Contacts of the strand formed by residues 323 - 332 (chain A) in PDB entry 1ATT


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 ARG 323 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  THR*     4.3     2.4    -      -       -      +
    250A  VAL*     5.4     1.2    -      -       -      +
    251A  LEU*     3.0    53.2    +      -       +      +
    253A  MET*     3.7    18.4    -      -       +      -
    321A  MET      3.7     0.4    +      -       -      -
    322A  PRO*     1.3    77.0    -      -       -      +
    324A  PHE*     1.3    58.6    +      -       -      +
    375A  GLU*     5.5     6.3    -      -       -      +
    376A  VAL      3.5    11.3    +      -       -      +
    377A  ASN*     3.4    19.9    -      -       -      +
    378A  GLU*     2.9    47.5    +      -       -      +
    430A  PRO      4.8     2.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282A  MET*     5.7     2.0    -      -       -      -
    321A  MET*     5.0     2.0    -      -       +      -
    322A  PRO*     3.2    37.9    -      -       +      -
    323A  ARG*     1.3    74.2    -      -       -      +
    325A  ARG*     1.3    65.0    +      -       -      +
    326A  ILE*     3.7    16.6    -      -       +      -
    374A  LEU*     3.7    28.0    -      -       +      -
    375A  GLU*     3.5     4.6    -      -       -      +
    376A  VAL*     3.2    56.0    +      -       +      +
    409A  PHE*     4.1    24.2    -      +       -      -
    411A  VAL*     5.1     3.4    -      -       +      -
    427A  VAL*     3.8    23.6    -      -       +      -
    430A  PRO*     3.5    29.8    -      -       +      +
    432A  VAL      5.1     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  ARG*     5.2     5.1    -      -       -      +
    324A  PHE*     1.3    77.0    -      -       -      +
    326A  ILE*     1.3    65.0    +      -       -      +
    327A  GLU*     4.9     4.3    -      -       -      -
    373A  PHE*     3.7    36.4    -      -       +      -
    374A  LEU      3.2    12.6    -      -       -      +
    375A  GLU*     3.4    27.7    +      -       +      +
    430A  PRO      5.0     0.2    -      -       -      +
    432A  VAL*     2.9    31.7    +      -       -      +
    433A  ASP*     2.9    59.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  ASN*     4.1    25.1    -      -       +      +
     77A  ILE      3.9    21.8    -      -       -      +
     78A  PHE*     4.0    20.4    -      -       +      -
    324A  PHE*     3.7     8.5    -      -       +      -
    325A  ARG*     1.3    77.1    -      -       -      +
    327A  GLU*     1.3    61.6    +      -       -      +
    328A  ASP*     6.0     0.7    -      -       +      -
    373A  PHE*     3.5     3.3    -      -       -      -
    374A  LEU*     2.9    51.3    +      -       +      +
    411A  VAL*     6.1     0.4    -      -       +      -
    425A  GLY*     5.4     0.4    -      -       -      -
    426A  ARG      4.1    11.2    -      -       -      +
    427A  VAL*     3.6    35.7    -      -       +      +
    429A  ASN      4.4     3.8    -      -       -      +
    430A  PRO*     5.2     0.2    -      -       +      -
    432A  VAL*     5.0     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  ASN*     5.9     1.9    -      -       -      +
     78A  PHE*     5.8     0.4    -      -       -      -
    198A  ARG      4.2    12.4    -      -       -      +
    199A  ILE*     5.5     0.7    -      -       -      +
    200A  THR*     5.1     3.5    -      -       -      +
    325A  ARG*     4.9     4.3    -      -       -      -
    326A  ILE*     1.3    76.4    -      -       -      +
    328A  ASP*     1.3    62.8    +      -       -      +
    371A  LYS*     3.2    41.0    +      -       -      +
    372A  ALA      3.4    12.6    -      -       -      +
    373A  PHE*     3.7    23.3    -      -       +      +
    432A  VAL*     5.5     3.2    -      -       +      +
    433A  ASP      4.7    12.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     3.2    28.8    +      -       -      -
     76A  ASN*     3.5    12.0    -      -       +      +
     77A  ILE*     4.5     0.8    -      -       -      +
     78A  PHE*     3.6    29.7    +      -       +      +
    326A  ILE*     6.0     1.1    -      -       +      -
    327A  GLU*     1.3    77.4    -      -       -      +
    329A  SER*     1.3    67.0    +      -       -      +
    330A  PHE*     3.0    35.9    -      -       -      -
    371A  LYS*     3.1     3.4    -      -       -      +
    372A  ALA*     2.7    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     5.1     2.9    +      -       -      -
    202A  VAL*     5.8     4.5    -      -       -      -
    328A  ASP*     1.3    81.5    +      -       -      +
    330A  PHE*     1.3    70.1    +      -       -      +
    369A  PHE*     6.6     0.2    -      -       -      -
    370A  HIS      3.1    14.6    -      -       -      -
    371A  LYS*     3.4    31.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  PHE*     3.7    24.9    -      +       -      -
     67A  LEU*     3.4    38.6    -      -       +      -
     71A  LYS*     5.0     6.1    -      -       -      -
     78A  PHE      4.0     7.6    -      -       -      -
     79A  LEU*     3.6    20.0    -      -       +      -
     84A  ILE*     4.3     2.0    -      -       +      -
    328A  ASP*     3.0    28.5    -      -       -      -
    329A  SER*     1.3    75.6    -      -       -      +
    331A  SER*     1.3    72.9    +      -       -      +
    332A  VAL*     4.0     2.0    -      -       +      -
    334A  GLU*     4.9     4.5    -      -       -      +
    335A  GLN*     4.4     4.3    -      -       -      +
    369A  PHE*     3.9    12.1    -      -       -      +
    370A  HIS*     3.1    46.3    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  PHE*     1.3    77.9    -      -       -      +
    332A  VAL*     1.3    57.3    +      -       -      +
    333A  LYS*     3.1    15.2    +      -       -      +
    334A  GLU*     3.5    24.8    +      -       -      +
    335A  GLN*     2.7    30.6    +      -       -      -
    367A  ASP*     3.0    26.6    +      -       -      -
    368A  ALA      3.6     5.2    +      -       -      -
    369A  PHE*     4.8     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  PHE*     3.5    33.7    -      -       +      -
     84A  ILE*     3.9    23.6    -      -       +      -
     88A  PHE*     3.6    20.0    -      -       +      -
    330A  PHE*     4.0     5.5    -      -       +      -
    331A  SER*     1.3    73.7    -      -       -      +
    333A  LYS*     1.3    62.1    +      -       -      +
    334A  GLU      3.3     0.4    +      -       -      -
    335A  GLN*     3.5     4.4    +      -       -      +
    336A  LEU*     3.0    37.0    +      -       +      +
    368A  ALA*     2.9    41.1    +      -       +      +
    369A  PHE*     4.8     1.7    -      -       -      +
    370A  HIS*     5.1     5.4    -      -       +      -
    387A  THR*     5.6     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page


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