Contacts of the helix formed by residues 897 - 911 (chain B) in PDB entry 1SO2


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 897 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    847A  ARG*     6.0     3.2    -      -       -      +
    848B  SER*     4.7    10.5    -      -       -      +
    891B  LEU*     5.0     8.1    -      -       +      +
    894B  ASP*     3.1    20.2    +      -       -      +
    896B  LYS*     1.3    80.8    -      -       +      +
    898B  HIS*     1.3    63.9    +      -       -      +
    899B  PHE      3.4     2.7    -      -       -      -
    900B  ASP*     3.1    26.7    +      -       -      +
    901B  PHE*     3.0    57.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 898 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    894B  ASP      3.9     1.0    +      -       -      -
    895B  LEU*     3.1    25.4    +      -       +      +
    896B  LYS      3.4     0.8    -      -       -      -
    897B  LYS*     1.3    76.0    -      -       -      +
    899B  PHE*     1.3    90.1    +      +       +      +
    901B  PHE*     3.4     2.6    +      -       -      +
    902B  LEU*     2.9    41.5    +      -       +      +
    934B  LYS*     2.9    37.4    +      -       -      +
    994B  HIS      4.4     1.2    +      -       -      -
    995B  ILE*     3.4    50.7    +      -       +      +
    999B  LEU*     3.9    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 899 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    895B  LEU      5.5     2.7    -      -       -      -
    896B  LYS      5.2     4.2    +      -       -      -
    897B  LYS      3.4     0.6    -      -       -      -
    898B  HIS*     1.3    94.3    -      +       +      +
    900B  ASP*     1.3    64.0    +      -       -      +
    902B  LEU*     3.8    11.4    -      -       +      +
    903B  ALA*     2.9    30.7    +      -       -      +
    994B  HIS*     3.7    30.1    -      -       +      -
    995B  ILE*     5.2     5.2    -      -       +      -
    998B  PRO*     5.7     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 900 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    896B  LYS      4.8     2.5    -      -       -      +
    897B  LYS*     3.1    33.6    +      -       +      +
    899B  PHE*     1.3    79.6    -      -       -      +
    901B  PHE*     1.3    58.1    +      -       +      +
    903B  ALA*     3.3     4.8    +      -       -      +
    904B  GLU*     2.8    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 901 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    891B  LEU      5.3     0.4    -      -       -      -
    892B  ALA*     3.7    34.1    -      -       +      -
    897B  LYS*     3.0    63.2    +      -       +      -
    898B  HIS      3.8     5.2    -      -       -      +
    900B  ASP*     1.3    72.9    -      -       +      +
    902B  LEU*     1.3    66.9    +      -       -      +
    904B  GLU*     3.7    15.0    -      -       -      +
    905B  PHE*     2.9    27.1    +      -       -      +
    927B  LEU*     4.1    13.5    -      -       +      +
    930B  GLN*     3.5    37.9    -      -       +      -
    931B  VAL*     4.8     6.7    -      -       +      +
    934B  LYS*     4.0    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 902 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    898B  HIS*     2.9    38.6    +      -       +      +
    899B  PHE*     3.8    12.1    -      -       +      +
    900B  ASP      3.3     0.2    -      -       -      -
    901B  PHE*     1.3    78.9    -      -       -      +
    903B  ALA*     1.3    57.2    +      -       -      +
    905B  PHE*     3.2     8.1    +      -       +      +
    906B  ASN*     2.9    43.8    +      -       -      +
    931B  VAL*     5.5     1.6    -      -       +      -
    934B  LYS*     5.5     0.8    -      -       -      +
    998B  PRO*     3.8    32.3    -      -       +      +
    999B  LEU*     3.9    23.6    -      -       +      +
   1002B  SER*     3.4    28.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 903 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    899B  PHE      2.9    19.0    +      -       -      +
    900B  ASP*     3.6     5.2    -      -       -      +
    902B  LEU*     1.3    71.4    -      -       -      +
    904B  GLU*     1.3    63.4    +      -       -      +
    905B  PHE      2.9     6.4    +      -       -      -
    906B  ASN*     3.2     9.5    +      -       -      +
    907B  ALA*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 904 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    900B  ASP*     2.8    24.4    +      -       -      +
    901B  PHE*     3.9    17.6    -      -       -      +
