Contacts of the strand formed by residues 231 - 238 (chain A) in PDB entry 2F24


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 231 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  ALA      3.8     0.2    -      -       -      +
    223A  GLU*     3.3     6.0    -      -       -      +
    224A  VAL*     2.7    46.3    +      -       +      +
    229A  GLN*     4.2    12.3    -      -       +      +
    230A  ARG*     1.3    78.6    -      -       -      +
    232A  VAL*     1.3    68.8    +      -       -      +
    233A  THR      3.9     0.5    +      -       -      -
    247A  GLN*     3.4    43.5    -      -       +      +
    248A  SER      3.2    16.2    -      -       -      +
    249A  THR*     4.3    15.9    -      -       +      -
    316A  PRO*     4.9     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  LEU*     4.4     4.0    -      -       +      -
    167A  LEU*     4.0    26.9    -      -       +      -
    175A  VAL*     4.8     6.5    -      -       +      -
    221A  VAL*     3.8    32.5    -      -       +      -
    222A  ALA      3.4     5.4    -      -       -      +
    223A  GLU*     5.3     0.7    -      -       +      +
    231A  VAL*     1.3    79.7    -      -       -      +
    233A  THR*     1.3    62.8    +      -       -      +
    247A  GLN*     3.3     4.7    -      -       -      -
    248A  SER*     2.9    33.7    +      -       -      +
    251A  ASP*     3.9    30.1    -      -       -      +
    252A  GLY*     4.4     6.3    -      -       -      +
    255A  PHE*     3.7    11.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  GLN      3.9     0.2    -      -       -      +
    221A  VAL*     3.2     5.7    -      -       -      +
    222A  ALA*     2.8    49.8    +      -       +      +
    224A  VAL*     5.0     5.6    -      -       +      -
    231A  VAL      3.9     1.0    +      -       -      -
    232A  VAL*     1.3    76.5    -      -       -      +
    234A  LEU*     1.3    62.2    +      -       -      +
    235A  ASN*     4.2     1.7    +      -       +      +
    245A  GLN*     3.7    23.7    +      -       -      +
    246A  ALA      3.5     4.6    +      -       -      -
    247A  GLN*     4.5     1.5    -      -       -      +
    276A  VAL*     5.2     6.0    -      -       +      +
    293A  LEU*     4.2    21.7    -      -       +      +
    316A  PRO*     3.8    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  ALA*     4.3     5.6    -      -       +      -
    195A  PHE      4.3     9.0    -      -       -      +
    196A  CYS*     3.9    15.7    -      -       -      -
    212A  VAL*     4.3    18.2    -      -       +      -
    219A  CYS*     3.8    36.6    -      -       +      -
    220A  GLN      3.5     3.4    -      -       -      -
    221A  VAL*     3.8     7.0    -      -       +      -
    232A  VAL      4.1     0.4    +      -       -      -
    233A  THR*     1.3    74.2    +      -       -      +
    235A  ASN*     1.3    62.4    +      -       -      +
    236A  ALA*     3.8    15.7    -      -       +      -
    244A  VAL*     5.0     2.0    -      -       +      +
    245A  GLN*     3.2     7.8    -      -       -      +
    246A  ALA*     2.8    33.1    +      -       +      +
    255A  PHE*     3.7    36.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  CYS*     3.3     3.9    -      -       -      -
    220A  GLN*     3.0    27.3    +      -       -      +
    233A  THR*     4.1     2.9    -      -       +      +
    234A  LEU*     1.3    71.8    -      -       -      +
    236A  ALA*     1.3    59.0    +      -       -      +
    243A  ARG*     2.8    49.6    +      -       -      +
    244A  VAL      3.6     5.4    -      -       -      -
    245A  GLN*     4.4    16.0    +      -       +      +
    264A  LEU*     3.8    25.5    -      -       -      +
    274A  GLY      5.3     0.2    -      -       -      +
    276A  VAL*     4.1    22.8    -      -       +      +
    295A  TYR*     3.7    15.1    -      -       -      -
    321A  TRP*     4.5     7.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  ALA*     4.5     0.7    -      -       +      -
    216A  THR*     4.1    22.9    -      -       +      -
    217A  LEU      4.2     2.2    -      -       -      +
    218A  GLU      3.6     4.3    -      -       -      +
    219A  CYS*     3.6    16.4    -      -       +      -
    234A  LEU*     3.8    11.9    -      -       +      -
    235A  ASN*     1.3    73.8    +      -       -      +
    237A  ARG*     1.3    71.1    +      -       -      +
    238A  SER      3.7     0.5    +      -       -      -
    243A  ARG*     3.4    14.6    +      -       -      -
    244A  VAL*     2.8    36.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  THR*     3.4     6.1    -      -       -      -
    217A  LEU*     3.0    48.4    +      -       +      +
    218A  GLU*     2.8    61.7    +      -       -      +
    236A  ALA*     1.3    74.5    -      -       -      +
    238A  SER*     1.3    66.4    +      -       -      +
    239A  HIS*     5.1     2.2    -      -       -      -
    243A  ARG*     3.3    10.8    -      -       -      +
    266A  GLU*     3.3     8.3    -      -       -      +
    270A  GLN*     2.8    33.5    +      -       -      +
    271A  GLY      3.5     3.4    +      -       -      -
    272A  CYS*     3.7    22.4    -      -       -      +
    273A  GLN*     4.6     0.9    -      -       -      -
    304A  ARG*     3.3    23.9    -      -       -      +
    334A  TYR*     3.0    15.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ASP      3.9    11.0    -      -       -      -
    217A  LEU*     4.4     1.1    -      -       -      -
    236A  ALA      4.7     0.7    -      -       -      -
    237A  ARG*     1.3    77.1    -      -       -      +
    239A  HIS*     1.3    64.2    +      -       -      +
    240A  LEU*     3.1    17.9    +      -       -      +
    242A  ALA      2.8    23.7    +      -       -      -
    244A  VAL*     3.8    26.5    -      -       -      -
    266A  GLU*     3.2    24.0    +      -       -      +
    270A  GLN      3.7     3.5    -      -       -      +
    271A  GLY*     3.6    12.6    -      -       -      -
----------------------------------------------------------
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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