Contacts of the strand formed by residues 1103 - 1107 (chain A) in PDB entry 1YW2


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 TYR1103 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1018A  TRP*     3.5    25.9    -      +       -      -
   1019A  GLU*     2.7    52.4    +      -       -      -
   1020A  VAL*     3.9    10.1    -      -       +      -
   1052A  VAL*     4.1     3.1    -      -       +      -
   1053A  LYS      3.4     4.0    -      -       -      +
   1054A  LYS*     3.1    38.3    -      -       +      +
   1089A  VAL*     3.2     9.4    -      -       -      +
   1090A  PHE*     2.7    81.9    +      +       +      +
   1092A  PRO*     4.0    15.5    -      -       +      -
   1101A  ASP*     4.1    11.2    -      -       +      -
   1102A  VAL*     1.3    78.3    -      -       -      +
   1104A  LEU*     1.3    63.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1052A  VAL*     3.4     5.9    -      -       -      +
   1053A  LYS*     3.0    45.6    +      -       +      +
   1055A  LEU*     4.5    12.3    -      -       +      -
   1071A  GLU*     3.4    30.1    -      -       +      +
   1072A  LEU*     4.4    13.9    -      -       +      +
   1075A  LEU*     3.5    15.7    -      -       +      -
   1086A  LEU*     3.7    11.9    -      -       +      -
   1088A  ASP      3.7     2.2    -      -       -      -
   1089A  VAL*     3.5    26.7    -      -       +      -
   1102A  VAL*     3.9    13.0    -      -       +      -
   1103A  TYR*     1.3    76.9    -      -       -      +
   1105A  VAL*     1.3    60.4    +      -       -      +
   2001A  PGJ      3.1    20.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1024A  TYR*     4.0    17.7    -      -       +      +
   1050A  VAL*     3.9    31.2    -      -       +      -
   1051A  ALA      3.5     3.8    -      -       -      +
   1052A  VAL*     4.6     7.6    -      -       +      -
   1086A  LEU*     3.2     9.4    -      -       -      +
   1087A  LEU*     2.6    38.0    +      -       +      -
   1088A  ASP*     2.7    39.9    +      -       +      +
   1090A  PHE*     3.7    25.4    -      -       +      -
   1104A  LEU*     1.3    77.2    -      -       -      +
   1106A  THR*     1.3    59.4    +      -       -      +
   2001A  PGJ      3.3     3.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1050A  VAL*     3.2    10.0    -      -       -      +
   1051A  ALA*     2.8    29.1    +      -       +      -
   1084A  ILE*     4.0     9.3    -      -       +      +
   1085A  GLY      2.5    31.0    +      -       -      -
   1087A  LEU*     3.3    13.2    -      -       -      -
   1105A  VAL*     1.3    71.6    -      -       -      +
   1107A  HIS*     1.3    76.5    +      -       -      +
   2001A  PGJ      3.5    51.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS1107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1049A  ARG      4.3     5.4    -      -       -      +
   1050A  VAL*     4.6     2.2    -      -       -      +
   1051A  ALA      4.2     0.2    -      -       -      -
   1084A  ILE*     4.9     1.3    -      -       +      +
   1085A  GLY*     4.9     7.4    +      -       -      -
   1087A  LEU*     3.1    33.1    -      -       +      +
   1106A  THR*     1.3    86.4    +      -       -      +
   1108A  LEU*     1.3    68.5    +      -       -      +
   1109A  MET*     3.3    11.5    +      -       -      +
   1165A  LYS*     4.1    32.9    +      -       +      -
   2001A  PGJ      3.4    13.2    -      -       -      -
----------------------------------------------------------
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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