Contacts of the strand formed by residues 635 - 644 (chain C) in PDB entry 1KF9


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 ILE 635 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    633C  PRO      4.0     7.4    -      -       -      +
    634C  PRO*     1.3    79.7    -      -       -      +
    636C  ALA*     1.3    69.7    +      -       +      +
    637C  LEU*     3.1    12.1    -      -       -      +
    658C  GLU*     3.0    39.8    +      -       +      +
    659C  ALA      3.7    18.8    -      -       -      +
    661C  ARG*     3.3    44.6    -      -       +      +
   1115D  LYS*     6.1     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 636 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    635C  ILE*     1.3    79.5    -      -       +      +
    637C  LEU*     1.3    65.7    +      -       -      +
    638C  ASN*     3.6    10.1    +      -       -      +
    656C  ARG      3.7     6.5    -      -       -      +
    657C  TRP*     3.9     4.2    -      -       -      -
    658C  GLU*     3.2    32.1    -      -       +      +
   1599F  SER*     5.9     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 637 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634C  PRO*     4.3    10.5    -      -       +      +
    635C  ILE      3.1    21.1    -      -       -      +
    636C  ALA*     1.3    73.9    -      -       -      +
    638C  ASN*     1.3    67.9    +      -       -      +
    655C  VAL*     5.4     2.7    -      -       +      -
    656C  ARG      3.4     5.8    -      -       -      +
    657C  TRP*     3.3    18.6    -      -       +      -
    710C  VAL*     4.5    13.0    -      -       +      +
    712C  VAL*     3.9    26.2    -      -       +      +
    726C  SER*     3.2    30.5    -      -       -      +
    727C  GLU*     4.2     8.5    -      -       +      +
    729C  LEU*     4.0    22.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 638 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    636C  ALA      4.0     9.3    -      -       -      +
    637C  LEU*     1.3    78.6    -      -       -      +
    639C  TRP*     1.3    76.9    +      -       +      +
    640C  THR*     4.7     3.8    +      -       -      -
    655C  VAL      3.8     0.3    -      -       -      -
    656C  ARG*     2.8    40.7    +      -       -      +
    729C  LEU*     3.9    18.1    -      -       +      +
   1599F  SER*     5.5     7.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 639 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    638C  ASN*     1.3    83.9    +      -       -      +
    640C  THR*     1.3    80.2    +      -       -      +
    641C  LEU*     3.6    29.4    -      -       +      -
    653C  ILE*     3.8    32.1    -      -       +      -
    654C  GLN      3.3    11.0    -      -       -      +
    655C  VAL*     4.3     8.1    -      -       +      -
    729C  LEU*     3.7    23.5    -      -       +      +
    730C  TYR      3.8    13.3    +      -       -      -
    731C  VAL*     3.7    19.7    -      -       +      +
    732C  THR*     3.7    27.4    -      -       -      -
    733C  LEU*     4.0    10.5    -      -       +      -
    734C  PRO*     4.5     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 640 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    638C  ASN*     4.7     3.6    +      -       -      -
    639C  TRP*     1.3    84.4    +      -       -      +
    641C  LEU*     1.3    76.5    +      -       -      +
    642C  LEU*     5.2     3.1    -      -       +      -
    653C  ILE*     3.2     1.2    -      -       -      -
    654C  GLN*     2.7    47.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 641 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    639C  TRP*     3.6    24.5    -      -       +      -
    640C  THR*     1.3    88.6    -      -       -      +
    642C  LEU*     1.3    72.9    +      -       -      +
    643C  ASN*     3.6    21.3    -      -       -      +
    644C  VAL*     3.9    18.4    -      -       +      -
    651C  ALA*     4.2    12.3    -      -       +      -
    652C  ASP      3.5    11.4    -      -       -      +
    653C  ILE*     4.3     4.5    -      -       +      +
    733C  LEU*     4.9     0.4    -      -       +      -
    734C  PRO*     3.6    31.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 642 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350B  HIS*     3.8    17.3    -      -       +      +
    401B  SER*     4.5    11.9    -      -       -      +
    640C  THR*     5.0     2.5    -      -       +      +
    641C  LEU*     1.3    80.5    -      -       -      +
    643C  ASN*     1.3    78.5    +      -       -      +
    652C  ASP*     2.7    26.9    +      -       +      +
    653C  ILE      3.1    38.1    -      -       -      +
    654C  GLN*     3.8    17.7    -      -       +      +
    698C  PRO*     4.5     4.3    -      -       +      -
    700C  TYR*     4.0    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 643 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347B  THR*     4.9     1.4    -      -       -      +
    349B  ILE*     3.5    19.1    -      -       +      +
    350B  HIS*     2.7    42.0    +      -       -      -
    403B  LYS*     3.5    14.6    -      -       -      +
    641C  LEU*     3.6     9.4    -      -       -      +
    642C  LEU*     1.3    95.2    +      -       -      +
    644C  VAL*     1.3    66.7    +      -       -      +
    645C  SER      4.1     0.5    +      -       -      -
    651C  ALA*     3.9     0.5    -      -       -      -
    652C  ASP*     3.3    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 644 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349B  ILE*     4.0     8.4    -      -       -      +
    641C  LEU*     3.9    27.4    -      -       +      -
    643C  ASN*     1.3    77.7    -      -       -      +
    645C  SER*     1.3    74.1    +      -       -      +
    646C  LEU*     3.4     2.4    +      -       -      +
    648C  GLY*     4.0    15.3    -      -       -      +
    650C  HIS      3.1    24.7    -      -       -      +
    651C  ALA*     4.0     7.9    -      -       +      +
    704C  VAL*     4.8     9.9    -      -       +      -
    734C  PRO*     5.2     8.3    -      -       +      -
----------------------------------------------------------
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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