Contacts of the helix formed by residues 209 - 224 (chain A) in PDB entry 1YNU


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 209 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  GLN*     3.0    28.0    +      -       -      +
    207A  THR      4.7     5.2    -      -       -      +
    208A  MET*     1.3    75.4    -      -       -      +
    210A  ARG*     1.3    65.2    +      -       -      +
    211A  ASN*     3.6     8.9    +      -       -      +
    212A  GLU*     3.0    37.1    +      -       -      +
    213A  LEU*     3.1    12.3    +      -       -      +
    244A  ILE*     5.1     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  LYS*     5.6     0.8    -      -       -      +
    208A  MET      3.9     0.8    +      -       -      -
    209A  THR*     1.3    73.2    -      -       -      +
    211A  ASN*     1.3    61.3    +      -       -      +
    213A  LEU*     3.2    12.3    +      -       -      +
    214A  TYR*     2.9    67.8    +      -       +      -
    244A  ILE*     3.4    36.5    -      -       +      +
    248A  GLU*     3.7    21.8    +      -       -      +
    249A  VAL*     5.2    10.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  THR*     3.2     8.9    +      -       -      +
    210A  ARG*     1.3    82.0    -      -       -      +
    212A  GLU*     1.3    57.1    +      -       +      +
    214A  TYR*     3.4    14.1    +      -       -      +
    215A  LEU*     2.9    29.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  PHE      4.9     0.2    -      -       -      +
    172A  GLN*     3.4    29.5    +      -       +      +
    173A  ILE*     2.9    46.9    +      -       +      +
    207A  THR      4.5     1.2    -      -       -      +
    208A  MET*     3.3    28.3    -      -       +      +
    209A  THR*     3.0    38.7    +      -       -      +
    211A  ASN*     1.3    76.3    -      -       +      +
    213A  LEU*     1.3    58.1    -      -       -      +
    215A  LEU*     3.3    11.3    +      -       -      +
    216A  LEU*     3.0    32.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  VAL*     6.1     1.8    -      -       +      -
    199A  ASN*     4.3    11.7    -      -       +      +
    208A  MET*     3.5    30.3    -      -       +      +
    209A  THR      3.1    16.2    +      -       -      +
    210A  ARG*     3.5     9.2    -      -       -      +
    212A  GLU*     1.3    74.3    -      -       -      +
    214A  TYR*     1.3    65.4    +      -       -      +
    216A  LEU*     3.1     8.6    +      -       +      +
    217A  LEU*     2.9    29.5    +      -       +      +
    227A  LEU*     5.4     1.2    -      -       +      +
    229A  SER*     5.8     0.9    -      -       -      +
    244A  ILE*     3.3    36.3    -      -       +      +
    245A  SER      4.4     0.4    -      -       -      +
    246A  VAL*     4.4    20.6    -      -       +      -
    249A  VAL*     3.4    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  ARG*     2.9    58.3    +      -       +      +
    211A  ASN*     3.9    13.9    -      -       -      +
    213A  LEU*     1.3    75.7    -      -       -      +
    215A  LEU*     1.3    57.3    -      -       -      +
    217A  LEU*     3.3     9.7    +      -       +      +
    218A  SER*     2.9    32.0    +      -       -      -
    249A  VAL*     3.5    30.4    +      -       +      +
    252A  ASP*     4.0    28.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  ILE*     3.3    30.7    -      -       +      +
    174A  THR*     3.8     2.9    -      -       -      -
    175A  GLU*     3.5    44.6    -      -       +      +
    178A  LEU*     3.5    22.9    -      -       +      -
    211A  ASN      2.9    18.0    +      -       -      +
    212A  GLU*     3.4    10.1    -      -       -      +
    213A  LEU      3.2     0.2    -      -       -      -
    214A  TYR*     1.3    77.3    -      -       -      +
    216A  LEU*     1.3    57.4    +      -       -      +
    218A  SER*     3.5     6.0    +      -       -      -
    219A  PHE*     3.0    25.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  ILE*     4.0    18.2    -      -       +      -
    178A  LEU*     4.2    27.4    -      -       +      -
    195A  VAL*     4.3    12.8    -      -       +      -
    197A  VAL*     3.8    32.8    -      -       +      -
    208A  MET*     3.3    34.5    -      -       +      -
    212A  GLU      3.0    10.7    +      -       -      +
    213A  LEU*     3.1     9.8    +      -       +      +
    215A  LEU*     1.3    75.2    -      -       +      +
