Contacts of the strand formed by residues 45 - 49 (chain F) in PDB entry 2AAZ


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 THR 45 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167E  ARG*     3.3    30.0    +      -       -      +
     36F  VAL*     3.4     4.3    -      -       -      +
     37F  ARG*     2.8    41.4    +      -       -      +
     38F  PRO      5.2     0.2    +      -       -      -
     39F  ASP*     4.2     4.3    -      -       -      +
     44F  GLY*     1.3    80.7    -      -       -      +
     46F  VAL*     1.3    63.4    +      -       -      +
     47F  ALA*     4.3     4.9    -      -       -      +
    255F  ASP*     5.4     0.2    +      -       -      -
    257F  HIS*     3.8    22.7    -      -       +      +
    258F  VAL      3.4    11.4    -      -       -      -
    259F  TYR*     3.6    20.2    -      -       +      -
    260F  ARG*     3.6    12.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  ILE*     3.0    42.5    -      -       +      +
     31F  ILE*     4.5    10.8    -      -       -      +
     34F  GLY      3.4    23.3    -      -       -      +
     35F  GLU      3.2     6.5    -      -       -      +
     36F  VAL*     4.6     9.4    -      -       +      +
     45F  THR*     1.3    74.9    -      -       -      +
     47F  ALA*     1.3    60.7    +      -       -      +
    257F  HIS*     3.3     1.0    -      -       -      -
    258F  VAL*     2.9    41.8    +      -       +      +
    260F  ARG*     5.4     2.7    -      -       -      -
    263F  VAL*     4.9     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 47 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194E  PHE*     5.1     5.5    -      -       +      -
     30F  ILE*     4.1     2.0    -      -       -      -
     34F  GLY*     3.6     2.6    -      -       -      -
     35F  GLU*     2.8    40.1    +      -       -      +
     37F  ARG*     3.9    21.4    -      -       -      -
     45F  THR*     4.3     1.6    -      -       -      +
     46F  VAL*     1.3    77.0    -      -       -      +
     48F  LEU*     1.3    67.3    +      -       -      +
    255F  ASP*     3.7    13.5    -      -       -      +
    256F  ALA      3.2    13.2    -      -       -      +
    257F  HIS*     3.6    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194E  PHE*     5.0     3.4    -      -       -      -
     26F  LEU*     4.6     4.3    -      -       +      -
     29F  ARG*     3.6    52.5    -      -       +      +
     30F  ILE*     3.9    23.7    -      -       +      +
     33F  VAL*     4.0    12.1    -      -       +      +
     34F  GLY*     3.8    18.2    -      -       -      +
     35F  GLU*     6.0     0.2    -      -       +      -
     47F  ALA*     1.3    82.3    -      -       -      +
     49F  PHE*     1.3    62.6    +      -       -      +
     51F  PRO*     4.6     8.7    -      -       +      -
    255F  ASP*     4.0     0.3    -      -       -      -
    256F  ALA*     2.9    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55E  ARG*     3.9     8.8    +      -       -      -
    192E  GLN*     3.5    37.5    -      -       +      -
    194E  PHE*     3.4    58.4    -      +       +      -
    210E  SER*     3.9    22.4    -      -       -      -
    211E  CYS      4.2     2.0    -      -       -      -
    212E  LEU*     3.7    29.6    -      -       +      -
    248E  GLU*     5.5     1.0    -      -       -      +
    250E  ILE*     4.2     5.2    -      -       +      -
     48F  LEU*     1.3    75.2    -      -       -      +
     50F  ALA*     1.3    75.0    +      -       +      +
     51F  PRO*     3.4     1.6    -      -       -      +
    254F  GLY*     3.4    33.2    -      -       -      -
    255F  ASP      3.9     0.2    -      -       -      -
----------------------------------------------------------
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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