Contacts of the strand formed by residues 71 - 82 (chain A) in PDB entry 1K89


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 VAL 71 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  PRO*     4.8     9.4    -      -       +      -
     64A  TRP      3.5     9.6    -      -       -      +
     65A  GLU*     4.5    12.1    -      -       +      +
     69A  GLY      4.2     7.6    -      -       -      +
     70A  LYS*     1.3    92.0    -      -       -      +
     72A  HIS*     1.3    71.4    +      -       -      +
     73A  VAL*     4.9     7.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  PRO*     3.2     4.0    -      -       -      +
     64A  TRP*     2.8    76.4    +      +       +      +
     66A  ASP*     2.8    28.4    +      -       +      +
     70A  LYS*     3.2    43.4    +      -       +      +
     71A  VAL*     1.3    74.8    +      -       -      +
     73A  VAL*     1.3    65.4    +      -       -      +
     74A  ASN*     4.5     2.5    -      -       -      +
    135A  LYS*     6.3     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ARG*     3.8    32.3    -      -       +      -
     62A  VAL      3.5     6.7    -      -       -      +
     63A  PRO*     4.4     8.1    -      -       +      -
     71A  VAL*     4.9     8.5    -      -       +      +
     72A  HIS*     1.3    81.9    -      -       -      +
     74A  ASN*     1.3    73.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ARG*     3.6     2.6    -      -       -      -
     62A  VAL*     2.7    40.4    +      -       -      +
     64A  TRP*     2.9    29.6    +      -       -      -
     72A  HIS*     4.5     1.6    -      -       -      +
     73A  VAL*     1.3    85.9    +      -       -      +
     75A  THR*     1.3    61.4    +      -       -      +
    128A  SER*     3.7    11.4    -      -       -      +
    129A  ASP*     3.0    25.2    +      -       -      +
    130A  PHE*     3.5    24.4    -      -       -      +
    131A  ASP      5.0     0.6    -      -       -      +
    143A  PHE*     4.1     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  GLU*     4.4    12.6    -      -       +      +
     60A  PHE      3.5    10.8    -      -       -      +
     61A  ARG*     4.9     1.1    -      -       -      +
     62A  VAL*     4.2     1.1    -      -       -      -
     74A  ASN*     1.3    78.8    +      -       -      +
     76A  GLY*     1.3    69.9    +      -       -      +
     77A  TYR*     3.8    28.4    -      -       +      +
    128A  SER*     2.7    32.0    +      -       -      -
    129A  ASP*     3.1    19.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  GLU*     3.0     5.4    -      -       -      -
     60A  PHE*     2.7    51.8    +      -       -      -
     62A  VAL*     3.7     3.6    -      -       -      +
     75A  THR*     1.3    76.7    -      -       -      +
     77A  TYR*     1.3    63.0    +      -       -      -
    127A  GLY      3.4     6.7    -      -       -      -
    147A  PHE*     3.8    16.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     5.8     0.2    -      -       +      -
     58A  ILE      3.3     7.2    -      -       -      -
     59A  GLU*     3.5    38.9    +      -       +      -
     60A  PHE*     4.0     5.2    -      -       -      -
     75A  THR*     3.8    33.6    -      -       +      +
     76A  GLY*     1.3    75.0    -      -       -      -
     78A  ARG*     1.3    64.4    -      -       -      +
     79A  VAL*     5.3     0.9    -      -       +      -
     92A  LEU*     4.8     0.5    -      -       -      +
     98A  VAL*     3.7    32.0    +      -       +      -
     99A  ASN*     3.9    11.3    -      -       -      +
    100A  LEU*     3.8    28.5    +      -       +      -
    103A  MET*     3.9    27.1    -      -       +      -
    126A  GLY*     3.1     1.4    -      -       -      -
    127A  GLY      2.8    31.7    +      -       -      +
    129A  ASP*     4.9     4.4    +      -       -      -
    147A  PHE*     4.6     5.5    -      -       -      -
    151A  LEU*     5.3     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     3.6     0.9    -      -       -      -
