Contacts of the strand formed by residues 323 - 330 (chain I) in PDB entry 3STJ


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 LYS 323 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319I  LEU*     3.5     4.1    -      -       -      -
    320I  ARG*     2.9    32.3    +      -       +      +
    321I  ASN*     3.9    19.3    -      -       +      +
    322I  GLY*     1.3    83.4    +      -       -      +
    324I  PRO*     1.4    74.3    -      -       +      +
    325I  LEU*     3.8     7.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 324 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318I  LEU      3.6     8.7    -      -       -      +
    319I  LEU*     3.9    13.4    -      -       +      -
    322I  GLY      4.1     4.5    -      -       -      +
    323I  LYS*     1.4    90.5    -      -       +      +
    325I  LEU*     1.3    70.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 325 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317I  GLY*     3.8     2.1    -      -       -      -
    318I  LEU*     2.9    49.3    +      -       +      +
    320I  ARG*     3.7    50.0    -      -       +      +
    323I  LYS*     4.2     8.7    -      -       +      +
    324I  PRO*     1.3    81.9    -      -       -      +
    326I  GLU*     1.3    64.1    +      -       -      +
    327I  VAL*     4.8     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 326 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289I  SER*     5.2     0.9    -      -       -      -
    292I  GLY*     4.5    12.1    +      -       -      -
    315I  LYS*     3.4    45.1    -      -       -      +
    316I  LEU      3.4     3.8    -      -       -      +
    317I  GLY*     3.9    18.9    +      -       -      -
    325I  LEU*     1.3    74.2    -      -       -      +
    327I  VAL*     1.3    65.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 327 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279I  ALA*     3.4    41.5    -      -       +      +
    280I  GLY      5.3     1.6    -      -       -      +
    281I  VAL*     4.0    11.2    -      -       +      -
    314I  VAL      3.6     0.9    -      -       -      +
    315I  LYS*     3.4     3.7    -      -       -      -
    316I  LEU*     2.7    44.2    +      -       +      +
    318I  LEU*     4.2    21.8    -      -       +      -
    320I  ARG*     5.3     6.7    -      -       -      +
    325I  LEU*     4.8     9.9    -      -       +      -
    326I  GLU*     1.3    81.5    -      -       -      +
    328I  GLU*     1.3    60.8    +      -       -      +
    329I  VAL*     3.8    10.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 328 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279I  ALA*     3.3    17.3    -      -       -      +
    313I  LYS*     3.6    45.7    +      -       +      +
    314I  VAL      3.3    10.8    -      -       -      +
    315I  LYS*     3.5    32.7    -      -       +      +
    326I  GLU      4.4     0.2    -      -       -      -
    327I  VAL*     1.3    71.8    -      -       -      +
    329I  VAL*     1.3    61.4    +      -       -      +
    330I  THR*     4.4     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 329 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242I  LEU*     3.8    26.0    -      -       +      +
    275I  GLY*     3.5    26.0    -      -       -      -
    276I  SER*     3.5     4.7    -      -       -      +
    279I  ALA*     3.8    17.0    -      -       +      -
    281I  VAL*     4.2     6.1    -      -       +      -
    312I  THR      3.6     1.0    -      -       -      +
    313I  LYS*     3.3     4.0    -      -       -      -
    314I  VAL*     2.8    38.7    +      -       +      +
    316I  LEU*     3.8    27.6    -      -       +      -
    327I  VAL*     3.8    10.1    -      -       +      +
    328I  GLU*     1.3    76.6    -      -       -      +
    330I  THR*     1.3    71.7    +      -       -      +
    331I  LEU*     4.8     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 330 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241I  LEU      4.8     0.3    -      -       -      +
    242I  LEU      5.4     0.2    -      -       -      +
    275I  GLY*     3.4    27.0    +      -       -      -
    311I  GLY*     3.5    31.0    -      -       -      +
    312I  THR      3.6     3.1    -      -       -      -
    313I  LYS*     3.4    29.7    -      -       +      +
    328I  GLU      4.4     0.6    +      -       -      -
    329I  VAL*     1.3    74.0    -      -       -      +
    331I  LEU*     1.3    65.8    +      -       -      +
    332I  ASP*     3.7     2.8    +      -       -      +
----------------------------------------------------------
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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