Contacts of the helix formed by residues 90 - 105 (chain A) in PDB entry 4UTX


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 90 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  ALA      2.7    15.9    +      -       -      +
     89A  ARG*     1.3    86.8    -      -       +      +
     91A  PRO*     1.3    67.3    -      -       -      +
     92A  SER*     3.8     7.6    +      -       -      -
     93A  LEU*     3.1    42.1    +      -       +      +
     94A  VAL*     3.1    14.9    +      -       +      +
    192A  GLU*     3.4    15.8    -      -       -      +
    194A  ARG*     4.3    23.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  PHE*     3.0    46.2    -      -       +      +
     88A  SER      3.9     5.6    -      -       -      +
     89A  ARG      3.7     4.9    -      -       -      +
     90A  ASP*     1.3    84.8    -      -       -      +
     92A  SER*     1.3    65.7    +      -       -      +
     94A  VAL*     4.1     0.6    -      -       -      +
     95A  TRP*     2.9    29.5    +      -       -      +
    197A  VAL*     4.2    21.3    -      -       +      -
    200A  LEU*     3.8    13.2    -      -       +      -
    211A  LEU*     4.7     5.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ASP*     3.3     7.1    -      -       -      -
     91A  PRO*     1.3    80.0    -      -       -      +
     93A  LEU*     1.3    54.3    +      -       -      +
     95A  TRP*     3.3     1.7    +      -       -      +
     96A  GLU*     2.7    37.8    +      -       -      +
    180A  LEU*     5.0     0.3    -      -       -      +
    193A  ALA*     4.0     4.0    -      -       -      +
    194A  ARG*     3.3    16.4    +      -       -      -
    195A  ILE*     3.0    50.0    +      -       -      +
    200A  LEU*     3.7    14.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  TRP*     3.6    16.8    -      -       +      -
     74A  ARG*     3.5    28.0    -      -       -      +
     76A  TRP*     3.7    33.9    -      -       +      -
     81A  LEU*     4.3    16.1    -      -       +      +
     90A  ASP*     3.1    34.1    +      -       +      +
     92A  SER*     1.3    82.4    -      -       -      +
     94A  VAL*     1.3    63.8    +      -       +      +
     96A  GLU*     3.2    11.0    +      -       -      +
     97A  PHE*     3.1    20.4    +      -       -      +
    192A  GLU*     3.7    15.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  LEU*     3.8    25.6    -      -       +      +
     86A  ALA*     3.6    36.8    -      -       +      +
     87A  PHE*     3.7    27.6    -      -       +      +
     90A  ASP*     3.1    16.3    +      -       +      +
     91A  PRO      4.1     0.2    -      -       -      +
     92A  SER      3.3     0.2    -      -       -      -
     93A  LEU*     1.3    76.0    -      -       +      +
     95A  TRP*     1.3    62.3    +      -       -      +
     97A  PHE*     3.0    12.6    +      -       +      +
     98A  TYR*     2.9    41.5    +      -       +      -
    214A  PRO*     5.6     0.2    -      -       +      -
    218A  TRP*     4.1     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  PHE*     3.6    15.5    -      +       -      -
     91A  PRO      2.9    23.7    +      -       -      +
     92A  SER      3.7     2.2    -      -       -      +
     94A  VAL*     1.3    73.8    -      -       -      +
     96A  GLU*     1.3    66.6    +      -       -      +
     98A  TYR*     4.2    12.8    -      -       +      +
     99A  HIS*     2.7    30.0    +      -       -      +
    102A  ARG*     4.6    10.5    -      -       -      -
    159A  LYS      5.8     0.2    -      -       -      -
    160A  THR*     4.7     5.8    -      -       +      -
    176A  ILE*     3.6    31.9    -      -       +      -
    180A  LEU*     4.2    11.0    -      -       +      -
    200A  LEU*     4.0    31.0    -      -       +      -
    201A  PRO*     4.0    22.4    -      -       +      +
