Contacts of the strand formed by residues 168 - 176 (chain B) in PDB entry 4Y14


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 THR 168 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159B  GLU*     3.6    31.6    +      -       -      +
    160B  LEU      3.4     6.1    -      -       -      -
    161B  GLU*     3.7    28.9    -      -       +      +
    166B  GLN      3.6     6.0    +      -       -      +
    167B  GLU*     1.3    82.6    -      -       -      +
    169B  ARG*     1.3    70.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 169 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99B  VAL      4.4     0.6    +      -       -      -
    100B  TRP*     2.7    75.0    +      -       +      +
    103B  LYS*     3.8    30.1    -      -       -      +
    104B  SER      5.3     0.8    +      -       -      -
    105B  ARG*     3.6    42.1    -      -       -      +
    159B  GLU*     3.5     6.7    -      -       -      -
    160B  LEU*     2.9    35.5    +      -       +      +
    167B  GLU*     3.2    25.7    +      -       -      +
    168B  THR*     1.3    79.8    -      -       -      +
    170B  GLU*     1.3    62.2    +      -       -      +
    171B  ILE*     3.7    11.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  ARG*     3.6    20.0    -      -       -      +
    157B  GLN*     2.7    41.1    +      -       +      +
    158B  LEU      3.4    11.0    -      -       -      +
    159B  GLU*     4.8     1.1    -      -       -      +
    169B  ARG*     1.3    73.4    -      -       -      +
    171B  ILE*     1.3    67.6    +      -       -      +
    172B  LEU*     3.5    27.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  TRP*     4.1    14.6    -      -       +      -
     99B  VAL*     4.0    11.9    -      -       +      -
    104B  SER      3.4    25.8    -      -       -      +
    105B  ARG*     3.5    14.6    -      -       -      +
    106B  GLY      4.4     0.2    -      -       -      +
    107B  VAL*     4.1    22.2    -      -       +      -
    156B  ARG      3.7     0.3    -      -       -      +
    158B  LEU*     2.9    46.4    +      -       +      +
    160B  LEU*     3.9    32.3    -      -       +      -
    169B  ARG*     4.5     8.5    -      -       +      -
    170B  GLU*     1.3    81.5    -      -       -      +
    172B  LEU*     1.3    75.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  ARG      2.9     9.8    +      -       -      +
    106B  GLY*     3.4     2.4    -      -       -      -
    107B  VAL      2.9    26.9    +      -       -      +
    155B  VAL*     5.0     7.9    -      -       +      -
    156B  ARG      3.5    11.4    -      -       -      +
    157B  GLN*     4.1    12.8    -      -       +      -
    170B  GLU*     3.5    27.4    -      -       +      +
    171B  ILE*     1.3    78.8    -      -       -      +
    173B  HIS*     1.3    59.3    +      -       -      +
    174B  PHE*     3.6    21.4    -      -       +      -
    201B  SER*     3.9    28.3    -      -       -      +
    203B  SER*     3.7    18.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  TRP*     5.4     0.2    -      +       -      -
    107B  VAL*     3.5    24.0    -      -       +      -
    109B  MET*     3.8    23.6    -      -       +      +
    124B  TYR*     2.7    36.1    +      +       -      -
    125B  TRP*     4.0    13.6    -      +       -      -
    154B  THR      3.4     2.6    -      -       -      +
    155B  VAL*     3.3     5.5    -      -       -      +
    156B  ARG*     2.8    81.8    +      -       +      +
    158B  LEU*     4.0    20.9    -      -       +      -
    171B  ILE      3.8     0.2    +      -       -      -
    172B  LEU*     1.3    73.3    -      -       -      +
    174B  PHE*     1.3    62.1    +      -       -      +
    175B  HIS*     4.0     8.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106B  GLY*     4.6     2.0    -      -       -      -
    107B  VAL      2.8    20.3    +      -       -      +
    108B  VAL*     3.5    10.9    -      -       +      -
    109B  MET*     2.8    28.9    +      -       -      +
    154B  THR      3.8     3.1    -      -       -      -
    155B  VAL*     3.8    32.3    -      -       +      -
    172B  LEU*     3.6    26.7    -      -       +      -
    173B  HIS*     1.3    69.4    -      -       -      +
    175B  HIS*     1.3    59.5    +      -       -      +
    194B  PHE*     3.6    24.5    -      +       +      -
    197B  LYS*     4.1     7.9    -      -       +      -
    198B  VAL*     3.7    33.2    -      -       +      -
    201B  SER*     3.3    35.2    -      -       -      -
    203B  SER*     3.6    19.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  MET*     3.4    28.7    -      -       +      -
    111B  ASN      2.6    29.7    +      -       -      -
    112B  ARG*     4.3     0.4    -      -       -      -
    125B  TRP*     4.0     6.6    -      +       -      -
    153B  TYR*     3.2     6.6    -      -       -      -
    154B  THR*     2.9    35.9    +      -       -      +
    156B  ARG*     3.3    38.2    +      -       -      +
    173B  HIS*     4.0     4.7    -      -       +      -
    174B  PHE*     1.3    72.5    -      -       -      +
    176B  TYR*     1.3    65.5    +      -       -      +
    177B  THR*     3.5    21.6    +      -       +      +
    194B  PHE*     4.0     3.5    -      -       -      -
    402B   CL      3.5    27.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  MET      2.7     7.1    +      -       -      -
    110B  LEU*     3.6    43.2    -      -       +      +
    111B  ASN      3.8     1.7    -      -       -      +
    152B  TYR*     3.6    24.4    -      +       -      -
    153B  TYR*     4.3     0.4    -      -       -      -
    174B  PHE      3.8     1.6    +      -       -      -
    175B  HIS*     1.3    74.6    -      -       -      +
    177B  THR*     1.3    63.7    +      -       -      +
    178B  THR*     3.3    21.1    -      -       -      -
    179B  TRP*     3.6    38.6    -      +       +      -
    185B  PRO*     3.4    19.7    -      -       +      +
    186B  GLU*     2.6    21.9    +      -       -      -
    190B  SER*     3.6    15.5    -      -       -      -
    191B  PHE*     4.3     8.5    -      +       +      -
    194B  PHE*     3.5    40.1    -      +       +      -
----------------------------------------------------------
 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