Contacts of the helix formed by residues 387 - 398 (chain B) in PDB entry 1OH7


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 387 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  GLN*     4.6    10.8    -      -       -      -
    327B  THR*     4.7     2.7    +      -       -      -
    330B  ALA*     3.9    18.3    -      -       -      +
    385B  VAL*     3.1     3.3    +      -       -      +
    386B  ASP*     1.3    78.7    -      -       -      +
    388B  ALA*     1.3    63.7    +      -       -      +
    389B  PRO*     3.8     8.9    -      -       -      +
    390B  VAL*     3.2    32.6    +      -       -      +
    391B  GLN*     3.3    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 388 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    387B  SER*     1.3    71.9    -      -       -      +
    389B  PRO*     1.3    65.9    -      -       +      +
    391B  GLN*     3.4     9.5    +      -       -      +
    392B  ALA*     3.0    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 389 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323B  GLU*     3.6    35.7    -      -       +      +
    326B  GLN*     5.6     7.0    -      -       +      +
    327B  THR*     3.6    19.5    -      -       +      +
    387B  SER*     3.3    12.3    -      -       -      +
    388B  ALA*     1.3    92.7    -      -       +      +
    390B  VAL*     1.3    59.2    +      -       -      +
    392B  ALA*     3.1     8.2    +      -       +      +
    393B  LEU*     2.9    35.5    +      -       +      +
    555B  LEU*     6.4     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 390 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327B  THR*     3.6    26.9    -      -       +      +
    331B  LEU*     3.9    13.5    -      -       +      -
    382B  LEU*     3.7    31.5    -      -       +      +
    385B  VAL*     3.7    30.1    -      -       +      -
    387B  SER*     3.2    22.9    +      -       -      +
    389B  PRO*     1.3    75.5    -      -       -      +
    391B  GLN*     1.3    62.3    -      -       -      +
    393B  LEU*     3.5    10.8    +      -       +      +
    394B  ARG*     3.0    24.4    +      -       -      +
    552B  LEU*     5.0     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 391 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382B  LEU      2.8    24.8    +      -       -      -
    383B  GLU*     3.8    13.3    +      -       -      +
    385B  VAL*     2.8    28.0    +      -       -      +
    386B  ASP*     5.7     0.4    -      -       -      -
    387B  SER      3.3    14.9    +      -       -      +
    388B  ALA*     3.7    10.5    -      -       -      +
    389B  PRO      3.2     0.6    -      -       -      -
    390B  VAL*     1.3    76.3    -      -       -      +
    392B  ALA*     1.3    60.2    +      -       -      +
    394B  ARG*     3.6    26.2    +      -       -      +
    395B  GLU*     3.2    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 392 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388B  ALA      3.0    13.9    +      -       -      +
    389B  PRO*     3.1    11.9    +      -       +      +
    391B  GLN*     1.3    74.3    -      -       -      +
    393B  LEU*     1.3    59.0    +      -       -      +
    394B  ARG      3.1     1.9    +      -       -      -
    395B  GLU*     3.2     4.9    +      -       -      +
    396B  LYS*     2.9    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 393 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327B  THR*     5.1     3.1    -      -       +      -
    389B  PRO*     2.9    19.2    +      -       +      +
    390B  VAL*     3.7    12.8    -      -       -      +
    392B  ALA*     1.3    75.6    -      -       +      +
    394B  ARG*     1.3    56.3    +      -       -      +
    396B  LYS*     4.3    10.1    -      -       +      -
    397B  MET*     3.1    30.9    +      -       -      +
    548B  ALA*     3.8    30.1    -      -       +      +
    551B  GLU*     3.7    24.7    -      -       +      +
    552B  LEU*     3.7    37.1    -      -       +      +
    555B  LEU*     4.0    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 394 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379B  ARG*     3.0    76.4    +      -       +      +
    380B  ALA*     5.5     0.2    -      -       -      +
    382B  LEU*     4.0    24.2    -      -       +      +
    383B  GLU*     3.9    23.3    +      -       -      +
    390B  VAL      3.0    17.7    +      -       -      +
    391B  GLN*     3.6    29.9    +      -       -      +
    392B  ALA      3.1     0.2    -      -       -      -
    393B  LEU*     1.3    75.8    -      -       -      +
    395B  GLU*     1.3    69.7    +      -       -      +
    397B  MET*     3.3    30.1    -      -       +      +
    398B  GLY      3.8     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 395 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379B  ARG*     4.6    17.5    +      -       -      +
    391B  GLN      3.2    13.8    +      -       -      +
    392B  ALA*     3.2     7.4    +      -       -      +
    394B  ARG*     1.3    77.2    +      -       -      +
    396B  LYS*     1.3    68.3    +      -       -      +
    398B  GLY*     3.0    17.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 396 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392B  ALA      2.9    21.3    +      -       -      +
    393B  LEU*     4.1     8.1    -      -       +      +
    395B  GLU*     1.3    73.1    -      -       -      +
    397B  MET*     1.3    63.2    +      -       -      +
    398B  GLY*     3.3     1.9    +      -       -      -
    400B  PHE*     5.5     0.9    -      -       -      -
    541B  ALA      4.7     1.7    -      -       -      +
    544B  GLN*     3.3    51.2    -      -       +      +
    545B  SER*     3.8    12.1    +      -       -      -
    547B  SER*     3.7    20.8    +      -       -      -
    548B  ALA*     3.6    18.2    -      -       +      +
    551B  GLU*     5.5     4.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 397 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375B  LEU*     4.0    12.9    -      -       +      +
    378B  LEU*     3.7    26.9    -      -       +      -
    379B  ARG*     3.9    20.9    -      -       +      -
    382B  LEU*     3.6    30.1    -      -       +      -
    393B  LEU      3.1    17.4    +      -       -      +
    394B  ARG*     3.3    17.7    -      -       +      +
    396B  LYS*     1.3    75.0    -      -       -      +
    398B  GLY*     1.3    63.8    +      -       -      +
    400B  PHE*     3.7     1.2    -      -       -      -
    545B  SER*     2.6    32.4    +      -       -      +
    548B  ALA*     3.9     6.7    -      -       -      +
    549B  LEU*     3.5    37.9    -      -       +      +
    552B  LEU*     5.3     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 398 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375B  LEU*     3.3    17.7    -      -       -      +
    379B  ARG*     3.9    14.0    -      -       -      +
    394B  ARG      3.8     2.2    +      -       -      -
    395B  GLU      3.0    14.4    +      -       -      -
    396B  LYS      4.1     1.6    -      -       -      -
    397B  MET*     1.3    86.1    -      -       -      +
    399B  GLU*     1.3    61.4    +      -       -      +
    400B  PHE*     4.0    10.3    -      -       -      -
----------------------------------------------------------
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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