Contacts of the helix formed by residues 1289 - 1301 (chain B) in PDB entry 1BRW


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 LEU1289 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1277B  SER*     3.7    35.5    -      -       -      +
   1278B  HIS*     3.9    34.5    -      -       +      +
   1281B  TYR*     3.8    27.4    -      -       +      -
   1288B  SER*     1.3    72.1    -      -       -      +
   1290B  ASP*     1.3    62.3    +      -       -      +
   1292B  ALA*     3.0     5.0    +      -       -      +
   1293B  ARG*     2.7    37.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1290 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1288B  SER*     3.5     6.7    +      -       -      +
   1289B  LEU*     1.3    80.8    +      -       -      +
   1291B  GLU*     1.3    62.5    +      -       +      +
   1293B  ARG*     3.2    12.9    +      -       -      +
   1294B  ARG*     2.9    55.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1291 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1286B  ALA*     4.5     1.6    -      -       -      -
   1287B  PRO*     3.5    34.1    -      -       +      -
   1288B  SER*     2.9    26.2    +      -       -      +
   1289B  LEU      3.2     0.4    -      -       -      -
   1290B  ASP*     1.3    80.2    -      -       +      +
   1292B  ALA*     1.3    57.2    +      -       -      +
   1294B  ARG*     3.8    23.1    +      -       -      +
   1295B  LEU*     2.9    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1292 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1277B  SER*     3.7    29.2    -      -       -      +
   1280B  VAL*     4.0     9.2    -      -       +      +
   1281B  TYR      4.6     2.0    -      -       -      +
   1286B  ALA*     3.5    19.7    -      -       +      +
   1288B  SER      3.0    18.6    +      -       -      +
   1289B  LEU*     3.0     6.9    +      -       -      +
   1291B  GLU*     1.3    75.6    -      -       -      +
   1293B  ARG*     1.3    61.8    +      -       -      +
   1295B  LEU*     3.2     7.4    +      -       -      +
   1296B  LEU*     3.1    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1293 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1270B  GLU*     5.9     4.9    -      -       -      +
   1273B  LEU*     4.4    26.3    -      -       +      +
   1277B  SER*     3.8    14.3    -      -       -      +
   1289B  LEU      2.7    19.7    +      -       -      +
   1290B  ASP*     3.5    13.8    +      -       -      +
   1292B  ALA*     1.3    72.9    -      -       -      +
   1294B  ARG*     1.3    58.7    +      -       +      +
   1296B  LEU*     2.9    23.2    +      -       -      +
   1297B  GLU*     3.0    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1294 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1290B  ASP*     2.9    37.8    +      -       +      +
   1291B  GLU*     4.0    22.8    +      -       -      +
   1293B  ARG*     1.3    77.7    -      -       +      +
   1295B  LEU*     1.3    52.6    +      -       -      +
   1297B  GLU*     3.4    18.2    -      -       -      +
   1298B  GLU*     2.5    49.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1295 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1102B  VAL*     3.8    37.0    -      -       +      +
   1280B  VAL*     4.3    13.9    -      -       +      -
   1285B  LYS      3.9    21.5    -      -       -      +
   1286B  ALA*     4.7     4.5    -      -       +      -
   1291B  GLU      2.9    18.7    +      -       -      +
   1292B  ALA      3.4     6.1    -      -       -      +
   1293B  ARG      3.1     0.6    -      -       -      -
   1294B  ARG*     1.3    76.6    -      -       -      +
   1296B  LEU*     1.3    61.5    +      -       -      +
   1298B  GLU*     3.8    18.0    -      -       +      +
   1299B  ALA*     3.5    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1296 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1098B  LEU*     3.9    31.1    -      -       +      +
   1099B  VAL*     4.1    18.8    -      -       +      -
   1102B  VAL*     4.1    21.3    -      -       +      -
   1273B  LEU*     3.8    20.9    -      -       +      +
   1276B  GLY*     3.4    37.9    -      -       -      +
   1277B  SER*     3.5     7.2    -      -       -      +
   1280B  VAL*     4.3     3.4    -      -       +      -
   1292B  ALA      3.1    16.9    +      -       -      +
   1293B  ARG*     2.9     8.1    +      -       -      +
   1295B  LEU*     1.3    74.5    -      -       +      +
   1297B  GLU*     1.3    65.6    +      -       -      +
   1298B  GLU      3.0     1.8    -      -       -      -
   1299B  ALA*     3.0    16.0    +      -       -      +
   1300B  ILE*     3.2    16.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1297 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1273B  LEU*     3.7    30.1    -      -       +      +
   1293B  ARG*     3.0    31.1    +      -       -      +
   1294B  ARG*     3.4    29.3    +      -       -      +
   1296B  LEU*     1.3    76.9    -      -       -      +
   1298B  GLU*     1.3    61.6    +      -       +      +
   1300B  ILE*     3.5    12.7    +      -       +      +
   1301B  ARG*     3.3    46.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1298 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1294B  ARG*     2.5    37.0    -      -       +      +
   1295B  LEU*     3.8    20.3    -      -       -      +
   1296B  LEU      3.0     0.4    -      -       -      -
   1297B  GLU*     1.3    76.1    -      -       +      +
   1299B  ALA*     1.3    59.2    +      -       -      +
   1300B  ILE      3.1     2.2    -      -       -      -
   1301B  ARG*     3.6     7.2    +      -       -      +
   1302B  SER*     2.9    33.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1299 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1098B  LEU*     4.6     3.4    -      -       +      -
   1101B  SER*     3.6    24.7    -      -       -      +
   1102B  VAL*     3.9    11.2    -      -       +      -
   1295B  LEU      3.5    11.4    +      -       -      +
   1296B  LEU*     3.0    11.1    +      -       -      +
   1298B  GLU*     1.3    76.7    -      -       -      +
   1300B  ILE*     1.3    60.1    +      -       -      +
   1302B  SER*     3.5     7.4    -      -       -      -
   1304B  ALA*     3.0    16.8    +      -       +      -
   1305B  ALA*     2.9    29.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1300 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1094B  VAL*     6.1     2.7    -      -       +      -
   1098B  LEU*     3.8    23.6    -      -       +      -
   1259B  THR*     4.9     8.3    -      -       +      +
   1260B  LEU*     3.8    15.6    -      -       +      +
   1261B  LYS*     4.2     4.7    -      -       -      +
   1262B  GLY*     3.8    31.9    -      -       -      +
   1269B  THR*     5.0    13.5    -      -       +      -
   1273B  LEU*     4.4    17.3    -      -       +      -
   1296B  LEU      3.5    13.5    -      -       -      +
   1297B  GLU*     3.6    11.7    -      -       -      +
   1298B  GLU      3.1     0.4    -      -       -      -
   1299B  ALA*     1.3    76.0    -      -       -      +
   1301B  ARG*     1.3    68.7    +      -       +      +
   1303B  GLY*     3.0    15.4    +      -       -      -
   1305B  ALA*     4.1     9.0    -      -       +      -
   1306B  ILE*     5.5     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1301 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1297B  GLU*     3.3    35.4    +      -       -      +
   1298B  GLU*     3.6     6.5    +      -       -      +
   1300B  ILE*     1.3    80.6    -      -       +      +
   1302B  SER*     1.3    59.9    +      -       -      +
   1303B  GLY      3.4     0.7    +      -       -      -
----------------------------------------------------------
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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