Contacts of the helix formed by residues 24 - 38 (chain D) in PDB entry 2UZ3


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 24 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  ARG*     3.8    16.9    -      -       -      -
     34C  HIS*     6.4     2.0    -      -       -      -
     35C  ARG*     4.9     1.3    -      -       -      +
     22D  PHE      3.6     1.4    -      -       -      -
     23D  ALA*     1.3    79.4    -      -       -      +
     25D  LYS*     1.3    60.0    +      -       -      +
     26D  THR      3.4     1.8    -      -       -      -
     27D  ALA*     3.4    11.6    +      -       -      +
     28D  GLU*     2.9    29.8    +      -       -      +
    149D  LEU*     3.9     2.2    -      -       -      -
   4220D  TTP      2.9    13.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  ILE*     4.0     7.3    -      -       +      +
     18D  THR*     3.6    22.9    -      -       -      +
     19D  GLY      3.6    13.9    -      -       -      +
     20D  PRO      2.8    24.6    +      -       -      +
     23D  ALA*     4.4     4.0    -      -       +      -
     24D  GLY*     1.3    72.2    -      -       -      +
     26D  THR*     1.3    57.7    +      -       -      +
     28D  GLU*     3.2     4.9    +      -       -      +
     29D  LEU*     2.9    28.1    +      -       -      +
    122D  SER*     3.6    15.4    +      -       -      +
    123D  GLY*     3.5    38.4    -      -       -      +
    124D  LEU*     3.4     3.3    -      -       -      +
    149D  LEU*     3.7    14.8    -      -       +      -
   4220D  TTP      2.7    59.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25D  LYS*     1.3    72.1    -      -       -      +
     27D  ALA*     1.3    55.9    +      -       -      +
     29D  LEU*     3.2     7.0    +      -       -      +
     30D  ILE*     2.8    48.1    +      -       +      +
     58D  ILE*     4.3     4.9    -      -       +      -
     59D  GLN      3.5    31.0    -      -       -      +
     60D  SER*     5.5     0.2    -      -       -      -
     96D  ASP*     2.9    27.7    +      -       -      +
    122D  SER*     4.6     0.8    +      -       -      -
   4219D   MG      2.2    31.8    -      -       -      -
   4220D  TTP      3.0     6.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  ALA*     5.8     0.7    -      -       -      +
     31C  ARG*     4.0    18.2    -      -       +      -
     24D  GLY*     3.4    14.9    -      -       -      +
     26D  THR*     1.3    77.6    -      -       -      +
     28D  GLU*     1.3    55.9    +      -       -      +
     30D  ILE*     3.2     2.6    +      -       -      +
     31D  ARG*     2.8    29.7    +      -       -      +
     60D  SER*     3.5    19.6    -      -       -      +
     61D  ARG      5.5     0.4    -      -       -      +
     62D  THR*     3.8    21.0    +      -       -      +
   4220D  TTP      5.6     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  GLU*     3.8    13.3    -      -       -      +
     31C  ARG*     4.5     6.9    -      -       -      +
     17D  ILE*     3.7    23.6    -      -       +      -
     24D  GLY      2.9    13.2    +      -       -      +
     25D  LYS      3.2     7.8    +      -       -      +
     27D  ALA*     1.3    73.8    -      -       -      +
     29D  LEU*     1.3    64.7    +      -       -      +
     31D  ARG*     2.7    38.2    +      -       -      +
     32D  ARG*     2.6    54.0    +      -       -      +
    147D  THR*     5.4     1.5    -      -       +      +
    149D  LEU*     4.1    17.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 29 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  ILE*     3.8    11.8    -      -       +      +
     25D  LYS      2.9    13.7    +      -       -      +
     26D  THR      3.6     6.5    -      -       -      +
     28D  GLU*     1.3    74.5    -      -       -      +
     30D  ILE*     1.3    64.0    +      -       -      +
     32D  ARG*     3.3     4.7    +      -       -      +
     33D  LEU*     3.1    42.8    +      -       +      +
     45D  VAL*     4.8     3.6    -      -       +      -
     58D  ILE*     3.6    26.5    -      -       +      -
     94D  GLY*     4.5     1.1    -      -       -      -
     95D  ILE      4.7     1.1    -      -       -      +
     96D  ASP*     3.8    32.1    -      -       +      +
    120D  ILE*     3.5    47.3    -      -       +      +
    121D  ILE      4.5     0.4    -      -       -      +
    122D  SER*     4.2    10.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 30 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  THR*     2.8    30.9    +      -       +      +
     27D  ALA      3.6     3.8    -      -       -      +
     29D  LEU*     1.3    71.8    -      -       -      +
     31D  ARG*     1.3    54.6    +      -       -      +
     33D  LEU*     3.2     2.3    +      -       -      +
     34D  HIS*     2.7    35.1    +      -       +      +
     58D  ILE*     3.7    31.6    -      -       +      +
     59D  GLN*     3.6     7.2    -      -       -      +
     60D  SER*     3.4    35.2    -      -       -      +
     64D  THR*     3.7    38.4    -      -       +      +
     66D  LEU*     3.9    18.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 31 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  ALA      3.2    20.6    +      -       -      +
     24C  GLY*     3.8    28.4    -      -       -      +
     27C  ALA*     4.2    14.1    -      -       +      -