    217A  LEU*     1.3    66.5    +      -       -      +
    219A  PHE*     3.4     3.2    +      -       +      +
    220A  VAL*     3.1    31.8    +      -       +      +
    227A  LEU*     4.3    17.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  LEU      2.9    17.0    +      -       -      +
    214A  TYR*     3.7     8.3    -      -       +      +
    216A  LEU*     1.3    77.3    -      -       -      +
    218A  SER*     1.3    61.8    +      -       -      +
    220A  VAL*     3.4     8.4    -      -       +      +
    221A  GLU*     3.2    26.1    +      -       -      +
    227A  LEU*     3.8    22.7    -      -       +      -
    246A  VAL*     4.2     8.1    -      -       +      +
    249A  VAL*     3.4    40.8    -      -       +      +
    250A  LEU*     3.9    22.9    -      -       +      -
    261A  VAL*     4.2     8.8    -      -       +      +
    265A  VAL*     3.8    22.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  TYR      2.9    17.1    +      -       -      -
    215A  LEU*     3.8     7.2    -      -       -      -
    217A  LEU*     1.3    76.3    -      -       -      +
    219A  PHE*     1.3    65.8    +      -       -      +
    221A  GLU*     3.0     9.9    +      -       -      +
    222A  ASP*     3.0    36.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LEU*     4.0    19.5    -      -       +      -
    178A  LEU*     3.6    56.1    -      -       +      -
    179A  GLU*     3.3    21.1    -      -       -      -
    182A  TYR*     3.8    16.4    -      +       +      -
    195A  VAL*     4.4    15.5    -      -       +      -
    215A  LEU*     3.0    20.2    +      -       +      +
    216A  LEU*     3.8     4.0    -      -       +      +
    218A  SER*     1.3    78.1    +      -       -      +
    220A  VAL*     1.3    60.5    +      -       +      +
    222A  ASP*     3.2     8.0    +      -       +      +
    223A  LYS*     3.0    66.5    +      -       +      +
    225A  ILE*     4.7     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  VAL*     4.1    21.3    -      -       +      -
    216A  LEU*     3.1    17.4    +      -       -      +
    217A  LEU*     3.4    18.2    -      -       +      +
    219A  PHE*     1.3    76.5    -      -       +      +
    221A  GLU*     1.3    61.6    +      -       -      +
    222A  ASP      3.3     0.2    -      -       -      -
    223A  LYS      3.8     0.9    -      -       -      -
    224A  GLY      3.1     9.4    +      -       -      -
    225A  ILE*     3.2    34.8    +      -       +      +
    226A  HIS      4.2     7.9    -      -       -      +
    227A  LEU*     4.2    22.2    -      -       +      +
    261A  VAL*     4.0    14.8    -      -       +      -
    264A  ARG*     3.1    24.5    +      -       -      +
    265A  VAL*     5.8     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  LEU*     3.2    19.6    +      -       -      +
    218A  SER*     3.0    10.0    +      -       -      +
    220A  VAL*     1.3    78.2    -      -       -      +
    222A  ASP*     1.3    67.3    -      -       -      +
    224A  GLY*     3.8     6.1    +      -       -      -
    259A  SER*     5.6     4.8    +      -       -      -
    261A  VAL*     4.0    27.2    -      -       +      +
    264A  ARG*     3.7    12.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  SER*     3.0    32.2    +      -       -      +
    219A  PHE*     3.2     8.3    +      -       +      +
    221A  GLU*     1.3    86.8    -      -       -      +
    223A  LYS*     1.3    69.4    +      -       +      +
    224A  GLY      3.5     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  GLU*     3.3    17.6    +      -       -      -
    182A  TYR*     3.2    44.2    +      -       +      +
    183A  GLN*     5.4     0.8    -      -       -      +
    219A  PHE*     3.0    53.9    +      -       +      +
    221A  GLU      3.3     0.2    -      -       -      -
    222A  ASP*     1.3    88.8    -      -       +      +
    224A  GLY*     1.3    64.8    +      -       -      +
    225A  ILE*     3.4    28.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  VAL      3.1     5.0    +      -       -      -
    221A  GLU      3.8     4.6    +      -       -      -
    222A  ASP      3.5     2.6    -      -       -      -
    223A  LYS*     1.3    79.8    -      -       -      +
    225A  ILE*     1.3    59.0    +      -       -      +
    226A  HIS*     5.5     1.4    +      -       -      -
    264A  ARG*     2.6    25.8    +      -       -      -
----------------------------------------------------------
 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