Contacts of the strand formed by residues 5 - 10 (chain F) in PDB entry 2RA2


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 ASN 5 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3F  GLY      4.3     6.2    +      -       -      -
      4F  PRO*     1.3    76.8    -      -       -      +
      6F  TYR*     1.3    63.2    +      -       -      +
     17F  VAL*     4.4     5.3    -      -       +      +
     18F  THR      3.1    20.3    -      -       -      +
     19F  ASP*     3.7    18.5    -      -       -      +
     53F  ALA*     3.4     6.8    -      -       -      +
     54F  LEU*     2.8    47.5    +      -       +      +
     55F  GLU      6.2     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 6 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  GLN*     4.4    10.8    -      -       -      -
      4F  PRO*     3.6    29.0    -      -       +      +
      5F  ASN*     1.3    79.6    -      -       -      +
      7F  VAL*     1.3    60.0    +      -       -      +
     16F  ILE      3.6     0.7    -      -       -      +
     17F  VAL*     3.2     4.5    -      -       -      +
     18F  THR*     2.7    41.7    +      -       +      +
     20F  GLY      3.7     1.6    -      -       -      -
     21F  LYS*     3.5    51.0    +      -       +      +
     22F  PRO*     4.2     9.0    -      -       +      -
     51F  MSE      4.2    20.0    -      -       +      -
     52F  VAL*     3.3     9.6    -      -       -      +
     53F  ALA*     3.6    31.1    -      -       +      +
     54F  LEU*     4.3     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 7 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  TYR*     1.3    74.9    -      -       -      +
      8F  MSE      1.3    68.6    +      -       -      +
      9F  HIS*     3.8    27.5    +      -       +      +
     15F  SER*     4.3    14.8    -      -       -      -
     16F  ILE      3.3    10.8    -      -       -      +
     17F  VAL*     4.4     9.2    -      -       +      +
     50F  GLU      4.0     0.3    -      -       -      +
     51F  MSE      3.3     4.6    -      -       -      -
     52F  VAL*     2.9    52.3    +      -       +      +
     54F  LEU*     4.0    22.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with MSE 8 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  VAL*     1.3    74.0    -      -       -      +
      9F  HIS*     1.3    62.1    +      -       -      +
     10F  THR*     3.8     4.5    +      -       +      +
     14F  ARG      3.6     1.2    -      -       -      +
     15F  SER*     3.4     3.8    -      -       -      -
     16F  ILE*     2.8    57.2    +      -       +      +
     18F  THR*     3.6    22.4    -      -       +      -
     22F  PRO*     4.1     9.2    -      -       -      -
     31F  ILE*     3.7    24.0    -      -       -      -
     33F  TYR*     3.6    33.0    -      -       +      -
     43F  ILE*     4.4     9.4    -      -       +      -
     48F  VAL*     4.2    14.8    -      -       +      -
     50F  GLU      3.5     4.7    -      -       -      -
     51F  MSE      3.7    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 9 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  VAL*     3.8    33.1    +      -       +      +
      8F  MSE      1.3    71.4    -      -       -      +
     10F  THR*     1.3    63.3    +      -       -      +
     14F  ARG      3.5     3.4    -      -       -      +
     15F  SER*     3.2    28.3    +      -       -      -
     48F  VAL*     3.8     1.4    -      -       -      -
     49F  LYS*     2.8    26.6    +      -       +      +
     50F  GLU*     2.8    51.1    +      -       +      +
     51F  MSE      5.1     0.6    +      -       -      -
     52F  VAL*     4.7     7.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 10 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8F  MSE      4.3     5.4    -      -       +      +
      9F  HIS*     1.3    78.9    -      -       -      +
     11F  ASN*     1.3    64.0    +      -       -      +
     12F  ASP*     2.5    29.7    +      -       -      +
     13F  GLY*     3.9     6.8    +      -       -      -
     14F  ARG*     3.0    30.0    +      -       +      +
     16F  ILE*     3.9    19.1    -      -       +      -
     43F  ILE*     3.8    23.3    -      -       +      -
     47F  ASP*     3.0    19.1    -      -       -      +
     48F  VAL*     4.3     3.4    -      -       +      +
     49F  LYS*     4.4     2.7    -      -       -      +
----------------------------------------------------------
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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