Contacts of the strand formed by residues 919 - 925 (chain B) in PDB entry 2WIN


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 919 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    917B  ASN      3.4     5.7    +      -       -      -
    918B  LYS*     1.3    72.8    -      -       -      +
    920B  VAL*     1.3    68.2    +      -       -      +
    921B  ALA*     4.0    11.0    -      -       -      +
    922B  VAL*     4.2    24.7    -      -       +      -
   1322B  VAL      4.1     7.4    -      -       -      +
   1323B  VAL*     4.6    13.7    -      -       +      +
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Residues in contact with VAL 920 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    918B  LYS      3.5     0.2    +      -       -      -
    919B  THR*     1.3    75.5    -      -       -      +
    921B  ALA*     1.3    66.3    +      -       +      +
    940B  ILE*     4.3    15.9    -      -       +      -
    941B  PRO*     3.6    24.5    -      -       +      +
    942B  PRO      5.3     4.0    -      -       -      -
    943B  ALA*     5.0     6.7    -      -       +      +
    956B  THR*     4.8     0.9    -      -       +      -
   1322B  VAL*     3.1    32.4    +      -       +      +
   1324B  THR*     3.4    40.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 921 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    919B  THR*     3.7     3.5    -      -       -      -
    920B  VAL*     1.3    89.8    -      -       +      +
    922B  VAL*     1.3    68.9    +      -       -      +
    923B  ARG*     3.4    34.5    -      -       +      +
    940B  ILE*     5.4     4.0    -      -       +      -
    941B  PRO*     5.5     3.4    -      -       +      -
   1320B  LEU      4.1     1.0    -      -       -      +
   1321B  SER*     4.0     0.5    -      -       -      -
   1322B  VAL*     3.3    29.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 922 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    919B  THR*     4.2    19.1    -      -       +      -
    921B  ALA*     1.3    82.4    -      -       -      +
    923B  ARG*     1.3    65.4    +      -       -      +
   1319B  THR*     6.3     2.0    -      -       +      -
   1320B  LEU      3.8     4.3    -      -       -      -
   1321B  SER*     4.1    21.1    -      -       -      -
   1322B  VAL      5.0     0.2    -      -       -      +
   1323B  VAL*     6.0     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 923 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    921B  ALA*     3.4    28.1    -      -       -      +
    922B  VAL*     1.3    80.6    -      -       -      +
    924B  THR*     1.3    65.6    +      -       -      +
    925B  LEU*     5.5     1.3    -      -       +      -
    938B  GLU*     2.8    40.4    +      -       +      +
    939B  ASP      3.0    27.1    +      -       -      -
    940B  ILE*     3.2    26.1    -      -       -      +
    941B  PRO*     4.6     6.9    -      -       -      +
   1319B  THR*     4.3     4.6    -      -       -      +
   1320B  LEU*     3.2    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 924 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923B  ARG*     1.3    77.1    -      -       -      +
    925B  LEU*     1.3    64.9    +      -       -      +
    930B  LEU*     3.3    26.2    -      -       +      +
    936B  GLN*     3.1    18.7    +      -       -      -
   1317B  GLN*     4.1    24.0    -      -       +      +
   1318B  GLY      3.2    20.2    -      -       -      +
   1319B  THR*     4.7     7.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 925 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923B  ARG*     4.0     1.7    +      -       +      +
    924B  THR*     1.3    75.1    -      -       -      +
    926B  ASP*     1.3    61.1    +      -       -      +
    927B  PRO*     4.2     3.1    -      -       -      +
    936B  GLN*     3.7    24.9    -      -       +      +
    938B  GLU*     4.6    16.6    -      -       +      +
    960B  LEU*     4.2    19.3    -      -       +      -
   1272B  LEU*     4.7     6.4    -      -       +      +
   1274B  VAL*     4.6     8.5    -      -       +      -
   1310B  VAL*     4.2    14.8    -      -       +      +
   1312B  ALA*     4.6    15.5    -      -       +      +
   1316B  GLY      4.6     0.3    -      -       -      +
   1317B  GLN*     4.1     0.7    -      -       -      -
   1318B  GLY*     3.0    37.0    +      -       -      +
   1319B  THR*     4.6     0.4    -      -       -      +
   1320B  LEU*     3.6    44.2    -      -       +      +
----------------------------------------------------------
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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