Contacts of the strand formed by residues 227 - 235 (chain H) in PDB entry 1II4


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 GLY 227 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193H  LYS*     5.5     0.2    -      -       -      -
    194H  ASN*     3.8    11.9    -      -       -      -
    225H  ASP      3.4     1.2    +      -       -      -
    226H  LYS*     1.3    84.8    -      -       -      +
    228H  ASN*     1.3    64.9    +      -       -      -
    229H  TYR*     3.4    11.3    -      -       -      -
    245H  HIS*     3.6     2.5    -      -       -      -
    246H  LEU      2.8    27.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 228 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192H  LEU      3.4     0.3    -      -       -      +
    193H  LYS*     3.2     5.7    -      -       -      +
    194H  ASN*     2.6    52.6    +      -       -      +
    227H  GLY*     1.3    74.8    -      -       -      -
    229H  TYR*     1.3    62.6    +      -       -      +
    230H  THR*     4.1     2.4    +      -       -      +
    243H  THR*     3.8    21.6    -      -       +      +
    244H  TYR      3.4     2.0    -      -       -      -
    245H  HIS*     3.9    19.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 229 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177H  PHE*     3.7    32.3    -      +       +      -
    191H  TRP*     4.5     8.1    -      -       +      -
    192H  LEU      3.1    10.8    -      -       -      +
    193H  LYS*     3.1    33.2    +      -       +      +
    198H  PHE*     3.7    16.8    -      +       -      -
    216H  LEU*     4.1    12.1    -      -       +      -
    218H  MET*     3.6    32.2    -      -       +      -
    225H  ASP*     2.6    34.3    +      -       -      -
    227H  GLY*     3.4    20.6    -      -       -      -
    228H  ASN*     1.3    75.5    -      -       -      +
    230H  THR*     1.3    60.5    +      -       -      +
    231H  CYS      4.3     0.2    +      -       -      -
    242H  HIS      3.9     0.7    -      -       -      +
    243H  THR*     3.4     0.5    -      -       -      -
    244H  TYR*     2.7    45.6    +      -       -      +
    246H  LEU*     3.7    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 230 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190H  ARG      3.6     0.3    -      -       -      +
    191H  TRP*     3.2     6.9    -      -       -      -
    192H  LEU*     2.6    57.7    +      -       +      +
    195H  GLY*     5.2     5.0    +      -       -      -
    228H  ASN*     4.1     3.0    +      -       -      +
    229H  TYR*     1.3    72.2    -      -       -      +
    231H  CYS*     1.3    70.5    +      -       -      +
    232H  VAL*     3.9    10.8    -      -       +      -
    241H  ASN*     3.9    17.3    -      -       +      +
    242H  HIS      3.3    10.8    -      -       -      +
    243H  THR*     2.7    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 231 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156H  TRP*     3.8    15.5    -      -       -      -
    179H  CYS*     2.5    40.6    -      -       -      -
    189H  MET*     3.9     9.6    -      -       +      -
    190H  ARG      3.3     5.2    -      -       -      +
    191H  TRP*     3.4    32.6    -      -       +      -
    230H  THR*     1.3    73.2    -      -       -      +
    232H  VAL*     1.3    60.7    +      -       -      +
    240H  ILE      3.9     0.3    -      -       -      +
    241H  ASN*     3.1    21.8    -      -       -      +
    242H  HIS*     3.0    16.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 232 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188H  THR      3.6     0.9    -      -       -      +
    189H  MET*     3.4     3.5    -      -       -      +
    190H  ARG*     2.7    74.7    +      -       +      +
    192H  LEU*     4.0    24.2    -      -       +      -
    230H  THR*     3.9    15.9    -      -       +      -
    231H  CYS*     1.3    77.0    -      -       -      +
    233H  VAL*     1.3    63.4    +      -       -      +
    234H  GLU*     4.7     1.8    -      -       -      +
    239H  SER*     4.1    17.3    -      -       -      +
    240H  ILE      3.7     6.5    -      -       -      +
    241H  ASN*     4.3     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 233 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154H  PRO*     3.7    10.6    -      -       +      +
    156H  TRP*     3.5    27.4    -      -       +      -
    181H  ALA*     3.9    12.8    -      -       +      -
    187H  PRO*     3.3    31.0    -      -       +      -
    188H  THR      3.1     8.7    -      -       -      +
    189H  MET*     3.5    32.5    -      -       +      -
    214H  TRP*     4.5     1.8    -      -       +      -
    232H  VAL*     1.3    74.7    -      -       -      +
    234H  GLU*     1.3    68.3    +      -       -      +
    239H  SER*     3.3     1.4    +      -       -      -
    240H  ILE*     2.9    39.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 234 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154H  PRO*     3.5     4.5    -      -       -      -
    187H  PRO*     3.0     6.5    -      -       -      +
    188H  THR*     2.8    49.5    +      -       -      +
    190H  ARG*     3.6    24.1    +      -       -      +
    232H  VAL*     4.7     0.8    -      -       -      +
    233H  VAL*     1.3    80.2    -      -       -      +
    235H  ASN*     1.3    68.5    +      -       -      +
    238H  GLY      3.2    15.3    -      -       -      +
    239H  SER*     3.2    17.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 235 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152H  ARG      3.0    24.2    +      -       -      -
    153H  ALA      3.9     0.2    -      -       -      -
    154H  PRO*     3.2    25.5    -      -       -      +
    183H  GLY*     4.1     2.4    -      -       -      -
    184H  ASN      4.0     2.8    -      -       -      +
    185H  PRO*     3.1    36.5    +      -       +      +
    186H  MET      4.8     1.1    -      -       -      +
    187H  PRO*     4.1     3.9    -      -       +      +
    234H  GLU*     1.3    82.7    -      -       -      +
    236H  GLU*     1.3    60.1    +      -       -      +
    237H  TYR*     2.8    27.1    +      -       -      +
    238H  GLY      2.9    18.3    +      -       -      +
----------------------------------------------------------
 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