Contacts of the helix formed by residues 876 - 891 (chain N) in PDB entry 5X22


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 SER 876 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792N  ILE      4.3     2.6    +      -       -      -
    794N  GLN      4.6     1.2    +      -       -      -
    795N  VAL*     3.9    21.1    -      -       -      +
    860N  LEU      3.2    20.7    +      -       -      -
    861N  GLN*     4.2     1.8    -      -       -      -
    862N  ASP      3.2    14.1    -      -       -      -
    863N  VAL*     4.4     0.4    -      -       -      +
    864N  VAL*     4.9     0.7    -      -       -      -
    875N  THR*     1.3    82.3    +      -       -      +
    877N  PRO*     1.3    66.7    -      -       -      +
    878N  GLY*     3.2     0.7    +      -       -      -
    879N  ARG*     3.2    35.6    +      -       -      +
    880N  ILE*     3.3    14.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 877 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    849N  ALA*     4.8    10.1    -      -       +      -
    850N  LEU*     3.5    16.8    -      -       +      +
    853N  VAL*     3.7    25.8    -      -       +      -
    858N  VAL*     4.5     8.1    -      -       +      -
    859N  ASP      3.7    14.1    -      -       -      +
    860N  LEU*     3.7    12.3    -      -       +      +
    862N  ASP      3.1    15.5    -      -       -      +
    864N  VAL*     4.1    18.6    -      -       +      -
    866N  VAL*     5.8     0.2    -      -       +      -
    876N  SER*     1.3    86.0    -      -       -      +
    878N  GLY*     1.3    54.6    +      -       -      +
    879N  ARG      3.4     0.2    -      -       -      -
    880N  ILE*     3.4    11.7    -      -       +      +
    881N  LEU*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 878 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792N  ILE*     3.3    32.7    -      -       -      +
    860N  LEU*     3.1    26.0    +      -       -      +
    876N  SER      3.0     1.4    -      -       -      -
    877N  PRO*     1.3    76.2    -      -       -      +
    879N  ARG*     1.3    59.0    +      -       -      +
    881N  LEU*     3.2     5.8    +      -       -      +
    882N  PHE*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 879 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    793N  THR*     2.8    37.4    +      -       +      +
    795N  VAL*     3.4    39.8    -      -       -      +
    875N  THR*     3.2    27.9    +      -       -      +
    876N  SER*     3.2    12.3    +      -       -      +
    878N  GLY*     1.3    72.2    -      -       -      +
    880N  ILE*     1.3    61.3    +      -       -      +
    882N  PHE*     3.3     8.1    +      -       -      +
    883N  ALA      2.9    23.7    +      -       -      -
    902N  LEU*     3.1    36.8    +      -       +      +
    903N  ASP*     3.0    37.4    +      -       -      +
    904N  VAL      4.2     2.8    -      -       -      -
    905N  PRO*     3.5    21.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 880 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    846N  PRO*     3.6    37.0    -      -       +      +
    849N  ALA*     5.8     0.9    -      -       +      -
    850N  LEU*     5.0     6.5    -      -       +      -
    866N  VAL*     4.5    24.7    -      -       +      -
    868N  TYR*     4.5    22.6    -      -       +      -
    873N  LEU*     4.7     9.6    -      -       +      -
    875N  THR*     3.8    20.2    -      -       +      -
    876N  SER      3.3    13.7    +      -       -      +
    877N  PRO*     3.4    13.2    -      -       +      +
    879N  ARG*     1.3    77.5    -      -       -      +
    881N  LEU*     1.3    57.9    +      -       -      +
    883N  ALA*     3.2     7.5    +      -       +      +
    884N  ARG*     2.9    29.6    +      -       +      +
    897N  TRP*     5.8     0.2    -      -       +      -
    902N  LEU*     5.2     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 881 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792N  ILE*     4.4     6.3    -      -       +      -
    850N  LEU*     3.8    28.3    -      -       +      -
    860N  LEU*     4.3    22.0    -      -       +      -
    877N  PRO      2.9    14.7    +      -       -      +
    878N  GLY      3.2     9.4    -      -       -      +
    880N  ILE*     1.3    77.2    -      -       -      +
    882N  PHE*     1.3    57.6    +      -       -      +
    884N  ARG*     3.2    20.5    +      -       -      +
    885N  ILE*     2.9    46.8    +      -       +      +
    937N  TYR*     5.4     5.4    -      -       +      -
    941N  PHE*     3.5    32.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 882 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    789N  LEU*     4.1    22.0    -      -       +      -
    792N  ILE*     4.6     2.9    -      -       +      +
    793N  THR*     3.8    19.7    -      -       +      -
    878N  GLY      2.9    13.3    +      -       -      +
    879N  ARG*     3.6     8.3    -      -       -      +
    880N  ILE      3.3     0.2    -      -       -      -
    881N  LEU*     1.3    74.5    -      -       -      +
    883N  ALA*     1.3    66.5    +      -       -      +
    885N  ILE*     2.9    23.3    +      -       +      +
    886N  VAL*     2.9    25.1    +      -       +      +
    900N  ILE*     3.5    20.9    -      -       +      -
    902N  LEU*     5.8     1.6    -      -       +      -
    906N  GLN*     3.4    31.4    -      -       +      -
    911N  LEU*     3.6    27.1    -      -       +      -
    914N  LEU*     3.7    16.8    -      -       +      -
    934N  LEU*     3.7    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 883 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    868N  TYR*     4.4    19.9    +      -       +      -
    879N  ARG      2.9    13.8    +      -       -      +
    880N  ILE*     3.4    11.7    -      -       -      +
    882N  PHE*     1.3    77.7    -      -       -      +
