Contacts of the helix formed by residues 393 - 404 (chain U) in PDB entry 1G3I


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 ALA 393 (chain U).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60U  GLY      3.5    16.6    +      -       -      +
    336U  LEU*     3.5    15.5    -      -       +      +
    341U  PHE*     4.0    11.0    -      -       -      -
    344U  ILE*     5.0     0.9    -      -       +      -
    391U  ILE      3.8     0.4    +      -       -      -
    392U  GLY*     1.3    70.1    -      -       -      -
    394U  ARG*     1.3    53.4    +      -       -      +
    395U  ARG      2.6     0.2    +      -       -      -
    396U  LEU*     2.5    47.5    +      -       +      +
    397U  HIS*     3.9     5.4    +      -       -      +
    458U  ATP      3.8    36.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 394 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287T  GLU*     2.9    33.7    +      -       -      +
    321T  PRO      4.8     0.6    +      -       -      -
    322T  GLU*     3.3    45.7    +      -       -      +
    325T  GLY*     4.0    16.5    -      -       -      +
    326T  ARG*     3.6    31.6    -      -       -      +
     59U  THR*     5.0     4.9    -      -       -      +
     60U  GLY*     5.5     1.1    -      -       -      -
    391U  ILE*     4.0    21.9    +      -       +      +
    392U  GLY      3.2     0.2    -      -       -      -
    393U  ALA*     1.3    75.4    -      -       -      +
    395U  ARG*     1.3    61.3    +      -       -      +
    396U  LEU      3.2     0.4    -      -       -      -
    397U  HIS*     3.3    31.0    +      -       -      +
    398U  THR*     3.5    11.6    +      -       -      +
    458U  ATP      3.5    57.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 395 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324T  GLN*     5.3     3.8    +      -       -      -
    330T  ARG*     5.9     2.8    -      -       -      +
    341U  PHE*     4.7     2.2    -      -       +      -
    381U  ALA*     3.1    28.9    -      -       +      +
    384U  VAL*     3.2    31.9    -      -       -      +
    385U  ASN*     2.7    19.9    -      -       -      +
    388U  THR*     4.6     5.5    +      -       -      -
    389U  GLU*     3.1    30.5    +      -       -      +
    391U  ILE*     3.3    28.3    -      -       +      +
    392U  GLY      2.8    17.7    +      -       -      +
    393U  ALA      2.6     5.7    +      -       -      -
    394U  ARG*     1.3    72.1    -      -       -      +
    396U  LEU*     1.3    64.3    +      -       -      +
    398U  THR*     2.5    34.8    +      -       -      +
    399U  VAL*     2.9    18.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 396 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341U  PHE*     3.3    44.4    -      -       +      +
    344U  ILE*     4.0    26.9    -      -       +      -
    345U  LEU*     3.8    26.2    -      -       +      -
    352U  LEU*     3.5    17.7    -      -       +      -
    377U  ILE*     3.9    12.6    -      -       +      +
    381U  ALA*     3.7    13.2    -      -       +      -
    393U  ALA*     2.5    22.5    +      -       +      +
    395U  ARG*     1.3    72.3    -      -       -      +
    397U  HIS*     1.3    65.4    +      -       +      +
    399U  VAL*     2.7    18.3    +      -       +      +
    400U  MET*     2.8    16.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 397 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51T  LYS*     5.3    15.3    -      -       +      +
    325T  GLY      4.5     6.5    +      -       -      -
    326T  ARG*     5.5     7.9    -      -       -      -
    328T  PRO*     4.2    15.8    -      -       +      +
    352U  LEU*     3.6    35.0    -      -       +      +
    355U  GLN*     5.8     0.6    +      -       -      -
    356U  TYR*     5.2     1.9    +      -       -      -
    393U  ALA*     4.5     8.3    +      -       -      +
    394U  ARG*     3.5    22.0    +      -       +      +
    395U  ARG      3.3     0.4    -      -       -      -
    396U  LEU*     1.3    77.6    -      -       +      +
    398U  THR*     1.3    62.4    +      -       -      +
    400U  MET*     3.2     4.2    +      -       -      +
    401U  GLU*     3.0    24.4    +      -       -      +
    458U  ATP      4.0    27.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 398 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324T  GLN      4.0    14.8    -      -       -      +
    325T  GLY*     4.4     2.7    -      -       -      -
    328T  PRO*     3.5    44.9    -      -       +      +
    330T  ARG*     5.2     4.0    -      -       -      +
    391U  ILE*     4.9     4.3    -      -       +      -
    394U  ARG      3.6    13.0    -      -       -      +
    395U  ARG*     2.5    39.0    +      -       -      +
    397U  HIS*     1.3    74.8    -      -       -      +
