Contacts of the helix formed by residues 292 - 304 (chain A) in PDB entry 1TAD


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 TYR 292 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267A  LYS*     3.4    39.0    +      -       +      +
    270A  PHE*     3.5    28.5    -      +       -      -
    271A  SER*     3.4    32.8    -      -       -      +
    274A  ILE*     3.7    19.1    -      -       +      +
    291A  THR*     1.3    71.5    -      -       -      +
    293A  GLU*     1.3    82.3    +      -       +      +
    296A  GLY*     2.8    30.7    +      -       -      -
    319A  MET*     3.7    25.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291A  THR*     3.4    21.0    +      -       -      +
    292A  TYR*     1.3   103.4    +      -       +      +
    294A  ASP*     1.3    61.1    +      -       -      +
    296A  GLY*     4.1     0.4    -      -       -      -
    297A  ASN*     3.2    23.7    +      -       -      +
    319A  MET*     5.8     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 294 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286A  TYR*     2.6    28.2    +      -       -      -
    288A  GLY*     4.2     1.4    -      -       -      -
    289A  PRO*     3.6    29.0    -      -       +      +
    291A  THR*     3.1    21.6    +      -       -      +
    293A  GLU*     1.3    77.7    -      -       -      +
    295A  ALA*     1.3    65.0    +      -       -      +
    297A  ASN*     3.3     5.7    +      -       -      +
    298A  TYR*     3.1    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 295 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270A  PHE*     3.7     8.3    -      -       +      -
    274A  ILE*     3.5    28.5    -      -       +      -
    279A  LEU*     3.7    18.8    -      -       +      +
    286A  TYR*     3.6    13.4    +      -       +      +
    289A  PRO      4.8     0.2    -      -       -      +
    291A  THR      2.7    23.2    +      -       -      +
    294A  ASP*     1.3    73.4    -      -       -      +
    296A  GLY*     1.3    55.6    +      -       -      +
    298A  TYR*     3.3     2.4    +      -       -      +
    299A  ILE*     3.0    34.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 296 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  LEU*     4.6     1.3    -      -       -      -
    264A  LEU*     4.3     6.8    -      -       -      +
    270A  PHE*     3.8     8.6    -      -       -      -
    292A  TYR      2.8    19.4    +      -       -      -
    293A  GLU      4.1     0.7    -      -       -      -
    295A  ALA*     1.3    78.2    -      -       -      +
    297A  ASN*     1.3    60.9    +      -       -      +
    299A  ILE*     3.5     5.7    +      -       -      +
    300A  LYS*     3.1    22.0    +      -       -      +
    319A  MET*     3.8    25.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    293A  GLU      3.2    19.8    +      -       -      +
    294A  ASP*     3.7     6.0    +      -       -      +
    296A  GLY*     1.3    73.6    -      -       -      +
    298A  TYR*     1.3    67.5    +      -       -      +
    300A  LYS*     3.2    32.0    +      -       -      +
    301A  VAL*     3.0    37.3    +      -       -      +
    319A  MET*     5.3     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279A  LEU*     3.9    10.3    -      -       +      -
    283A  PHE*     3.7    35.6    -      +       +      +
    285A  ASP*     4.3     9.0    -      -       -      +
    286A  TYR*     3.5    53.1    +      +       +      -
    294A  ASP      3.1    14.3    +      -       -      +
    295A  ALA*     3.3     7.6    +      -       -      +
    297A  ASN*     1.3    79.9    -      -       -      +
    299A  ILE*     1.3    65.2    +      -       -      +
    301A  VAL*     3.1     8.7    +      -       +      +
    302A  GLN*     3.1    54.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  LEU*     4.1    18.8    -      -       +      +
    226A  TYR*     4.8     0.2    -      -       +      -
    239A  MET*     3.7    33.7    -      -       +      -
    264A  LEU*     4.2     4.3    -      -       +      -
    270A  PHE*     3.7    30.7    -      -       +      -
    279A  LEU*     3.9    25.8    -      -       +      -
    283A  PHE*     4.1     9.9    -      -       +      -
    295A  ALA      3.0    19.1    +      -       -      +
    296A  GLY      3.7     4.7    -      -       -      +
    298A  TYR*     1.3    78.0    -      -       -      +
    300A  LYS*     1.3    63.4    +      -       -      +
    302A  GLN*     3.0    18.6    +      -       -      +
    303A  PHE*     3.3    26.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  LEU*     5.2     1.1    -      -       +      -
    264A  LEU*     3.7    22.0    -      -       +      -
    296A  GLY      3.1    14.1    +      -       -      +
    297A  ASN*     3.2    36.3    +      -       -      +
    299A  ILE*     1.3    76.5    -      -       -      +
    301A  VAL*     1.3    68.2    +      -       -      +
    303A  PHE*     3.2     6.6    +      -       -      +
    304A  LEU*     2.9    51.9    +      -       +      +
    317A  SER*     3.3    28.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297A  ASN*     3.0    32.3    +      -       -      +
    298A  TYR*     3.3    11.9    -      -       +      +
    300A  LYS*     1.3    86.6    -      -       -      +
    302A  GLN*     1.3    76.1    +      -       -      +
    304A  LEU*     4.6     4.5    -      -       -      +
    305A  GLU*     3.0    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  LEU*     3.8    13.2    -      -       +      +
    283A  PHE*     3.8    37.4    -      -       +      -
    298A  TYR*     3.1    53.1    +      -       +      +
    299A  ILE      3.0     7.5    +      -       -      +
    301A  VAL*     1.3    91.7    -      -       -      +
    303A  PHE*     1.3    62.5    +      -       -      +
    305A  GLU*     3.5    24.9    +      -       -      +
    306A  LEU*     3.4    16.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 303 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  PHE*     4.5     1.3    -      +       -      -
    221A  ALA*     3.6    15.5    -      -       +      -
    239A  MET*     4.2    14.8    -      -       +      -
    242A  SER*     3.5    44.9    -      -       -      -
    243A  LEU*     3.7    25.6    -      -       +      -
    246A  PHE*     3.1    41.9    -      +       +      -
    262A  LEU*     3.6    24.0    -      -       +      -
    264A  LEU*     4.2    11.9    -      -       +      -
    283A  PHE*     5.8     0.2    -      +       -      -
    299A  ILE*     3.3    39.8    +      -       +      -
    300A  LYS      3.2     7.0    +      -       -      +
    302A  GLN*     1.3    77.8    -      -       +      +
    304A  LEU*     1.3    65.4    +      -       -      +
    306A  LEU*     3.0    16.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 304 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  PHE*     4.5     4.7    -      -       +      -
    262A  LEU*     4.3    15.0    -      -       +      -
    300A  LYS*     2.9    52.7    +      -       +      +
    301A  VAL*     4.2     3.8    -      -       -      +
    303A  PHE*     1.3    70.5    -      -       -      +
    305A  GLU*     1.3    60.5    +      -       -      +
    306A  LEU      3.0     6.6    +      -       -      -
    307A  ASN*     3.1    22.2    +      -       +      +
    310A  ARG*     5.3     6.4    -      -       -      +
    315A  ILE*     3.8    44.6    -      -       +      +
    317A  SER*     4.2     8.1    -      -       -      +
----------------------------------------------------------
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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