Contacts of the helix formed by residues 214 - 228 (chain B) in PDB entry 1Z10


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 THR 214 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  THR      4.3     3.6    -      -       -      -
     52B  GLU*     5.3     1.6    -      -       -      +
    210B  GLN*     3.0    23.6    -      -       +      +
    211B  PHE*     2.7    21.7    +      -       +      +
    213B  SER*     1.3    81.9    -      -       -      +
    215B  SER*     1.3    60.2    +      -       -      +
    216B  THR*     3.5     7.4    +      -       -      -
    217B  GLY      3.3     8.5    +      -       -      -
    218B  GLN*     2.9    28.9    +      -       -      +
    477B  HIS*     4.0    28.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  THR*     4.9     0.7    +      -       -      -
    233A  PRO*     3.0    26.7    -      -       -      +
     51B  THR*     3.3    36.7    +      -       -      -
     52B  GLU*     3.6    28.0    +      -       -      +
    214B  THR*     1.3    73.5    -      -       -      +
    216B  THR*     1.3    65.7    +      -       -      +
    218B  GLN      3.1     0.5    +      -       -      -
    219B  LEU*     2.7    30.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  SER*     4.7     6.1    +      -       -      -
    216A  THR*     4.1    15.8    +      -       -      -
    211B  PHE*     3.7    23.8    -      -       +      -
    214B  THR*     3.4     5.8    +      -       -      -
    215B  SER*     1.3    80.5    +      -       -      +
    217B  GLY*     1.3    58.3    +      -       -      +
    219B  LEU*     3.2     9.2    +      -       +      +
    220B  TYR*     2.9    28.2    +      -       -      +
    227B  MET*     4.2    17.0    -      -       +      +
    233B  PRO*     4.2    21.0    -      -       +      +
    234B  GLN*     4.6     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104B  GLN*     5.6     0.3    +      -       -      -
    106B  THR*     4.5     1.3    +      -       -      -
    211B  PHE*     3.2    41.3    +      -       -      -
    212B  THR*     4.2     5.3    -      -       -      -
    214B  THR*     3.3     8.9    +      -       -      -
    216B  THR*     1.3    76.8    -      -       -      +
    218B  GLN*     1.3    64.5    +      -       -      +
    220B  TYR*     3.4     5.4    +      -       -      +
    221B  GLU*     3.2    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  THR*     3.5    24.4    -      -       +      +
     54B  MET*     3.2    41.0    -      -       +      +
     73B  LEU*     6.1     0.6    -      -       -      +
    104B  GLN*     4.6     1.4    +      -       -      -
    212B  THR      3.1    18.6    -      -       -      +
    213B  SER      5.0     0.2    -      -       -      -
    214B  THR      2.9    19.8    +      -       -      +
    215B  SER      3.9     0.4    -      -       -      +
    217B  GLY*     1.3    74.6    -      -       -      +
    219B  LEU*     1.3    64.4    +      -       -      +
    221B  GLU*     3.2    36.8    +      -       -      +
    222B  MET*     3.6    10.7    +      -       -      +
    368B  MET*     4.1     9.5    -      -       -      +
    392B  TYR*     4.9     5.7    +      -       -      -
    479B  GLY*     4.1    20.6    -      -       -      -
    480B  PHE*     3.6    10.3    +      -       -      +
    900B  GOL      4.9     2.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  LEU*     6.2     3.8    -      -       +      -
     46B  TYR*     3.7    31.6    -      -       +      +
     51B  THR*     3.7    12.0    -      -       +      +
    215B  SER      2.7    20.6    +      -       -      +
    216B  THR*     3.2    11.2    +      -       +      +
    218B  GLN*     1.3    73.2    -      -       -      +
    220B  TYR*     1.3    57.6    +      -       -      +
    222B  MET*     2.9    10.5    +      -       -      +
    223B  PHE*     2.8    49.7    +      -       +      -
    227B  MET*     4.0    23.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  ALA*     3.5    25.8    +      -       +      -
    106B  THR*     3.5    25.8    -      -       -      +
    109B  TRP*     3.9     6.2    -      -       -      +
    211B  PHE*     4.6     4.9    -      +       +      -
    216B  THR      2.9    13.6    +      -       -      +
    217B  GLY*     3.4    13.7    -      -       -      +
    219B  LEU*     1.3    76.7    -      -       -      +
    221B  GLU*     1.3    62.3    +      -       -      +
    224B  SER*     2.9    56.5    +      -       -      -
    227B  MET*     3.6    25.0    -      -       +      -
    228B  LYS*     3.2    30.4    -      -       -      +
    234B  GLN*     3.7    13.2    -      -       +      -
    238B  PHE*     3.1    34.9    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  LEU*     5.3     3.1    -      -       +      -
     76B  ARG*     2.9    47.7    +      -       -      +
    103B  GLU*     4.1     1.6    -      -       -      +
    104B  GLN*     3.2    29.6    +      -       -      +
    105B  ALA*     3.0    36.2    +      -       -      +
    106B  THR*     3.3    15.1    +      -       -      -
