Contacts of the helix formed by residues 279 - 294 (chain A) in PDB entry 4UC5


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 ARG 279 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272A  ASN      5.5     0.2    -      -       -      +
    273A  SER*     3.8    20.9    -      -       -      +
    276A  ASP*     2.8    35.8    +      -       +      +
    278A  THR*     1.3    77.4    -      -       -      +
    280A  GLN*     1.3    65.5    +      -       -      +
    281A  MET      3.1     2.0    -      -       -      -
    282A  GLU*     3.1    46.0    +      -       +      +
    283A  VAL*     3.1    24.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 280 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  CYS*     3.6    28.7    -      -       +      +
    269A  SER*     3.6    22.4    +      -       -      +
    273A  SER*     4.1     4.4    -      -       -      -
    276A  ASP      3.8     0.8    +      -       -      -
    277A  TYR*     3.1    27.4    +      -       -      +
    279A  ARG*     1.3    77.7    -      -       -      +
    281A  MET*     1.3    57.4    +      -       -      +
    283A  VAL*     3.2     4.0    +      -       -      +
    284A  ALA*     2.9    28.6    +      -       -      +
    303A  VAL*     3.5    10.6    -      -       -      +
    304A  GLU*     2.9    49.7    +      -       -      +
    325A  ALA      4.2     2.4    +      -       -      -
    327A  ILE*     3.8    19.4    -      -       +      +
    335A  LEU*     4.6     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 281 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277A  TYR      4.5     0.2    +      -       -      -
    278A  THR      4.1    11.9    +      -       -      +
    279A  ARG      3.1     0.6    -      -       -      -
    280A  GLN*     1.3    79.7    -      -       -      +
    282A  GLU*     1.3    57.0    +      -       -      +
    284A  ALA*     3.2     5.6    +      -       -      +
    285A  GLN*     2.9    48.3    +      -       -      +
    327A  ILE*     5.5     3.7    -      -       +      +
    331A  ALA*     4.6    10.1    -      -       +      +
    334A  GLU*     4.3    26.7    -      -       +      +
    335A  LEU*     4.0    32.3    -      -       +      +
    338A  LEU*     3.4    30.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 282 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR*     3.3    22.7    +      -       -      +
    272A  ASN      5.8     0.2    -      -       -      +
    278A  THR      4.5     1.5    +      -       -      +
    279A  ARG*     3.1    56.0    +      -       -      +
    281A  MET*     1.3    79.2    -      -       -      +
    283A  VAL*     1.3    63.4    +      -       -      +
    285A  GLN*     3.1    17.0    +      -       +      +
    286A  ASP*     3.0    21.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 283 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR*     3.8    40.4    -      -       +      +
    266A  ILE*     4.4     1.6    -      -       +      -
    267A  ASP      4.5     0.9    -      -       -      +
    268A  CYS*     3.7    34.8    -      -       +      +
    272A  ASN      3.7    22.0    -      -       -      +
    279A  ARG*     3.1    16.6    +      -       +      +
    280A  GLN      3.2     6.3    +      -       -      +
    282A  GLU*     1.3    79.2    -      -       +      +
    284A  ALA*     1.3    64.9    +      -       -      +
    286A  ASP*     3.1     3.8    +      -       -      +
    287A  ILE*     2.9    39.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 284 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  CYS*     4.1    10.9    -      -       -      -
    280A  GLN      2.9    13.2    +      -       -      +
    281A  MET*     3.5     8.7    -      -       -      +
    283A  VAL*     1.3    76.9    -      -       -      +
    285A  GLN*     1.3    56.8    +      -       -      +
    287A  ILE*     3.1     9.0    +      -       -      +
    288A  ALA*     2.9    28.1    +      -       -      +
    335A  LEU*     3.8    33.2    -      -       +      -
    338A  LEU*     4.2     9.4    -      -       +      -
    339A  LEU*     3.8    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 285 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281A  MET*     2.9    37.0    +      -       -      +
    282A  GLU*     3.4    17.5    -      -       -      +
    283A  VAL      3.1     0.4    -      -       -      -
    284A  ALA*     1.3    71.9    -      -       -      +
    286A  ASP*     1.3    66.3    +      -       -      +
    288A  ALA*     3.2     5.0    +      -       -      +
    289A  ALA*     3.0    22.7    +      -       -      +
    338A  LEU*     3.7    23.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 286 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR*     3.6    28.3    -      -       +      -
    244A  ASP*     3.8    13.8    -      -       -      +
    245A  ALA      4.4     0.7    +      -       -      -
    282A  GLU*     3.0    11.1    +      -       +      +
    283A  VAL      3.5     7.4    -      -       -      +
