Contacts of the helix formed by residues 138 - 162 (chain B) in PDB entry 1YWT


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 138 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  GLY*     1.3    71.0    -      -       -      +
    139B  ASP*     1.3    66.3    +      -       -      +
    140B  LYS      3.0     2.3    -      -       -      +
    141B  LYS*     3.2    41.5    +      -       -      +
    142B  ARG*     3.0    23.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 139 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  ALA*     4.4     7.2    -      -       +      -
    136B  THR*     3.5    10.2    +      -       -      +
    137B  GLY      2.6    15.4    +      -       -      +
    138B  ASP*     1.3    75.3    -      -       -      +
    140B  LYS*     1.3    60.7    +      -       -      +
    142B  ARG*     3.5    28.3    +      -       -      +
    143B  ILE*     3.0    34.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 140 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132B  ALA*     3.5    24.7    -      -       -      +
    133B  GLU*     5.3     4.1    +      -       -      +
    135B  ALA*     3.3    28.5    +      -       +      +
    136B  THR*     3.3    20.6    +      -       -      -
    137B  GLY*     4.1     4.7    -      -       -      +
    138B  ASP      4.6     0.2    -      -       -      +
    139B  ASP*     1.3    77.2    -      -       -      +
    141B  LYS*     1.3    58.3    +      -       +      +
    143B  ILE*     3.2     3.3    +      -       -      +
    144B  ILE*     2.7    60.2    +      -       +      +
    183B  ILE*     5.5     7.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 141 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  GLY*     5.4     1.8    -      -       -      -
    138B  ASP*     3.2    43.3    +      -       -      +
    140B  LYS*     1.3    79.1    -      -       +      +
    142B  ARG*     1.3    62.1    +      -       -      +
    144B  ILE*     4.3     8.3    -      -       +      -
    145B  ASP*     2.6    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 142 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  ASP      3.0    15.2    +      -       -      +
    139B  ASP*     3.7    39.2    +      -       -      +
    141B  LYS*     1.3    75.7    -      -       -      +
    143B  ILE*     1.3    91.3    +      -       -      +
    145B  ASP*     3.3     5.9    +      -       -      +
    146B  SER*     3.1    23.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 143 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  GLN*     6.4     0.2    -      -       -      +
    128B  TYR*     3.1    39.0    -      -       +      +
    131B  LEU*     3.9    22.4    -      -       +      +
    132B  ALA*     3.5    12.6    -      -       +      +
    135B  ALA*     3.8    21.5    -      -       +      -
    139B  ASP*     3.0    20.9    +      -       +      +
    140B  LYS*     3.6     3.8    -      -       -      +
    142B  ARG*     1.3   100.3    -      -       -      +
    144B  ILE*     1.3    63.3    +      -       -      +
    146B  SER*     2.8    20.5    +      -       -      -
    147B  ALA*     3.0    11.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 144 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132B  ALA*     4.0     9.9    -      -       +      -
    140B  LYS*     2.7    45.5    +      -       +      +
    141B  LYS*     3.8     7.4    -      -       +      +
    143B  ILE*     1.3    72.9    -      -       -      +
    145B  ASP*     1.3    66.6    +      -       -      +
    147B  ALA*     3.3     7.8    +      -       -      +
    148B  ARG*     3.1    32.9    +      -       -      +
    179B  PHE*     3.6    21.9    -      -       +      -
    183B  ILE*     3.6    36.3    -      -       +      +
    184B  ALA*     5.1     6.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 145 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141B  LYS*     2.6    29.6    +      -       -      +
    142B  ARG*     3.8     4.9    -      -       -      +
    144B  ILE*     1.3    82.1    -      -       -      +
    146B  SER*     1.3    64.1    +      -       -      +
    148B  ARG*     3.5    14.7    +      -       -      +
    149B  SER*     3.2    23.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 146 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  LYS*     5.4     1.4    -      -       -      -
    128B  TYR*     3.1    40.8    -      -       -      -
    142B  ARG*     3.1    14.7    +      -       -      +
    143B  ILE*     2.8    20.4    +      -       -      -
    145B  ASP*     1.3    76.5    -      -       -      +
    147B  ALA*     1.3    60.7    +      -       -      +
    149B  SER*     3.2    16.4    +      -       -      -
