Contacts of the strand formed by residues 185 - 198 (chain A) in PDB entry 3AA6


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 185 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  THR*     2.9    44.4    +      -       -      +
    183A  PRO      3.4     1.2    -      -       -      -
    184A  PRO*     1.3    91.0    -      -       +      +
    186A  ALA*     1.3    63.4    +      -       -      +
    187A  GLN*     3.4     9.0    +      -       -      -
    215A  SER*     4.3    13.1    +      -       -      +
    216A  VAL      3.2    14.6    -      -       -      +
    217A  GLN*     3.9    12.8    -      -       +      +
    218A  VAL*     3.6     8.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  PHE*     4.7     3.6    -      -       +      -
    180A  THR      3.2    17.7    -      -       -      +
    181A  ILE*     4.3     2.9    -      -       -      -
    182A  THR*     4.1     0.7    -      -       -      -
    185A  THR*     1.3    76.0    -      -       -      +
    187A  GLN*     1.3    68.0    +      -       -      +
    188A  VAL*     3.7     0.6    +      -       +      -
    215A  SER*     3.2     5.4    -      -       -      -
    216A  VAL*     2.7    34.2    +      -       +      +
    218A  VAL*     3.4    19.1    -      -       +      -
    228A  PHE*     4.2    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  LYS      3.5     1.6    -      -       -      +
    179A  PHE*     3.4     3.8    -      -       -      -
    180A  THR*     2.9    42.4    +      -       -      +
    182A  THR*     2.4    41.4    +      -       -      +
    185A  THR*     3.4    16.5    +      -       -      -
    186A  ALA*     1.3    70.9    -      -       -      +
    188A  VAL*     1.3    60.9    +      -       -      +
    214A  ASP      3.7     6.7    -      -       -      +
    215A  SER*     3.5    13.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  TRP*     3.4    39.5    -      -       +      -
    178A  LYS      3.4     4.3    -      -       -      +
    179A  PHE*     3.7    31.4    -      -       +      -
    186A  ALA      4.1     8.5    -      -       -      +
    187A  GLN*     1.3    77.4    -      -       -      +
    189A  ALA*     1.3    62.4    +      -       -      +
    190A  ALA      4.3     0.4    -      -       -      +
    212A  ILE*     4.5     1.3    -      -       +      -
    213A  GLN*     3.4     6.8    -      -       -      +
    214A  ASP*     2.8    51.7    +      -       +      +
    215A  SER      4.4     0.7    -      -       -      +
    216A  VAL*     4.2    18.6    -      -       +      -
    231A  ILE*     4.7     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176A  GLU      4.1     0.2    -      -       -      +
    178A  LYS*     2.8    46.5    +      -       +      +
    187A  GLN      4.1     0.2    -      -       -      -
    188A  VAL*     1.3    75.4    -      -       -      +
    190A  ALA*     1.3    61.5    +      -       -      +
    212A  ILE      3.4     7.9    -      -       -      +
    213A  GLN*     5.6     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176A  GLU      3.1    14.8    -      -       -      +
    177A  TRP*     3.3    42.4    -      -       +      +
    189A  ALA*     1.3    76.5    -      -       -      +
    191A  VAL*     1.3    65.8    +      -       -      +
    192A  LEU*     4.8     0.2    -      -       +      -
    211A  ASP*     3.5     4.7    -      -       -      +
    212A  ILE*     2.9    41.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  ARG      4.1     0.2    -      -       -      +
    175A  SER*     3.3     2.8    -      -       -      -
    176A  GLU*     2.9    51.3    +      -       +      +
    190A  ALA*     1.3    77.4    -      -       -      +
    192A  LEU*     1.3    70.9    +      -       -      +
    193A  LYS*     4.0    30.3    -      -       +      +
    209A  HIS*     4.3     9.2    -      -       +      -
    210A  LYS      3.3     9.0    -      -       -      +
    211A  ASP*     3.5    20.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  TRP*     4.7     2.0    -      -       +      -
    174A  ARG      3.6     4.5    -      -       -      -
    175A  SER*     3.5    23.1    -      -       -      -
    177A  TRP*     3.6    26.5    -      -       +      +
    190A  ALA*     4.8     0.2    -      -       +      -
    191A  VAL*     1.3    77.2    -      -       -      +
    193A  LYS*     1.3    60.5    -      -       -      +
    209A  HIS*     3.0     8.4    -      -       -      +
    210A  LYS*     2.9    37.6    +      -       +      +
    212A  ILE*     4.2    20.6    -      -       +      -
    235A  ALA      4.2     9.4    -      -       -      +
    236A  GLU*     3.7    12.6    -      -       +      +
