Contacts of the strand formed by residues 246 - 253 (chain A) in PDB entry 3H8E


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 ARG 246 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  PRO*     3.7    33.6    -      -       +      +
    200A  SER*     3.6    23.8    +      -       -      +
    203A  ALA*     4.2     4.7    -      -       +      +
    220A  VAL*     3.7    22.1    -      -       +      +
    221A  LEU      3.4     8.3    -      -       -      +
    222A  ASP*     3.6    24.6    -      -       -      +
    223A  GLU*     3.9     2.4    -      -       -      +
    226A  ILE*     4.2     0.2    -      -       -      -
    234A  PHE*     3.6     4.6    -      -       -      -
    244A  PRO*     3.5    26.5    -      -       -      +
    245A  PRO*     1.3    99.1    +      -       -      +
    247A  LEU*     1.3    59.7    +      -       -      +
    248A  ILE*     4.0    15.0    +      -       +      -
    317A  LEU      3.5     1.4    -      -       -      +
    319A  CYS*     2.9    35.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  VAL*     3.6     0.9    -      -       -      -
    221A  LEU*     2.8    69.1    +      -       +      +
    226A  ILE*     3.8     5.0    -      -       +      +
    231A  MET*     3.6    35.2    -      -       +      -
    234A  PHE*     4.1    11.4    -      -       +      -
    246A  ARG*     1.3    71.7    -      -       -      +
    248A  ILE*     1.3    62.5    +      -       -      +
    249A  VAL*     4.8     4.5    -      -       +      -
    316A  LEU*     4.4     5.4    -      -       +      -
    317A  LEU      3.5    20.4    -      -       -      +
    318A  ALA*     4.3     1.3    -      -       -      -
    359A  THR*     3.8    31.2    -      -       +      +
    362A  TYR*     4.1    14.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  PRO      4.5     2.0    -      -       -      +
    202A  LEU*     3.6    19.5    -      -       +      +
    203A  ALA*     3.5    40.4    -      -       +      +
    206A  ALA*     3.4    26.9    -      -       +      -
    218A  VAL*     4.5     3.8    -      -       +      -
    219A  GLU      3.7     7.2    -      -       -      +
    220A  VAL*     4.5     4.9    -      -       +      +
    246A  ARG*     4.2     7.6    -      -       +      -
    247A  LEU*     1.3    78.0    -      -       -      +
    249A  VAL*     1.3    63.0    +      -       -      +
    250A  LEU*     3.8    13.9    -      -       +      -
    315A  CYS      3.4     1.2    -      -       -      +
    316A  LEU*     3.3     5.2    -      -       -      -
    317A  LEU*     2.8    48.9    +      -       +      +
    319A  CYS*     3.9    16.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  LYS      3.8     0.9    -      -       -      +
    218A  VAL*     3.2     7.1    -      -       -      +
    219A  GLU*     2.8    47.1    +      -       +      +
    221A  LEU*     3.8    24.9    -      -       +      -
    247A  LEU*     4.6     4.0    -      -       +      +
    248A  ILE*     1.3    76.6    -      -       -      +
    250A  LEU*     1.3    65.7    +      -       -      +
    251A  ASN*     4.8     7.0    -      -       +      +
    314A  VAL*     4.3     6.3    -      -       +      -
    315A  CYS      3.3     3.8    -      -       -      +
    316A  LEU*     3.9    24.0    -      -       +      -
    362A  TYR*     4.0    16.6    -      -       +      +
    366A  PHE*     4.2    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  ALA*     3.8    25.1    -      -       +      +
    209A  LEU*     4.2     7.2    -      -       +      -
    216A  LEU*     4.1     6.6    -      -       +      +
    217A  LYS      3.6     3.8    -      -       -      -
    218A  VAL*     3.9    14.4    -      -       +      -
    248A  ILE*     3.8    21.5    -      -       +      -
    249A  VAL*     1.3    77.0    -      -       -      +
    251A  ASN*     1.4    59.8    +      -       -      +
    252A  TYR*     3.9     0.8    +      -       -      +
    298A  PHE*     4.1    10.1    -      -       +      -
    301A  LEU*     3.8    29.6    -      -       +      -
    313A  LEU      3.6     2.9    -      -       -      +
    314A  VAL*     3.5     2.0    -      -       -      -
    315A  CYS*     2.8    56.3    +      -       +      +
    317A  LEU*     3.9    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ALA      3.5     2.3    -      -       -      +
    216A  LEU*     3.5     4.9    -      -       -      +
    217A  LYS*     2.8    50.8    +      -       +      +
    249A  VAL*     4.1     9.1    -      -       +      +
    250A  LEU*     1.4    72.4    -      -       -      +
    252A  TYR*     1.3    61.3    +      -       -      +
    253A  GLN*     2.9    37.2    +      -       -      +
    313A  LEU      3.7     2.5    -      -       -      -
    314A  VAL*     3.8    23.0    -      -       +      +
    366A  PHE*     4.2    15.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ALA*     3.4    31.4    -      -       +      -
    216A  LEU*     3.8    12.9    -      -       +      +
    250A  LEU      3.9     0.2    +      -       -      -
    251A  ASN*     1.3    74.1    -      -       -      +
    253A  GLN*     1.4    61.4    +      -       -      +
    254A  GLY*     3.7    10.5    -      -       -      -
    301A  LEU*     4.1    11.4    -      -       +      -
    304A  VAL*     3.6    26.7    -      -       +      -
    305A  LEU*     3.6    30.1    -      -       +      -
    308A  GLN*     3.4    21.9    +      -       +      +
    309A  LEU      2.6    29.8    +      -       -      -
    311A  VAL*     3.2    16.4    -      -       +      -
    312A  ASN*     3.4     2.6    -      -       -      -
    313A  LEU*     2.8    49.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ALA*     3.0    25.8    +      -       -      +
    251A  ASN*     2.9    36.0    +      -       -      +
    252A  TYR*     1.4    69.4    +      -       -      +
    254A  GLY*     1.3    60.7    +      -       -      +
    255A  GLY      3.5     4.8    -      -       -      +
    257A  LYS*     4.9    20.4    +      -       -      +
    261A  PRO*     5.3     2.0    -      -       -      +
    312A  ASN*     3.4    34.2    +      -       -      +
    314A  VAL*     4.9     4.6    -      -       -      +
----------------------------------------------------------
 Back to top of page


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