Contacts of the strand formed by residues 85 - 93 (chain A) in PDB entry 2FIU


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 ALA 85 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     3.6    21.5    -      -       +      -
     11A  ASP      3.3    14.8    -      -       -      +
     12A  VAL*     4.0     6.1    -      -       -      -
     13A  ARG*     3.7     6.2    +      -       -      +
     18A  TYR*     4.2    12.6    -      -       +      -
     81A  ARG*     2.9    19.5    +      -       +      +
     82A  GLN*     3.9    13.0    -      -       -      +
     83A  GLU      3.7     1.4    -      -       -      -
     84A  VAL*     1.3    81.4    -      -       -      +
     86A  ASP*     1.3    67.1    +      -       -      +
     87A  ALA*     4.1     2.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     3.4     2.8    -      -       -      +
     11A  ASP*     2.9    37.2    +      -       +      +
     13A  ARG*     3.0    25.5    +      -       -      +
     51A  ARG*     3.8    29.0    +      -       -      +
     85A  ALA*     1.3    74.6    -      -       -      +
     87A  ALA*     1.3    62.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  GLN      3.1    11.7    -      -       -      +
     10A  VAL*     4.1    19.1    -      -       +      -
     51A  ARG*     4.4     2.1    -      -       -      +
     81A  ARG*     4.2    24.5    -      -       +      +
     85A  ALA      4.1     2.4    +      -       -      +
     86A  ASP*     1.3    75.8    -      -       -      +
     88A  GLU*     1.3    72.1    +      -       -      +
     89A  MSE      4.2     7.6    +      -       +      -
     47B  GLU*     4.2    15.8    -      -       -      +
     48B  GLY*     4.9     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  ILE      3.9     0.9    -      -       -      +
      8A  ALA*     3.5     0.7    -      -       -      -
      9A  GLN*     2.8    53.1    +      -       -      +
     51A  ARG*     2.7    49.5    +      -       -      +
     87A  ALA*     1.3    78.6    -      -       -      +
     89A  MSE      1.3    65.5    +      -       -      +
     47B  GLU      3.4     9.0    -      -       -      +
     48B  GLY*     4.5    11.1    -      -       -      -
     49B  THR      4.7    11.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  TRP*     3.3    41.5    -      -       +      +
      7A  ILE      3.3     5.6    -      -       -      +
      8A  ALA*     3.6    19.3    -      -       +      -
     10A  VAL*     6.0     0.2    -      -       -      -
     21A  TYR*     5.0     1.1    -      -       -      +
     69A  TYR*     3.9    15.3    -      -       +      -
     74A  TYR*     3.3    10.5    -      -       -      +
     81A  ARG*     3.2    37.9    -      -       -      +
     87A  ALA*     4.5     7.6    -      -       +      -
     88A  GLU*     1.3    82.5    -      -       -      +
     90A  MSE      1.3    63.7    +      -       -      +
     45B  GLU*     4.0     0.7    -      -       -      -
     46B  LEU*     3.0    31.4    +      -       +      -
     47B  GLU*     2.8    25.6    +      -       +      +
     48B  GLY      4.9     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  TRP*     3.4     5.2    -      -       -      +
      7A  ILE*     2.8    60.9    +      -       +      +
      9A  GLN*     4.1     9.6    -      -       -      +
     89A  MSE      1.3    76.8    -      -       -      +
     91A  ILE*     1.3    62.9    +      -       -      +
     92A  VAL*     4.0     8.5    -      -       +      -
      7B  ILE*     5.4     1.3    -      -       +      -
      9B  GLN*     3.8    24.7    -      -       +      +
     43B  VAL*     3.9    12.1    -      -       +      -
     44B  THR      3.2    14.1    -      -       -      +
     45B  GLU*     4.4     3.6    -      -       -      -
     46B  LEU*     4.1     5.1    -      -       -      +
     50B  ALA*     3.9    22.0    -      -       +      -
     54B  ASN*     3.4    35.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  GLY*     4.2     0.4    -      -       -      -
      5A  TYR      3.2    18.6    -      -       -      +
      6A  TRP*     4.3     7.4    -      -       +      -
     62A  VAL*     4.1    26.9    -      -       +      -
     65A  ALA*     3.6    24.5    -      -       +      +
     66A  ILE*     3.6    44.0    -      -       +      +
     90A  MSE      1.3    77.9    -      -       -      +
     92A  VAL*     1.3    62.5    +      -       -      +
     42B  SER      3.6     1.2    -      -       -      +
     43B  VAL*     3.3     4.0    -      -       -      +
     44B  THR*     2.7    45.3    +      -       -      -
     46B  LEU*     3.8    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  GLY      3.8     0.2    -      -       -      -
      5A  TYR*     2.8    39.4    +      -       +      +
      7A  ILE*     4.1    17.5    -      -       +      -
     90A  MSE      4.0    17.9    -      -       +      -
     91A  ILE*     1.3    79.1    -      -       -      +
     93A  GLU*     1.3    67.8    +      -       -      +
     94A  GLY      3.5     0.2    +      -       -      -
     38B  ALA*     3.8    24.5    -      -       +      -
     41B  GLY      4.0    17.9    -      -       -      +
     42B  SER      3.5     2.2    -      -       -      -
     43B  VAL*     4.4     3.1    -      -       +      -
     54B  ASN*     3.7    38.1    -      -       +      +
     56B  VAL*     5.4     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MSE      5.0     7.4    -      -       -      +
      2A  ALA*     3.6    27.5    -      -       +      +
      3A  LYS      3.9     0.4    -      -       -      +
     62A  VAL*     3.6    32.5    +      -       +      +
     92A  VAL*     1.3    73.2    -      -       -      +
     94A  GLY*     1.3    70.2    +      -       -      +
     38B  ALA*     3.6    12.5    -      -       -      +
     39B  ARG      4.9     0.2    +      -       -      -
     41B  GLY*     3.8    15.0    -      -       -      -
     42B  SER*     2.8    39.3    +      -       -      +
----------------------------------------------------------
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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