Contacts of the strand formed by residues 81 - 86 (chain K) in PDB entry 4FAO


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 81 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27G  ILE*     3.9    29.2    -      -       +      +
     30G  LYS*     6.1     0.7    -      -       -      -
     85G  LEU*     5.1     4.3    -      -       +      -
     87G  LYS*     5.8     2.9    -      -       -      -
     93G  PRO*     4.5    22.0    -      -       +      -
     44K  SER*     4.2    14.6    -      -       -      +
     45K  TRP*     4.0     9.4    -      -       -      +
     46K  ARG*     4.8    16.8    -      -       +      +
     55K  VAL*     5.5     4.5    -      -       +      -
     76K  GLU*     5.9     0.9    -      -       -      +
     79K  PRO*     3.5    12.2    -      -       -      +
     80K  GLN*     1.3    98.4    +      -       +      +
     82K  TYR*     1.3    77.1    +      -       -      +
     83K  PHE*     3.6     5.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 82 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44K  SER*     3.0    28.1    -      -       -      -
     45K  TRP*     2.9    58.6    +      +       +      +
     47K  ASN*     3.4    49.5    +      -       +      +
     74K  ALA*     4.8     2.2    -      -       +      -
     77K  GLU      5.2     0.3    +      -       -      -
     78K  ASN*     3.4    17.5    +      -       -      -
     79K  PRO*     3.0    42.5    -      -       +      +
     80K  GLN      4.1     2.7    -      -       -      -
     81K  VAL*     1.3    73.7    -      -       -      +
     83K  PHE*     1.3    60.1    +      -       -      +
     97K  HIS*     3.6    42.5    +      +       +      -
----------------------------------------------------------
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Residues in contact with PHE 83 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27G  ILE*     5.5     3.6    -      -       +      +
     28G  ALA*     3.6    27.6    -      -       +      -
     29G  PRO*     5.6     2.9    -      -       +      -
     85G  LEU*     4.1    15.9    -      -       +      -
     42K  TYR*     3.8    30.5    -      +       +      -
     43K  ALA      3.5     7.9    -      -       -      -
     44K  SER*     4.4     1.6    -      -       -      -
     45K  TRP*     4.4     1.3    -      -       -      -
     60K  TRP*     3.7    43.3    -      +       -      -
     63K  ASP*     5.6     0.9    -      -       -      -
     74K  ALA*     3.1    23.8    -      -       -      +
     75K  THR      4.5     1.4    +      -       -      -
     76K  GLU*     5.8     7.5    -      -       +      +
     81K  VAL*     3.6     6.8    +      -       +      +
     82K  TYR*     1.3    76.9    -      -       -      +
     84K  CYS*     1.3    86.2    +      -       -      +
     85K  CYS*     3.8    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 84 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42K  TYR*     3.1     5.2    -      -       -      +
     43K  ALA*     2.9    34.5    +      -       -      +
     45K  TRP*     3.8    20.9    -      -       +      -
     72K  CYS*     2.1    54.5    -      -       -      -
     73K  VAL      3.4    28.3    -      -       -      +
     74K  ALA*     3.6     2.0    -      -       -      +
     83K  PHE*     1.3    85.8    -      -       -      +
     85K  CYS*     1.3    60.7    +      -       -      +
     95K  PHE*     4.0     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 85 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40K  HIS*     4.9     0.2    -      -       +      -
     41K  CYS      3.0    14.6    -      -       -      +
     60K  TRP*     4.4     5.2    -      -       +      -
     63K  ASP*     4.4     5.4    -      -       -      -
     65K  ASN*     4.3     8.3    -      -       -      -
     66K  CYS*     2.0    48.0    -      -       -      -
     69K  ARG*     3.5    21.1    -      -       -      -
     71K  GLU      4.2     1.6    -      -       -      +
     72K  CYS*     4.0     4.3    -      -       -      -
     73K  VAL      4.4     2.2    +      -       -      +
     83K  PHE*     3.9    22.4    -      -       +      -
     84K  CYS*     1.3    76.6    -      -       -      +
     86K  CYS*     1.3    64.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 86 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40K  HIS*     3.2    12.6    -      -       -      +
     41K  CYS*     2.9    38.1    +      -       -      -
     66K  CYS*     3.9     6.9    -      -       -      +
     69K  ARG*     3.5    15.5    -      -       -      +
     71K  GLU      3.8    13.7    -      -       -      +
     72K  CYS*     3.9     9.0    -      -       -      -
     85K  CYS*     1.3    78.7    -      -       -      +
     87K  GLU*     1.3    60.5    +      -       -      +
     91K  CYS*     2.0    59.9    -      -       +      -
     92K  ASN      3.9     1.8    -      -       -      -
----------------------------------------------------------
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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