Contacts of the strand formed by residues 329 - 337 (chain A) in PDB entry 4X7C


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 329 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328A  GLY*     1.3    72.8    -      -       -      +
    330A  ILE*     1.3    62.9    +      -       -      +
    350A  THR*     4.0     9.6    -      -       +      -
    351A  VAL      3.4     3.8    -      -       -      -
    352A  TYR*     3.4    36.1    -      -       +      -
    388A  VAL*     3.2     5.8    -      -       -      +
    389A  ILE*     2.9    54.7    +      -       +      +
    391A  ASP*     2.9    38.4    +      -       -      +
    392A  GLY*     4.8     1.4    -      -       -      -
    393A  SER*     5.1     1.0    +      -       -      +
    394A  THR*     4.1     6.5    -      -       -      +
    399A  GLU*     2.4    44.2    +      -       -      +
    400A  PRO*     5.0     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  PHE*     4.1     5.8    -      -       +      -
    284A  CYS*     4.3     7.4    -      -       +      +
    324A  PRO*     3.6    38.6    -      -       +      -
    326A  PHE*     3.9    28.5    -      -       +      -
    328A  GLY      4.8     0.4    -      -       -      +
    329A  LYS*     1.3    76.0    -      -       -      +
    331A  GLN*     1.3    62.3    +      -       -      +
    350A  THR*     3.3     3.3    -      -       -      -
    351A  VAL*     2.9    39.8    +      -       +      +
    353A  THR*     4.0    12.3    -      -       +      -
    383A  PHE*     3.6    24.7    -      -       +      -
    385A  PRO*     3.9    17.3    -      -       +      -
    387A  GLY      3.4    10.3    -      -       -      +
    388A  VAL*     4.3     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  LYS      3.9     1.4    +      -       -      -
    330A  ILE*     1.3    73.2    -      -       -      +
    332A  GLY*     1.3    62.7    +      -       -      +
    348A  LYS*     3.4    41.7    +      -       +      +
    349A  ALA      3.3    11.7    -      -       -      +
    350A  THR*     3.2    19.4    +      -       +      +
    383A  PHE*     3.9     2.5    -      -       -      -
    385A  PRO*     3.8     1.0    -      -       -      +
    386A  VAL*     2.8    23.7    +      -       -      +
    387A  GLY      2.8    18.7    +      -       -      +
    389A  ILE*     3.9    27.7    -      -       +      +
    441A  CYS*     3.4    30.8    +      -       -      +
    442A  SER*     5.5     2.2    -      -       -      -
    333B  LEU*     4.1     6.7    -      -       +      +
    346B  GLY      5.0     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  GLN*     1.3    76.8    -      -       -      +
    333A  LEU*     1.3    65.1    +      -       -      +
    348A  LYS*     3.4     9.4    -      -       -      +
    349A  ALA      2.8    30.6    +      -       -      -
    383A  PHE*     3.6     8.8    -      -       -      -
    384A  THR      3.1    15.5    -      -       -      -
    386A  VAL*     3.9    11.0    -      -       -      -
    333B  LEU*     4.7     2.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  GLY*     1.3    77.8    -      -       -      +
    334A  LEU*     1.3    59.9    +      -       -      +
    335A  THR*     3.9     6.6    +      -       +      +
    346A  GLY      5.9     0.7    -      -       -      -
    347A  HIS*     3.5     4.9    -      -       -      +
    348A  LYS*     3.5    29.8    -      -       -      +
    382A  LYS      3.5     2.3    -      -       -      +
    383A  PHE*     3.5     3.3    -      -       -      -
    384A  THR*     2.9    32.4    +      -       -      -
    386A  VAL*     4.8     0.8    -      -       -      +
    331B  GLN*     4.6     8.5    -      -       +      +
    332B  GLY*     4.1    19.5    -      -       -      +
    333B  LEU*     3.9    21.3    -      -       +      -
    348B  LYS*     3.9    18.6    -      -       +      -
    386B  VAL*     3.8    41.1    -      -       +      -
    441B  CYS*     4.7     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  VAL*     5.1     2.9    -      -       +      -
    299A  TYR*     5.0     8.3    -      -       +      -
    301A  MET*     3.7    30.3    -      -       +      -
    332A  GLY      4.2     0.2    -      -       -      -
    333A  LEU*     1.3    72.5    -      -       -      +
    335A  THR*     1.3    59.9    +      -       -      +
    346A  GLY*     3.2     2.8    -      -       -      -
    347A  HIS      2.8    36.7    +      -       -      +
    349A  ALA*     3.8    18.6    -      -       +      +
    367A  PHE*     4.1    24.9    -      -       +      -
    369A  THR*     4.3     6.5    -      -       +      -
    375A  PHE*     3.4    27.6    -      -       +      -
    381A  THR*     4.0    12.6    -      -       +      -
    382A  LYS      3.2    13.5    -      -       -      +
    383A  PHE*     3.9    14.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333A  LEU*     4.3     7.6    -      -       +      +
    334A  LEU*     1.3    80.1    -      -       -      +
    336A  GLN*     1.3    63.0    +      -       -      +
    345A  ARG      3.3     4.3    -      -       -      -
    346A  GLY*     4.1     7.2    -      -       -      -
    375A  PHE*     4.4     0.2    -      -       -      -
    380A  ASN      4.1     0.2    -      -       -      +
    381A  THR*     3.2     5.2    -      -       -      +
    382A  LYS*     2.7    50.1    +      -       -      +
    384A  THR*     5.1     0.7    +      -       -      -
    386B  VAL*     4.0    19.7    -      -       +      +
    439B  PRO*     3.7    18.6    -      -       +      +
    440B  GLY      3.7    11.4    -      -       -      -
    441B  CYS*     3.8    27.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 336 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  VAL*     3.7     8.9    -      -       -      +
    335A  THR*     1.3    78.1    -      -       -      +
    337A  THR*     1.3    65.3    +      -       -      +
    344A  THR*     3.2     6.6    -      -       -      -
    345A  ARG*     2.9    57.7    +      -       +      +
    375A  PHE*     3.7    18.7    -      -       +      -
    376A  GLU*     2.7    48.4    +      -       -      +
    379A  GLN*     3.9    16.5    +      -       +      -
    380A  ASN      3.3    14.1    -      -       -      +
    381A  THR*     2.9    21.4    +      -       -      +
    440B  GLY      4.0     1.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 337 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336A  GLN*     1.3    80.7    -      -       -      +
    338A  THR*     1.3    74.8    +      -       -      +
    339A  LYS*     3.6     3.3    +      -       -      +
    342A  GLY*     4.1     6.1    -      -       -      -
    343A  SER      3.3     8.7    -      -       -      +
    344A  THR*     3.5    18.8    -      -       +      +
    379A  GLN*     3.5    19.6    -      -       -      +
    380A  ASN*     3.2    18.1    +      -       -      +
    439B  PRO*     5.5     1.0    -      -       -      +
    440B  GLY      4.5     4.3    +      -       -      -
    447B  MET*     3.8    25.1    -      -       +      -
----------------------------------------------------------
 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