Contacts of the helix formed by residues 219 - 234 (chain D) in PDB entry 1Z6T


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 219 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196D  LEU*     3.6    14.0    -      -       -      +
    217D  PRO      3.5     0.2    -      -       -      -
    218D  LEU*     1.3    82.3    +      -       -      +
    220D  ILE*     1.3    66.3    +      -       -      +
    221D  GLU*     3.3    11.6    +      -       -      +
    222D  GLU*     2.9    52.6    +      -       -      +
    223D  ALA*     3.0    24.4    +      -       -      +
    520D  ALA*     5.5     3.1    -      -       +      -
    557D  ARG*     4.5     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 220 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192D  LYS*     3.4    54.1    -      -       +      +
    195D  LEU*     4.7     4.9    -      -       +      -
    196D  LEU*     4.4    15.3    -      -       +      +
    199D  LEU*     4.5     7.0    -      -       +      -
    219D  ASN*     1.3    75.5    -      -       -      +
    221D  GLU*     1.3    68.2    +      -       -      +
    223D  ALA*     3.3     5.8    +      -       -      +
    224D  LYS*     2.9    29.6    +      -       +      +
    249D  TRP*     4.3    11.7    -      -       +      -
    253D  ALA*     4.2    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 221 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219D  ASN*     3.3     8.8    +      -       -      +
    220D  ILE*     1.3    88.4    -      -       -      +
    222D  GLU*     1.3    57.0    +      -       +      +
    224D  LYS*     3.4    19.5    +      -       -      +
    225D  ASP*     3.1    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 222 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215D  ARG*     3.3    20.9    +      -       -      -
    217D  PRO*     3.6    11.4    -      -       +      +
    218D  LEU*     2.9    25.0    +      -       -      +
    219D  ASN*     2.9    31.2    +      -       -      +
    221D  GLU*     1.3    75.7    -      -       -      +
    223D  ALA*     1.3    58.7    +      -       -      +
    225D  ASP*     3.6     7.2    +      -       -      +
    226D  ARG*     2.9    31.1    +      -       -      +
    557D  ARG*     2.3    35.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 223 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196D  LEU*     4.5     3.8    -      -       +      -
    199D  LEU*     3.9    32.2    -      -       +      +
    203D  CYS*     4.1     4.1    -      -       -      -
    217D  PRO*     3.4    26.7    -      -       +      -
    219D  ASN      3.0    18.4    +      -       -      +
    220D  ILE*     3.7     3.8    -      -       -      +
    222D  GLU*     1.3    74.6    -      -       -      +
    224D  LYS*     1.3    61.6    +      -       -      +
    226D  ARG*     3.8     1.7    -      -       -      +
    227D  LEU*     2.9    31.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 224 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  LEU*     5.1     1.5    -      -       -      +
    220D  ILE*     2.9    20.0    +      -       +      +
    221D  GLU*     3.7    21.7    +      -       -      +
    223D  ALA*     1.3    77.2    -      -       -      +
    225D  ASP*     1.3    56.9    +      -       -      +
    227D  LEU*     3.3     6.0    +      -       -      +
    228D  ARG*     2.9    24.8    +      -       +      +
    252D  LYS*     2.6    52.2    +      -       -      +
    253D  ALA*     3.4    27.6    -      -       +      +
    255D  ASP      3.8    19.1    +      -       -      -
    256D  SER*     3.6    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 225 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  GLN*     4.7     5.0    -      -       -      +
    221D  GLU      3.1    17.9    +      -       -      +
    222D  GLU*     3.6     7.9    -      -       -      +
    224D  LYS*     1.3    75.7    -      -       -      +
    226D  ARG*     1.3    64.7    +      -       -      +
    228D  ARG*     3.1    35.8    +      -       -      +
    229D  ILE*     3.2    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 226 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203D  CYS*     3.9    15.9    -      -       -      +
    207D  ASP*     5.7     1.6    -      -       -      -
    212D  PHE*     5.4     2.9    -      -       -      -
    213D  SER*     3.6    36.1    +      -       -      +
    215D  ARG*     2.6    41.2    +      -       -      +
    216D  LEU*     4.0     3.6    +      -       -      +
    217D  PRO*     3.6    29.1    -      -       +      +
    222D  GLU*     2.9    22.6    +      -       -      +
    223D  ALA*     3.4     4.7    +      -       -      +
    225D  ASP*     1.3    76.1    +      -       -      +
    227D  LEU*     1.3    57.9    +      -       -      +
    229D  ILE*     3.2    11.0    +      -       +      +
    230D  LEU*     2.9    52.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 227 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  LEU*     4.8     5.4    -      -       +      -
    202D  LEU*     3.9    16.2    -      -       +      -
