Contacts of the strand formed by residues 395 - 400 (chain X) in PDB entry 2QW0


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 VAL 395 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313X  LEU*     3.9    32.3    -      -       +      -
    322X  THR      3.4     2.8    -      -       -      +
    323X  GLU*     3.2     3.0    -      -       -      -
    324X  MET*     2.7    44.7    +      -       -      +
    326X  PRO*     5.0     0.4    -      -       +      -
    332X  VAL*     4.6     5.2    -      -       +      -
    334X  ILE*     4.3     6.7    -      -       +      -
    353X  LEU*     4.5     6.5    -      -       +      -
    387X  ALA*     3.7    25.4    -      -       +      -
    388X  VAL      3.7     2.9    -      -       -      -
    389X  TRP*     3.5    38.3    -      -       +      -
    394X  THR*     1.3    70.1    -      -       -      +
    396X  ARG*     1.3    62.5    +      -       -      +
    397X  ILE*     3.8     5.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 396 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322X  THR*     3.5    16.8    -      -       -      +
    323X  GLU*     2.6    42.3    +      -       -      +
    387X  ALA*     3.1     6.5    -      -       -      -
    388X  VAL*     2.8    59.6    +      -       +      +
    390X  THR*     3.6    31.6    -      -       +      +
    391X  PRO*     5.0     5.5    -      -       -      +
    392X  GLU*     5.0     2.0    +      -       -      -
    394X  THR      3.7     1.2    +      -       -      -
    395X  VAL*     1.3    69.9    -      -       -      +
    397X  ILE*     1.3    65.6    +      -       -      +
    398X  LEU*     3.6    20.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 397 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282X  ALA*     4.4    18.8    -      -       +      -
    304X  TYR*     3.8    27.4    -      -       +      -
    313X  LEU*     4.0    14.8    -      -       +      -
    322X  THR*     2.9    40.2    +      -       +      +
    324X  MET*     4.7     7.0    -      -       +      -
    353X  LEU*     3.7    30.7    -      -       +      -
    385X  ASP*     4.9    11.4    -      -       +      +
    386X  VAL      3.7     5.4    -      -       -      +
    387X  ALA*     4.4     4.7    -      -       +      -
    395X  VAL*     4.2     7.0    -      -       +      +
    396X  ARG*     1.3    72.5    -      -       -      +
    398X  LEU*     1.3    63.3    +      -       -      +
    399X  GLY*     4.2    10.1    -      -       -      +
    419X  ARG*     5.2     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 398 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350X  GLU*     3.3    44.6    -      -       +      +
    386X  VAL*     2.7    27.1    +      -       +      +
    387X  ALA      4.0    10.1    -      -       -      -
    388X  VAL*     4.1     9.2    -      -       +      +
    396X  ARG*     3.9    32.1    -      -       +      +
    397X  ILE*     1.3    75.6    -      -       -      +
    399X  GLY*     1.3    54.7    +      -       -      +
    413X  HIS*     3.6    36.3    -      -       +      +
    415X  SER*     3.1    16.6    +      -       -      -
    416X  GLU*     5.2     0.9    +      -       -      +
    419X  ARG*     4.7     6.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 399 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385X  ASP*     3.6     6.7    -      -       -      +
    386X  VAL*     2.7    33.2    +      -       -      +
    397X  ILE*     3.7     7.3    -      -       -      +
    398X  LEU*     1.3    79.7    -      -       -      +
    400X  ARG*     1.3    60.7    +      -       -      +
    413X  HIS*     4.5     4.9    -      -       -      -
    415X  SER*     4.0     9.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 400 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283X  THR*     5.9     5.3    -      -       -      +
    384X  SER*     3.6     7.9    -      -       -      +
    385X  ASP*     3.5    15.9    -      -       -      +
    386X  VAL*     4.3     1.8    -      -       -      +
    399X  GLY*     1.3    75.2    -      -       -      -
    401X  VAL*     1.3    66.2    +      -       -      +
    402X  ASP*     4.0    12.1    -      -       +      +
    403X  ASP*     2.3    61.2    +      -       -      +
    404X  MET*     3.4    12.1    +      -       -      +
    413X  HIS*     4.8     1.4    +      -       -      -
    492X  LYS*     4.3    29.9    -      -       -      +
    495X  ARG*     4.3    11.7    -      -       -      +
----------------------------------------------------------
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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