    285A  GLN*     1.3    75.6    -      -       -      +
    287A  ILE*     1.3    62.7    +      -       -      +
    289A  ALA*     3.3     9.4    +      -       -      +
    290A  GLN*     3.0    51.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 287 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR*     5.1     2.5    -      -       +      +
    266A  ILE*     3.6    43.5    -      -       +      -
    268A  CYS*     4.0    14.8    -      -       -      -
    283A  VAL*     2.9    29.5    +      -       +      +
    284A  ALA*     3.1     8.3    +      -       -      +
    286A  ASP*     1.3    77.3    -      -       +      +
    288A  ALA*     1.3    55.1    +      -       -      +
    290A  GLN*     3.3    13.8    +      -       -      +
    291A  LEU*     3.0    40.6    +      -       +      +
    298A  ILE*     4.3    18.2    -      -       +      -
    301A  VAL*     4.2    23.3    -      -       +      -
    339A  LEU*     4.5     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 288 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284A  ALA      2.9    12.7    +      -       -      +
    285A  GLN      3.2     9.4    +      -       -      +
    287A  ILE*     1.3    73.2    -      -       -      +
    289A  ALA*     1.3    58.6    +      -       -      +
    291A  LEU*     3.1     7.3    +      -       -      +
    292A  GLU*     2.9    29.6    +      -       -      +
    338A  LEU*     4.1    26.7    -      -       +      +
    339A  LEU*     4.5     3.9    -      -       +      +
    342A  ALA*     3.7    26.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 289 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    285A  GLN      3.0    13.6    +      -       -      +
    286A  ASP*     3.5    13.0    -      -       -      +
    288A  ALA*     1.3    74.5    -      -       -      +
    290A  GLN*     1.3    63.7    +      -       +      +
    292A  GLU*     3.2     7.6    +      -       -      +
    293A  GLN*     3.0    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 290 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR      2.9    25.7    +      -       -      -
    245A  ALA*     3.5    29.4    -      -       +      +
    248A  VAL*     3.6    15.8    -      -       -      +
    286A  ASP*     3.0    36.5    +      -       -      +
    287A  ILE*     3.3    16.0    +      -       -      +
    289A  ALA*     1.3    76.0    -      -       -      +
    291A  LEU*     1.3    55.3    +      -       -      +
    293A  GLN*     4.0     4.2    -      -       -      +
    294A  ASP*     2.7    31.0    +      -       -      +
    295A  GLY*     2.9    14.3    +      -       -      +
    298A  ILE*     3.5    24.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 291 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  LEU*     4.3    16.8    -      -       +      -
    287A  ILE*     3.0    31.1    +      -       +      +
    288A  ALA*     3.1     8.5    +      -       -      +
    290A  GLN*     1.3    74.6    -      -       -      +
    292A  GLU*     1.3    62.8    +      -       -      +
    294A  ASP      4.3     3.4    -      -       -      -
    295A  GLY*     3.9     8.7    -      -       -      +
    298A  ILE*     4.4    15.7    -      -       +      -
    339A  LEU*     4.8     5.4    -      -       +      +
    342A  ALA*     4.2    18.6    -      -       +      +
    343A  ASN*     4.1    23.1    -      -       +      +
    346A  ARG*     3.4    49.0    -      -       +      +
    349A  ARG*     3.4    21.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 292 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288A  ALA      2.9    12.5    +      -       -      +
    289A  ALA*     3.2    11.2    +      -       -      +
    291A  LEU*     1.3    75.0    -      -       -      +
    293A  GLN*     1.3    57.7    +      -       -      +
    342A  ALA*     4.7     8.7    +      -       +      -
    345A  LYS*     5.1    17.9    -      -       +      +
    349A  ARG*     2.7    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289A  ALA      3.0    15.9    +      -       -      +
    290A  GLN*     4.0     4.7    -      -       -      +
    292A  GLU*     1.3    78.3    -      -       -      +
    294A  ASP*     1.3    63.5    +      -       +      +
    349A  ARG*     4.3     5.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 294 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  GLN      2.7    11.2    +      -       -      +
    291A  LEU      3.9     0.5    -      -       -      +
    292A  GLU      3.8     1.0    -      -       -      -
    293A  GLN*     1.3    77.5    -      -       +      +
    295A  GLY*     1.3    66.1    +      -       -      +
    296A  GLY*     3.1    14.1    +      -       -      -
    346A  ARG*     3.7     8.3    -      -       -      -
    349A  ARG*     3.0    23.9    +      -       -      +
----------------------------------------------------------
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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