Contacts of the helix formed by residues 230 - 244 (chain B) in PDB entry 1UES


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 LYS 230 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169A  ASN*     3.7    28.3    -      -       -      +
    225B  GLU      4.2     2.7    -      -       -      +
    226B  PHE*     2.9    41.2    +      -       +      +
    229B  GLY*     1.3    87.7    -      -       -      +
    231B  HIS*     1.3    66.6    +      -       -      +
    232B  LEU      3.5     0.9    -      -       -      -
    233B  LYS*     3.7     4.2    -      -       +      +
    234B  THR*     3.0    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  GLU*     3.6    10.8    -      -       -      -
    164A  TYR*     2.7    33.4    +      +       -      -
    169A  ASN*     3.5    25.7    -      -       +      +
    226B  PHE      2.8    30.2    +      -       -      -
    227B  HIS*     3.3    19.7    -      -       +      +
    230B  LYS*     1.3    73.7    -      -       -      +
    232B  LEU*     1.3    65.3    +      -       -      +
    234B  THR*     3.2     8.1    +      -       -      -
    235B  TYR*     3.1    38.6    +      -       +      -
    274B  HIS*     5.3     0.2    -      -       -      +
    361B  HIS*     3.3    37.5    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205B  LEU*     3.4    20.9    -      -       +      -
    206B  ILE*     4.0     6.5    -      -       +      +
    227B  HIS      3.0    13.9    +      -       -      +
    228B  HIS*     3.3    28.5    +      -       +      +
    230B  LYS      3.5     0.2    -      -       -      -
    231B  HIS*     1.3    75.0    -      -       -      +
    233B  LYS*     1.3    64.5    +      -       -      +
    235B  TYR*     3.0    11.1    +      -       +      -
    236B  VAL*     2.9    30.9    +      -       +      +
    271B  THR*     4.0    24.2    -      -       +      +
    274B  HIS*     3.7    33.4    -      -       +      -
    275B  ASN*     3.8    17.5    -      -       -      +
    278B  PHE*     4.2     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205B  LEU*     3.7    27.3    -      -       +      +
    228B  HIS      3.5     4.2    +      -       -      -
    229B  GLY      3.3    25.4    -      -       -      +
    230B  LYS*     3.5     4.9    +      -       -      +
    231B  HIS      3.3     0.4    -      -       -      -
    232B  LEU*     1.3    77.2    -      -       -      +
    234B  THR*     1.3    58.7    +      -       -      +
    236B  VAL*     3.2     3.6    +      -       -      +
    237B  ASP*     2.7    72.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169A  ASN*     5.4     2.9    +      -       -      -
    230B  LYS*     3.0    19.4    +      -       -      +
    231B  HIS*     3.5     7.2    -      -       -      -
    233B  LYS*     1.3    74.3    -      -       -      +
    235B  TYR*     1.3    70.5    +      -       +      +
    237B  ASP*     3.9     6.1    -      -       -      +
    238B  ASN*     2.9    50.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 235 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  PHE*     4.1    15.8    -      +       -      -
    231B  HIS*     3.1    35.0    +      -       +      -
    232B  LEU*     3.0    13.1    +      -       +      +
    234B  THR*     1.3    80.4    -      -       +      +
    236B  VAL*     1.3    57.3    +      -       -      +
    238B  ASN*     3.7     3.3    -      -       -      +
    239B  LEU*     2.9    30.3    +      -       -      +
    266B  ASN      4.9     0.2    -      -       -      -
    267B  ASN*     3.4    25.1    -      -       -      +
    270B  GLN*     3.0    43.2    +      -       +      -
    271B  THR*     3.7    15.5    -      -       -      +
    274B  HIS*     3.5    29.8    -      +       -      -
    359B  TRP*     3.7    21.8    -      -       -      -
    361B  HIS*     4.4     5.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 236 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203B  HIS*     3.5    27.3    -      -       +      +
    204B  GLU*     3.6    29.2    -      -       -      +
    205B  LEU*     4.1     7.2    -      -       +      +
    206B  ILE      5.7     0.2    -      -       -      +
    232B  LEU*     2.9    27.7    +      -       +      +
    233B  LYS*     3.6     9.4    -      -       -      +
    235B  TYR*     1.3    76.0    -      -       -      +
    237B  ASP*     1.3    68.8    +      -       -      +
    239B  LEU*     3.2     6.9    +      -       -      +