    203D  CYS*     4.4     9.6    -      -       -      -
    206D  LEU*     3.5    31.6    -      -       +      -
    223D  ALA      2.9    18.6    +      -       -      +
    224D  LYS      3.5     4.7    -      -       -      +
    225D  ASP      3.3     0.2    -      -       -      -
    226D  ARG*     1.3    78.3    -      -       -      +
    228D  ARG*     1.3    63.3    +      -       -      +
    230D  LEU*     3.4     3.3    +      -       -      +
    231D  MET*     3.0    40.4    +      -       +      +
    240D  LEU*     4.3     9.6    -      -       +      -
    253D  ALA      4.3     5.6    -      -       -      +
    254D  PHE*     3.6    45.5    -      -       +      +
    256D  SER*     5.1     3.1    -      -       -      +
    258D  CYS*     5.4     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 228 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  GLN*     5.8     0.2    -      -       -      +
    224D  LYS      2.9    14.2    +      -       -      +
    225D  ASP*     3.1    33.4    +      -       -      +
    227D  LEU*     1.3    77.6    -      -       -      +
    229D  ILE*     1.3    93.0    +      -       -      +
    231D  MET*     4.1     2.7    -      -       -      +
    232D  LEU*     3.2    38.5    +      -       +      +
    256D  SER*     3.7    34.2    -      -       -      +
    257D  GLN*     4.2    14.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 229 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  GLN*     3.3    43.5    -      -       +      +
    212D  PHE*     3.9    32.8    -      -       +      -
    225D  ASP*     3.2    15.2    +      -       -      +
    226D  ARG*     3.2    12.4    +      -       +      +
    228D  ARG*     1.3   111.2    -      -       -      +
    230D  LEU*     1.3    62.8    +      -       +      +
    232D  LEU*     4.5     5.2    -      -       +      -
    233D  ARG*     2.8    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 230 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203D  CYS*     3.7    31.4    -      -       -      +
    206D  LEU*     4.0    26.0    -      -       +      +
    207D  ASP*     3.6    23.8    -      -       +      +
    212D  PHE*     3.7    32.5    -      -       +      -
    226D  ARG*     2.9    41.1    +      -       +      +
    227D  LEU*     4.1     2.9    -      -       -      +
    229D  ILE*     1.3    78.1    -      -       +      +
    231D  MET*     1.3    58.8    +      -       -      +
    233D  ARG*     5.1     0.2    -      -       -      -
    234D  LYS*     2.8    36.4    +      -       +      +
    235D  HIS*     3.0     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 231 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183D  HIS*     5.4     1.8    -      -       -      +
    206D  LEU*     3.8    26.5    -      -       -      -
    227D  LEU*     3.0    28.5    +      -       +      +
    228D  ARG*     4.1     3.4    -      -       -      +
    230D  LEU*     1.3    77.9    -      -       -      +
    232D  LEU*     1.3    58.4    +      -       -      +
    235D  HIS*     3.0    38.4    -      -       +      +
    236D  PRO*     3.2     5.5    -      -       -      +
    238D  SER*     3.1    31.9    -      -       -      +
    239D  LEU      5.2     0.7    -      -       -      +
    240D  LEU*     4.3    26.2    -      -       +      +
    256D  SER      5.3     1.3    -      -       -      +
    257D  GLN      6.0     0.4    -      -       -      +
    258D  CYS*     3.7    34.1    -      -       +      -
    259D  GLN      5.9     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 232 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228D  ARG*     3.2    34.4    +      -       +      +
    229D  ILE*     3.7     5.4    -      -       +      +
    231D  MET*     1.3    79.7    -      -       -      +
    233D  ARG*     1.3    78.1    +      -       +      +
    234D  LYS      3.6     0.2    -      -       -      -
    236D  PRO*     3.7    21.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  ASN*     3.4    36.6    +      -       -      +
     10B  LEU*     4.2    17.8    -      -       -      +
    212D  PHE*     3.5    31.1    -      -       +      -
    229D  ILE*     2.8    27.5    +      -       +      +
    232D  LEU*     1.3    92.8    -      -       +      +
    234D  LYS*     1.3    59.7    +      -       -      +
    236D  PRO*     4.4     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206D  LEU      3.5    13.9    +      -       -      +
    207D  ASP*     3.4    24.4    +      -       -      +
    208D  GLN*     3.8     4.2    -      -       -      +
    209D  ASP*     2.5    39.7    +      -       -      +
    211D  SER*     3.7    13.7    -      -       -      +
    212D  PHE*     3.4    26.2    -      -       +      -
    230D  LEU*     2.8    20.5    +      -       +      +
    233D  ARG*     1.3    76.4    -      -       -      +
    235D  HIS*     1.3    82.6    +      -       +      +
    236D  PRO*     3.3     9.7    -      -       -      +
----------------------------------------------------------
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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