Contacts of the strand formed by residues 327 - 333 (chain F) in PDB entry 2AJQ


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 327 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267F  PRO*     4.0    16.4    -      -       +      -
    287F  PRO*     4.1    10.1    +      -       +      +
    288F  ARG      4.0    14.8    -      -       -      +
    289F  ILE*     3.7     6.4    -      -       -      +
    326F  TYR*     1.3    73.4    -      -       -      +
    328F  PRO*     1.3    77.3    -      -       +      +
    329F  VAL*     3.3    10.3    -      -       +      +
     31I  TRP*     4.7     5.4    -      -       +      -
     32I  CYS*     3.1    31.5    -      -       -      +
     33I  GLY      4.3     1.7    +      -       -      -
     34I  PRO*     3.4    11.8    -      -       -      +
     75I  ILE*     2.8    30.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 328 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267F  PRO*     3.2     5.0    -      -       -      +
    268F  LYS      3.1    38.3    +      -       -      +
    269F  GLY*     4.4     0.7    -      -       -      -
    270F  GLY*     3.8    24.0    -      -       -      +
    288F  ARG      4.2     1.6    -      -       -      +
    290F  LYS*     3.7    34.8    -      -       +      +
    326F  TYR*     3.3    17.2    -      -       +      +
    327F  THR*     1.3    87.7    -      -       +      +
    329F  VAL*     1.3    63.7    +      -       -      +
     73I  ARG*     3.9    14.4    -      -       -      +
     74I  GLY*     4.2     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 329 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265F  TYR*     4.0    22.7    -      -       +      -
    266F  GLN      3.3    12.8    -      -       -      +
    268F  LYS*     4.4     1.5    +      -       -      +
    327F  THR*     3.3    15.0    -      -       +      +
    328F  PRO*     1.3    82.3    -      -       -      +
    330F  GLU*     1.3    62.6    +      -       -      +
     31I  TRP*     4.1    17.7    -      -       +      -
     72I  ILE*     4.2     8.8    -      -       +      +
     73I  ARG*     3.2    33.0    +      -       -      +
     74I  GLY*     3.3    25.8    -      -       -      +
     75I  ILE*     4.0    17.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 330 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265F  TYR*     3.3     7.6    -      -       -      -
    266F  GLN*     3.0    58.8    +      -       +      +
    267F  PRO      4.5     0.7    -      -       -      +
    268F  LYS*     3.0    53.8    +      -       +      +
    329F  VAL*     1.3    75.1    -      -       -      +
    331F  HIS*     1.3    59.9    +      -       -      +
    332F  VAL*     3.4    26.4    +      -       +      +
     73I  ARG*     3.4    19.7    -      -       -      +
    964Z    G      5.2     2.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 331 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263F  SER*     3.1    31.7    +      -       -      -
    264F  TRP*     3.0    32.2    +      -       -      -
    265F  TYR*     3.7    30.3    -      +       +      +
    330F  GLU*     1.3    76.2    -      -       -      +
    332F  VAL*     1.3    64.3    +      -       -      +
    333F  VAL*     5.8     3.2    -      -       +      +
     64I  PRO*     4.9     2.4    +      -       -      +
     68I  PRO*     3.8    30.8    -      -       +      +
     72I  ILE      5.8     0.8    +      -       -      +
     73I  ARG*     6.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 332 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263F  SER*     2.9    26.4    -      -       -      -
    264F  TRP*     2.9    51.7    +      -       +      +
    266F  GLN*     3.9    14.1    -      -       +      +
    330F  GLU*     3.4    40.1    +      -       +      +
    331F  HIS*     1.3    75.4    -      -       -      +
    333F  VAL*     1.3    61.1    +      -       -      +
    334F  PHE      3.9     0.2    +      -       -      -
    341F  HIS*     4.0    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 333 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258F  THR*     5.5     8.3    -      -       +      -
    262F  GLY      4.2     0.9    -      -       -      +
    263F  SER*     3.7    15.7    -      -       -      -
    264F  TRP*     4.7     0.7    -      -       -      -
    331F  HIS*     5.8     2.9    -      -       +      +
    332F  VAL*     1.3    76.9    -      -       -      +
    334F  PHE*     1.3    72.0    +      -       -      +
    335F  ASN*     3.2     5.4    +      -       +      +
    341F  HIS*     3.8    10.4    -      -       -      -
----------------------------------------------------------
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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