Contacts of the strand formed by residues 219 - 224 (chain 1) in PDB entry 1KZC


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 LEU 219 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1191  SER*     4.3     5.8    -      -       -      +
    1201  SER*     3.6    21.5    -      -       -      +
    1211  VAL*     3.5    24.9    -      -       -      +
    1221  ARG      3.6    15.5    -      -       -      +
    1231  ARG*     3.4    20.9    -      -       +      +
    1561  ALA      5.2     0.2    -      -       -      -
    1571  LYS*     4.3    11.7    -      -       +      +
    1581  ASP*     3.6    39.0    -      -       +      +
    1591  VAL      3.3    10.3    +      -       -      +
    1601  ALA*     3.7     8.5    -      -       +      -
    1611  PHE*     2.9    22.5    +      -       -      +
    2181  PHE*     1.3    81.0    -      -       -      +
    2201  VAL*     1.3    60.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 220 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1181  MET      4.0     0.5    -      -       -      +
    1191  SER*     3.4     2.9    +      -       -      -
    1201  SER*     2.8    53.3    +      -       -      +
    1241  MET*     4.1    11.2    -      -       +      -
    1291  ALA*     3.6    29.6    -      -       +      -
    1321  LEU*     3.9    18.6    -      -       +      -
    1331  CYS*     3.8    23.1    -      -       -      -
    1401  VAL*     4.0    11.0    -      -       +      -
    1601  ALA*     4.4     0.4    -      -       -      -
    1611  PHE*     4.3     4.9    -      -       +      +
    2181  PHE      5.0     1.1    -      -       -      +
    2191  LEU*     1.3    75.4    -      -       -      +
    2211  VAL*     1.3    68.9    +      -       -      +
    2221  CYS*     4.1     3.5    +      -       -      -
    1362  LEU*     4.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 221 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1171  PHE*     4.0     7.2    -      -       +      -
    1181  MET      3.3    10.3    -      -       -      +
    1191  SER*     4.3     4.5    -      -       -      -
    1401  VAL*     3.7     8.8    -      -       -      +
    1411  ALA*     2.8    37.9    +      -       +      +
    1521  ILE*     3.8    25.8    -      -       +      -
    1551  VAL*     3.7    22.4    -      -       +      -
    1561  ALA*     3.9    25.1    -      -       +      -
    1601  ALA*     3.9     9.9    -      -       +      -
    1611  PHE      3.8     8.9    +      -       -      +
    2201  VAL*     1.3    79.4    -      -       -      +
    2221  CYS*     1.3    67.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 222 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1161  TYR      3.7     0.5    -      -       -      +
    1171  PHE*     3.4     5.9    -      -       -      -
    1181  MET      2.7    35.1    +      -       -      +
    1321  LEU*     4.5     3.4    -      -       -      -
    1331  CYS*     2.0    53.2    -      -       +      -
    1391  THR      3.4     4.7    -      -       -      -
    1411  ALA*     4.2     1.1    -      -       -      -
    2201  VAL*     4.4     4.9    -      -       -      -
    2211  VAL*     1.3    76.7    -      -       -      +
    2231  GLU*     1.3    60.1    +      -       -      +
    2241  PHE*     3.6    23.9    -      -       +      -
    1362  LEU*     3.9    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 223 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1151  LYS*     4.0    31.5    +      -       +      +
    1161  TYR      3.4     4.0    -      -       -      -
    1171  PHE*     3.6    17.8    -      -       +      -
    1381  GLY*     3.3     6.1    -      -       -      -
    1391  THR*     2.7    53.4    +      -       +      +
    1411  ALA*     3.5     8.9    -      -       -      -
    1421  THR*     2.9    37.1    +      -       -      +
    1441  ARG*     5.2     5.2    +      -       -      -
    2221  CYS*     1.3    74.2    -      -       -      +
    2241  PHE*     1.3    70.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 224 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1151  LYS*     3.1     8.1    -      -       -      +
    1161  TYR*     2.7    42.2    +      -       +      +
    1181  MET*     3.4    33.9    -      -       +      -
    1331  CYS      4.0     3.4    -      -       -      -
    1361  LEU*     3.5    20.4    -      -       +      -
    1371  GLN      4.4     2.2    -      -       -      -
    1381  GLY*     3.4    31.0    -      -       -      -
    2221  CYS*     3.6    31.9    -      -       +      -
    2231  GLU*     1.3    74.3    -      -       -      +
    2251  SER*     1.3    66.2    +      -       -      +
    1182  MET*     3.2    44.0    -      -       +      -
    1362  LEU*     4.1    11.2    -      -       +      -
----------------------------------------------------------
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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