Contacts of the helix formed by residues 428 - 437 (chain B) in PDB entry 1YQZ


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 ASP 428 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355B  GLN*     4.7     0.2    -      -       -      -
    395B  ARG*     2.8    47.6    +      -       -      -
    415B  PHE*     4.2     4.6    -      -       +      -
    417B  VAL*     4.0    26.4    -      -       +      +
    424B  SER*     3.5     9.4    -      -       -      -
    425B  HIS*     3.3    12.3    +      -       -      +
    427B  LYS*     1.3    78.0    -      -       -      +
    429B  LEU*     1.3    75.9    +      -       -      +
    430B  ILE*     3.0    22.8    +      -       -      +
    431B  ASN*     2.9    28.8    +      -       -      +
    432B  MET*     2.9    11.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 429 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    353B  VAL*     3.9    13.8    -      -       +      +
    355B  GLN*     3.9    29.1    -      -       +      +
    356B  GLY      3.7    23.1    -      -       -      +
    357B  ALA      4.9     0.2    -      -       -      +
    368B  LEU*     3.4    46.9    -      -       +      +
    370B  LEU*     4.0    25.6    -      -       +      -
    395B  ARG*     3.9    15.3    -      -       +      +
    425B  HIS*     5.4     3.4    -      -       +      +
    428B  ASP*     1.3    90.2    +      -       -      +
    430B  ILE*     1.3    63.4    +      -       -      +
    432B  MET*     3.2     4.6    +      -       -      +
    433B  ILE*     3.0    25.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 430 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370B  LEU*     4.0    20.4    -      -       +      -
    395B  ARG*     3.9    23.1    -      -       +      +
    398B  VAL*     3.4    37.5    -      -       +      -
    399B  LEU*     4.4    11.4    -      -       +      -
    412B  LEU*     3.5    34.5    -      -       +      +
    415B  PHE*     3.7    30.1    -      -       +      -
    428B  ASP*     3.0    12.6    +      -       -      +
    429B  LEU*     1.3    78.0    -      -       -      +
    431B  ASN*     1.3    63.0    +      -       -      +
    433B  ILE*     3.3    12.7    +      -       -      +
    434B  GLY      3.5     6.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 431 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296A  TRP*     3.5    18.9    +      -       -      -
    412B  LEU      3.0    26.0    +      -       -      -
    413B  THR*     3.5    11.7    +      -       -      +
    415B  PHE*     2.8    29.7    +      -       -      +
    417B  VAL*     4.5     0.9    -      -       -      +
    427B  LYS*     3.7     7.1    -      -       -      -
    428B  ASP*     2.9    34.1    +      -       -      +
    430B  ILE*     1.3    76.7    -      -       -      +
    432B  MET*     1.3    64.0    +      -       -      +
    434B  GLY*     2.9    13.3    +      -       -      -
    435B  TYR*     3.0    35.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 432 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  COA      3.4    55.0    -      -       +      +
    353B  VAL*     3.9    16.8    -      -       +      -
    355B  GLN*     4.0    16.4    -      -       -      +
    427B  LYS*     3.8    41.3    -      -       -      +
    428B  ASP      2.9    16.1    +      -       -      +
    429B  LEU*     3.5     8.7    -      -       -      +
    431B  ASN*     1.3    74.5    -      -       -      +
    433B  ILE*     1.3    65.1    +      -       -      +
    435B  TYR*     3.7     6.6    -      -       +      -
    436B  LYS*     2.8    35.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 433 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351B  VAL*     3.7    34.0    -      -       +      +
    352B  GLU*     3.8     8.7    -      -       -      +
    353B  VAL*     4.1     7.6    -      -       +      -
    370B  LEU*     3.7    35.4    -      -       +      +
    372B  VAL*     3.8    24.9    -      -       +      -
    399B  LEU*     6.5     0.2    -      -       +      -
    409B  VAL*     3.8    10.8    -      -       +      -
    412B  LEU*     3.8    20.9    -      -       +      -
    429B  LEU      3.0    19.3    +      -       -      +
    430B  ILE*     3.5     8.3    -      -       -      +
    431B  ASN      3.2     0.4    -      -       -      -
    432B  MET*     1.3    74.9    -      -       -      +
    434B  GLY*     1.3    63.7    +      -       -      +
    436B  LYS      3.4     0.2    +      -       -      -
    437B  ALA*     3.0    22.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 434 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409B  VAL      3.4    24.5    -      -       -      -
    410B  ASP*     4.6     6.2    -      -       -      +
    412B  LEU*     4.1     4.9    -      -       -      +
    413B  THR*     3.4    17.0    -      -       -      +
    430B  ILE      3.5     4.2    +      -       -      -
    431B  ASN      2.9     8.2    +      -       -      -
    433B  ILE*     1.3    80.8    -      -       -      +
    435B  TYR*     1.3    61.8    +      -       -      +
    437B  ALA*     3.4    14.8    +      -       -      +
    438B  LYS      5.0     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 435 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  ARG*     3.0    47.9    +      -       -      -
    303A  SER*     3.6    26.9    +      -       -      -
    307A  GLU*     6.1     1.3    -      -       -      -
    441A  COA      3.6    37.7    +      -       +      +
    413B  THR*     3.5    16.0    +      -       +      -
    427B  LYS*     3.5    29.9    -      -       +      +
    431B  ASN*     3.0    41.8    +      -       +      -
    432B  MET*     3.2    12.3    +      -       +      +
    434B  GLY*     1.3    76.2    -      -       -      +
    436B  LYS*     1.3    61.7    +      -       -      +
    437B  ALA      3.5     1.4    +      -       -      -
    438B  LYS*     5.2     6.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 436 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  COA      3.7    28.3    -      -       +      +
    351B  VAL*     3.6    17.5    -      -       +      +
    352B  GLU      2.7    24.9    +      -       -      +
    353B  VAL*     3.2    25.9    -      -       +      +
    432B  MET*     2.8    20.6    +      -       +      +
    435B  TYR*     1.3    75.3    -      -       -      +
    437B  ALA*     1.3    69.4    +      -       -      +
    438B  LYS*     4.6     1.5    -      -       -      +
   3004B   CL      3.6    18.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 437 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351B  VAL*     3.8    16.4    -      -       +      +
    374B  TYR*     4.2     4.4    +      -       +      -
    379B  ARG*     3.6    13.5    -      -       -      +
    409B  VAL*     3.8    23.1    -      -       +      -
    410B  ASP*     3.9     3.4    -      -       -      +
    433B  ILE      3.0    13.1    +      -       -      +
    434B  GLY*     3.6    14.1    -      -       -      +
    435B  TYR      3.3     3.2    -      -       -      -
    436B  LYS*     1.3    83.9    -      -       -      +
    438B  LYS*     1.3    79.6    -      -       -      +
----------------------------------------------------------
 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