Contacts of the strand formed by residues 223 - 229 (chain C) in PDB entry 3THT


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 GLN 223 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178C  HIS*     4.2     0.6    -      -       -      +
    179C  PHE      2.9    28.5    +      -       -      +
    181C  TYR*     3.9    32.8    -      -       +      +
    200C  LEU*     3.9     2.5    -      -       -      +
    221C  PRO*     3.8     0.7    -      -       -      +
    222C  ASP*     1.3    87.1    +      -       -      +
    224C  MET*     1.3    77.9    +      -       -      +
    225C  THR*     3.6    22.3    +      -       -      +
    245C  PHE*     4.0    19.1    -      -       +      -
    332C  THR      4.4     0.2    -      -       -      +
    333C  PHE*     3.4     2.3    -      -       -      +
    334C  ARG*     2.7    62.7    +      -       -      +
    336C  VAL*     4.0     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179C  PHE*     2.8    47.4    +      -       +      +
    200C  LEU*     3.7    10.9    -      -       +      +
    201C  PRO*     3.6    38.1    -      -       +      -
    204C  CYS*     3.8    14.6    -      -       -      -
    223C  GLN*     1.3    84.1    +      -       -      +
    225C  THR*     1.3    62.1    +      -       -      +
    226C  ILE*     3.8    24.7    -      -       +      -
    331C  PHE*     4.3    17.9    -      -       +      -
    332C  THR      3.0    15.7    -      -       -      +
    333C  PHE*     3.5    31.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176C  VAL*     5.2     3.8    -      -       +      -
    177C  LYS      3.8     2.7    -      -       -      -
    178C  HIS*     3.3    50.0    -      -       +      -
    223C  GLN*     3.6    12.7    +      -       -      +
    224C  MET*     1.3    71.3    -      -       -      +
    226C  ILE*     1.3    65.0    +      -       -      +
    227C  ASN*     3.8    11.7    +      -       -      +
    330C  SER      3.6     1.6    -      -       -      +
    332C  THR*     2.9    35.5    +      -       -      -
    334C  ARG*     3.0    31.5    +      -       -      +
    403C  AKG      4.8     3.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156C  VAL*     3.9    19.1    -      -       +      -
    158C  TRP*     5.4     7.2    -      -       +      +
    175C  ARG      4.5     0.2    -      -       -      -
    176C  VAL*     3.5     7.6    -      -       -      +
    177C  LYS*     3.2    40.1    +      -       +      +
    179C  PHE*     4.0    21.5    -      -       +      -
    224C  MET*     3.8    17.0    -      -       +      -
    225C  THR*     1.3    70.7    -      -       -      +
    227C  ASN*     1.3    70.8    +      -       -      +
    228C  GLN*     6.0     0.7    -      -       +      -
    329C  THR*     3.4    15.0    -      -       +      -
    330C  SER      3.1     3.8    -      -       -      +
    331C  PHE*     3.3    51.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174C  ARG*     2.7    33.7    -      -       -      +
    175C  ARG      3.5     6.7    +      -       -      +
    176C  VAL*     4.5     7.4    -      -       -      +
    225C  THR*     3.8    14.0    +      -       -      +
    226C  ILE*     1.3    83.0    -      -       -      +
    228C  GLN*     1.3    59.7    +      -       -      +
    229C  TYR*     3.2    31.6    +      -       +      +
    328C  ARG      3.7     0.5    -      -       -      +
    329C  THR*     3.1     9.9    -      -       -      +
    330C  SER*     3.0    33.0    +      -       -      +
    403C  AKG      3.5    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158C  TRP*     3.2    39.6    -      -       +      +
    174C  ARG*     3.3    11.4    -      -       -      +
    175C  ARG*     3.0    61.3    +      -       +      +
    226C  ILE*     6.0     0.7    -      -       +      -
    227C  ASN*     1.3    74.9    -      -       -      +
    229C  TYR*     1.3    59.9    +      -       -      +
    230C  GLU*     2.7    33.1    +      -       -      +
    233C  GLN*     3.6     5.1    +      -       -      +
    327C  LEU*     3.2    27.5    -      -       +      +
    328C  ARG      3.4     2.2    -      -       -      -
    329C  THR*     4.2    12.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 229 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174C  ARG*     3.4    24.5    -      -       +      -
    227C  ASN*     3.2    39.0    +      -       +      +
    228C  GLN*     1.3    72.7    -      -       -      +
    230C  GLU*     1.3    64.7    +      -       -      +
    231C  PRO      3.6     0.2    -      -       -      -
    233C  GLN*     3.9    13.5    -      -       -      +
    234C  GLY*     3.5    34.3    -      -       -      -
    235C  ILE*     4.0     8.3    -      -       +      +
    258C  ILE*     5.0     5.4    -      -       +      -
    294C  ILE*     3.7    10.2    -      -       +      +
    325C  ARG*     6.5     0.4    -      -       -      -
    326C  GLY      3.9     2.3    -      -       -      +
    327C  LEU*     3.2     6.0    -      -       -      +
    328C  ARG*     2.8    78.7    +      -       +      +
    330C  SER*     3.6     2.0    -      -       -      -
    403C  AKG      2.6    23.5    +      -       -      +
----------------------------------------------------------
 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