Contacts of the helix formed by residues 2244 - 2255 (chain B) in PDB entry 1WUF


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 SER2244 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1220A  LYS*     5.1     1.9    +      -       -      +
   2088B  GLN*     6.0     3.4    -      -       -      -
   2242B  ILE      3.7     1.0    -      -       -      -
   2243B  ARG*     1.3    81.1    -      -       -      +
   2245B  VAL*     1.3    66.5    +      -       -      +
   2246B  LYS*     3.7    11.6    +      -       -      +
   2247B  ASP*     2.9    31.3    +      -       -      +
   2248B  VAL*     3.0    15.4    +      -       -      +
   2267B  VAL*     4.2     1.4    -      -       -      +
   2272B  SER*     4.4     5.6    -      -       -      -
   2276B  ILE*     3.7    13.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2244B  SER*     1.3    72.7    -      -       -      +
   2246B  LYS*     1.3    52.5    +      -       -      +
   2248B  VAL*     2.9     7.5    +      -       -      +
   2249B  GLU*     2.8    43.8    +      -       -      +
   2272B  SER*     4.5     2.0    +      -       -      +
   2275B  LYS*     3.3    49.6    -      -       +      +
   2276B  ILE*     3.6    11.7    -      -       +      +
   2279B  TYR*     3.7    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS2246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1218A  GLY*     5.7     5.2    -      -       -      +
   1220A  LYS*     5.7     4.5    -      -       +      -
   1221A  ASP*     3.2    36.0    +      -       -      +
   1223A  VAL*     5.7     0.4    -      -       -      +
   1224A  ASP*     4.3    14.1    +      -       -      -
   2244B  SER*     3.7    11.6    -      -       -      +
   2245B  VAL*     1.3    79.4    -      -       -      +
   2247B  ASP*     1.3    63.3    +      -       -      +
   2249B  GLU*     3.3    23.4    +      -       -      +
   2250B  GLN*     3.2    40.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP2247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1220A  LYS*     3.0    41.1    +      -       -      +
   2222B  PHE*     4.2    10.8    -      -       +      -
   2241B  ASN      3.6    17.3    -      -       -      +
   2242B  ILE*     4.1     6.6    -      -       -      +
   2243B  ARG*     2.9    31.7    +      -       -      +
   2244B  SER*     2.9    17.9    +      -       -      +
   2246B  LYS*     1.3    80.3    -      -       -      +
   2248B  VAL*     1.3    61.3    +      -       -      +
   2250B  GLN*     3.4    10.5    +      -       -      +
   2251B  ALA*     3.2    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2242B  ILE*     3.9    23.3    -      -       +      -
   2244B  SER      3.0    12.7    +      -       -      +
   2245B  VAL*     2.9     9.7    +      -       -      +
   2247B  ASP*     1.3    75.8    -      -       -      +
   2249B  GLU*     1.3    53.4    +      -       -      +
   2251B  ALA*     3.1     5.4    +      -       +      +
   2252B  HIS*     2.8    33.1    +      -       -      +
   2257B  CYS*     6.1     0.7    -      -       -      -
   2260B  ILE*     4.4    13.0    -      -       +      -
   2276B  ILE*     3.8    26.2    -      -       +      -
   2279B  TYR*     3.7    28.3    -      -       +      -
   2280B  CYS*     4.3     8.1    -      -       -      -
   2285B  ILE*     3.9    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU2249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1223A  VAL*     6.2     0.4    -      -       -      -
   2245B  VAL*     2.8    29.6    +      -       -      +
   2246B  LYS*     3.4    27.1    +      -       +      +
   2248B  VAL*     1.3    76.5    -      -       -      +
   2250B  GLN*     1.3    62.3    +      -       +      +
   2252B  HIS*     3.4     1.9    +      -       -      +
   2253B  SER*     3.0    25.5    +      -       -      -
   2279B  TYR*     3.4    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN2250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1220A  LYS*     3.4    16.5    -      -       -      +
   1221A  ASP*     3.4     6.8    +      -       -      -
   1222A  PHE*     2.5    46.8    -      -       -      +
   1223A  VAL*     2.6    29.4    -      -       +      +
   2222B  PHE*     4.0    17.1    -      -       +      -
   2246B  LYS*     3.2    26.2    +      -       -      +
   2247B  ASP*     3.7    12.6    -      -       -      +
   2249B  GLU*     1.3    76.4    -      -       -      +
   2251B  ALA*     1.3    68.5    +      -       -      +
   2252B  HIS      3.1     0.2    +      -       -      -
   2253B  SER*     3.3     6.4    +      -       -      -
   2254B  ILE*     2.9    34.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA2251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2222B  PHE*     4.0    15.8    -      -       +      -
   2238B  LEU*     3.9    28.3    -      -       +      -
   2242B  ILE*     4.4     2.2    -      -       +      -
   2247B  ASP      3.2    10.9    +      -       -      +
   2248B  VAL*     3.1    11.1    +      -       +      +
   2250B  GLN*     1.3    79.1    -      -       -      +
   2252B  HIS*     1.3    57.5    +      -       -      +
   2254B  ILE      3.8     0.2    -      -       -      -
   2255B  GLY*     2.8     6.2    +      -       -      -
   2256B  SER*     2.7    33.5    +      -       -      -
   2257B  CYS*     3.9    15.6    +      -       -      -
   2260B  ILE*     5.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS2252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2248B  VAL      2.8    16.9    +      -       -      +
   2249B  GLU      3.5     5.4    -      -       -      +
   2251B  ALA*     1.3    73.6    -      -       -      +
   2253B  SER*     1.3    62.9    +      -       -      +
   2254B  ILE      3.1     0.9    -      -       -      -
   2255B  GLY*     2.8    21.8    +      -       -      -
   2257B  CYS*     5.4     9.0    -      -       -      -
   2279B  TYR*     2.9    23.0    +      -       -      +
   2283B  ASN*     3.1    45.4    +      -       +      +
   2285B  ILE*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER2253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1223A  VAL*     3.2    36.7    -      -       -      +
   2249B  GLU      3.0    11.1    +      -       -      -
   2250B  GLN      3.3     2.9    +      -       -      -
   2252B  HIS*     1.3    79.0    -      -       -      +
   2254B  ILE*     1.3    61.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE2254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1223A  VAL*     3.5    23.6    -      -       +      -
   1254A  ILE*     3.6    35.0    -      -       +      -
   2222B  PHE*     3.8    27.8    -      -       +      +
   2223B  VAL*     4.7     6.1    -      -       +      +
   2226B  ALA*     3.3    18.9    -      -       +      +
   2230B  LYS*     3.9    12.6    +      -       -      -
   2250B  GLN*     2.9    26.3    +      -       +      +
   2253B  SER*     1.3    78.1    -      -       -      +
   2255B  GLY*     1.3    59.7    -      -       -      +
   2256B  SER*     3.7    16.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2226B  ALA*     2.9    20.5    -      -       -      +
   2229B  GLN*     3.6    13.6    -      -       -      +
   2230B  LYS*     4.4     7.4    -      -       -      +
   2251B  ALA      2.8     1.4    +      -       -      -
   2252B  HIS*     2.8    17.7    +      -       -      -
   2253B  SER      3.3     0.2    -      -       -      -
   2254B  ILE*     1.3    79.8    -      -       -      +
   2256B  SER*     1.3    62.1    +      -       -      +
   2257B  CYS      3.4     6.3    -      -       -      -
----------------------------------------------------------
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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