    150B  ALA*     3.5    12.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 147 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125B  GLY*     3.8    14.3    -      -       -      +
    128B  TYR*     3.5    22.2    -      -       +      -
    129B  ARG*     4.0     6.5    -      -       -      +
    132B  ALA*     5.8     0.2    -      -       +      -
    143B  ILE      3.0    12.9    +      -       -      +
    144B  ILE*     3.4    11.7    -      -       -      +
    145B  ASP      3.2     0.2    -      -       -      -
    146B  SER*     1.3    78.9    +      -       -      +
    148B  ARG*     1.3    58.9    +      -       -      +
    150B  ALA*     3.3     4.5    +      -       -      +
    151B  TYR*     3.1    32.7    +      -       +      -
    179B  PHE*     3.9    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 148 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144B  ILE*     3.1    26.1    +      -       -      +
    145B  ASP*     4.0    14.2    +      -       -      +
    147B  ALA*     1.3    75.4    -      -       -      +
    149B  SER*     1.3    60.6    +      -       -      +
    151B  TYR*     3.2     5.4    +      -       -      +
    152B  GLN*     2.7    33.9    +      -       +      +
    176B  PHE*     4.4     9.8    -      -       +      -
    179B  PHE*     3.7    34.1    -      -       +      -
    180B  HIS*     3.8    27.9    +      -       -      -
    184B  ALA*     3.9    16.4    -      -       -      +
    186B  SER*     4.9     1.2    +      -       -      -
    189B  GLU*     4.5    11.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 149 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  ASP      3.2    12.6    +      -       -      -
    146B  SER*     3.2    15.4    +      -       -      -
    148B  ARG*     1.3    79.8    -      -       -      +
    150B  ALA*     1.3    59.1    +      -       -      +
    152B  GLN*     4.0     5.3    -      -       -      +
    153B  GLU*     3.0    32.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 150 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  LEU*     3.7    29.3    -      -       +      +
    124B  LYS*     3.9    21.1    -      -       +      -
    125B  GLY*     3.8    11.0    -      -       -      +
    146B  SER      3.5    10.3    +      -       -      +
    147B  ALA      3.3     9.6    +      -       -      +
    148B  ARG      3.1     0.4    -      -       -      -
    149B  SER*     1.3    80.4    +      -       -      +
    151B  TYR*     1.3    65.7    +      -       -      +
    153B  GLU*     3.4     5.8    +      -       -      +
    154B  ALA*     3.0    23.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 151 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  LYS*     3.7    15.7    -      -       +      -
    125B  GLY*     3.3    21.1    -      -       -      -
    126B  ASP*     2.5    35.2    +      -       -      -
    129B  ARG*     2.9    21.8    +      -       +      -
    147B  ALA      3.1    25.0    +      -       -      +
    148B  ARG      3.7     0.7    -      -       -      +
    150B  ALA*     1.3    76.0    -      -       -      +
    152B  GLN*     1.3    53.2    +      -       -      +
    154B  ALA*     3.1     6.5    +      -       -      +
    155B  MET*     2.8    36.1    +      -       -      +
    172B  LEU*     3.7    23.0    -      -       +      +
    175B  ASN*     4.0    15.1    -      -       +      +
    176B  PHE*     3.6    37.0    -      +       +      -
    179B  PHE*     3.9    28.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 152 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  ARG*     2.7    26.9    +      -       +      +
    149B  SER*     4.0     6.1    -      -       -      +
    151B  TYR*     1.3    74.4    -      -       -      +
    153B  GLU*     1.3    57.3    +      -       -      +
    155B  MET*     3.1    15.9    +      -       -      +
    156B  ASP*     2.8    64.1    +      -       -      +
    176B  PHE*     3.8    21.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 153 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  LEU*     4.0    28.1    -      -       +      +
    149B  SER      3.0    20.6    +      -       -      +
    150B  ALA*     3.9     5.0    -      -       -      +
    151B  TYR      3.3     0.2    -      -       -      -
    152B  GLN*     1.3    74.9    -      -       -      +
    154B  ALA*     1.3    60.2    +      -       -      +
    156B  ASP*     3.5    10.3    +      -       +      +
    157B  ILE*     3.2    35.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 154 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  VAL*     3.7    18.3    -      -       +      +
    121B  LEU*     3.7    23.8    -      -       +      +
    122B  LYS      4.1     2.5    -      -       -      +
    150B  ALA      3.0    13.8    +      -       -      +
    151B  TYR      3.4     6.3    -      -       -      +
