Contacts of the strand formed by residues 94 - 99 (chain A) in PDB entry 1W3U


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 THR 94 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  LEU*     3.9     1.8    -      -       -      -
     92A  GLY      4.9     1.7    +      -       -      -
     93A  GLN*     1.3    76.7    +      -       -      +
     95A  ALA*     1.3    57.7    +      -       -      +
     96A  ASN*     3.2    16.0    +      -       -      +
    116A  ASP*     3.3    15.9    +      -       +      +
    117A  THR      3.4    32.5    -      -       -      +
    118A  HIS*     3.5    17.0    -      -       +      +
    140A  GLN*     5.7     2.7    +      -       -      -
    142A  ASN*     2.9    14.3    +      -       -      +
    143A  ALA*     3.4     2.2    -      -       -      -
    144A  ALA      2.8    21.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  LEU*     3.5    16.1    -      -       +      +
     94A  THR*     1.3    69.2    -      -       -      +
     96A  ASN*     1.3    62.6    +      -       -      +
     97A  TYR*     3.5    12.4    -      -       +      -
    111A  ALA*     4.5     0.7    -      -       +      -
    116A  ASP      2.8    15.3    +      -       -      +
    117A  THR*     3.1     8.2    -      -       +      -
    118A  HIS      2.8    22.5    +      -       -      +
    144A  ALA*     4.5     0.9    -      -       -      -
    145A  TYR*     3.3    41.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  THR*     3.2    20.4    -      -       -      +
     95A  ALA*     1.3    73.8    -      -       -      +
     97A  TYR*     1.3    59.1    +      -       -      +
    118A  HIS*     3.1    36.4    +      -       -      +
    120A  ALA*     3.6     3.7    -      -       +      +
    139A  LEU*     3.6    27.3    -      -       +      +
    140A  GLN*     5.4     3.5    +      -       -      +
    143A  ALA*     3.5    16.0    -      -       -      +
    145A  TYR*     3.0    17.0    +      -       -      +
    146A  LEU*     3.3    18.0    -      -       +      -
    147A  HIS*     2.7    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  PHE*     4.7     1.2    +      -       -      -
     85A  PRO*     4.4     6.4    -      -       -      +
     95A  ALA*     3.5    30.5    -      -       +      -
     96A  ASN*     1.3    78.2    -      -       -      +
     98A  VAL*     1.3    64.6    +      -       -      +
     99A  MET*     3.6    19.5    +      -       -      +
    104A  ALA*     4.7     3.1    -      -       -      -
    107A  ALA*     3.8    21.8    +      -       +      +
    108A  LEU*     3.8    27.6    -      -       +      -
    111A  ALA*     3.2    24.3    -      -       +      +
    118A  HIS      2.8    12.0    +      -       -      +
    119A  VAL*     3.6     4.9    -      -       -      -
    120A  ALA      2.9    23.4    +      -       -      -
    121A  ALA      3.7     2.6    +      -       -      +
    145A  TYR*     2.8    27.5    +      +       -      -
    146A  LEU*     4.5     1.3    -      -       -      -
    147A  HIS*     3.3    39.6    -      +       +      -
----------------------------------------------------------
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Residues in contact with VAL 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  TYR*     1.3    73.6    -      -       -      +
     99A  MET*     1.3    61.3    +      -       -      +
    100A  THR*     3.5    14.5    +      -       +      -
    104A  ALA*     3.4    16.3    -      -       -      +
    121A  ALA*     3.5     7.0    -      -       +      +
    132A  PRO*     3.9    27.4    -      -       +      -
    134A  LEU*     3.9    16.8    -      -       +      -
    137A  ILE*     4.0    17.0    -      -       +      -
    146A  LEU*     3.7    25.8    -      -       +      -
    147A  HIS*     2.9    18.7    +      -       -      +
    148A  LEU*     3.9    19.4    -      -       +      -
    149A  THR*     4.9     0.2    +      -       -      -
    159A  PHE*     4.0     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  TYR*     3.6    26.9    -      -       -      +
     98A  VAL*     1.3    72.0    -      -       -      +
    100A  THR*     1.3    61.5    +      -       -      +
    101A  GLY      3.7     2.2    -      -       -      +
    104A  ALA*     3.7     6.7    -      -       -      +
    105A  SER*     3.6    41.1    -      -       -      +
    108A  LEU*     3.7    26.0    -      -       +      -
    119A  VAL*     3.5    31.0    -      -       +      -
    121A  ALA      2.8    13.1    +      -       -      +
    122A  SER*     3.2    11.8    +      -       -      +
    123A  SER*     2.9    26.7    +      -       -      -
    128A  TYR*     4.0     9.0    -      -       +      +
----------------------------------------------------------
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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