Contacts of the strand formed by residues 243 - 251 (chain B) in PDB entry 2W77


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 243 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  ARG*     2.9    26.9    +      -       -      -
    177B  MET*     3.8     2.6    -      -       +      +
    219B  TYR*     3.6    23.8    -      +       +      -
    238B  SER*     4.2     9.5    -      -       -      -
    239B  ASP      3.5    23.8    -      -       -      -
    240B  MET*     3.1    24.6    +      -       +      +
    242B  ILE*     1.3    99.1    -      -       +      +
    244B  ASP*     1.3    61.5    +      -       -      +
    245B  ARG      4.4     8.1    -      -       -      +
    246B  VAL*     5.4     0.2    -      -       +      -
    268B  LEU*     3.4    43.1    -      -       +      -
    269B  ILE      3.2    19.5    -      -       -      +
    270B  ARG*     3.8    23.3    +      -       +      -
    271B  LYS*     3.7     8.9    -      -       -      -
    351B  ASP*     5.1     1.7    +      -       -      -
    353B  GLN*     6.0     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140B  ILE*     3.4    15.7    -      -       +      +
    141B  THR*     3.1    23.6    +      -       -      -
    142B  GLU*     3.2    23.8    +      -       -      +
    174B  ARG*     3.2    31.6    +      -       -      +
    177B  MET*     4.9     1.8    -      -       -      -
    243B  TYR*     1.3    73.2    -      -       -      +
    245B  ARG*     1.3    97.0    +      -       -      +
    269B  ILE*     2.8    15.0    +      -       +      +
    270B  ARG      4.3    11.7    -      -       -      +
    271B  LYS*     4.0     6.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  LEU*     3.1    21.0    +      -       -      +
    138B  GLY      3.9     5.1    +      -       -      -
    139B  THR      3.5    31.7    +      -       -      -
    140B  ILE*     3.9     5.9    -      -       -      +
    141B  THR*     3.7    17.4    +      -       -      +
    149B  PRO*     5.7     2.0    -      -       -      -
    151B  THR      4.7     1.5    +      -       -      -
    152B  ILE*     4.5     7.3    -      -       -      +
    171B  VAL*     4.0    21.3    -      -       +      -
    172B  VAL      3.4    16.2    -      -       -      +
    177B  MET*     4.5     4.7    -      -       -      -
    243B  TYR*     3.7     3.0    -      -       -      +
    244B  ASP*     1.3    98.0    +      -       -      +
    246B  VAL*     1.3    65.6    +      -       -      +
    247B  GLU*     2.7    34.9    +      -       +      -
    268B  LEU*     3.9     0.7    -      -       -      -
    269B  ILE*     3.1    56.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  VAL*     3.5     4.1    -      -       -      +
    172B  VAL*     3.1    29.2    +      -       +      +
    177B  MET*     4.6     2.7    -      -       -      -
    185B  ILE*     4.0    14.4    -      -       +      -
    188B  VAL*     4.0    18.8    -      -       +      -
    189B  MET*     4.1    12.6    -      -       +      -
    240B  MET*     3.9    27.6    -      -       -      -
    243B  TYR*     5.4     1.1    -      -       +      -
    245B  ARG*     1.3    77.8    -      -       -      +
    247B  GLU*     1.3    62.9    +      -       -      +
    248B  VAL*     3.8     5.5    +      -       +      +
    266B  ILE*     3.8    29.2    -      -       +      -
    267B  ASN      3.5     4.9    -      -       -      +
    268B  LEU*     4.3    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  LEU      3.6     7.1    -      -       -      +
    152B  ILE*     3.4    12.1    -      -       +      +
    153B  ALA      4.7     0.2    +      -       -      -
    154B  THR*     2.6    39.2    +      -       +      +
    169B  ILE*     4.6     3.6    -      -       +      -
    170B  THR      3.8     3.8    -      -       -      -
