Contacts of the helix formed by residues 82 - 95 (chain B) in PDB entry 1ULT


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 HIS 82 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  SER*     3.5    18.8    -      -       -      +
     39B  ARG      5.1     2.9    -      -       -      +
     40B  LEU*     4.4    19.7    -      -       +      -
     80B  PHE*     3.2    23.7    +      -       +      -
     81B  ASN*     1.3    73.7    -      -       -      +
     83B  PHE*     1.3    69.7    +      +       +      +
     84B  ARG*     3.5    12.0    +      -       +      +
     85B  HIS*     3.0    40.0    +      -       +      +
     86B  LEU      3.1     8.5    +      -       -      -
    126B  ASP*     2.7    36.3    +      -       -      -
    149B  MET*     3.8    17.9    +      -       +      -
    228B  MET*     4.3     0.5    -      -       -      +
    249B  LEU*     3.3    14.5    -      -       -      +
    251B  GLY*     5.4     2.9    -      -       -      -
    252B  PRO*     6.1     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 83 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  VAL*     4.4     5.8    -      -       +      -
     38B  SER*     2.9    22.6    +      -       -      +
     40B  LEU*     4.2    13.7    -      -       +      -
     46B  HIS*     3.5    49.1    -      +       -      -
     48B  THR*     4.1    21.3    -      -       +      -
     53B  VAL*     5.1     2.0    -      -       +      +
     56B  ARG*     3.7    26.5    -      -       -      -
     82B  HIS*     1.3    76.7    -      -       +      +
     84B  ARG*     1.3    99.4    -      -       +      +
     86B  LEU*     3.1     6.7    +      -       -      +
     87B  GLU*     2.9    46.7    +      -       -      +
    249B  LEU*     4.1     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 84 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  LEU*     4.8    10.9    -      -       -      +
     82B  HIS*     3.3    15.7    +      -       +      +
     83B  PHE*     1.3   119.5    -      -       +      +
     85B  HIS*     1.3    62.9    +      -       -      +
     87B  GLU*     3.3     7.1    +      -       -      -
     88B  ALA*     3.0    22.3    +      -       -      +
    149B  MET*     3.7    30.4    +      -       -      -
    150B  ASP*     3.7    27.3    +      -       -      +
    151B  GLU*     3.9    13.1    -      -       -      +
    160B  TYR*     3.4    42.1    +      -       +      -
    161B  GLU*     3.0    33.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 85 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  THR*     2.9    43.1    +      -       +      +
     79B  GLY*     3.6    25.0    +      -       -      -
     80B  PHE      3.0    27.6    +      -       -      +
     82B  HIS*     3.0    20.3    +      +       +      +
     84B  ARG*     1.3    79.1    -      -       -      +
     86B  LEU*     1.3    58.4    +      -       -      +
     88B  ALA*     3.3     3.2    +      -       +      +
     89B  TYR*     2.9    45.6    +      +       -      -
    101B  THR*     4.4     1.8    -      -       +      +
    149B  MET*     4.5     4.9    -      -       +      -
    228B  MET*     3.8    32.5    -      -       +      +
    229B  PHE*     4.8     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  LEU*     6.2     0.2    -      -       +      -
     36B  VAL*     3.9    35.7    -      -       +      -
     50B  TYR*     4.8     4.7    -      -       +      -
     53B  VAL*     4.4    17.5    -      -       +      -
     82B  HIS      3.1    10.2    +      -       -      +
     83B  PHE*     3.1    12.0    +      -       -      +
     85B  HIS*     1.3    76.0    -      -       -      +
     87B  GLU*     1.3    65.0    +      -       -      +
     89B  TYR*     3.1    19.6    +      -       +      +
     90B  PHE*     3.4    33.9    +      -       +      -
    228B  MET*     3.9     6.9    -      -       +      +
    237B  PRO*     4.2    29.2    -      -       +      +
    241B  THR*     4.4     0.4    -      -       -      +
    247B  GLN*     4.2    16.6    -      -       -      +
    249B  LEU*     4.5     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48B  THR*     5.5     0.5    +      -       -      -
     53B  VAL*     3.7    36.2    -      -       +      +
     56B  ARG*     2.7    54.2    +      -       -      +
     57B  ALA*     4.1    13.1    -      -       +      +
     60B  LEU*     4.0     4.7    -      -       +      -
     83B  PHE*     2.9    28.9    +      -       -      +
     84B  ARG*     3.3     5.2    +      -       -      +
     86B  LEU*     1.3    75.8    -      -       -      +
     88B  ALA*     1.3    56.9    +      -       -      +
     90B  PHE*     3.2     3.5    +      -       -      +
     91B  ALA*     2.8    30.7    +      -       -      +
    160B  TYR*     2.7    33.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60B  LEU*     3.8    10.7    -      -       +      +
     77B  THR*     4.4    15.7    -      -       +      -
     84B  ARG      3.0    13.2    +      -       -      +
     85B  HIS*     3.6    10.3    -      -       +      +
     87B  GLU*     1.3    74.2    -      -       -      +
     89B  TYR*     1.3    67.1    +      -       -      +
     90B  PHE      3.0     1.4    +      -       -      -
     91B  ALA*     4.4     1.3    -      -       -      +
     92B  VAL*     3.2    29.2    +      -       +      +
     93B  PRO*     3.6     1.9    -      -       -      +
     99B  LEU*     4.1     7.6    -      -       +      +
