Contacts of the helix formed by residues 32 - 45 (chain T) in PDB entry 5XS0


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR 32 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208R  CYS*     5.1     1.6    -      -       -      -
    203S  ALA      4.3     0.3    +      -       -      -
    206S  ASN      5.5     0.4    -      -       -      +
    207S  SER*     3.1    39.8    +      -       -      +
     30T  GLN      3.4     5.8    +      -       -      +
     31T  TYR*     1.3    75.6    -      -       -      +
     33T  ALA*     1.3    58.1    +      -       -      +
     34T  GLU*     3.7    16.0    +      -       -      +
     35T  GLU*     3.2    18.9    +      -       -      +
     36T  TYR*     2.7    34.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 33 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205R  TYR*     3.6    35.8    -      -       +      +
    208R  CYS*     3.7    33.8    -      -       +      +
     32T  THR*     1.3    72.9    -      -       -      +
     34T  GLU*     1.3    63.4    +      -       -      +
     36T  TYR*     3.7     0.9    -      -       -      +
     37T  GLN*     2.9    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 34 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205R  TYR*     4.8    11.2    +      -       -      +
    203S  ALA*     3.6    22.5    -      -       +      +
    206S  ASN*     5.1    10.0    -      -       +      +
     32T  THR*     3.7    17.3    +      -       -      +
     33T  ALA*     1.3    86.3    +      -       -      +
     35T  GLU*     1.3    55.9    +      -       -      +
     37T  GLN*     3.9     4.9    -      -       -      +
     38T  ALA*     2.9    31.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 35 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81S  TYR*     4.5     0.2    -      -       -      -
    200S  VAL*     4.9     2.9    -      -       +      +
    203S  ALA*     3.6    15.2    -      -       +      +
    204S  ARG*     3.0    40.1    +      -       +      +
    207S  SER*     3.0    24.3    +      -       -      -
     31T  TYR*     3.3    29.5    -      -       +      -
     32T  THR*     3.2    17.0    +      -       -      +
     34T  GLU*     1.3    75.7    -      -       -      +
     36T  TYR*     1.3    67.1    +      -       -      +
     38T  ALA*     3.5     2.3    +      -       -      +
     39T  ILE*     2.9    33.9    +      -       +      +
     79T  PHE      4.9     0.2    -      -       -      +
    116T  LYS*     3.1    21.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 36 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201R  GLU*     3.0    28.3    +      -       -      -
    204R  ARG*     2.3    55.9    +      -       +      +
    205R  TYR*     4.3    16.6    -      -       +      -
    208R  CYS*     3.8    22.4    -      -       -      -
     80S  GLY*     4.6     1.3    -      -       -      -
     81S  TYR*     3.4    34.6    +      +       -      +
     82S  ASN*     3.8    13.0    -      -       -      -
     31T  TYR*     4.2    10.2    -      -       +      +
     32T  THR      2.7    21.4    +      -       -      +
     33T  ALA      3.7     4.9    -      -       -      +
     35T  GLU*     1.3    73.3    -      -       -      +
     37T  GLN*     1.3    69.2    +      -       +      +
     40T  GLN*     2.9    37.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 37 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201R  GLU*     4.4    12.6    +      -       -      +
    205R  TYR*     3.1    35.7    +      -       +      -
     33T  ALA      2.9    17.6    +      -       -      +
     34T  GLU*     3.9     4.2    -      -       -      +
     36T  TYR*     1.3    81.5    -      -       +      +
     38T  ALA*     1.3    67.2    +      -       -      +
     40T  GLN*     3.4     3.2    +      -       -      +
     41T  LYS*     2.9    58.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 38 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199S  SER*     4.2    14.1    -      -       -      +
    200S  VAL*     3.5    36.7    -      -       +      +
    203S  ALA*     4.5     1.3    -      -       +      -
     34T  GLU      2.9    17.9    +      -       -      +
     35T  GLU*     3.8     5.4    -      -       -      +
     37T  GLN*     1.3    78.0    -      -       -      +
     39T  ILE*     1.3    57.2    +      -       -      +
     41T  LYS*     3.8     6.0    -      -       -      +
     42T  ALA*     2.9    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 39 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81S  TYR*     3.4    34.1    -      -       +      +
    200S  VAL*     3.5    20.4    -      -       +      -
