Contacts of the strand formed by residues 243 - 248 (chain A) in PDB entry 1NSX


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 ASP 243 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ARG*     4.8     1.6    -      -       -      -
    198A  LEU*     3.3    22.5    -      -       -      +
    203A  GLU*     2.7    18.4    -      -       -      +
    239A  VAL*     4.0    19.3    -      -       +      +
    242A  ILE*     1.3    72.8    -      -       -      +
    244A  HIS*     1.3    69.4    +      -       -      +
    245A  PRO*     4.5     0.3    -      -       -      +
    277A  VAL*     4.6     3.3    -      -       -      +
    278A  ILE      3.2     4.7    -      -       -      -
    279A  PHE*     3.3    27.6    -      -       +      +
    282A  ASN*     4.1     2.0    -      -       -      +
   1400A  GAL      2.5    45.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  PHE*     3.4    27.1    -      +       +      -
    196A  VAL      3.4    20.6    -      -       -      -
    198A  LEU*     3.8    13.6    -      -       +      +
    217A  LEU*     5.6     2.8    -      -       +      +
    235A  GLN*     2.8    50.3    +      -       +      -
    236A  VAL*     5.4     0.7    -      -       +      -
    239A  VAL*     3.9    10.3    -      -       +      +
    241A  GLY      4.8     0.7    -      -       -      -
    242A  ILE*     3.9     9.2    -      -       +      +
    243A  ASP*     1.3   101.6    +      -       -      +
    245A  PRO*     1.3    66.6    -      -       +      +
    246A  PHE*     3.2    25.0    -      -       +      -
    277A  VAL*     4.1     4.8    -      -       -      +
    278A  ILE      2.9    32.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  PHE*     3.4     5.4    -      -       -      +
    196A  VAL*     3.1    51.4    +      -       +      +
    198A  LEU*     4.7     7.4    -      -       +      -
    205A  VAL*     5.4     2.2    -      -       +      -
    243A  ASP      4.5     1.3    -      -       -      +
    244A  HIS*     1.3    87.9    -      -       +      +
    246A  PHE*     1.3    61.8    +      -       -      +
    247A  LEU*     5.1     0.2    -      -       +      -
    275A  SER*     4.3     2.9    -      -       -      +
    276A  ILE      3.6     6.3    -      -       -      +
    277A  VAL*     4.0    14.4    -      -       +      -
    308A  SER*     3.2    31.9    -      -       -      +
    309A  PRO*     3.8    19.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  LEU*     3.6    27.4    -      -       +      -
    192A  ALA*     3.8    16.2    -      -       +      -
    194A  ARG      3.6     5.6    -      -       -      -
    195A  PHE*     4.0    25.8    -      +       +      -
    212A  ILE*     4.6     7.0    -      -       +      -
    217A  LEU*     4.0    35.4    -      -       +      -
    219A  PHE*     5.3     3.8    -      +       -      -
    242A  ILE*     3.7    29.4    -      -       +      -
    244A  HIS*     3.2    24.5    -      -       +      -
    245A  PRO*     1.3    73.9    -      -       -      +
    247A  LEU*     1.3    62.7    +      -       -      +
    248A  LEU*     3.6     1.8    +      -       +      +
    275A  SER*     3.2     7.1    -      -       -      -
    276A  ILE*     2.9    36.3    +      -       +      +
    278A  ILE*     4.0    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  ALA*     3.0    18.7    -      -       -      +
    193A  SER      4.0     1.0    +      -       -      -
    194A  ARG*     2.8    52.0    +      -       +      +
    196A  VAL*     4.2    14.6    -      -       +      -
    209A  ILE*     3.7    30.7    -      -       +      -
    245A  PRO      5.0     0.4    -      -       -      +
    246A  PHE*     1.3    74.0    -      -       -      +
    248A  LEU*     1.3    64.6    +      -       -      +
    249A  ASP*     3.5     4.3    +      -       -      +
    274A  PRO*     4.0     4.0    -      -       +      +
    275A  SER*     4.1    15.9    -      -       -      -
    308A  SER*     4.1     8.5    -      -       -      +
    317A  LEU*     4.0    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  LEU*     4.3    14.1    -      -       +      -
    191A  ALA      3.6     9.0    -      -       -      +
    192A  ALA*     4.5     2.2    -      -       +      -
    194A  ARG*     5.1     4.9    +      -       -      -
    246A  PHE      4.7     2.7    -      -       -      +
    247A  LEU*     1.3    75.7    -      -       -      +
    249A  ASP*     1.3    64.3    +      -       -      +
    250A  GLN      4.4     0.7    -      -       -      +
    251A  LEU*     3.8    19.1    -      -       +      +
    257A  GLN*     3.8    39.0    -      -       +      +
    271A  THR*     4.1     7.6    -      -       +      -
    273A  GLN      3.5    24.0    -      -       -      +
    274A  PRO      3.1    19.4    +      -       -      +
    275A  SER*     4.2     3.8    -      -       -      -
    276A  ILE*     4.0    32.5    -      -       +      -
----------------------------------------------------------
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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