    124B  LEU*     4.0    26.7    -      -       +      -
    149B  MET*     5.5     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85B  HIS*     2.9    35.1    +      +       -      +
     86B  LEU*     3.1    16.8    -      -       +      +
     88B  ALA*     1.3    77.2    -      -       -      +
     90B  PHE*     1.3    58.7    +      -       +      +
     93B  PRO*     3.1    13.7    -      -       -      +
     99B  LEU*     3.5    22.9    -      -       +      -
    101B  THR*     4.2     3.3    -      -       +      +
    228B  MET*     2.4    49.6    +      -       +      +
    232B  ASN*     3.2    28.7    +      -       +      -
    237B  PRO*     3.9    30.3    -      -       +      -
    238B  TYR*     2.6    58.9    +      +       +      +
----------------------------------------------------------
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Residues in contact with PHE 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  LEU*     3.5    29.2    -      -       +      -
     21B  TRP*     3.4    12.3    +      -       +      +
     23B  PHE*     3.9     9.4    -      -       +      -
     24B  LEU*     3.7    40.6    -      -       +      -
     53B  VAL*     5.2     0.9    -      -       +      -
     57B  ALA*     4.8     0.2    -      -       +      -
     86B  LEU*     3.4    36.9    +      -       +      -
     87B  GLU      3.2     4.8    +      -       -      +
     88B  ALA      3.0     0.2    -      -       -      -
     89B  TYR*     1.3    80.9    -      -       -      +
     91B  ALA*     1.3    55.0    +      -       -      +
     92B  VAL      3.5     0.7    -      -       -      -
     93B  PRO*     3.5     1.2    -      -       -      +
     94B  GLY*     2.7    35.5    +      -       -      -
    237B  PRO      4.5     0.2    -      -       -      -
    238B  TYR*     3.5    33.9    -      +       -      -
    241B  THR*     3.6    40.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  TRP*     4.2     4.0    -      -       -      -
     57B  ALA*     3.6    21.5    -      -       -      +
     60B  LEU*     3.8    24.2    -      -       +      -
     61B  MET*     3.3    24.3    -      -       +      +
     64B  LEU*     4.8     2.2    -      -       +      -
     87B  GLU      2.8    21.9    +      -       -      +
     88B  ALA*     4.3     0.9    -      -       -      +
     90B  PHE*     1.3    72.7    -      -       -      +
     92B  VAL*     1.3    63.7    +      -       -      +
     94B  GLY      3.3     0.2    +      -       -      -
     95B  MET*     3.0    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  LEU*     4.1    12.1    -      -       +      -
     75B  VAL*     4.1    22.7    -      -       +      -
     88B  ALA*     3.2    19.5    +      -       +      +
     91B  ALA*     1.3    76.0    -      -       +      +
     93B  PRO*     1.3    68.0    -      -       +      +
     95B  MET*     3.3    11.5    -      -       -      +
     97B  ALA*     2.9    45.8    +      -       +      +
     98B  VAL      3.5    29.2    -      -       -      +
     99B  LEU*     3.5    21.1    -      -       +      +
    124B  LEU*     5.7     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  ASN*     4.8     0.5    -      -       -      +
     20B  LEU*     4.1    11.2    -      -       +      -
     88B  ALA      3.6     2.2    -      -       -      +
     89B  TYR      3.1    28.9    -      -       -      +
     90B  PHE*     3.5     5.4    -      -       -      +
     92B  VAL*     1.3    96.3    -      -       +      +
     94B  GLY*     1.3    60.6    +      -       -      +
     96B  GLY*     3.0    12.6    +      -       -      -
     97B  ALA      3.7     9.6    -      -       -      +
     99B  LEU*     4.5     4.7    -      -       +      -
    171B  VAL      4.6     1.7    -      -       -      +
    179B  CYS*     3.5    24.2    -      -       +      +
    198B  HIS*     3.4    37.8    +      -       +      +
    238B  TYR*     3.8     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  ASN*     4.8     2.9    +      -       -      -
     21B  TRP*     3.9    28.6    -      -       -      +
     61B  MET*     3.5     6.7    -      -       -      -
     90B  PHE      2.7    24.8    +      -       -      -
     91B  ALA      3.6     1.6    -      -       -      -
     92B  VAL      3.2     0.2    -      -       -      -
     93B  PRO*     1.3    73.6    -      -       -      +
     95B  MET*     1.3    48.6    +      -       -      +
     96B  GLY      3.3     0.7    -      -       -      -
    170B  PRO*     3.3     8.0    -      -       -      +
    171B  VAL      2.8    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  MET*     3.7    32.3    -      -       +      +
     64B  LEU*     3.7    34.1    -      -       +      -
     65B  ARG*     3.7    27.0    +      -       -      +
     69B  VAL*     3.5    39.5    -      -       +      +
     70B  GLY*     4.9     1.3    -      -       -      +
     71B  VAL*     3.8    13.5    +      -       -      +
     91B  ALA      3.0    13.0    +      -       -      +
     92B  VAL*     3.3    15.5    -      -       -      +
     93B  PRO      3.1     0.4    -      -       -      -
     94B  GLY*     1.3    75.9    -      -       -      +
     96B  GLY*     1.3    58.6    +      -       -      +
     97B  ALA*     3.8     7.4    -      -       +      +
    171B  VAL*     3.8    21.7    -      -       -      +
----------------------------------------------------------
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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