    240B  ASN*     3.0    27.0    +      -       -      +
    271B  THR*     4.0    23.8    -      -       +      -
    275B  ASN*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 237 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233B  LYS*     2.7    59.3    +      -       -      +
    234B  THR*     4.1     5.5    -      -       -      +
    236B  VAL*     1.3    80.5    -      -       -      +
    238B  ASN*     1.3    63.1    +      -       -      +
    240B  ASN*     3.4     2.4    +      -       -      +
    241B  LYS*     2.8    56.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  THR*     2.9    42.3    +      -       -      +
    235B  TYR*     3.7     1.0    -      -       -      +
    237B  ASP*     1.3    76.3    -      -       -      +
    239B  LEU*     1.3    66.6    +      -       -      +
    241B  LYS*     3.3     6.9    +      -       -      +
    242B  LEU*     3.0    31.2    +      -       +      +
    267B  ASN*     3.3    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203B  HIS*     3.5    36.3    -      -       +      +
    235B  TYR      2.9    18.3    +      -       -      +
    236B  VAL*     3.2     6.5    +      -       -      +
    238B  ASN*     1.3    77.4    -      -       -      +
    240B  ASN*     1.3    62.0    +      -       -      +
    242B  LEU*     3.0     4.5    +      -       -      -
    243B  ILE*     3.0    33.8    +      -       +      +
    253B  LEU*     4.2    10.1    -      -       +      -
    256B  ILE*     4.6     5.6    -      -       +      -
    264B  ILE*     4.2    20.0    -      -       +      +
    267B  ASN*     4.0     8.7    -      -       +      +
    268B  ALA*     3.9    35.9    -      -       +      +
    271B  THR*     4.0    12.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  MET      4.9     0.2    -      -       -      -
    202B  THR*     2.9    28.3    +      -       +      +
    203B  HIS*     2.7    51.6    +      -       -      -
    236B  VAL*     3.0    26.1    +      -       -      +
    237B  ASP*     3.7     6.1    +      -       -      +
    239B  LEU*     1.3    76.8    -      -       -      +
    241B  LYS*     1.3    74.0    -      -       +      +
    243B  ILE*     2.9    28.9    -      -       -      +
    244B  ILE*     4.4     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237B  ASP*     2.8    50.7    +      -       -      +
    238B  ASN*     3.7     8.7    -      -       -      +
    239B  LEU      3.2     0.2    -      -       -      -
    240B  ASN*     1.3    92.3    -      -       +      +
    242B  LEU*     1.3    64.6    +      -       +      +
    244B  ILE*     4.3    15.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  ASN*     3.0    21.0    +      -       +      +
    239B  LEU*     3.0     4.7    +      -       -      +
    241B  LYS*     1.3    81.4    -      -       +      +
    243B  ILE*     1.3    66.8    +      -       -      +
    244B  ILE      3.2    10.1    +      -       -      +
    246B  THR*     3.7     8.3    +      -       -      +
    263B  GLY*     3.9    21.1    -      -       -      +
    264B  ILE*     4.1    26.3    -      -       +      +
    267B  ASN*     3.6    24.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  MET*     3.0    36.8    -      -       +      +
    202B  THR*     3.8     8.1    -      -       -      +
    203B  HIS*     4.8     0.2    -      -       -      +
    239B  LEU*     3.0    29.6    +      -       +      +
    240B  ASN      2.9    20.2    -      -       -      +
    242B  LEU*     1.3    71.7    -      -       -      +
    244B  ILE*     1.3    93.3    +      -       +      +
    246B  THR*     2.9    20.5    +      -       -      -
    248B  PHE      4.4     4.9    -      -       -      +
    249B  GLU*     3.0    43.6    -      -       +      +
    256B  ILE*     4.5     5.6    -      -       +      -
    264B  ILE*     5.3     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240B  ASN      4.4     6.1    -      -       -      +
    241B  LYS*     4.3    11.5    -      -       -      +
    242B  LEU*     3.2     8.7    -      -       -      +
    243B  ILE*     1.3    96.1    -      -       +      +
    245B  GLY*     1.3    64.1    +      -       -      +
    246B  THR*     3.8     0.9    +      -       -      +
    249B  GLU*     3.2    13.0    -      -       -      +
----------------------------------------------------------
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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