Contacts of the strand formed by residues 27 - 37 (chain B) in PDB entry 1HCN


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 ILE 27 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  VAL*     2.6    41.2    +      -       -      +
     25B  VAL*     3.4    18.6    +      -       +      +
     26B  CYS*     1.3    72.7    -      -       -      +
     28B  THR*     1.3    62.2    +      -       -      +
     29B  VAL*     3.9    10.3    -      -       +      -
     67B  ILE*     3.4    29.4    -      -       +      -
     68B  ARG      5.0     0.2    -      -       -      +
     69B  LEU*     3.7    12.3    -      -       +      -
     70B  PRO*     3.4    36.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  THR*     4.2    17.4    +      -       -      +
     16B  LEU      3.3     9.9    -      -       -      -
     17B  ALA*     4.1     5.4    -      -       +      +
     26B  CYS      4.2     2.9    -      -       -      +
     27B  ILE*     1.3    77.2    -      -       -      +
     29B  VAL*     1.3    62.3    +      -       -      +
     30B  ASN*     3.7     7.6    +      -       -      -
    108B  LEU      5.8     0.9    -      -       -      -
    110B  CYS*     3.5    26.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  THR*     3.0     9.5    -      -       -      -
     16B  LEU*     2.7    46.7    +      -       +      +
     18B  VAL*     3.4    21.5    -      -       +      -
     27B  ILE*     3.4     5.6    +      -       +      -
     28B  THR*     1.3    71.2    -      -       -      +
     30B  ASN*     1.3    70.2    +      -       -      +
     31B  THR*     4.8     0.2    -      -       -      -
     67B  ILE*     3.8    26.0    -      -       +      -
     82B  TYR*     3.6    49.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  ALA      3.7     5.2    -      -       -      +
     15B  THR*     3.6    19.4    -      -       -      +
     28B  THR*     3.7    10.3    +      -       -      -
     29B  VAL*     1.3    83.6    +      -       -      +
     31B  THR*     1.3    63.7    +      -       -      +
     65B  GLU*     5.3     0.5    -      -       -      +
     82B  TYR*     3.8    15.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13B  ASN*     3.4     7.7    -      -       -      +
     14B  ALA      2.9    28.8    +      -       -      +
     16B  LEU*     3.6    37.2    -      -       +      -
     30B  ASN*     1.3    77.8    -      -       -      +
     32B  THR*     1.3    69.6    +      -       -      +
     33B  ILE*     3.6    15.3    -      -       +      -
     82B  TYR*     3.9     9.9    -      -       -      -
     83B  ALA      2.7    23.5    +      -       -      +
     84B  VAL*     3.3    16.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  PRO*     4.4     5.6    -      -       +      -
     12B  ILE      3.0    15.7    -      -       -      +
     13B  ASN*     3.1    26.7    -      -       -      +
     31B  THR*     1.3    84.7    +      -       -      +
     33B  ILE*     1.3    66.9    +      -       -      +
     59B  TYR*     4.0     5.9    +      -       -      -
     83B  ALA      4.4     0.7    -      -       -      +
     84B  VAL*     3.4    11.9    -      -       +      +
     85B  ALA*     3.0    57.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  ARG*     5.0     5.6    -      -       +      +
     36A  ALA      3.5     8.1    -      -       -      +
     37A  TYR*     3.2    31.6    -      -       +      -
     38A  PRO*     3.8    13.9    -      -       +      -
     11B  PRO*     3.3     7.1    -      -       -      +
     12B  ILE*     2.8    43.6    +      -       +      -
     14B  ALA*     4.1    16.4    -      -       +      -
     16B  LEU*     3.9     2.5    -      -       +      -
     31B  THR*     3.6    26.9    -      -       +      -
     32B  THR*     1.3    74.1    -      -       -      +
     34B  CYS*     1.3    74.2    +      -       -      +
     35B  ALA*     4.7     1.1    -      -       +      -
     59B  TYR*     4.3     2.9    -      -       -      -
     85B  ALA*     3.9     1.9    -      -       -      +
    108B  LEU*     3.6    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  ARG*     3.0     4.3    -      -       -      +
     36A  ALA*     2.7    55.4    +      -       +      +
     33B  ILE*     1.3    72.5    -      -       -      +
     35B  ALA*     1.3    63.0    +      -       -      +
     57B  CYS*     3.8     8.7    -      -       -      -
     58B  ASN      3.6    10.3    -      -       -      -
     59B  TYR*     3.6    20.4    -      -       -      -
     85B  ALA*     3.8    12.3    -      -       -      -
     88B  CYS*     2.0    50.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 35 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     3.8    21.8    -      -       +      -
     34A  SER      3.3     7.0    -      -       -      +
     35A  ARG*     4.0     4.9    -      -       +      -
     10B  ARG*     2.7    42.1    +      -       -      +
     12B  ILE*     3.7    30.0    -      -       +      +
     33B  ILE*     4.1     1.1    -      -       +      -
     34B  CYS*     1.3    77.4    -      -       -      +
     36B  GLY*     1.3    59.2    +      -       -      +
     57B  CYS*     3.6     6.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     3.1    11.2    -      -       -      -
     34A  SER*     2.9    33.9    +      -       -      +
      7B  PRO      3.1    13.5    -      -       -      -
      9B  CYS*     3.8     7.6    -      -       -      -
     10B  ARG*     3.2     8.1    -      -       -      -
     35B  ALA*     1.3    78.4    -      -       -      +
     37B  TYR*     1.3    66.5    +      -       -      -
     57B  CYS*     3.9     0.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  CYS*     3.7    19.8    -      -       +      -
     31A  CYS*     3.6     6.5    -      -       +      -
     32A  CYS*     3.0    41.3    -      -       -      -
     33A  PHE*     3.7    21.4    -      +       +      +
     84A  CYS*     5.6     2.0    -      -       -      -
      5B  LEU      3.9     6.9    +      -       -      -
      6B  ARG*     3.3    44.4    -      -       +      -
      7B  PRO*     2.7    30.3    +      -       +      +
      8B  ARG*     3.1    15.1    -      -       -      +
      9B  CYS      3.1    17.3    +      -       -      +
     36B  GLY*     1.3    77.4    -      -       -      -
     38B  CYS*     1.3    64.3    +      -       -      +
----------------------------------------------------------
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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