Contacts of the strand formed by residues 448 - 453 (chain q) in PDB entry 6FF7


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 448 (chain q).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442q  TYR*     4.3     6.3    -      -       -      -
    447q  MET*     1.3    75.3    -      -       -      +
    449q  ILE*     1.3    66.9    +      -       -      +
    492q  THR      4.2    10.1    -      -       -      +
    493q  VAL      3.1    20.2    -      -       -      +
    495q  ARG*     5.4     6.7    -      -       +      +
    514q  SER*     3.0    12.7    +      -       -      +
    515q  TYR*     3.2     6.2    -      -       +      -
    516q  SER*     3.0    25.3    +      -       -      -
    517q  VAL      3.9     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 449 (chain q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434q  PRO*     5.4    10.3    -      -       +      +
    436q  TYR*     6.3     2.0    -      -       +      -
    437q  LEU*     6.3     2.0    -      -       -      +
    442q  TYR*     4.7     6.0    -      -       +      +
    448q  LYS*     1.3    79.5    -      -       -      +
    450q  ALA*     1.3    64.5    +      -       -      +
    451q  CYS      4.1     0.2    +      -       -      -
    493q  VAL      3.0     7.1    +      -       -      +
    494q  LEU*     3.5     7.3    -      -       +      +
    495q  ARG*     2.9    26.2    +      -       -      +
    515q  TYR*     5.1     0.2    -      -       -      -
    517q  VAL*     3.2    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 450 (chain q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449q  ILE*     1.3    75.6    -      -       -      +
    451q  CYS*     1.3    58.3    +      -       -      +
    452q  THR*     4.2     1.3    -      -       -      -
    495q  ARG*     3.3    12.6    -      -       +      +
    497q  MET*     6.1     3.1    -      -       +      -
    502q  LEU*     5.7     9.6    -      -       +      -
    515q  TYR*     4.6     9.9    -      -       +      +
    517q  VAL      3.0     9.2    +      -       -      +
    518q  VAL*     3.5     9.1    -      -       +      -
    519q  MET*     2.7    33.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 451 (chain q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430q  THR*     5.6     3.8    -      -       -      +
    434q  PRO*     4.8    17.9    -      -       +      -
    449q  ILE      4.1     0.2    +      -       -      -
    450q  ALA*     1.3    75.0    -      -       -      +
    452q  THR*     1.3    62.5    +      -       -      +
    453q  GLN*     4.0     0.5    +      -       -      +
    495q  ARG      2.9     9.8    +      -       -      +
    496q  TYR*     3.2    10.8    -      -       +      +
    497q  MET*     2.9    25.6    +      -       -      +
    519q  MET*     3.3    13.9    -      -       +      +
    521q  ASP*     5.8     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 452 (chain q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450q  ALA*     4.2     2.4    -      -       -      -
    451q  CYS*     1.3    74.2    -      -       -      +
    453q  GLN*     1.3    61.1    +      -       -      +
    497q  MET*     3.1     7.9    -      -       -      -
    498q  THR      4.7     1.1    -      -       -      -
    499q  ASP*     4.2    22.7    -      -       -      -
    502q  LEU*     5.2     9.0    -      -       -      -
    519q  MET      2.8    15.2    +      -       -      -
    520q  VAL*     4.3    11.4    -      -       -      -
    521q  ASP*     3.2    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 453 (chain q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451q  CYS      5.3     0.7    -      -       -      +
    452q  THR*     1.3    76.2    -      -       -      +
    454q  PRO*     1.3    64.0    -      -       -      +
    455q  ARG      3.3    19.8    +      -       -      +
    458q  ALA*     4.2     9.4    -      -       +      -
    459q  ALA*     4.1    16.4    -      -       +      +
    496q  TYR*     6.3     0.4    -      -       +      -
    497q  MET      2.7    13.4    +      -       -      +
    498q  THR*     2.9    25.1    -      -       -      -
    499q  ASP*     2.9     6.7    +      -       -      -
    521q  ASP*     5.1     2.9    -      -       +      -
    522q  GLU*     5.4     2.9    -      -       +      -
----------------------------------------------------------
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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