     58A  ILE*     2.8    50.0    +      -       +      +
     77A  TYR*     1.3    75.1    -      -       -      +
     79A  VAL*     1.3    63.1    +      -       -      +
     80A  GLN*     3.8    14.2    +      -       +      +
     90A  GLY      3.0    41.8    +      -       -      +
     91A  GLY      3.3     4.0    +      -       -      -
     92A  LEU*     3.7    13.7    -      -       -      +
    124A  ALA*     3.8    12.7    -      -       -      +
    125A  LYS*     3.4     9.1    -      -       -      +
    126A  GLY*     3.3    24.7    -      -       -      +
    151A  LEU*     4.1    24.7    -      -       +      -
    160A  ASP*     2.6    45.1    +      -       -      +
    162A  PRO*     3.6    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  PRO*     3.9    18.6    -      -       +      -
     56A  ARG      3.8     3.1    -      -       -      -
     57A  VAL*     4.3     7.6    -      -       +      +
     77A  TYR*     5.3     1.1    -      -       +      -
     78A  ARG*     1.3    76.1    -      -       -      +
     80A  GLN*     1.3    59.7    +      -       -      +
     81A  PHE*     3.4    30.8    +      -       +      -
    100A  LEU*     3.9    22.4    -      -       +      -
    103A  MET*     3.6    35.4    -      -       +      +
    104A  LYS*     4.3     6.7    -      -       +      +
    107A  GLY*     5.3     0.7    -      -       -      -
    124A  ALA*     3.1    22.2    -      -       -      +
    125A  LYS      2.9    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  PRO*     3.9     0.4    -      -       -      -
     55A  GLU*     3.1     5.2    +      -       -      +
     56A  ARG*     2.7    77.5    +      -       +      +
     58A  ILE*     4.0    11.5    -      -       -      +
     78A  ARG*     4.0    12.8    -      -       +      +
     79A  VAL*     1.3    70.9    -      -       -      +
     81A  PHE*     1.3    62.6    +      -       -      +
     82A  ASN      3.7     1.1    -      -       -      -
     88A  TYR*     3.7    31.8    -      -       +      -
    124A  ALA*     4.0     5.4    -      -       +      -
    154A  HIS*     3.0    27.6    +      -       -      +
    159A  ILE*     4.9     0.8    -      -       -      +
    160A  ASP*     2.9    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  PHE*     3.8    15.9    -      +       -      -
     51A  MET      3.3    26.4    -      -       -      +
     52A  VAL      3.6    15.9    -      -       -      -
     53A  ILE      4.3     1.4    -      -       -      +
     54A  PRO*     3.6    35.3    -      -       +      +
     55A  GLU*     3.1    22.6    +      -       -      +
     79A  VAL*     3.4    18.4    +      -       +      +
     80A  GLN*     1.3    74.9    -      -       -      +
     82A  ASN*     1.3    68.2    +      -       +      +
    104A  LYS*     3.5    26.5    -      -       +      -
    107A  GLY      3.6    15.9    -      -       -      +
    108A  PHE*     3.5    31.6    -      +       +      -
    111A  ALA*     5.1     2.0    -      -       +      -
    123A  GLY      3.1    14.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  MET*     4.7    16.6    +      -       -      +
     55A  GLU*     3.6     8.5    +      -       -      +
     80A  GLN      3.7     0.4    -      -       -      -
     81A  PHE*     1.3    85.1    +      -       +      +
     83A  GLY*     1.3    58.6    +      -       -      +
     84A  ALA*     3.1    34.0    +      -       -      +
     85A  ILE      4.9     0.2    +      -       -      -
     88A  TYR*     3.6     5.7    -      -       -      -
    111A  ALA*     4.1    20.1    -      -       +      +
    122A  GLY*     3.2     2.8    -      -       -      -
    123A  GLY      2.7    32.0    +      -       -      -
    438A  ILE*     3.7    29.9    -      -       +      +
    442A  MET*     3.8    16.1    -      -       -      +
----------------------------------------------------------
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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