Contacts of the strand formed by residues 795 - 802 (chain A) in PDB entry 1IU1


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 ARG 795 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    752A  ALA*     3.3     4.3    -      -       -      +
    753A  ALA*     2.9    41.8    +      -       +      +
    794A  MET*     1.3    73.5    -      -       -      +
    796A  ILE*     1.3    63.0    +      -       -      +
    810A  LEU*     4.7    17.7    -      -       +      -
    811A  ALA      3.4     7.4    -      -       -      +
    812A  GLU*     3.2    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 796 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    709A  ALA*     5.1     5.4    -      -       +      +
    710A  TYR*     4.2    31.2    -      -       +      -
    717A  ILE*     4.5     3.4    -      -       +      -
    719A  PHE*     4.6     1.6    -      -       +      -
    750A  PHE*     3.7    35.7    -      -       +      -
    751A  GLN      3.3     7.9    -      -       -      +
    752A  ALA*     4.3     0.4    -      -       +      -
    794A  MET*     4.1    10.3    -      -       -      -
    795A  ARG*     1.3    78.7    -      -       -      +
    797A  LYS*     1.3    60.2    +      -       -      +
    798A  LEU*     4.2    14.8    -      -       +      -
    809A  ASP      3.9     0.5    -      -       -      +
    810A  LEU*     3.3     7.0    -      -       -      +
    811A  ALA*     2.7    50.9    +      -       +      +
    813A  VAL*     3.8    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 797 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    749A  VAL      3.6     2.9    -      -       -      +
    751A  GLN*     2.9    65.3    +      -       +      +
    796A  ILE*     1.3    74.1    -      -       -      +
    798A  LEU*     1.3    68.2    +      -       -      +
    799A  THR*     4.0    12.9    -      -       +      +
    808A  GLN*     3.1    41.2    +      -       -      +
    809A  ASP      3.3     8.3    -      -       -      +
    810A  LEU*     4.2    14.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 798 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    710A  TYR*     3.6    40.6    -      -       +      +
    715A  LEU*     3.8     8.1    -      -       +      -
    717A  ILE*     3.6    34.1    -      -       +      -
    748A  PHE*     4.3     9.9    -      -       +      -
    749A  VAL      3.5     2.5    -      -       -      +
    750A  PHE*     3.7    20.9    -      -       +      -
    796A  ILE*     4.3    11.0    -      -       +      -
    797A  LYS*     1.3    81.0    -      -       -      +
    799A  THR*     1.3    66.2    +      -       -      +
    800A  TYR*     4.6    13.9    -      -       +      -
    808A  GLN*     3.1     6.2    -      -       -      +
    809A  ASP*     2.9    37.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 799 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747A  ASP      3.5     2.3    +      -       -      +
    748A  PHE*     3.4     0.9    -      -       -      -
    749A  VAL*     2.8    53.0    +      -       -      +
    751A  GLN*     4.9     5.0    +      -       -      +
    797A  LYS*     4.0    29.8    -      -       +      +
    798A  LEU*     1.3    79.7    -      -       -      +
    800A  TYR*     1.3    68.1    +      -       -      +
    807A  MET      3.3    11.7    -      -       -      +
    808A  GLN*     4.2     7.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 800 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    710A  TYR*     5.2     4.2    +      -       -      -
    712A  LYS      4.6     0.7    +      -       -      -
    713A  ASN*     4.2    16.1    +      -       -      +
    715A  LEU*     3.7    29.0    -      -       +      +
    745A  MET*     3.7    33.5    -      -       +      +
    746A  THR      3.4    13.9    -      -       -      +
    747A  ASP*     3.8     4.7    -      -       -      -
    748A  PHE*     3.8    28.0    -      +       +      -
    798A  LEU*     4.6     7.9    -      -       +      -
    799A  THR*     1.3    84.1    -      -       -      +
    801A  ASN*     1.3    58.5    +      -       -      +
    802A  HIS*     3.7    19.0    +      +       +      -
    806A  ALA*     3.7     1.8    -      -       -      -
    807A  MET*     2.7    76.5    +      -       +      +
    808A  GLN*     5.4     1.6    -      -       -      -
    809A  ASP*     6.2     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 801 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    744A  ASP      3.8     1.4    -      -       -      +
    745A  MET*     3.4     3.6    -      -       -      -
    746A  THR*     2.8    44.5    +      -       -      +
    747A  ASP*     2.8    32.7    +      -       -      +
    800A  TYR*     1.3    73.1    -      -       -      +
    802A  HIS*     1.3    65.4    +      -       -      +
    804A  GLY      6.2     0.7    -      -       -      +
    805A  SER      3.3    12.5    -      -       -      +
    806A  ALA*     3.6    16.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 802 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    713A  ASN*     4.3     7.3    +      -       -      +
    741A  THR*     3.0    41.6    +      -       +      -
    743A  LEU*     3.3    21.0    +      -       +      +
    744A  ASP      3.4    12.3    -      -       -      -
    745A  MET*     3.6    19.2    -      -       +      +
    800A  TYR*     3.7    21.1    +      -       +      -
    801A  ASN*     1.3    76.2    -      -       -      +
    803A  LYS*     1.3   104.2    +      -       +      +
    804A  GLY      3.1     2.4    -      -       -      +
    805A  SER*     2.9    30.8    +      -       -      +
    807A  MET*     4.0    11.8    -      -       +      +
----------------------------------------------------------
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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