    211A  LEU*     4.6     1.8    -      -       -      +
    212A  LEU*     2.9    32.7    +      -       +      -
    213A  ARG*     3.7    15.7    -      -       -      -
    214A  PRO*     3.8    26.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  TRP*     3.9    10.5    -      -       +      -
     74A  ARG*     2.7    38.4    +      -       -      -
     92A  SER*     2.7    21.9    +      -       -      +
     93A  LEU*     3.4    18.2    -      -       -      +
     95A  TRP*     1.3    73.5    -      -       -      +
     97A  PHE*     1.3    62.2    -      -       -      +
     99A  HIS*     3.2     2.6    +      -       -      +
    100A  TYR*     3.0    17.8    +      -       -      +
    180A  LEU*     4.1    16.1    -      -       +      +
    183A  LYS*     3.9     3.5    -      -       +      +
    184A  GLY*     3.3    24.6    +      -       -      +
    190A  THR*     5.1     0.2    -      -       -      +
    191A  LYS      4.3     2.1    -      -       -      +
    192A  GLU*     3.7     2.8    -      -       -      +
    193A  ALA*     3.0    46.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  PHE*     4.0    24.0    -      +       +      -
     73A  TRP*     3.6    48.2    -      +       +      -
     78A  ALA*     4.5    18.6    -      -       +      -
     81A  LEU*     4.0    28.7    -      -       +      -
     82A  ALA*     4.9     3.6    -      -       +      -
     93A  LEU      3.1    10.7    +      -       -      +
     94A  VAL*     3.0    13.4    +      -       +      +
     96A  GLU*     1.3    74.9    -      -       -      +
     98A  TYR*     1.3    83.5    +      +       -      +
    100A  TYR*     3.3     6.6    -      -       -      +
    101A  ARG*     3.2    56.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ALA*     3.5     7.9    -      -       -      +
     94A  VAL*     2.9    32.6    +      -       +      +
     95A  TRP*     4.1    12.1    -      -       +      +
     97A  PHE*     1.3    87.3    -      +       -      +
     99A  HIS*     1.3    60.3    +      -       -      +
    101A  ARG*     3.2    29.3    +      -       -      +
    102A  ARG*     2.9    37.0    +      -       -      +
    138A  ILE*     4.6     0.2    -      -       +      -
    157A  LEU*     3.5    27.1    -      -       +      -
    214A  PRO*     3.8    26.9    -      -       +      -
    216A  VAL*     3.9     9.8    -      -       +      +
    218A  TRP*     2.9    34.3    +      +       -      -
   1004C  3NP      2.4    27.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TRP*     2.7    22.9    +      -       -      +
     96A  GLU      3.4     4.5    -      -       -      +
     98A  TYR*     1.3    68.7    -      -       -      +
    100A  TYR*     1.3    65.5    +      -       -      +
    102A  ARG*     3.2    14.5    +      -       -      +
    103A  GLU*     2.9    56.1    +      -       +      +
    175A  PRO*     3.6    25.3    -      -       +      +
    176A  ILE*     4.5    12.2    +      -       +      +
    180A  LEU*     3.1    43.2    +      -       +      -
    182A  GLY*     4.0    10.3    +      -       -      -
    183A  LYS*     3.5    24.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  PRO*     5.1     2.6    -      -       +      +
     66A  PHE*     4.1    25.1    -      +       -      -
     73A  TRP*     3.8    20.6    -      +       -      +
     96A  GLU      3.0     7.4    +      -       -      +
     97A  PHE      3.3     9.0    -      -       -      +
     99A  HIS*     1.3    81.2    -      -       -      +
    101A  ARG*     1.3    55.6    +      -       +      +
    103A  GLU*     3.0     7.3    +      -       +      +
    104A  VAL*     2.7    62.6    +      -       +      +
    183A  LYS      5.2     1.6    -      -       -      -
    184A  GLY*     3.4    29.2    -      -       -      +
    185A  ALA*     4.9     0.7    -      -       -      -
