       -      -
    240D  ARG*     3.3    19.1    +      -       -      +
    241D  GLN      4.2     4.2    -      -       -      +
    242D  ARG*     1.3    81.9    -      -       -      +
    183E  TYR*     4.9     6.8    -      -       -      +
----------------------------------------------------------
 Back to top of page


A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il