    399U  VAL*     1.3    62.8    +      -       -      +
    401U  GLU*     3.9     3.3    +      -       -      +
    402U  ARG*     3.6    16.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 399 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377U  ILE*     4.3    26.7    -      -       +      +
    380U  ALA*     4.7    11.7    -      -       +      +
    381U  ALA*     3.7    21.5    -      -       +      -
    384U  VAL*     5.6     2.2    -      -       +      -
    395U  ARG*     2.9    36.1    -      -       +      +
    396U  LEU*     2.7     9.8    +      -       +      +
    398U  THR*     1.3    77.3    -      -       -      +
    400U  MET*     1.3    66.6    +      -       +      +
    402U  ARG*     3.1    15.7    +      -       -      +
    403U  LEU*     3.1    12.9    +      -       +      +
    430U  LEU*     5.7    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 400 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    345U  LEU*     4.7     5.4    -      -       +      -
    352U  LEU*     3.8    35.2    -      -       +      -
    353U  THR*     4.7     6.7    -      -       +      +
    356U  TYR*     4.0    24.2    -      -       +      -
    369U  PHE*     4.0    33.0    -      -       +      -
    377U  ILE*     3.9    30.1    -      -       +      -
    396U  LEU*     2.8    19.1    +      -       -      +
    397U  HIS*     3.8     6.3    -      -       -      +
    399U  VAL*     1.3    72.8    -      -       +      +
    401U  GLU*     1.3    54.0    +      -       -      +
    403U  LEU*     2.6    40.1    +      -       +      +
    404U  MET*     2.7    23.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 401 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29T  ILE*     3.9    18.4    -      -       -      +
     33T  ASN*     5.3     5.8    +      -       -      -
     51T  LYS*     3.5    13.1    -      -       +      +
    328T  PRO*     4.4    11.9    -      -       +      +
    329T  ILE*     3.1    45.5    -      -       +      +
    356U  TYR*     2.8    29.2    +      -       -      +
    397U  HIS      3.0    17.0    +      -       -      +
    398U  THR*     3.9     9.2    -      -       -      +
    399U  VAL      3.3     0.2    -      -       -      -
    400U  MET*     1.3    76.3    -      -       -      +
    402U  ARG*     1.3    59.8    +      -       -      +
    404U  MET*     4.0     3.9    -      -       -      +
    405U  ASP*     3.4    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 402 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398U  THR      3.6     9.9    +      -       -      +
    399U  VAL*     3.1    11.3    +      -       -      +
    400U  MET      3.0     0.8    -      -       -      -
    401U  GLU*     1.3    78.1    -      -       -      +
    403U  LEU*     1.3    64.3    +      -       -      +
    405U  ASP*     3.1    34.1    +      -       -      +
    406U  LYS      4.8     0.2    +      -       -      -
    429U  ALA      4.3    11.3    +      -       -      +
    430U  LEU*     4.0    45.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 403 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369U  PHE*     5.3     0.7    -      -       +      -
    377U  ILE*     3.5    34.1    -      -       +      -
    399U  VAL*     3.1    12.8    +      -       +      +
    400U  MET*     2.6    33.0    +      -       +      +
    402U  ARG*     1.3    69.8    -      -       -      +
    404U  MET*     1.3    72.2    +      -       -      +
    405U  ASP      3.0     9.2    +      -       -      -
    406U  LYS*     3.9     8.5    +      -       -      +
    407U  ILE*     4.5     2.4    -      -       -      +
    421U  ILE*     4.8     8.7    -      -       +      -
    425U  TYR*     3.9    25.6    +      -       +      -
    426U  VAL*     4.2    13.0    -      -       +      -
    429U  ALA*     3.5    33.5    -      -       +      +
    430U  LEU*     5.2     5.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 404 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356U  TYR*     3.5    54.3    -      -       +      +
    360U  MET*     4.9     3.1    -      -       +      -
    367U  ILE*     4.2    12.6    -      -       +      -
    369U  PHE*     3.3    34.5    -      -       +      -
    400U  MET*     2.7    25.1    +      -       +      +
    401U  GLU*     4.0     5.2    -      -       -      +
    403U  LEU*     1.3    87.1    -      -       -      +
    405U  ASP*     1.3    56.9    +      -       -      +
    406U  LYS      3.3     2.0    -      -       -      -
    407U  ILE*     3.4    26.5    -      -       +      -
    408U  SER*     3.0    32.0    +      -       -      -
    421U  ILE*     4.3     7.9    -      -       +      -
----------------------------------------------------------
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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