Contacts of the helix formed by residues 204 - 221 (chain A) in PDB entry 1U5Q


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 GLY 204 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  HIS*     3.0    48.0    +      -       -      -
    147A  MET      4.8     0.2    -      -       -      -
    148A  ILE*     3.9    18.1    -      -       -      +
    177A  ALA*     4.9     4.0    -      -       -      +
    203A  ASP*     1.3    74.8    -      -       -      +
    205A  LYS*     1.3    57.2    +      -       -      +
    206A  VAL      3.1     1.6    -      -       -      -
    207A  ASP*     2.9    18.0    +      -       -      +
    208A  VAL      3.6     0.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  GLU*     4.3     3.4    -      -       -      +
    203A  ASP*     2.9    25.5    -      -       +      +
    204A  GLY*     1.3    76.3    -      -       -      +
    206A  VAL*     1.3    60.3    +      -       -      +
    208A  VAL*     2.8    26.3    +      -       -      +
    209A  TRP      3.0     4.9    +      -       -      -
    266A  PRO*     2.9    36.9    +      -       +      +
    267A  GLN*     4.1     9.9    +      -       -      +
    269A  ARG*     3.0    45.4    +      -       +      +
    270A  PRO      4.1    11.7    -      -       -      +
    271A  THR*     4.0    29.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  ILE*     3.6    20.0    -      -       +      -
    150A  ARG*     4.7     6.3    -      -       +      -
    190A  ALA*     3.9     6.4    +      -       +      +
    192A  GLU*     3.4    31.9    -      -       +      +
    193A  VAL*     3.6    17.7    -      -       +      -
    202A  TYR*     3.5    22.0    -      -       +      -
    203A  ASP      3.2    20.9    -      -       -      +
    205A  LYS*     1.3    78.4    -      -       -      +
    207A  ASP*     1.3    63.1    +      -       -      +
    209A  TRP*     3.4     5.1    +      -       -      +
    210A  SER*     3.0    29.0    +      -       -      +
    269A  ARG*     3.7     6.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LEU*     3.7    16.8    -      -       +      +
    143A  HIS*     3.0    26.5    +      -       +      +
    148A  ILE*     3.5     7.5    -      -       -      +
    149A  HIS*     2.8    31.9    +      -       -      +
    150A  ARG*     2.7    30.4    +      -       -      -
    152A  VAL*     4.0     6.1    -      -       +      +
    204A  GLY      2.9    10.0    +      -       -      +
    206A  VAL*     1.3    77.5    -      -       -      +
    208A  VAL*     1.3    60.3    +      -       -      +
    209A  TRP      3.2     0.4    -      -       -      -
    210A  SER*     3.7     7.7    +      -       -      -
    211A  LEU*     2.8    29.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  LEU*     5.4     2.0    -      -       +      -
    139A  LEU*     5.3     1.1    -      -       +      -
    143A  HIS*     4.6     2.2    -      -       +      -
    204A  GLY      4.3     3.1    -      -       -      +
    205A  LYS*     2.8    21.0    +      -       -      +
    207A  ASP*     1.3    79.0    -      -       -      +
    209A  TRP*     1.3    59.9    +      -       -      +
    211A  LEU*     3.2     9.3    +      -       -      +
    212A  GLY      2.9    17.2    +      -       -      -
    261A  CYS*     3.3    22.1    -      -       -      +
    269A  ARG*     3.9     7.6    -      -       +      -
    270A  PRO*     3.6    17.3    -      -       +      +
    272A  SER*     3.6    39.5    -      -       -      +
    275A  LEU*     3.4    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  TYR      5.4     0.6    +      -       -      -
    188A  TRP      3.5    11.2    -      -       -      -
    189A  MET      3.4    11.7    +      -       -      -
    190A  ALA*     3.4    25.6    -      -       +      -
    191A  PRO*     3.8    28.0    -      -       +      -
    205A  LYS      3.0     5.1    +      -       -      -
    206A  VAL      3.4     7.6    -      -       -      +
    208A  VAL*     1.3    76.2    -      -       -      +
    210A  SER*     1.3    58.7    +      -       -      +
    212A  GLY*     2.7    22.7    +      -       -      -
    213A  ILE*     2.9    31.6    +      -       +      +
    237A  ILE*     4.3    14.1    -      -       +      +
    242A  SER*     3.6    21.8    -      -       -      -
    243A  PRO*     4.5     9.9    -      -       +      -