    171B  VAL*     4.3    16.2    -      -       +      -
    245B  ARG*     2.7    35.6    +      -       +      +
    246B  VAL*     1.3    74.4    -      -       -      +
    248B  VAL*     1.3    60.9    +      -       -      +
    249B  LEU      4.0     0.5    +      -       -      -
    265B  THR      3.8     1.0    -      -       -      +
    266B  ILE*     3.7     1.7    -      -       -      -
    267B  ASN*     2.6    71.9    +      -       +      +
    269B  ILE*     3.9     5.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  ILE*     3.7     2.9    -      -       -      -
    170B  THR*     2.7    45.0    +      -       -      +
    172B  VAL*     6.2     0.9    -      -       +      -
    189B  MET*     3.6    31.4    -      -       +      -
    192B  THR*     4.3    12.6    -      -       +      -
    195B  ILE*     3.8    21.3    -      -       +      -
    246B  VAL*     4.3     7.0    -      -       +      +
    247B  GLU*     1.3    75.9    -      -       -      +
    249B  LEU*     1.3    61.4    +      -       -      +
    250B  LYS*     3.8    20.6    +      -       +      +
    264B  ALA*     4.3     8.7    -      -       +      -
    265B  THR      3.6     7.2    -      -       -      +
    266B  ILE*     4.1    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154B  THR*     3.8    27.6    -      -       +      +
    155B  ALA*     4.1    20.9    -      -       +      +
    165B  THR*     6.1     0.2    -      -       +      -
    167B  GLN*     3.5    35.9    -      -       +      +
    168B  SER      3.3    17.7    -      -       -      +
    169B  ILE*     3.6    16.4    -      -       +      -
    247B  GLU      4.0     0.8    +      -       -      -
    248B  VAL*     1.3    71.6    -      -       -      +
    250B  LYS*     1.3    63.1    +      -       -      +
    253B  THR*     3.7    26.0    -      -       +      +
    256B  LEU*     6.5     0.4    -      -       +      -
    264B  ALA*     3.0     5.5    -      -       -      -
    265B  THR*     2.9    42.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  GLN*     5.1     2.9    +      -       -      +
    168B  SER*     3.1    30.2    +      -       -      +
    170B  THR*     2.9    32.6    +      -       -      +
    193B  PRO      3.2    20.3    +      -       -      -
    194B  GLY*     4.3     6.5    -      -       -      +
    195B  ILE*     4.8     3.1    -      -       +      -
    209B  ALA*     4.9    12.3    -      -       +      -
    210B  ARG*     3.2    30.6    +      -       +      +
    248B  VAL*     4.0    21.3    -      -       +      +
    249B  LEU*     1.3    82.0    -      -       -      +
    251B  GLY*     1.3    57.9    +      -       -      +
    253B  THR*     5.0     0.7    -      -       -      -
    263B  GLY      3.6     7.4    -      -       -      +
    264B  ALA*     4.3     1.1    -      -       +      +
    615B  ASN*     5.3     0.3    +      -       -      -
    617B  GLU*     4.4     1.7    -      -       -      +
    674B  GLU*     2.8    34.4    +      -       -      +
    676B  GLU*     3.0    11.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  GLN*     5.9     0.4    -      -       -      -
    210B  ARG*     3.4    17.2    -      -       -      +
    249B  LEU      4.0     1.0    +      -       -      -
    250B  LYS*     1.3    74.1    -      -       -      +
    252B  ALA*     1.3    60.4    +      -       -      -
    253B  THR*     4.2     2.8    +      -       -      +
    262B  LEU*     4.1     1.2    -      -       -      +
    263B  GLY*     2.9    40.0    +      -       -      -
    264B  ALA      3.9     0.5    +      -       -      -
    615B  ASN*     3.5    16.2    -      -       -      -
    638B  ILE*     4.4     5.7    -      -       -      +
----------------------------------------------------------
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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