Contacts of the strand formed by residues 340 - 347 (chain A) in PDB entry 2HD5


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 CYS 340 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  ASP*     5.3     3.7    -      -       -      +
    331A  SER*     3.7    27.4    -      -       -      -
    332A  LEU      3.3     4.3    -      -       -      -
    333A  THR*     3.4    23.3    -      -       +      +
    338A  GLY      3.4     3.4    +      -       -      +
    339A  TYR*     1.3    93.8    +      -       -      +
    341A  SER*     1.3    59.6    +      -       -      +
    342A  THR*     3.7    14.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 341 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  SER      3.6     1.4    -      -       -      +
    331A  SER*     3.6     1.4    -      -       -      -
    332A  LEU*     2.6    48.0    +      -       -      +
    339A  TYR*     3.7    24.8    +      -       -      -
    340A  CYS*     1.3    72.5    -      -       -      +
    342A  THR*     1.3    60.9    +      -       -      +
    343A  VAL*     5.3     0.7    -      -       -      +
    382A  CYS*     4.8     7.2    -      -       -      -
     64B  GLU*     2.8    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 342 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  LYS*     2.5    67.4    +      -       +      +
    329A  LYS*     3.7    20.4    -      -       +      -
    330A  SER      3.3     3.8    -      -       -      +
    331A  SER*     3.7    12.3    +      -       -      -
    339A  TYR*     5.4     1.2    +      -       -      -
    340A  CYS*     3.7    11.2    +      -       -      -
    341A  SER*     1.3    75.7    +      -       -      +
    343A  VAL*     1.3    68.7    +      -       -      +
    344A  PHE*     3.3    34.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 343 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  LYS*     4.8     5.2    -      -       +      -
    329A  LYS*     3.6     2.1    -      -       -      -
    330A  SER*     2.7    51.5    +      -       -      +
    341A  SER*     5.3     1.1    -      -       -      +
    342A  THR*     1.3    79.3    -      -       -      +
    344A  PHE*     1.3    67.6    +      -       -      +
    345A  ASP*     4.3    12.9    +      -       -      +
     62B  GLN*     6.0     2.5    -      -       +      -
     63B  LYS      3.6    22.0    -      -       -      +
     64B  GLU*     3.4    39.9    -      -       +      +
     65B  SER*     4.7     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 344 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  MET*     3.4    88.9    +      -       +      +
    327A  GLN*     3.4    28.0    +      -       -      +
    328A  LEU      3.2    14.8    -      -       -      +
    329A  LYS*     3.6    16.2    -      -       +      -
    342A  THR*     3.3    27.4    -      -       +      -
    343A  VAL*     1.3    79.5    -      -       -      +
    345A  ASP*     1.3    65.1    +      -       -      +
    346A  PRO*     4.2     4.2    -      -       -      +
    396A  GLN*     3.3    33.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 345 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  GLN*     4.4     2.9    -      -       -      -
    328A  LEU*     2.8    42.9    +      -       +      +
    330A  SER*     5.3     1.4    -      -       -      -
    343A  VAL*     4.4    10.9    +      -       -      +
    344A  PHE*     1.3    79.1    -      -       -      +
    346A  PRO*     1.3    75.0    -      -       +      +
    393A  PHE*     4.7     7.5    -      -       -      -
     45B  PHE*     3.6    20.5    -      -       +      -
     65B  SER*     3.4    22.0    +      -       -      -
     66B  THR*     3.1    32.4    +      -       -      +
     68B  HIS*     5.5     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 346 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  TRP*     4.4     5.6    -      -       +      +
    314A  TYR*     3.5    59.0    -      -       +      +
    315A  ARG*     5.7     0.2    -      -       -      +
    325A  VAL*     4.4     2.2    -      -       +      -
    326A  GLY      3.3    12.3    -      -       -      +
    327A  GLN*     4.3     2.4    -      -       +      -
    328A  LEU*     5.5     0.2    -      -       -      +
    344A  PHE      4.2     4.7    -      -       -      +
    345A  ASP*     1.3    92.3    -      -       +      +
    347A  PHE*     1.3    61.0    +      -       -      +
    348A  TRP*     5.4     0.2    -      -       +      -
     45B  PHE*     4.8     6.3    -      -       +      -
     46B  ALA*     3.2    35.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 347 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  VAL*     3.3     3.6    -      -       -      +
    326A  GLY*     2.8    49.0    +      -       -      -
    327A  GLN      3.3    27.4    -      -       -      -
    328A  LEU*     3.6    33.9    -      -       +      -
    346A  PRO*     1.3    74.5    -      -       -      +
    348A  TRP*     1.3    65.2    +      -       -      +
    349A  ASP*     3.4    29.8    -      -       -      +
    350A  LEU*     3.7    26.9    -      -       +      -
    395A  ILE*     4.4    10.5    -      -       +      -
    397A  ARG      4.0     3.1    -      -       -      -
    399A  PRO*     3.9    30.1    -      -       +      -
    402A  LEU*     4.1     7.6    -      -       +      -
     46B  ALA*     4.4     4.5    -      -       -      +
     47B  GLY      4.5     1.1    -      -       -      +
     68B  HIS*     6.2     1.8    -      -       +      +
----------------------------------------------------------
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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