    261A  CYS      3.5    12.5    +      -       -      -
    262A  LEU*     3.1    53.7    -      -       +      +
    263A  GLN      3.6    15.9    -      -       -      -
    264A  LYS*     4.0     8.7    -      -       +      -
    269A  ARG*     3.8    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ARG*     5.3     5.0    +      -       -      -
    151A  ASP*     5.6     0.2    -      -       -      -
    152A  VAL*     3.6    33.4    +      -       -      +
    188A  TRP*     2.8    27.9    +      -       -      +
    189A  MET*     4.5     3.5    -      -       -      -
    190A  ALA      4.7     0.3    +      -       -      -
    206A  VAL*     3.0    18.4    +      -       -      +
    207A  ASP*     3.8     7.5    +      -       -      -
    209A  TRP*     1.3    75.7    -      -       -      +
    211A  LEU*     1.3    57.6    +      -       -      +
    213A  ILE*     3.2     5.7    +      -       -      +
    214A  THR*     2.9    31.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  THR*     4.2    30.1    -      -       +      +
    135A  ALA*     4.2    23.6    -      -       +      -
    136A  LEU*     4.0    30.1    -      -       +      -
    139A  LEU*     4.2    13.5    -      -       +      -
    152A  VAL*     4.0    15.7    -      -       +      +
    157A  ILE*     4.7     3.6    -      -       +      -
    207A  ASP      2.8    18.6    +      -       -      +
    208A  VAL*     3.4     7.2    -      -       -      +
    210A  SER*     1.3    78.7    -      -       -      +
    212A  GLY*     1.3    56.6    +      -       -      +
    214A  THR*     3.1     9.4    +      -       +      -
    215A  CYS*     2.8    32.0    +      -       -      -
    257A  PHE*     4.3    10.3    -      -       +      -
    261A  CYS*     4.8     3.6    -      -       -      -
    275A  LEU*     5.4     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  VAL      2.9     7.5    +      -       -      -
    209A  TRP      2.7    15.2    +      -       -      -
    211A  LEU*     1.3    71.2    -      -       -      +
    213A  ILE*     1.3    60.7    +      -       -      -
    215A  CYS*     3.1    17.8    +      -       -      +
    216A  ILE*     3.3    15.6    +      -       -      +
    258A  VAL*     4.3     5.5    -      -       -      +
    261A  CYS*     3.6    25.1    -      -       -      +
    262A  LEU*     4.1    11.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  TYR      3.7    14.8    -      -       -      +
    188A  TRP*     3.5    25.6    -      -       +      +
    209A  TRP*     2.9    39.6    +      -       +      +
    210A  SER      3.2     7.6    +      -       -      +
    212A  GLY*     1.3    74.0    -      -       -      +
    214A  THR*     1.3    56.5    +      -       -      +
    216A  ILE*     3.1     8.5    +      -       +      +
    217A  GLU*     2.9    24.9    +      -       -      +
    223A  PRO*     3.6    21.4    -      -       +      +
    224A  PRO*     4.0    10.3    -      -       +      -
    243A  PRO*     4.0    17.7    -      -       +      -
    262A  LEU*     3.7    25.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152A  VAL*     3.7     4.5    +      -       -      +
    153A  LYS*     3.2    23.0    +      -       -      -
    154A  ALA*     3.5    28.5    -      -       +      +
    157A  ILE*     3.7    22.9    -      -       +      -
    188A  TRP*     3.7     1.4    -      -       -      +
    210A  SER      2.9    20.7    +      -       -      -
    211A  LEU*     3.1    13.9    +      -       +      -
    213A  ILE*     1.3    77.5    -      -       -      +
    215A  CYS*     1.3    59.6    +      -       -      +
    217A  GLU*     3.1    10.3    +      -       -      +
    218A  LEU*     2.8    37.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  ILE*     4.8     0.2    -      -       -      -
    132A  THR*     3.5    38.1    -      -       -      -
    211A  LEU*     2.8    19.5    +      -       -      -
    212A  GLY*     3.3    10.3    -      -       -      +
    214A  THR*     1.3    77.7    -      -       -      +
    216A  ILE*     1.3    61.5    +      -       -      +
    218A  LEU*     3.3    10.7    +      -       -      +
    219A  ALA*     3.0    23.0    +      -       -      +
    254A  PHE*     3.7    16.9    -      -       +      -
    257A  PHE*     3.9    19.7    -      -       -      -
