Contacts of the strand formed by residues 87 - 98 (chain A) in PDB entry 3U53


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 87 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  VAL*     3.3     8.3    -      -       -      +
     84A  ALA*     2.7    42.6    +      -       -      +
     85A  ARG*     4.1     4.9    -      -       +      +
     86A  ASN*     1.3    80.1    -      -       -      +
     88A  PRO*     1.3    73.0    -      -       +      +
     89A  LYS*     4.5     3.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  TYR      3.7     5.4    -      -       -      +
     83A  VAL*     4.6     5.6    -      -       +      -
     86A  ASN      4.6     1.1    -      -       -      +
     87A  LYS*     1.3    87.9    -      -       +      +
     89A  LYS*     1.3    61.5    +      -       -      +
     90A  THR      4.4     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  LEU      3.7     0.8    -      -       -      +
     81A  ASN*     3.5     5.2    -      -       -      +
     82A  TYR*     2.7    73.5    +      -       +      +
     84A  ALA*     4.0    17.0    -      -       +      +
     87A  LYS*     4.5     3.6    -      -       +      +
     88A  PRO*     1.3    76.8    -      -       -      +
     90A  THR*     1.3    65.9    +      -       -      +
     91A  VAL*     4.9     4.5    -      -       +      -
    157A  SO4      4.4     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     3.6    37.6    -      -       +      +
      5A  ALA*     2.9    26.2    +      -       -      +
     79A  GLU*     4.0    30.5    -      -       +      +
     80A  LEU      3.4     3.8    -      -       -      +
     81A  ASN*     3.2    16.2    +      -       -      +
     88A  PRO      4.4     0.4    +      -       -      -
     89A  LYS*     1.3    73.1    +      -       -      +
     91A  VAL*     1.3    67.6    +      -       -      +
     92A  ILE*     4.5     2.7    -      -       +      -
    129D  LYS*     4.4    11.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ALA*     3.1    22.7    -      -       +      +
     42A  LYS*     4.0    22.7    -      -       +      -
     78A  ARG      3.6     1.4    -      -       -      +
     79A  GLU*     3.4     2.1    -      -       -      -
     80A  LEU*     2.8    37.2    +      -       +      +
     82A  TYR*     3.7    31.4    -      -       +      +
     89A  LYS*     4.9     3.1    -      -       +      -
     90A  THR*     1.3    83.5    -      -       -      +
     92A  ILE*     1.3    67.9    +      -       -      +
     93A  TYR*     3.7    33.8    -      -       +      -
    131A  MET*     6.4     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     4.6    12.8    -      -       -      +
      5A  ALA      2.9     7.7    +      -       -      +
      6A  CYS*     3.2    16.5    -      -       -      +
      7A  GLY      2.8    26.3    +      -       -      +
     51A  ASP*     3.9    17.7    -      -       -      +
     77A  LYS*     3.7    30.3    -      -       +      -
     78A  ARG      3.5     4.3    -      -       -      +
     79A  GLU*     3.3    43.1    -      -       +      +
     90A  THR*     4.5     4.9    -      -       +      -
     91A  VAL*     1.3    75.6    -      -       -      +
     93A  TYR*     1.3    64.2    -      -       -      +
     94A  TRP*     3.7    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  GLY*     3.4    31.2    -      -       -      -
      8A  LEU      3.6     2.0    -      -       -      -
      9A  ILE*     3.9    30.5    -      -       +      -
     39A  THR*     4.1     0.3    -      -       -      -
     40A  PRO*     3.7    27.5    -      -       +      +
     41A  PRO      4.0     4.3    -      -       -      -
     42A  LYS*     2.9    26.6    -      -       +      +
     76A  PHE*     4.4     1.5    -      -       -      -
     77A  LYS*     3.2     6.2    -      -       -      +
     78A  ARG*     2.8    42.6    +      -       +      +
     80A  LEU*     4.1    16.6    -      -       +      -
