Contacts of the strand formed by residues 64 - 69 (chain A) in PDB entry 1F6A


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 GLY 64 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  HIS*     4.2     0.2    -      -       -      -
     42A  ASN*     3.1     9.4    -      -       -      -
     63A  SER*     1.3    77.4    -      -       -      +
     65A  GLU*     1.3    62.3    +      -       -      -
     66A  TYR*     3.5     7.4    -      -       -      -
     79A  VAL      3.5     1.6    -      -       -      +
     80A  TYR*     3.4     9.0    -      -       -      -
     81A  LEU      2.8    38.6    +      -       -      -
     82A  GLU*     6.0     0.2    -      -       -      +
      1E  NAG      3.8    11.2    -      -       -      -
      2E  NAG      5.8     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  PHE      3.2     4.5    -      -       -      +
     41A  HIS*     3.4     2.4    +      -       -      -
     42A  ASN*     2.7    55.0    +      -       -      +
     43A  GLY      5.8     0.2    -      -       -      +
     64A  GLY*     1.3    70.1    -      -       -      -
     66A  TYR*     1.3    63.2    +      -       -      +
     67A  LYS*     4.1    25.9    +      -       -      +
     78A  PRO*     3.3    27.5    -      -       +      +
     79A  VAL      3.9     0.2    -      -       -      -
     80A  TYR*     3.4    34.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  VAL*     5.2     3.0    -      -       +      +
     24A  LEU*     3.4    32.3    -      -       +      -
     39A  TRP*     5.3     4.7    -      +       +      -
     40A  PHE      3.2     8.5    -      -       -      -
     41A  HIS*     3.4    36.4    +      +       +      -
     53A  LEU*     4.2    21.3    -      -       +      -
     55A  ILE*     3.5    20.7    -      -       +      +
     62A  ASP*     2.8    33.1    +      -       -      +
     64A  GLY      3.5    15.3    -      -       -      -
     65A  GLU*     1.3    73.5    -      -       -      +
     67A  LYS*     1.3    65.1    +      -       -      +
     77A  GLU      4.4     0.3    -      -       -      +
     78A  PRO*     3.5     0.7    -      -       -      +
     79A  VAL*     3.0    45.8    +      -       +      +
     81A  LEU*     4.0    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  VAL*     5.7     1.3    -      -       -      -
     38A  LYS      3.7     0.2    -      -       -      +
     39A  TRP*     3.4     6.7    -      -       -      -
     40A  PHE*     2.6    58.4    +      -       +      +
     43A  GLY*     6.3     1.8    -      -       -      +
     65A  GLU*     4.1    22.0    +      -       +      +
     66A  TYR*     1.3    79.8    -      -       -      +
     68A  CYS*     1.3    61.3    +      -       -      +
     75A  GLU*     3.1    33.9    +      -       +      +
     76A  SER*     3.5    28.0    -      -       -      +
     78A  PRO*     3.6    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PRO*     3.8     1.6    -      -       -      +
      6A  LYS      4.4     1.3    -      -       -      -
      7A  VAL*     4.0    14.1    -      -       -      -
     26A  CYS*     2.0    50.5    -      -       -      -
     37A  THR*     4.0     6.5    -      -       +      -
     38A  LYS      3.1     9.4    -      -       -      +
     39A  TRP*     3.6    20.2    -      -       +      -
     40A  PHE*     5.3     0.9    -      -       -      -
     67A  LYS*     1.3    74.3    -      -       -      +
     69A  GLN*     1.3    62.7    +      -       -      +
     75A  GLU*     3.8     1.3    -      -       -      -
     76A  SER*     2.7    43.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PRO*     4.5     3.6    -      -       -      -
     37A  THR*     4.2     0.3    -      -       -      -
     38A  LYS*     2.9    51.5    +      -       +      +
     40A  PHE*     3.5    29.0    -      -       +      -
     68A  CYS*     1.3    77.8    -      -       -      +
     70A  HIS*     1.3    68.0    +      -       -      +
     72A  GLN      3.2    22.1    -      -       -      +
     73A  VAL*     3.3    15.9    -      -       -      +
     74A  ALA      3.9     2.7    -      -       -      +
     75A  GLU*     3.6    28.8    +      -       +      +
----------------------------------------------------------
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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