    258A  VAL*     3.7    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  GLY      3.3     7.4    +      -       -      +
    213A  ILE*     3.1     9.0    +      -       +      +
    215A  CYS*     1.3    73.4    -      -       -      +
    217A  GLU*     1.3    56.3    +      -       -      +
    219A  ALA*     2.9     1.6    +      -       -      +
    220A  GLU*     2.6    67.8    +      -       -      +
    222A  LYS      4.2     3.4    -      -       -      +
    224A  PRO*     3.9    29.6    -      -       +      -
    243A  PRO*     4.3     0.4    -      -       +      -
    244A  ALA      3.8    24.0    -      -       -      +
    245A  LEU*     4.1    16.2    -      -       +      +
    258A  VAL*     3.9    12.6    -      -       +      -
    262A  LEU*     3.7    27.8    -      -       +      -
     84B  ARG*     3.6     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  SER*     4.8     5.4    +      -       -      -
    116A  LEU*     3.5     9.3    -      -       +      +
    153A  LYS*     5.1     0.2    -      -       -      +
    154A  ALA*     3.0    36.1    +      -       -      +
    155A  GLY      4.6     2.3    +      -       -      -
    188A  TRP*     2.8    44.0    +      -       -      +
    213A  ILE      2.9    12.1    +      -       -      +
    214A  THR*     3.1     8.6    +      -       -      +
    216A  ILE*     1.3    76.7    -      -       -      +
    218A  LEU*     1.3    56.2    +      -       -      +
    221A  ARG*     2.6    46.9    +      -       -      +
    222A  LYS*     3.4    22.4    +      -       -      -
    223A  PRO*     4.1     3.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  ALA*     3.7    27.6    -      -       +      -
    116A  LEU*     3.7    13.2    -      -       +      +
    122A  PRO*     3.5     4.3    -      -       -      +
    123A  LEU*     3.1    39.9    +      -       +      -
    128A  ILE*     3.8    32.0    -      -       +      +
    131A  VAL*     3.8    28.0    -      -       +      -
    132A  THR*     4.3     7.4    -      -       -      +
    154A  ALA*     3.8    14.8    -      -       +      -
    157A  ILE*     5.5     0.4    -      -       +      -
    214A  THR*     2.8    30.0    +      -       +      +
    215A  CYS*     3.7     6.5    -      -       -      +
    216A  ILE      3.2     0.2    -      -       -      -
    217A  GLU*     1.3    77.5    -      -       -      +
    219A  ALA*     1.3    59.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  PRO*     2.9    24.3    -      -       -      +
    128A  ILE*     3.7    13.2    -      -       +      -
    215A  CYS      3.0    16.6    +      -       -      +
    216A  ILE      2.9     2.3    +      -       -      +
    218A  LEU*     1.3    77.4    -      -       -      +
    220A  GLU*     1.3    61.1    +      -       +      +
    245A  LEU*     3.5    27.4    -      -       +      -
    250A  TRP*     3.5    28.5    -      -       +      +
    254A  PHE*     4.0     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  PRO*     4.2     3.4    -      -       -      -
    216A  ILE*     2.6    31.0    +      -       -      +
    219A  ALA*     1.3    84.7    -      -       +      +
    221A  ARG*     1.3    67.9    +      -       -      +
    222A  LYS*     3.1    16.4    +      -       -      +
    245A  LEU*     3.5    10.6    -      -       -      +
    246A  GLN*     2.9    53.2    +      -       +      +
    247A  SER      4.6     0.7    +      -       -      -
    250A  TRP*     5.1     4.0    +      -       -      +
     84B  ARG*     2.9    24.6    +      -       -      -
     90B  GLN*     4.8    11.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  LEU*     4.1    26.0    +      -       +      +
    117A  GLU*     5.4     1.8    -      -       -      +
    120A  LYS*     3.2    39.4    +      -       -      +
    121A  LYS*     3.8    32.5    -      -       -      +
    122A  PRO*     4.0     8.5    -      -       +      -
    217A  GLU*     2.6    30.7    +      -       -      +
    218A  LEU      4.4     0.6    -      -       -      -
    219A  ALA      3.8     0.6    -      -       -      -
    220A  GLU*     1.3    75.0    -      -       -      +
    222A  LYS*     1.3    70.7    +      -       +      +
     52B  GLU*     2.6    43.4    +      -       -      -
     92B  ARG*     5.5     4.2    -      -       -      +
----------------------------------------------------------
 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