Contacts of the strand formed by residues 184 - 190 (chain A) in PDB entry 1T9A


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 MET 184 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  GLY*     3.9    22.9    -      -       -      +
    146A  ALA*     4.2     8.3    -      -       +      -
    147A  GLU*     4.1    10.1    -      -       -      +
    156A  PRO*     4.5     0.4    -      -       -      +
    157A  GLY*     3.2    19.7    -      -       -      +
    159A  VAL*     4.3     7.2    -      -       +      -
    173A  PRO*     3.6    28.3    -      -       +      +
    174A  MET*     3.6    24.9    -      -       +      +
    177A  ALA*     3.7    10.1    -      -       +      -
    182A  ILE*     3.3     6.0    +      -       +      +
    183A  PRO*     1.3    76.7    -      -       -      +
    185A  VAL*     1.3    62.4    +      -       -      +
    186A  VAL*     3.9    16.2    -      -       +      -
    237A  ALA*     4.0     2.9    -      -       -      +
    243A  GLY      3.3     7.2    +      -       -      +
    244A  PRO*     3.1    11.9    -      -       +      +
    245A  VAL*     2.8    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  PRO*     4.6     5.4    -      -       +      -
    157A  GLY      2.9    10.5    +      -       -      +
    158A  VAL*     3.5     5.4    -      -       +      +
    159A  VAL      3.0    24.4    +      -       -      +
    184A  MET*     1.3    77.1    -      -       -      +
    186A  VAL*     1.3    61.9    +      -       -      +
    187A  PHE*     3.4    36.7    +      -       +      -
    233A  ALA*     4.0     9.6    -      -       +      -
    234A  PHE*     3.8    45.3    -      -       +      -
    237A  ALA*     4.2     5.8    -      -       +      -
    245A  VAL*     3.7    21.8    -      -       +      -
    247A  VAL*     4.6     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  VAL*     3.8    20.9    -      -       +      -
    161A  VAL*     4.9     0.7    -      -       +      -
    170A  VAL*     4.0    20.0    -      -       +      -
    174A  MET*     3.9    29.6    -      -       +      -
    184A  MET*     3.9    24.0    -      -       +      +
    185A  VAL*     1.3    75.3    -      -       -      +
    187A  PHE*     1.3    62.8    +      -       -      +
    188A  THR*     4.0    21.1    -      -       +      -
    244A  PRO*     5.3     0.7    -      -       +      -
    245A  VAL      2.8    17.8    +      -       -      +
    246A  LEU*     3.3     5.1    -      -       +      +
    247A  VAL      2.8    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  PHE*     3.6    34.5    -      +       -      -
    102A  MET*     4.1    13.2    -      -       +      -
    158A  VAL*     3.9    19.1    -      -       +      -
    159A  VAL      2.8    20.5    +      -       -      +
    160A  LEU*     3.4    17.5    -      -       +      +
    161A  VAL*     3.0    28.9    +      -       -      +
    185A  VAL*     3.4    28.0    -      -       +      -
    186A  VAL*     1.3    71.4    -      -       -      +
    188A  THR*     1.3    61.5    +      -       -      +
    230A  ILE*     4.0    22.2    -      -       +      -
    234A  PHE*     4.1     8.1    -      +       -      -
    247A  VAL*     3.5    31.4    -      -       +      -
    249A  LEU*     3.9    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  ILE*     4.7     0.7    -      -       -      -
    161A  VAL*     3.5    25.1    -      -       +      -
    162A  THR      4.4     0.4    -      -       -      -
    167A  ALA*     3.7    25.4    -      -       +      -
    170A  VAL*     4.7     1.1    -      -       +      -
    186A  VAL*     3.8    15.4    +      -       +      -
    187A  PHE*     1.3    74.6    -      -       -      +
    189A  GLY*     1.3    61.8    +      -       -      +
    206A  VAL*     3.8     6.2    -      -       +      +
    246A  LEU*     3.8    15.9    -      -       +      +
    247A  VAL      3.1     4.6    +      -       -      -
    248A  ASP*     2.7    30.8    +      -       -      +
    249A  LEU*     2.7    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ALA*     4.0     4.5    -      -       -      -
    118A  ILE*     3.8    26.3    -      -       -      +
    161A  VAL      2.9    14.6    +      -       -      -
    162A  THR      3.8     1.6    -      -       -      -
    163A  SER*     2.9    28.8    -      -       -      -
    167A  ALA*     5.4     0.2    -      -       -      +
    188A  THR*     1.3    79.7    -      -       -      +
    190A  GLN*     1.3    60.0    +      -       -      +
    206A  VAL*     5.8     0.7    -      -       -      +
    248A  ASP*     4.0     3.1    -      -       -      +
    249A  LEU      3.5     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ALA*     3.4    15.6    -      -       -      +
    163A  SER*     3.7     7.6    -      -       -      -
    189A  GLY*     1.3    74.6    -      -       -      +
    191A  VAL*     1.3   102.9    +      -       -      +
    196A  ILE*     4.2    19.0    -      -       +      +
    203A  GLU*     4.2     2.1    -      -       -      +
    204A  ALA      3.1    35.0    +      -       -      +
    205A  ASP*     5.2     0.4    -      -       -      +
    206A  VAL*     4.7     2.8    -      -       -      +
    219A  MET*     4.7     6.7    -      -       -      +
    248A  ASP*     2.8    34.7    +      -       -      +
    249A  LEU      2.8     6.8    +      -       -      -
    250A  PRO*     3.7    20.0    -      -       +      -
    251A  LYS*     2.9    21.3    +      -       -      +
----------------------------------------------------------
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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