Contacts of the strand formed by residues 540 - 545 (chain A) in PDB entry 4DAY


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 TYR 540 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494A  LEU*     4.4     0.7    -      -       -      -
    498A  MET*     4.3     5.2    -      -       -      +
    515A  VAL*     4.2    13.2    -      -       +      -
    533A  LYS*     4.4    17.3    -      -       +      -
    534A  VAL      3.5     6.3    -      -       -      +
    535A  SER*     4.1    11.7    -      -       -      -
    539A  ALA*     1.3    82.6    -      -       -      +
    541A  LEU*     1.3    67.3    +      -       -      +
     17B  LEU*     3.5    26.0    -      -       +      +
     18B  PRO*     3.1    28.2    +      -       -      +
     19B  ARG      3.8    10.5    -      -       -      -
     20B  SER      3.2    13.5    +      -       -      -
     21B  PRO*     3.6    20.4    -      -       +      -
     22B  PRO*     3.4    24.7    -      -       +      +
    105B  MET*     3.6    14.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 541 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494A  LEU*     3.8    23.6    -      -       +      -
    498A  MET*     4.3    12.8    -      -       +      -
    533A  LYS*     3.2     6.4    -      -       -      +
    534A  VAL*     2.7    46.4    +      -       +      +
    540A  TYR*     1.3    79.9    -      -       -      +
    542A  ASP*     1.3    68.7    +      -       -      +
    543A  VAL*     3.6    13.6    +      -       +      -
    594A  ILE*     4.1    21.1    -      -       +      -
    596A  PHE*     3.8    29.4    -      -       +      -
    601A  SER      5.1     4.0    -      -       -      +
    602A  LYS*     5.7     0.2    -      -       -      -
    603A  ALA*     3.6    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 542 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  THR*     3.7    24.3    +      -       -      +
    531A  THR*     6.3     0.2    -      -       -      -
    532A  ALA      3.5     2.2    -      -       -      +
    533A  LYS*     3.2    35.1    +      -       -      +
    541A  LEU*     1.3    75.4    -      -       -      +
    543A  VAL*     1.3    61.6    +      -       -      +
    602A  LYS*     3.7    34.8    +      -       +      +
    603A  ALA      3.3    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 543 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530A  ILE      3.5     0.9    -      -       -      +
    531A  THR*     3.2     7.6    -      -       -      -
    532A  ALA      2.7    43.0    +      -       -      +
    534A  VAL*     3.8    28.3    -      -       +      -
    541A  LEU*     3.8    22.4    -      -       +      -
    542A  ASP*     1.3    79.4    -      -       -      +
    544A  ASP*     1.3    65.0    +      -       -      +
    545A  PHE*     3.8    21.8    -      -       +      -
    594A  ILE*     4.5     3.8    -      -       +      -
    602A  LYS*     4.8     0.2    -      -       -      -
    603A  ALA*     3.4    14.8    -      -       +      +
    604A  MET      4.4     0.2    -      -       -      +
    605A  VAL*     3.7    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 544 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529A  SER*     6.1     2.7    -      -       -      -
    530A  ILE      3.5     7.2    -      -       -      +
    531A  THR*     3.8    12.5    -      -       +      +
    543A  VAL*     1.3    78.4    -      -       -      +
    545A  PHE*     1.3    67.8    +      -       -      +
    602A  LYS*     3.3    31.7    -      -       -      +
    603A  ALA      3.1    15.0    +      -       -      +
    604A  MET*     3.5    29.0    -      -       +      +
    605A  VAL      2.9    24.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 545 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  ILE*     3.9    24.2    -      -       +      -
    528A  TRP      4.0     9.7    -      -       -      +
    529A  SER*     4.0     5.9    -      -       -      -
    530A  ILE*     3.3    32.0    +      -       +      +
    532A  ALA*     3.8    16.6    -      -       +      -
    534A  VAL*     5.1     1.3    -      -       +      -
    543A  VAL*     3.8    25.8    -      -       +      -
    544A  ASP*     1.3    79.9    -      -       -      +
    546A  VAL*     1.3    64.6    +      -       -      +
    547A  ASP      3.2     3.1    +      -       -      -
    549A  ILE*     4.1    30.7    -      -       +      -
    550A  LEU*     3.9    27.7    -      -       +      +
    585A  LEU*     4.8     9.6    -      -       +      -
    588A  LEU*     5.2     6.1    -      -       +      -
    592A  MET*     5.7     2.0    -      -       -      -
    604A  MET*     5.2     1.6    -      -       -      -
    605A  VAL*     4.2    19.3    -      -       +      -
    608A  LEU*     5.2     5.8    -      -       +      -
----------------------------------------------------------
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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