Contacts of the strand formed by residues 1047 - 1053 (chain B) in PDB entry 2IUI


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 TYR1047 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1004B  ASN*     5.1     6.9    +      -       -      +
   1007B  LEU*     3.4    19.1    -      -       +      +
   1013B  TYR*     3.8    23.3    +      +       -      -
   1036B  VAL*     3.9    14.1    -      -       +      -
   1037B  ARG      3.3    12.3    -      -       -      +
   1038B  ASP*     3.3    26.7    -      -       -      -
   1039B  ALA      3.6     1.8    -      -       -      +
   1043B  MET*     5.1     9.7    -      -       +      +
   1045B  GLY*     3.4    25.9    -      -       -      -
   1046B  ASP*     1.3    76.8    -      -       -      +
   1048B  THR*     1.3    62.5    +      -       -      +
   1061B  LYS*     3.3     8.3    +      -       -      -
   1062B  ILE*     2.9    38.7    +      -       +      +
   1069B  TYR*     4.0    13.4    +      +       -      -
   1080B  VAL*     3.8    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1048 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036B  VAL*     3.4     7.1    -      -       -      -
   1037B  ARG*     2.8    54.7    +      -       -      +
   1039B  ALA*     3.5     3.3    -      -       -      -
   1047B  TYR*     1.3    72.4    -      -       -      +
   1049B  LEU*     1.3    73.4    +      -       -      +
   1050B  THR*     3.8     2.6    +      -       -      +
   1059B  LEU*     3.7    18.6    -      -       +      -
   1060B  ILE      3.6     2.9    -      -       -      +
   1061B  LYS*     2.5    23.1    +      -       -      +
   1204D  PTR      2.9    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1049 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1034B  PHE*     3.8    32.3    -      -       +      -
   1035B  LEU      3.6    15.7    -      -       -      +
   1036B  VAL*     4.1     8.1    -      -       +      -
   1048B  THR*     1.3    76.4    -      -       -      +
   1050B  THR*     1.3    64.3    +      -       -      +
   1051B  LEU*     4.7     1.6    -      -       +      -
   1058B  LYS      3.5     0.3    -      -       -      +
   1059B  LEU*     3.8     0.2    -      -       -      -
   1060B  ILE*     2.8    68.1    +      -       +      +
   1062B  ILE*     4.0    18.3    -      -       +      +
   1071B  PHE*     3.9    26.0    -      -       +      -
   1084B  ILE*     4.1     7.6    -      -       +      -
   1092B  LEU*     5.1     1.1    -      -       +      -
   1103B  LEU*     4.3    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1050 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1022B  VAL*     3.8    24.3    -      -       +      +
   1023B  ASN*     5.6     0.7    -      -       -      +
   1026B  LEU*     3.4    24.5    -      -       +      +
   1034B  PHE*     3.2     6.1    -      -       -      +
   1035B  LEU*     3.0    35.3    +      -       -      +
   1037B  ARG*     4.5     6.2    +      -       -      +
   1048B  THR*     3.8     5.9    +      -       -      +
   1049B  LEU*     1.3    75.0    -      -       -      +
   1051B  LEU*     1.3    62.8    +      -       -      +
   1057B  ASN*     3.7    19.1    -      -       +      -
   1058B  LYS      3.3     5.6    -      -       -      +
   1059B  LEU*     3.5    24.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1051 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026B  LEU*     4.4     2.0    -      -       -      -
   1032B  GLY*     4.1    20.6    -      -       -      -
   1033B  THR      3.5     9.9    -      -       -      +
   1034B  PHE*     4.2     3.8    -      -       +      -
   1049B  LEU*     4.7     3.8    -      -       +      -
   1050B  THR*     1.3    76.3    -      -       -      +
   1052B  ARG*     1.3    72.7    +      -       -      +
   1053B  LYS*     3.5     2.8    +      -       +      -
   1057B  ASN*     3.4     3.3    -      -       -      -
   1058B  LYS*     2.7    42.5    +      -       +      +
   1060B  ILE*     4.0    17.5    -      -       +      -
   1092B  LEU*     3.8    20.2    -      -       +      -
   1099B  LEU*     4.1    12.1    -      -       +      -
   1101B  VAL*     3.7    26.5    -      -       +      -
   1102B  LYS      4.5     0.9    -      -       -      +
   1103B  LEU*     3.7    21.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1052 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026B  LEU*     3.3    22.4    +      -       +      +
   1027B  ARG*     4.7     2.4    -      -       -      +
   1028B  ASP*     3.3    27.1    +      -       -      +
   1029B  THR*     3.1    31.1    +      -       -      +
   1030B  ALA      3.1    26.7    -      -       -      +
   1031B  ASP*     3.2     5.4    -      -       -      +
   1032B  GLY*     2.8    27.9    +      -       -      -
   1033B  THR*     2.8    19.3    +      -       -      +
   1051B  LEU*     1.3    72.9    -      -       -      +
   1053B  LYS*     1.3    62.9    +      -       -      +
   1055B  GLY*     3.3    37.5    +      -       -      -
   1056B  ASN*     3.6     6.3    -      -       -      +
   1057B  ASN*     3.0    26.3    +      -       -      +
   1101B  VAL*     4.9     0.2    -      -       -      +
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Residues in contact with LYS1053 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1031B  ASP*     3.5    13.9    +      -       -      +
   1051B  LEU*     3.5     7.2    +      -       +      +
   1052B  ARG*     1.3    76.8    -      -       -      +
   1054B  GLY*     1.3    69.3    +      -       -      +
   1055B  GLY      3.3     0.4    -      -       -      -
   1056B  ASN*     3.0    28.2    +      -       -      +
   1058B  LYS*     3.5    32.0    +      -       +      -
   1098B  LYS      3.4    27.4    -      -       -      +
   1099B  LEU*     4.4     4.3    -      -       +      -
   1100B  ASP*     3.5    29.3    +      -       -      +
   1101B  VAL*     3.6    33.7    -      -       +      +
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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