Contacts of the strand formed by residues 236 - 241 (chain g) in PDB entry 5OA3


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 ILE 236 (chain g).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196g  ASN*     3.1    26.9    +      -       +      +
    197g  THR*     6.0     0.4    -      -       -      -
    210g  GLY*     3.9    11.2    -      -       -      -
    211g  GLY      3.3    18.4    +      -       -      +
    214g  GLY      4.2    13.0    -      -       -      +
    215g  GLN      4.0     4.0    -      -       -      -
    216g  ALA*     3.6    42.6    -      -       +      +
    233g  GLY      5.5     0.7    -      -       -      +
    235g  ILE*     1.3    78.2    -      -       -      +
    237g  ASN*     1.3    59.1    +      -       -      +
    238g  ALA      4.1     4.7    -      -       -      +
    239g  LEU*     3.7    34.8    -      -       +      -
    250g  ALA*     4.9     5.4    -      -       +      -
    251g  ALA      3.4    11.0    -      -       -      +
    252g  THR*     4.5     8.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 237 (chain g). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196g  ASN*     3.4    19.2    -      -       -      +
    197g  THR*     2.3    29.0    +      -       -      -
    235g  ILE*     3.4    31.7    -      -       -      +
    236g  ILE*     1.3    72.8    -      -       -      +
    238g  ALA*     1.3    53.9    +      -       -      +
    251g  ALA      2.7    11.6    +      -       -      +
    253g  GLY*     3.8    21.3    +      -       -      -
    285g  GLN*     4.2     5.1    +      -       -      +
    286g  CYS      3.1    29.2    +      -       -      +
    287g  THR*     3.7    13.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 238 (chain g). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20g  GLN*     5.1     7.2    -      -       -      +
    155g  ARG*     5.9     0.4    -      -       -      +
    197g  THR*     3.6     8.7    -      -       +      +
    236g  ILE*     4.1     0.9    -      -       -      +
    237g  ASN*     1.3    78.9    -      -       -      +
    239g  LEU*     1.3    65.8    +      -       -      +
    249g  CYS      4.0     0.4    -      -       -      +
    251g  ALA*     2.9    32.8    +      -       +      +
    287g  THR      4.0     1.3    -      -       -      +
    288g  SER*     3.5    17.0    -      -       -      +
    289g  LEU*     3.4    33.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 239 (chain g). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155g  ARG*     4.5     7.1    +      -       -      -
    197g  THR*     3.7    21.4    -      -       -      +
    199g  THR*     2.4    35.9    +      -       -      +
    208g  ALA*     4.0     7.4    -      -       +      +
    209g  SER*     3.6    11.7    -      -       -      +
    210g  GLY*     3.5    28.3    -      -       -      +
    216g  ALA*     4.8    10.1    -      -       +      -
    236g  ILE*     3.7    16.8    -      -       +      -
    238g  ALA*     1.3    79.0    -      -       -      +
    240g  CYS*     1.3    60.2    +      -       -      +
    248g  LEU*     4.0    20.0    -      -       +      -
    249g  CYS      3.2     7.2    -      -       -      +
    250g  ALA*     3.6    32.1    -      -       +      -
    289g  LEU*     5.2     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 240 (chain g). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155g  ARG*     6.2     0.4    -      -       -      +
    199g  THR*     3.9     5.4    -      -       +      -
    239g  LEU*     1.3    77.6    -      -       -      +
    241g  PHE*     1.3    64.2    +      -       -      +
    242g  SER      3.9     0.9    +      -       -      -
    247g  TRP      3.9     0.2    -      -       -      +
    248g  LEU*     4.7     0.9    -      -       -      +
    249g  CYS*     2.9    52.3    +      -       -      +
    289g  LEU*     3.9    30.3    -      -       -      +
    290g  ALA*     4.2     0.9    -      -       -      -
    291g  TRP*     3.9    35.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 241 (chain g). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199g  THR*     3.8    18.0    -      -       +      +
    200g  VAL      5.2     0.2    -      -       -      +
    201g  SER*     3.9    39.7    -      -       -      +
    202g  PRO*     4.6     5.1    -      -       +      +
    206g  LEU*     3.9    17.7    -      -       +      -
    208g  ALA*     3.5    29.8    -      -       +      -
    218g  LEU*     3.4    25.6    -      -       +      -
    240g  CYS*     1.3    74.9    -      -       -      +
    242g  SER*     1.3    65.4    +      -       -      +
    243g  PRO*     3.7     5.7    -      -       -      +
    246g  TYR*     5.7     3.1    -      +       -      -
    247g  TRP      3.9     7.2    -      -       -      -
    248g  LEU*     3.5    25.6    -      -       +      -
    261g  LEU*     3.4    24.5    -      -       +      -
    291g  TRP*     4.3     8.1    -      -       -      +
----------------------------------------------------------
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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