    884N  ARG*     1.3    57.9    +      -       -      +
    886N  VAL*     3.5     2.6    +      -       -      +
    887N  ALA*     2.9    29.0    +      -       -      +
    896N  ALA*     4.9     0.2    -      -       -      +
    897N  TRP*     4.7     6.7    -      -       +      -
    900N  ILE*     3.6    26.2    -      -       +      +
    902N  LEU*     4.3    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 884 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176L  ARG*     3.1    40.6    -      -       -      +
    846N  PRO*     5.2     6.5    -      -       +      +
    847N  ASP*     3.1    28.3    +      -       -      +
    850N  LEU*     3.3    36.7    -      -       -      +
    868N  TYR*     4.9     7.8    +      -       +      +
    880N  ILE*     2.9    16.0    +      -       +      +
    881N  LEU*     3.5    20.5    -      -       -      +
    883N  ALA*     1.3    73.2    -      -       -      +
    885N  ILE*     1.3    62.3    +      -       -      +
    887N  ALA*     3.6     6.7    -      -       +      +
    888N  GLU*     2.9    55.1    +      -       +      +
    937N  TYR*     6.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 885 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    789N  LEU*     5.0     1.6    -      -       +      -
    792N  ILE*     4.6     4.5    -      -       +      -
    881N  LEU*     2.9    29.2    +      -       +      +
    882N  PHE*     3.2    19.5    -      -       +      +
    884N  ARG*     1.3    78.4    -      -       -      +
    886N  VAL*     1.3    58.4    +      -       -      +
    888N  GLU*     4.1     2.7    -      -       -      +
    889N  ALA*     2.9    31.9    +      -       +      +
    930N  LEU*     5.7     0.2    -      -       +      -
    933N  ALA*     4.5    10.9    -      -       +      +
    934N  LEU*     4.6    17.9    -      -       +      -
    937N  TYR*     3.5    64.6    -      -       +      -
    941N  PHE*     4.2    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 886 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    882N  PHE*     2.9    44.3    +      -       +      +
    883N  ALA      3.8     5.2    -      -       -      +
    885N  ILE*     1.3    75.2    -      -       +      +
    887N  ALA*     1.3    63.8    +      -       -      +
    889N  ALA*     3.2     0.5    +      -       -      +
    890N  VAL*     2.9    35.6    +      -       +      +
    896N  ALA*     4.0    16.2    -      -       +      -
    899N  LEU*     5.0     2.5    -      -       +      -
    900N  ILE*     3.9    17.9    -      -       +      -
    914N  LEU*     4.1    19.5    -      -       +      -
    930N  LEU*     4.0    23.1    -      -       +      -
    934N  LEU*     4.9     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 887 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    868N  TYR*     4.5     4.9    -      -       -      +
    883N  ALA      2.9    19.2    +      -       -      +
    884N  ARG*     3.6     9.2    -      -       +      +
    886N  VAL*     1.3    76.3    -      -       -      +
    888N  GLU*     1.3    59.3    +      -       +      +
    890N  VAL*     3.5     2.8    +      -       -      +
    891N  GLU*     2.9    28.4    +      -       -      -
    892N  ASP      3.6     3.9    +      -       -      -
    893N  GLU*     4.2    26.2    -      -       +      +
    896N  ALA*     3.5    19.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 888 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176L  ARG*     2.3    40.6    +      -       -      -
    198L  ARG*     3.9    20.0    +      -       -      -
    200L  TRP*     4.6     1.1    -      -       -      -
    884N  ARG*     2.9    37.6    +      -       +      +
    885N  ILE*     4.2     2.9    -      -       -      +
    887N  ALA*     1.3    74.3    -      -       +      +
    889N  ALA*     1.3    64.9    +      -       -      +
    890N  VAL      3.6     0.2    +      -       -      -
    891N  GLU*     3.6    16.5    +      -       -      +
    937N  TYR*     4.9     6.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 889 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    885N  ILE      2.9    20.0    +      -       -      +
    886N  VAL      3.2     4.2    +      -       -      +
    888N  GLU*     1.3    80.1    -      -       -      +
    890N  VAL*     1.3    61.1    +      -       -      +
    891N  GLU*     3.6     5.4    +      -       -      +
    926N  LYS*     4.7     1.0    -      -       -      +
    929N  ARG*     4.1    23.8    +      -       -      +
    930N  LEU*     3.9    24.0    -      -       +      +
    933N  ALA*     3.7    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 890 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    886N  VAL*     2.9    25.4    +      -       +      +
    887N  ALA      3.6     1.3    -      -       -      +
    889N  ALA*     1.3    75.8    -      -       -      +
    891N  GLU*     1.3    69.8    +      -       -      +
    892N  ASP*     3.1    31.1    +      -       +      +
    896N  ALA*     3.8     9.4    -      -       +      +
    899N  LEU*     5.2     0.9    -      -       +      -
    922N  LEU*     3.5    32.3    -      -       +      -
    926N  LYS*     3.3    32.6    +      -       +      +
    930N  LEU*     4.0    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 891 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    887N  ALA      2.9    12.0    +      -       -      -
    888N  GLU*     3.6    15.2    +      -       -      +
    889N  ALA      3.3     4.0    -      -       -      +
    890N  VAL*     1.3    78.4    -      -       -      +
    892N  ASP*     1.3    58.1    +      -       -      +
    893N  GLU      4.2     0.4    -      -       -      -
    926N  LYS*     4.1    16.0    +      -       -      +
    929N  ARG*     3.7    29.0    +      -       -      -
----------------------------------------------------------
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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