    153B  GLU*     1.3    76.8    -      -       -      +
    155B  MET*     1.3    58.9    +      -       -      +
    157B  ILE*     3.5     4.0    +      -       -      +
    158B  SER*     3.0    26.9    +      -       -      -
    172B  LEU*     3.3    27.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 155 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151B  TYR      2.8    13.1    +      -       -      +
    152B  GLN*     3.3    21.3    -      -       -      +
    154B  ALA*     1.3    75.5    -      -       -      +
    156B  ASP*     1.3    65.3    +      -       -      +
    158B  SER*     2.8    22.5    +      -       -      -
    159B  LYS*     3.1    46.2    +      -       +      +
    169B  ARG*     5.3     1.8    -      -       -      +
    172B  LEU*     3.4    34.1    -      -       +      +
    173B  ALA*     3.9    20.0    -      -       -      +
    176B  PHE*     3.4    30.5    -      -       +      -
    193B  LEU*     4.5    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 156 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  GLN*     2.8    49.3    +      -       -      +
    153B  GLU*     3.8    10.3    -      -       +      +
    155B  MET*     1.3    76.9    -      -       -      +
    157B  ILE*     1.3    63.8    +      -       +      +
    159B  LYS*     3.6     6.0    +      -       -      +
    160B  LYS*     3.5    21.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 157 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114B  ALA*     4.2     3.6    -      -       +      +
    117B  ARG*     3.6    41.7    -      -       +      +
    118B  VAL*     3.5    19.1    -      -       +      -
    121B  LEU*     3.9    22.9    -      -       +      -
    153B  GLU*     3.2    25.7    +      -       +      +
    154B  ALA*     3.8     5.4    -      -       -      +
    155B  MET      3.2     0.6    -      -       -      -
    156B  ASP*     1.3    78.9    -      -       +      +
    158B  SER*     1.3    58.3    +      -       -      +
    160B  LYS*     3.5     2.1    +      -       -      -
    161B  GLU*     2.9    45.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 158 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  VAL*     4.4     2.5    -      -       -      -
    154B  ALA      3.0    14.7    +      -       -      -
    155B  MET*     2.8    26.7    +      -       -      +
    157B  ILE*     1.3    78.9    -      -       -      +
    159B  LYS*     1.3    59.6    +      -       -      +
    162B  MET*     2.8    60.3    +      -       -      +
    169B  ARG*     3.6    25.8    +      -       -      +
    172B  LEU*     3.8     7.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 159 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155B  MET*     3.1    44.1    +      -       +      +
    156B  ASP*     4.1     5.4    -      -       -      +
    158B  SER*     1.3    77.4    -      -       -      +
    160B  LYS*     1.3    58.6    +      -       -      +
    162B  MET      4.6     1.9    -      -       -      +
    169B  ARG*     3.9    33.6    +      -       -      +
    193B  LEU*     5.4     7.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 160 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  ASP      3.5    14.3    +      -       -      +
    157B  ILE*     3.5     3.9    +      -       -      +
    158B  SER      3.2     0.2    -      -       -      -
    159B  LYS*     1.3    82.0    -      -       -      +
    161B  GLU*     1.3    77.0    +      -       +      +
    162B  MET      3.8     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 161 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114B  ALA*     3.4    35.1    +      -       +      +
    117B  ARG*     3.6    11.5    +      -       -      +
    157B  ILE*     2.9    28.5    +      -       +      +
    160B  LYS*     1.3   107.4    -      -       +      +
    162B  MET*     1.3    63.0    +      -       +      +
    163B  PRO*     4.5     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 162 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114B  ALA*     4.9     2.2    -      -       +      +
    115B  GLU*     3.4    42.2    -      -       +      -
    118B  VAL*     4.0    12.1    -      -       +      -
    158B  SER*     2.8    40.9    +      -       -      +
    159B  LYS      4.6     2.3    -      -       -      +
    160B  LYS      3.8     0.4    -      -       -      -
    161B  GLU*     1.3    86.4    -      -       +      +
    163B  PRO*     1.3    64.5    -      -       +      +
    164B  PRO*     4.3     0.2    -      -       -      +
    166B  ASN*     3.2    35.9    -      -       +      +
    168B  ILE*     3.8    14.4    -      -       +      -
    169B  ARG*     2.5    38.1    +      -       -      -
----------------------------------------------------------
 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