     91A  VAL*     3.7    18.4    -      -       +      -
     92A  ILE*     1.3    78.0    -      -       -      +
     94A  TRP*     1.3    63.4    +      -       -      +
    131A  MET*     3.3    36.5    -      -       +      +
    134A  ALA*     5.4     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  CYS*     4.6     0.9    -      -       -      -
      7A  GLY      3.3    14.0    +      -       -      -
      8A  LEU*     3.4    18.5    -      -       +      -
      9A  ILE*     2.8    27.3    +      -       -      +
     51A  ASP*     3.9    17.7    -      -       +      -
     52A  LEU*     3.5    62.2    -      -       +      +
     55A  ALA*     4.2     3.4    -      -       +      -
     72A  ILE*     4.5    14.8    -      -       +      -
     73A  ILE      5.0     2.2    -      -       -      -
     74A  GLU*     5.7     2.6    +      -       -      -
     75A  GLY      6.1     0.7    -      -       -      -
     76A  PHE*     3.1    29.1    +      -       -      -
     77A  LYS*     4.0    29.9    -      -       +      +
     92A  ILE*     3.7    27.8    -      -       +      -
     93A  TYR*     1.3    79.0    -      -       -      +
     95A  LEU*     1.3    63.5    +      -       -      +
    140D  GLN*     5.0     5.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  ILE*     3.5    22.9    -      -       +      +
     11A  PHE*     3.5    26.0    -      -       +      -
     26A  PHE*     4.7     4.3    -      -       +      -
     72A  ILE*     3.8     4.3    -      -       -      +
     73A  ILE*     3.0    34.6    +      -       +      +
     76A  PHE*     3.8    27.9    +      -       +      -
     94A  TRP*     1.3    74.6    -      -       -      +
     96A  ALA*     1.3    60.6    +      -       -      +
    138A  GLY*     3.6    26.7    -      -       -      +
    141A  PHE*     3.7    19.7    -      -       +      -
    142A  LEU*     3.7    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  LEU*     3.9    30.5    -      -       +      -
      9A  ILE      3.0     8.2    +      -       -      +
     10A  ILE*     3.5     7.4    -      -       +      -
     11A  PHE*     3.0    31.5    +      -       -      -
     70A  LEU*     4.0    16.6    -      -       +      -
     71A  THR      3.3    14.4    -      -       -      +
     72A  ILE*     4.4     4.3    -      -       +      -
     73A  ILE      4.5     0.2    -      -       -      +
     94A  TRP      4.0     0.2    +      -       -      -
     95A  LEU*     1.3    76.5    -      -       -      +
     97A  GLU*     1.3    61.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  PHE*     3.4    32.4    -      -       +      +
     12A  ARG*     5.1     1.1    -      -       -      -
     13A  ARG*     3.0    43.9    +      -       +      +
     70A  LEU*     3.5     4.7    -      -       -      -
     71A  THR*     2.8    43.8    +      -       -      +
     73A  ILE*     4.0    13.3    -      -       +      +
     96A  ALA*     1.3    74.9    -      -       -      +
     98A  VAL*     1.3    76.0    +      -       -      +
     99A  LYS      3.7     0.3    +      -       -      -
    159A  GOL      4.7     4.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  ILE*     3.6    26.5    -      -       +      -
     11A  PHE      3.0     6.8    +      -       -      +
     12A  ARG*     3.3    32.5    -      -       +      -
     65A  ILE*     4.3     7.6    -      -       +      -
     69A  GLN      3.5    11.2    -      -       -      +
     70A  LEU*     4.2     8.1    -      -       +      -
     97A  GLU*     1.3    82.9    -      -       -      +
     99A  LYS*     1.3    64.1    +      -       -      +
    100A  ASP      3.7    18.2    -      -       -      +
    103A  VAL*     4.1    15.9    -      -       +      -
    116A  TRP*     3.9     9.6    -      -       +      -
    159A  GOL      3.1    21.8    +      -       -      +
----------------------------------------------------------
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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