Contacts of the strand formed by residues 343 - 348 (chain A) in PDB entry 4WXS


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 343 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  ARG*     4.4    14.4    +      -       -      +
    337A  GLN*     3.3     5.0    -      -       -      -
    338A  GLY      2.8    29.8    +      -       -      -
    341A  SER*     3.2    18.7    +      -       -      -
    342A  ARG*     1.3    76.5    -      -       -      +
    344A  VAL*     1.3    73.3    +      -       -      +
    345A  ILE*     3.9    14.1    +      -       +      -
    357A  GLU*     4.1     8.7    -      -       +      -
    358A  LYS      3.6    19.5    -      -       -      +
    359A  GLU*     2.8    25.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 344 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335A  TYR*     4.7     4.3    -      -       +      -
    336A  PHE      3.4    10.8    -      -       -      +
    337A  GLN*     5.1     2.7    -      -       +      -
    342A  ARG      3.8     0.6    +      -       -      +
    343A  THR*     1.3    74.5    -      -       -      +
    345A  ILE*     1.3    66.8    +      -       -      +
    357A  GLU*     3.4     1.6    -      -       -      -
    358A  LYS      2.9    35.3    +      -       -      +
    360A  ILE*     3.6    32.1    -      -       +      -
    379A  ILE*     4.4    17.5    -      -       +      -
    381A  LEU*     4.3    30.1    -      -       +      -
    406A  LEU*     5.0     1.8    -      -       +      -
    411A  LEU*     3.3    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 345 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  ARG*     4.0    20.2    -      -       +      +
    334A  LEU      3.3     2.4    -      -       -      +
    335A  TYR*     3.3     7.1    -      -       -      +
    336A  PHE*     2.7    65.4    +      -       +      +
    338A  GLY*     3.4    38.6    -      -       -      +
    343A  THR*     4.0     6.7    -      -       +      +
    344A  VAL*     1.3    81.4    -      -       -      +
    346A  ARG*     1.3    63.5    +      -       -      +
    354A  VAL*     3.7    37.2    -      -       +      -
    356A  ALA      3.6     2.7    -      -       -      +
    357A  GLU*     3.6    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 346 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  SER      5.2     5.3    +      -       -      -
    333A  SER*     2.9    30.4    +      -       -      +
    334A  LEU      3.6     2.0    -      -       -      -
    335A  TYR*     3.6    22.8    +      -       +      -
    345A  ILE*     1.3    72.5    -      -       -      +
    347A  TYR*     1.3    55.4    +      -       -      +
    348A  GLU*     4.4    10.9    +      -       -      +
    354A  VAL*     3.3     6.1    -      -       -      +
    355A  LYS*     2.8    61.4    +      -       +      +
    356A  ALA*     2.8    23.4    +      -       +      +
    408A  PRO      3.3    20.8    +      -       -      -
    409A  GLU*     3.0    39.5    +      -       -      +
    411A  LEU*     4.1     5.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 347 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  HIS*     3.6    18.5    -      +       +      +
    317A  ILE      4.4     6.5    +      -       -      -
    318A  LEU*     3.7    23.1    -      -       +      -
    319A  PRO*     3.6    30.1    -      -       +      -
    333A  SER*     4.0     1.8    -      -       -      -
    334A  LEU*     2.8    42.2    +      -       +      +
    336A  PHE*     3.9    17.0    -      +       +      -
    346A  ARG*     1.3    73.2    -      -       -      +
    348A  GLU*     1.3    62.5    +      -       -      +
    349A  LEU*     3.2    33.7    +      -       +      -
    352A  GLU*     3.1    47.4    -      -       -      +
    353A  THR      3.5     5.4    -      -       -      -
    354A  VAL*     4.1    13.9    -      -       +      +
    604A  GOL      4.6     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 348 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  GLY*     4.0     8.3    -      -       -      +
    333A  SER*     3.5    13.3    +      -       -      +
    346A  ARG*     4.0    10.1    +      -       -      -
    347A  TYR*     1.3    68.0    -      -       -      +
    349A  LEU*     1.3    56.4    +      -       -      +
    350A  ASN*     4.5     4.3    -      -       +      +
    351A  THR*     2.4    41.2    +      -       -      +
    352A  GLU*     2.6    37.6    +      -       -      -
    353A  THR      2.7    15.6    +      -       -      +
    355A  LYS*     3.0    35.4    +      -       +      +
----------------------------------------------------------
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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