     28C  GLU*     4.4    13.2    -      -       -      +
    149C  LEU*     3.2    38.7    -      -       -      +
    150C  THR      4.2     0.8    +      -       -      +
     27D  ALA      2.8    19.7    +      -       -      +
     28D  GLU*     2.7    46.6    +      -       -      +
     30D  ILE*     1.3    75.5    -      -       -      +
     32D  ARG*     1.3    74.2    +      -       -      +
     34D  HIS*     3.3     6.2    +      -       -      +
     35D  ARG*     3.3    47.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 32 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  GLU*     2.7    50.5    +      -       -      +
     16D  PHE      5.2     0.8    +      -       -      +
     17D  ILE*     3.6    27.6    -      -       -      +
     28D  GLU*     2.6    35.5    +      -       -      +
     29D  LEU*     3.8     5.8    -      -       -      +
     31D  ARG*     1.3    87.3    -      -       -      +
     33D  LEU*     1.3    62.4    +      -       -      +
     35D  ARG*     3.4    39.1    +      -       -      +
     36D  LEU*     3.9     9.0    -      -       -      +
    120D  ILE*     4.1    17.3    -      -       +      +
    145D  LYS*     4.3    13.5    -      -       -      +
    147D  THR*     2.9    37.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 33 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29D  LEU*     3.1    42.6    +      -       +      +
     32D  ARG*     1.3    75.5    -      -       -      +
     34D  HIS*     1.3    63.5    +      -       -      +
     36D  LEU*     3.1    28.2    +      -       +      +
     37D  GLU      3.9     0.5    +      -       -      -
     43D  TYR*     3.8    27.3    -      -       +      -
     45D  VAL*     3.7    28.3    -      -       +      -
     58D  ILE*     4.9     1.1    -      -       +      -
     66D  LEU*     3.8    20.4    -      -       +      -
     92D  VAL*     3.7    29.6    -      -       +      -
     94D  GLY*     4.5    10.1    -      -       -      -
    120D  ILE*     4.1    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 34 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  ILE*     2.7    25.0    +      -       +      +
     31D  ARG*     3.7     7.9    -      -       -      +
     33D  LEU*     1.3    74.0    -      -       -      +
     35D  ARG*     1.3    60.9    +      -       -      +
     37D  GLU*     3.0    50.7    +      -       -      +
     38D  TYR*     3.6    39.7    +      +       -      -
     64D  THR*     4.0    33.4    +      -       +      +
     66D  LEU*     4.2     5.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 35 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22C  PHE*     3.7    24.6    -      -       -      +
     23C  ALA      3.8    15.7    -      -       -      +
     24C  GLY*     5.5     0.2    -      -       -      -
    150C  THR*     3.3    41.3    +      -       -      +
    151C  ALA*     4.4     1.4    +      -       -      +
    152C  ILE*     3.0    49.6    +      -       +      +
    159C  GLU*     4.7     9.1    +      -       -      +
     31D  ARG*     3.4    31.4    -      -       -      +
     32D  ARG*     3.4    27.5    +      -       -      +
     33D  LEU      3.2     0.2    -      -       -      -
     34D  HIS*     1.3    77.2    -      -       -      +
     36D  LEU*     1.3    62.4    +      -       -      +
     37D  GLU      3.3     0.7    +      -       -      -
     38D  TYR*     3.4    17.1    +      -       -      +
     39D  ALA      4.0     2.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 36 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152C  ILE*     3.8    29.6    -      -       +      -
     32D  ARG      3.9     8.3    -      -       -      +
     33D  LEU*     3.1    24.9    +      -       +      +
     35D  ARG*     1.3    77.2    -      -       -      +
     37D  GLU*     1.3    61.9    +      -       -      +
     39D  ALA*     3.2     4.2    +      -       -      -
     40D  ASP      3.1     3.6    +      -       -      -
     41D  VAL*     2.8    59.6    +      -       +      +
     43D  TYR*     3.9    16.4    -      -       +      -
     92D  VAL*     3.6    41.1    -      -       +      -
    120D  ILE*     5.4     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 37 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  LEU      4.5     0.2    -      -       -      +
     34D  HIS*     3.0    40.9    +      -       +      +
     36D  LEU*     1.3    78.6    -      -       -      +
     38D  TYR*     1.3    62.1    +      -       +      +
     40D  ASP*     3.0    18.6    +      -       -      +
     41D  VAL      4.7     2.7    -      -       -      +
     43D  TYR*     2.7    42.1    +      -       +      -
     66D  LEU*     3.7     9.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 38 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22C  PHE*     3.7    55.0    -      +       +      -
    152C  ILE      5.4     2.0    -      -       -      +
    154C  ASN*     3.2    16.1    +      -       -      +
    184C  GLN*     3.6    41.2    -      -       -      +
     34D  HIS*     3.6    48.3    +      +       -      -
     35D  ARG*     3.4    12.8    +      -       -      +
     36D  LEU      3.3     0.8    -      -       -      -
     37D  GLU*     1.3    80.0    -      -       +      +
     39D  ALA*     1.3    57.1    +      -       -      +
     40D  ASP      3.4     0.7    -      -       -      -
----------------------------------------------------------
 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