    903B  ALA*     1.3    73.2    -      -       -      +
    905B  PHE*     1.3    59.7    +      -       -      +
    907B  ALA*     3.8     7.5    -      -       -      +
    908B  LYS*     3.8    15.3    +      -       +      +
    927B  LEU*     3.2    30.7    -      -       +      +
    930B  GLN*     5.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 905 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    901B  PHE      2.9    18.8    +      -       -      +
    902B  LEU*     3.3     4.9    -      -       +      +
    904B  GLU*     1.3    76.2    -      -       -      +
    906B  ASN*     1.3    58.8    +      -       -      +
    907B  ALA      2.9     5.4    +      -       -      -
    908B  LYS*     3.1     3.5    +      -       -      +
    909B  ALA*     2.8    41.0    +      -       +      +
    910B  ASN*     4.0     6.7    -      -       -      -
    917B  ILE*     4.6     6.3    -      -       +      -
    927B  LEU*     3.3    20.6    -      -       +      -
    928B  VAL*     4.5    14.8    -      -       +      -
    931B  VAL*     3.6    38.8    -      -       +      -
   1002B  SER*     3.5    41.3    -      -       -      -
   1003B  TYR*     4.2     6.7    -      +       -      -
   1006B  ALA*     3.9    17.9    -      -       +      -
   1008B  LEU*     4.0    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 906 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    902B  LEU*     2.9    33.7    +      -       -      +
    903B  ALA*     3.8     7.6    -      -       -      +
    905B  PHE*     1.3    74.9    -      -       -      +
    907B  ALA*     1.3    57.5    +      -       -      +
    910B  ASN*     2.9    40.4    +      -       +      +
    911B  ASP*     2.7    31.7    +      -       -      +
   1002B  SER*     2.6    30.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 907 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    903B  ALA      3.1    15.2    +      -       -      +
    904B  GLU*     3.8     9.4    -      -       -      +
    905B  PHE      2.9     0.4    +      -       -      -
    906B  ASN*     1.3    81.4    -      -       -      +
    908B  LYS*     1.3    66.6    +      -       +      +
    909B  ALA      3.2     0.5    +      -       -      -
    911B  ASP*     3.9    22.0    +      -       -      +
    914B  SER*     4.5     7.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 908 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    904B  GLU*     3.8    11.8    +      -       +      +
    905B  PHE      3.1     5.4    +      -       -      +
    907B  ALA*     1.3    81.5    -      -       +      +
    909B  ALA*     1.3    57.7    +      -       -      +
    914B  SER*     5.2     3.5    -      -       -      -
    916B  GLY*     2.9    31.5    -      -       -      +
    917B  ILE*     3.6     6.8    +      -       +      +
    918B  GLU*     3.6    16.4    +      -       -      +
    921B  ASN*     3.8     9.1    -      -       -      +
    923B  ASN*     5.6     3.5    -      -       -      +
    924B  ASP*     2.8    39.6    +      -       -      +
    927B  LEU*     4.5    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 909 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    905B  PHE*     2.8    35.8    +      -       +      +
    908B  LYS*     1.3    81.4    -      -       -      +
    910B  ASN*     1.3    67.5    +      -       -      +
    911B  ASP      3.9     0.9    -      -       -      -
    914B  SER*     6.3     0.4    -      -       -      -
    916B  GLY*     4.2    14.4    -      -       -      -
    917B  ILE*     3.3    28.5    -      -       +      -
   1006B  ALA*     4.3    12.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 910 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    905B  PHE*     4.0    11.1    -      -       -      -
    906B  ASN*     2.9    33.4    +      -       -      +
    909B  ALA*     1.3    85.9    -      -       -      +
    911B  ASP*     1.3    73.1    +      -       -      +
   1002B  SER*     2.9    27.3    +      -       -      +
   1005B  ALA*     3.0    19.4    -      -       +      +
   1006B  ALA*     3.0    22.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 911 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    906B  ASN*     2.7    35.7    +      -       -      +
    907B  ALA*     3.9    11.5    +      -       -      +
    909B  ALA      3.9     0.8    -      -       -      -
    910B  ASN*     1.3    89.4    -      -       -      +
    912B  VAL*     1.3    81.0    +      -       +      +
    914B  SER*     3.1    22.2    +      -       -      +
----------------------------------------------------------
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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