    217B  GLY      3.2    13.0    +      -       -      +
    218B  GLN*     3.6    32.5    -      -       -      +
    219B  LEU      3.2     1.0    -      -       -      -
    220B  TYR*     1.3    74.6    -      -       -      +
    222B  MET*     1.3    62.1    +      -       +      +
    224B  SER*     4.9     1.9    +      -       -      -
    392B  TYR*     4.6     9.0    +      -       -      +
    900B  GOL      5.3     1.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  ILE      3.9     0.9    -      -       -      +
     46B  TYR*     3.4    53.6    -      -       +      +
     49B  LEU*     4.3    12.3    -      -       +      -
     51B  THR*     4.9     9.0    -      -       -      -
     54B  MET*     5.4     5.2    -      -       +      +
     72B  HIS      4.3     0.7    -      -       -      +
     73B  LEU*     3.6    29.8    -      -       +      +
     74B  GLY*     3.1    22.2    -      -       -      +
     75B  PRO*     3.4    27.0    -      -       -      +
     76B  ARG*     5.5     0.9    -      -       -      -
    218B  GLN      4.0    12.8    -      -       -      +
    219B  LEU*     2.9     7.0    +      -       -      +
    221B  GLU*     1.3    83.7    -      -       +      +
    223B  PHE*     1.3    70.3    +      -       +      +
    224B  SER*     3.6     2.1    +      -       -      -
    225B  SER*     5.2     1.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  PHE*     3.6    35.7    -      +       -      -
     43B  ILE*     3.8    37.9    -      -       +      -
     46B  TYR*     3.9    25.6    -      +       +      -
     74B  GLY*     4.1     1.6    -      -       -      -
    219B  LEU*     2.8    47.9    +      -       +      +
    220B  TYR      3.8     0.7    -      -       -      -
    222B  MET*     1.3    87.1    -      -       +      +
    224B  SER*     1.3    60.7    +      -       -      +
    225B  SER*     3.1     6.3    -      -       -      +
    226B  VAL*     3.0    10.5    +      -       +      +
    227B  MET*     2.9    38.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  GLU*     4.5     5.7    +      -       -      -
    105B  ALA*     3.7    14.6    -      -       -      +
    220B  TYR*     2.9    52.9    +      -       -      -
    221B  GLU      4.9     2.3    +      -       -      -
    222B  MET      3.6     1.5    -      -       -      -
    223B  PHE*     1.3    77.2    -      -       -      +
    225B  SER*     1.3    65.3    +      -       -      +
    228B  LYS*     2.9    34.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  PHE*     3.4    31.7    -      -       -      -
     75B  PRO*     5.2     4.8    -      -       -      +
    222B  MET      5.2     1.2    +      -       -      -
    223B  PHE*     4.4     1.9    +      -       -      -
    224B  SER*     1.3    79.3    +      -       -      +
    226B  VAL*     1.3    60.9    +      -       -      +
    228B  LYS*     4.3     7.5    -      -       -      +
    229B  HIS*     3.5    21.0    +      -       -      -
     42C  PHE*     3.8     7.1    -      -       -      -
     75C  PRO*     5.8     0.2    -      -       -      +
    225C  SER*     4.1    29.5    +      -       -      -
    226C  VAL*     4.5     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  PHE*     4.1    12.6    -      -       +      -
    223B  PHE*     3.0     8.7    +      -       +      +
    225B  SER*     1.3    86.2    +      -       -      +
    227B  MET*     1.3    67.7    +      -       +      +
    228B  LYS      3.2     2.0    -      -       -      -
    229B  HIS*     3.0    21.7    +      -       -      +
    230B  LEU*     3.7    24.5    -      -       +      +
     42C  PHE*     4.1    28.3    -      -       +      -
    226C  VAL*     3.8    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  THR*     4.2    17.0    -      -       +      +
    219B  LEU*     4.0    24.0    -      -       +      -
    220B  TYR*     3.6    45.5    -      -       +      +
    223B  PHE*     2.9    26.7    +      -       +      +
    226B  VAL*     1.3    76.8    -      -       +      +
    228B  LYS*     1.3    63.7    +      -       -      +
    229B  HIS      3.0     0.9    +      -       -      -
    230B  LEU*     3.1    22.9    +      -       +      +
    234B  GLN*     3.0    53.2    -      -       +      +
    235B  GLN*     3.8     1.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  TRP*     4.5    15.5    +      -       +      +
    220B  TYR*     3.2    27.9    +      -       -      +
    224B  SER*     2.9    25.9    +      -       -      +
    225B  SER*     4.3     6.8    -      -       -      +
    227B  MET*     1.3    77.8    -      -       -      +
    229B  HIS*     1.3    92.4    +      -       +      +
    235B  GLN*     3.0    16.9    +      -       -      +
    238B  PHE*     4.1    12.2    -      -       +      -
----------------------------------------------------------
 Back to top of page


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


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

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

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