Contacts of the strand formed by residues 206 - 212 (chain A) in PDB entry 1U2X


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 GLY 206 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  PRO*     4.9     8.5    -      -       -      -
    186A  GLU*     3.5     6.1    -      -       -      +
    187A  PHE*     2.8    42.1    +      -       -      +
    205A  SER*     1.3    79.8    -      -       -      +
    207A  ARG*     1.3    63.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ILE*     5.0     6.3    -      -       -      +
     91A  PRO*     3.4    15.1    -      -       +      +
     92A  ALA      3.3    23.4    +      -       -      +
    115A  ARG*     5.1     9.3    -      -       -      +
    184A  ILE*     3.7    36.4    -      -       +      +
    185A  PHE      3.1     9.9    -      -       -      +
    186A  GLU*     3.8    22.4    +      -       -      +
    187A  PHE*     3.3     6.7    -      -       -      -
    206A  GLY*     1.3    75.8    +      -       -      +
    208A  PHE*     1.3    57.7    +      -       -      +
    209A  ILE*     4.0    23.4    -      -       +      +
    451A  VAL*     5.8     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ILE*     4.5     2.0    -      -       +      -
     78A  PHE*     3.8    31.9    -      +       -      -
     81A  ARG*     3.7    30.7    -      -       +      -
     82A  LEU*     3.5    32.5    -      -       +      -
     85A  THR*     3.7    28.9    -      -       +      -
     92A  ALA*     3.4    11.0    -      -       +      -
     94A  VAL*     3.4    35.7    -      -       +      -
    185A  PHE*     2.6    49.5    +      +       +      +
    187A  PHE*     3.8     2.6    -      -       +      -
    207A  ARG*     1.3    73.4    -      -       -      +
    209A  ILE*     1.3    57.6    +      -       -      +
    210A  VAL*     3.9    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  ALA      2.8    16.7    +      -       -      +
     93A  ALA*     3.2    12.3    -      -       +      -
     94A  VAL*     2.8    30.0    +      -       -      +
    182A  ASN*     5.2     4.0    -      -       +      -
    183A  ARG      3.4     5.2    -      -       -      +
    184A  ILE*     3.3    34.1    -      -       +      -
    207A  ARG*     4.0    26.9    -      -       +      +
    208A  PHE*     1.3    78.4    -      -       -      +
    210A  VAL*     1.3    67.8    +      -       -      +
    211A  SER*     3.9    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ILE*     3.8    15.5    -      -       +      -
     78A  PHE*     4.1     8.1    -      -       +      -
     94A  VAL      3.2    11.9    -      -       -      +
     96A  LEU*     3.8    27.5    -      -       +      +
    105A  PHE*     4.2    10.5    -      -       +      -
    181A  ILE      4.2     2.1    -      -       -      +
    182A  ASN*     3.4     3.6    -      -       -      -
    183A  ARG*     2.8    43.9    +      -       +      +
    185A  PHE*     3.8    25.8    -      -       +      -
    208A  PHE*     3.9    20.0    -      -       +      -
    209A  ILE*     1.3    76.8    -      -       -      +
    211A  SER*     1.3    59.9    +      -       -      +
    212A  ALA      3.9     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ALA*     5.4     4.3    -      -       -      +
     94A  VAL      3.2    11.8    +      -       -      -
     95A  PRO*     3.4     7.2    -      -       -      +
     96A  LEU*     2.7    32.5    +      -       -      -
    182A  ASN*     3.5    13.2    +      -       -      +
    209A  ILE*     3.9    13.4    -      -       -      +
    210A  VAL*     1.3    73.2    -      -       -      +
    212A  ALA*     1.3    62.6    +      -       -      +
    213A  ARG*     3.3     7.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  LEU*     4.2     6.0    -      -       -      +
    180A  LYS*     3.5    33.9    -      -       +      -
    181A  ILE      3.6    19.1    +      -       -      +
    182A  ASN*     2.7    21.0    +      -       -      +
    211A  SER*     1.3    69.9    -      -       -      +
    213A  ARG*     1.3    64.3    +      -       -      +
    214A  PHE*     3.9    20.6    -      -       +      -
    217A  ILE*     3.8    10.8    -      -       +      +
----------------------------------------------------------
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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