Contacts of the strand formed by residues 198 - 206 (chain B) in PDB entry 1P4A


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 198 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130B  GLU*     3.1    45.6    -      -       -      +
    131B  ILE*     3.6     1.7    -      -       -      -
    132B  ASP*     2.6    50.7    +      -       -      +
    133B  VAL      3.4     6.9    +      -       -      +
    196B  GLY      4.4     3.4    +      -       -      -
    197B  SER*     1.3    70.7    -      -       -      +
    199B  VAL*     1.3    59.2    +      -       -      +
    225B  ASN*     3.1    32.0    +      -       -      +
    227B  ALA*     4.0     7.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133B  VAL*     3.5    13.9    -      -       +      -
    135B  MET*     3.6    30.7    -      -       +      -
    193B  MET*     3.6    30.1    -      -       -      -
    197B  SER*     3.8    13.7    -      -       -      +
    198B  ASN*     1.3    75.8    -      -       -      +
    200B  LEU*     1.3    66.9    +      -       -      +
    201B  ILE*     3.7     3.7    +      -       +      +
    219B  LEU*     3.8    26.7    -      -       +      -
    224B  ALA*     4.2     1.1    -      -       +      -
    225B  ASN      2.8    15.7    +      -       -      +
    226B  VAL*     3.7     4.9    -      -       -      +
    227B  ALA*     2.9    27.2    +      -       -      +
    228B  GLY      3.6     4.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  PHE*     5.1     1.3    -      -       +      +
    126B  PHE*     3.8    34.8    -      -       +      -
    131B  ILE*     3.9    34.6    -      -       +      +
    133B  VAL      3.0     8.5    +      -       -      +
    134B  VAL*     3.3    12.7    -      -       +      +
    135B  MET      2.8    27.1    +      -       -      -
    148B  ALA*     5.0     2.7    -      -       +      -
    152B  LEU*     3.9    20.2    -      -       +      -
    198B  ASN      4.1     0.6    +      -       -      -
    199B  VAL*     1.3    71.8    -      -       -      +
    201B  ILE*     1.3    68.2    +      -       -      +
    202B  ILE*     3.7    19.4    +      -       +      -
    227B  ALA*     5.0     0.2    -      -       -      -
    228B  GLY*     3.4    30.3    -      -       -      +
    229B  ILE      3.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  MET*     3.4     8.3    -      -       -      +
    199B  VAL*     4.2    17.0    -      -       +      +
    200B  LEU*     1.3    75.8    -      -       -      +
    202B  ILE*     1.3    64.8    +      -       -      +
    212B  ILE*     4.2    17.3    -      -       +      +
    215B  MET*     3.7    50.7    -      -       +      -
    216B  ILE*     4.1    21.8    -      -       +      +
    219B  LEU*     3.9    18.8    -      -       +      -
    226B  VAL*     4.6     8.1    -      -       +      -
    228B  GLY      2.9    12.8    +      -       -      +
    229B  ILE*     3.3    11.1    -      -       +      +
    230B  GLY      2.8    25.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  PHE*     3.8    33.0    -      -       +      -
    134B  VAL*     3.8    21.1    -      -       +      -
    135B  MET      2.9     7.2    +      -       -      +
    136B  THR*     2.8    25.5    +      -       -      -
    141B  GLY      4.7     0.4    -      -       -      +
    144B  LEU*     3.8    29.4    -      -       +      -
    145B  ALA*     4.0    16.4    -      -       +      +
    148B  ALA*     4.4     6.5    -      -       +      -
    200B  LEU*     3.9    22.0    -      -       +      -
    201B  ILE*     1.3    86.6    -      -       -      +
    203B  ASP*     1.3    68.3    +      -       -      +
    215B  MET*     4.6     0.3    -      -       -      +
    230B  GLY*     3.1    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136B  THR*     3.5     7.0    +      -       -      -
    137B  VAL*     3.9    10.6    -      -       -      +
    141B  GLY*     3.5    14.4    -      -       -      -
    144B  LEU*     4.0     9.0    -      -       -      +
    202B  ILE*     1.3    78.1    -      -       -      +
    204B  ASP*     1.3    75.4    +      -       -      +
    205B  PHE      4.5     4.3    -      -       -      +
    211B  THR*     4.0     4.3    -      -       -      +
    212B  ILE*     4.3    24.0    -      -       +      +
    215B  MET*     4.2     4.4    -      -       +      +
    230B  GLY      2.9     7.9    +      -       -      -
    231B  VAL*     3.0    26.8    -      -       +      +
    232B  LEU      3.1     3.3    +      -       -      -
    605B  PCP      2.2    43.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  LEU*     4.0    14.9    -      -       +      +
    109B  LEU*     4.1    14.7    -      -       +      +
    140B  LYS*     3.5    30.6    -      -       -      +
    141B  GLY*     3.8     1.4    +      -       -      -
    144B  LEU*     3.5    23.6    -      -       +      +
    203B  ASP*     1.3    79.6    +      -       -      +
    205B  PHE*     1.3    77.9    +      -       -      +
    231B  VAL*     4.8     0.2    -      -       -      -
    232B  LEU*     3.2     8.1    -      -       +      +
    233B  VAL*     2.9    26.6    +      -       -      +
    605B  PCP      2.9    30.2    +      -       -      +
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Residues in contact with PHE 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  GLY      3.9    16.2    -      -       -      -
    102B  TYR*     3.5    44.0    -      +       -      -
    103B  VAL*     4.7     8.5    -      -       +      -
    105B  LEU*     4.3    11.0    -      -       +      -
    203B  ASP*     3.6     3.9    -      -       -      +
    204B  ASP*     1.3    95.8    -      -       -      +
    206B  MET*     1.3    60.1    +      -       -      +
    207B  LYS*     3.8    25.4    -      -       +      -
    231B  VAL*     5.2     0.7    -      -       -      -
    233B  VAL*     3.2    35.4    -      -       +      -
    235B  ALA*     4.0    17.0    -      -       +      -
    252B  LEU*     4.0    14.6    -      -       +      -
    605B  PCP      3.2    34.4    +      +       +      +
----------------------------------------------------------
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Residues in contact with MET 206 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205B  PHE*     1.3    72.3    -      -       -      +
    207B  LYS*     1.3    61.3    +      -       -      +
    209B  GLY*     3.9    12.8    -      -       -      -
    212B  ILE*     3.9    19.5    -      -       +      -
    231B  VAL*     4.2    16.5    -      -       +      +
    233B  VAL      2.8    12.9    +      -       -      +
    234B  GLU*     3.4    11.9    -      -       +      +
    235B  ALA      2.9    27.2    +      -       -      -
    238B  VAL*     3.8    26.0    -      -       +      +
    243B  VAL*     3.8    31.0    -      -       -      -
    246B  TYR*     3.7    42.4    -      -       +      -
    605B  PCP      3.5     4.3    -      -       -      +
----------------------------------------------------------
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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