    186A  PRO*     3.7    32.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  VAL*     6.1     1.6    -      -       -      +
     64A  PRO*     4.5    12.9    +      -       +      +
     65A  THR*     5.2     3.4    +      -       -      +
     66A  PHE*     3.6    38.7    -      -       +      -
     97A  PHE*     3.2    35.8    +      -       +      +
     98A  TYR*     3.2    39.2    -      -       -      +
     99A  HIS      3.2     0.4    -      -       -      -
    100A  TYR*     1.3    79.1    -      -       +      +
    102A  ARG*     1.3    64.3    +      -       -      +
    104A  VAL*     3.5    13.6    +      -       -      +
    105A  MET*     3.3    18.9    -      -       -      +
    138A  ILE*     3.9    20.1    -      -       -      +
    157A  LEU*     4.0    18.0    -      -       +      +
   1300A  EDO      4.5     8.9    +      -       -      -
   1004C  3NP      3.1    29.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TRP*     4.6    13.2    -      -       -      -
     98A  TYR*     2.9    25.2    +      -       -      +
     99A  HIS*     3.3    13.2    +      -       -      +
    101A  ARG*     1.3    78.8    -      -       -      +
    103A  GLU*     1.3    69.3    +      -       -      +
    105A  MET*     3.3    16.8    +      -       -      +
    106A  ARG*     4.2     5.0    +      -       -      +
    157A  LEU*     2.9    36.8    +      -       +      +
    158A  PHE*     3.3    31.7    -      -       +      +
    159A  LYS      5.6     0.2    +      -       -      -
    160A  THR*     5.6     2.0    -      -       -      +
    171A  ASN*     2.9    44.3    +      -       -      -
    172A  HIS      3.8     1.6    -      -       -      -
    173A  LYS      3.1    24.4    +      -       -      +
    176A  ILE*     3.6    29.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  HIS*     2.9    55.3    +      -       +      +
    100A  TYR*     3.8     5.4    -      -       +      +
    102A  ARG*     1.3    73.8    +      -       -      +
    104A  VAL*     1.3    65.9    +      -       -      +
    105A  MET      2.7     6.9    +      -       -      -
    106A  ARG*     2.9    41.5    +      -       -      +
    107A  SER      4.3     0.5    +      -       -      -
    173A  LYS      4.3     3.8    -      -       -      +
    174A  SER*     2.6    39.5    +      -       -      -
    175A  PRO*     4.4     0.9    -      -       -      +
    176A  ILE      5.1     0.2    +      -       -      -
    298B  GLU*     5.0     3.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  VAL*     5.3     0.7    -      -       +      -
     64A  PRO*     4.2    25.8    -      -       +      -
    100A  TYR*     2.7    66.3    +      -       +      +
    101A  ARG*     3.6    14.6    -      -       -      +
    103A  GLU*     1.3    71.3    -      -       -      +
    105A  MET*     1.3    72.4    +      -       -      +
    106A  ARG      3.3     0.2    -      -       -      -
    107A  SER*     3.2    20.9    +      -       -      +
    108A  LYS*     3.3    20.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  VAL*     4.0    24.0    -      -       +      -
    101A  ARG      3.3    17.0    -      -       -      +
    102A  ARG      3.4     9.6    -      -       -      +
    103A  GLU      2.7     1.6    +      -       -      -
    104A  VAL*     1.3    79.1    -      -       -      +
    106A  ARG*     1.3    66.6    +      -       +      +
    107A  SER      3.0     4.1    +      -       -      -
    108A  LYS*     3.0    27.1    +      -       +      +
    139A  ASP*     3.6    38.8    -      -       +      +
    141A  LEU*     3.8    17.3    -      -       +      -
    144A  ARG*     3.2    27.0    +      -       -      +
    157A  LEU*     4.4     7.0    -      -       +      -
    158A  PHE*     3.9    22.7    -      -       +      -
----------------------------------------------------------
 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