    239A  TYR*     3.5    51.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  ARG      4.0     0.4    -      -       -      +
    173A  TRP*     3.4     2.5    -      -       -      -
    174A  ARG*     2.8    83.8    +      -       +      +
    191A  VAL*     4.0    29.2    -      -       +      +
    192A  LEU*     1.3    80.8    -      -       -      +
    194A  ILE*     1.3    68.6    +      -       -      +
    208A  SER      3.2     9.0    -      -       -      +
    209A  HIS*     4.0    13.2    -      -       +      -
    239A  TYR*     4.2     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  ARG      3.4     7.6    -      -       -      +
    173A  TRP*     3.7    28.3    -      -       +      -
    174A  ARG*     5.4     2.1    +      -       -      -
    193A  LYS*     1.3    81.4    -      -       -      +
    195A  GLN*     1.3    64.7    +      -       -      +
    196A  VAL*     4.0    14.8    -      -       +      -
    206A  LEU*     3.8    20.6    -      -       +      +
    207A  VAL*     3.5     5.2    -      -       -      +
    208A  SER*     2.9    36.3    +      -       -      +
    239A  TYR*     3.5    17.7    -      -       +      +
    240A  GLN*     6.0     0.2    -      -       -      -
    243A  ILE*     3.3    34.1    -      -       +      -
    240B  VAL*     4.1    16.2    -      -       +      -
    243B  LEU*     4.1     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  HIS      5.3     0.4    +      -       -      -
     24A  ALA      5.0     2.0    +      -       -      +
     25A  PRO*     3.9    10.2    -      -       +      +
     26A  PRO*     3.3    34.1    -      -       +      +
     61A  GLN*     4.7    11.1    +      -       -      +
    171A  GLY*     3.3     2.4    -      -       -      -
    172A  ARG*     2.9    35.5    +      -       +      +
    174A  ARG*     4.7    14.2    +      -       -      +
    194A  ILE*     1.3    76.0    -      -       -      +
    196A  VAL*     1.3    68.9    +      -       -      +
    205A  GLN*     2.9    28.2    +      -       -      +
    206A  LEU      3.2    10.1    -      -       -      +
    207A  VAL*     4.5    12.7    -      -       +      +
     17B  PRO*     4.1    13.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  PRO*     5.7     0.2    -      -       -      -
    170A  ASN      3.5     4.5    -      -       -      +
    194A  ILE*     4.0     9.0    -      -       +      -
    195A  GLN*     1.3    83.4    -      -       -      +
    197A  HIS*     1.3    65.4    +      -       -      +
    205A  GLN*     3.0     9.4    -      -       -      +
    206A  LEU*     3.0    39.2    +      -       +      -
    236B  THR*     4.0    20.0    -      -       +      -
    239B  ILE*     3.7    49.8    -      -       +      -
    240B  VAL*     3.8    26.9    -      -       +      +
    243B  LEU*     4.3     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  PRO*     3.6    13.0    -      -       +      +
     26A  PRO*     5.3     2.0    -      -       +      +
     28A  GLU*     2.6    41.3    +      -       -      +
    169A  TRP*     3.1     7.7    -      -       -      +
    170A  ASN*     2.8    36.1    +      -       +      +
    195A  GLN*     5.7     0.2    -      -       -      +
    196A  VAL*     1.3    76.9    -      -       -      +
    198A  TYR*     1.3    66.0    +      -       -      +
    199A  TYR*     3.3    19.9    -      +       -      +
    203A  ASN*     2.9    20.3    +      -       -      -
    204A  VAL      3.4     2.9    -      -       -      -
    205A  GLN*     3.4    19.0    +      -       +      +
     14B  ARG      2.9    29.1    +      -       -      -
     15B  ARG*     3.7     9.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ASN      4.5     9.4    -      -       -      -
    168A  PHE      3.4     9.4    -      -       -      -
    169A  TRP*     4.2     9.6    -      +       +      -
    196A  VAL*     4.3     0.6    -      -       -      +
    197A  HIS*     1.3    73.6    -      -       -      +
    199A  TYR*     1.3    61.8    +      -       -      +
    200A  GLU*     3.2    53.8    +      -       +      +
    203A  ASN*     3.6     0.9    +      -       -      -
    204A  VAL*     2.9    38.0    +      -       +      +
    193B  LEU*     4.3    10.8    -      -       +      -
    231B  ILE*     3.4    47.1    -      -       +      +
    235B  LYS*     3.3    38.1    +      -       +      -
    236B  THR*     4.5    11.9    -      -       +      -
    239B  ILE*     5.1     2.2    -      -       +      -
----------------------------------------------------------
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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