    204S  ARG*     4.3     0.4    -      -       -      +
     31T  TYR*     3.6    36.6    -      -       +      +
     35T  GLU*     2.9    28.3    +      -       +      +
     38T  ALA*     1.3    75.3    -      -       -      +
     40T  GLN*     1.3    63.7    +      -       -      +
     42T  ALA*     3.8     0.2    -      -       -      -
     43T  LEU*     2.9    29.5    +      -       +      +
     78T  MET*     3.6    36.1    -      -       +      +
     79T  PHE*     4.1     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 40 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201R  GLU*     3.8    18.1    +      -       -      +
    204R  ARG*     3.5    13.5    -      -       -      +
     76S  ASN*     3.1    27.9    +      -       -      +
     77S  GLU*     4.6     8.7    +      -       -      +
     80S  GLY*     3.2    16.6    -      -       -      -
     81S  TYR*     3.7    24.5    +      -       +      +
     36T  TYR*     2.9    29.1    +      -       +      +
     37T  GLN*     3.8     4.5    -      -       -      +
     39T  ILE*     1.3    80.5    -      -       -      +
     41T  LYS*     1.3    64.1    +      -       -      +
     43T  LEU*     3.6     8.9    +      -       -      +
     44T  ARG*     3.8    30.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 41 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201R  GLU*     6.1     3.9    -      -       -      +
     37T  GLN*     2.9    54.7    +      -       +      +
     38T  ALA*     3.8     4.7    -      -       -      +
     40T  GLN*     1.3    77.5    -      -       -      +
     42T  ALA*     1.3    64.1    +      -       -      +
     44T  ARG*     3.0    46.6    +      -       -      +
     45T  GLN*     4.0     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 42 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197S  GLU*     3.4    30.8    -      -       -      +
    200S  VAL*     4.0     6.5    -      -       +      -
     38T  ALA      2.9    19.0    +      -       -      +
     39T  ILE      3.3     3.3    +      -       -      +
     41T  LYS*     1.3    76.6    -      -       -      +
     43T  LEU*     1.3    62.5    +      -       -      +
     45T  GLN*     3.2    30.0    +      -       -      +
     78T  MET*     4.0    13.1    -      -       -      +
    161T  ALA*     3.5     9.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 43 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81S  TYR*     3.6    26.2    -      -       +      -
     39T  ILE*     2.9    31.7    +      -       +      +
     40T  GLN*     4.1     7.4    -      -       -      +
     41T  LYS      3.2     0.4    -      -       -      -
     42T  ALA*     1.3    77.1    -      -       -      +
     44T  ARG*     1.3    58.2    +      -       -      +
     45T  GLN      3.3     0.2    -      -       -      -
     78T  MET*     3.6    17.7    -      -       +      -
     79T  PHE*     4.5     3.4    -      -       +      -
    158T  PHE*     3.3    32.5    -      -       +      +
    159T  GLY*     4.0     1.9    -      -       -      +
    160T  ASN      3.2     9.2    +      -       -      -
    161T  ALA*     3.0    35.1    +      -       +      -
    162T  LEU*     3.9    33.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 44 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196R  LEU*     3.7    20.3    -      -       -      +
    201R  GLU*     4.8    10.5    +      -       -      +
     77S  GLU*     2.8    49.5    +      -       -      +
     40T  GLN*     3.8    25.1    +      -       -      +
     41T  LYS*     3.0    54.1    +      -       -      +
     43T  LEU*     1.3    77.6    -      -       -      +
     45T  GLN*     1.3    64.6    +      -       -      +
     46T  ARG*     3.3     9.7    +      -       -      +
    160T  ASN*     3.5    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 45 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190S  LYS      4.3    11.8    -      -       -      +
    192S  LYS*     3.6    29.1    +      -       +      +
    197S  GLU*     3.0    34.9    +      -       -      +
     41T  LYS      4.3     3.4    -      -       -      +
     42T  ALA*     3.2    27.0    +      -       -      +
     44T  ARG*     1.3    76.0    -      -       -      +
     46T  ARG*     1.3    65.8    +      -       -      +
     47T  LEU*     4.7     0.2    -      -       -      +
    160T  ASN*     3.7     0.4    -      -       -      -
    161T  ALA*     3.2    31.7    +      -       +      -
----------------------------------------------------------
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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