Contacts of the strand formed by residues 604 - 609 (chain A) in PDB entry 3IAY


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 604 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600A  TYR*     4.0    21.1    -      -       +      -
    602A  VAL      3.7     9.6    -      -       -      +
    603A  PRO*     1.3    81.7    -      -       -      +
    605A  ALA*     1.3    62.2    +      -       -      +
    606A  THR*     3.7     2.9    +      -       -      +
    759A  VAL*     4.4     5.6    -      -       +      -
    767A  MET*     3.6    37.0    -      -       +      -
    768A  VAL      3.5     6.5    -      -       -      +
    769A  LYS*     3.8    29.8    -      -       +      +
    804A  ALA*     3.2     5.8    -      -       -      -
    805A  TYR*     2.8    42.7    +      -       +      +
    808A  TYR*     3.8    35.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 605 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    603A  PRO      4.1     1.2    -      -       -      -
    604A  ILE*     1.3    72.1    -      -       -      +
    606A  THR*     1.3    60.8    +      -       -      +
    607A  LEU*     3.9     2.8    +      -       +      +
    766A  VAL      3.4     3.3    -      -       -      +
    767A  MET*     3.5     0.9    -      -       -      -
    768A  VAL*     2.8    39.0    +      -       +      +
    770A  PHE*     3.7    31.4    -      -       +      -
    778A  ALA*     3.9    17.9    -      -       +      +
    782A  GLY*     4.2     5.6    -      -       -      -
    801A  PHE*     4.0    13.9    -      -       +      -
    803A  LYS      4.0     3.4    -      -       -      -
    804A  ALA*     4.4     2.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 606 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    604A  ILE      3.7     1.1    +      -       -      -
    605A  ALA*     1.3    72.0    -      -       -      +
    607A  LEU*     1.3    61.8    +      -       -      +
    765A  SER*     4.6     4.9    -      -       -      -
    766A  VAL      3.5     6.5    -      -       -      +
    767A  MET*     3.7    30.2    -      -       +      +
    801A  PHE*     3.7     3.7    -      -       -      -
    802A  GLU*     2.8    40.5    +      -       -      +
    803A  LYS*     2.8    45.5    +      -       -      +
    805A  TYR*     3.5    26.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 607 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  ALA*     4.6     5.8    -      -       +      +
    606A  THR*     1.3    82.6    -      -       -      +
    608A  ASP*     1.3    60.7    +      -       -      +
    742A  VAL*     4.5     6.5    -      -       +      -
    765A  SER*     3.0     6.5    -      -       -      -
    766A  VAL*     2.9    52.9    +      -       +      +
    768A  VAL*     4.5    12.6    -      -       +      -
    770A  PHE*     5.6     0.7    -      -       +      -
    782A  GLY*     3.5    30.7    -      -       -      +
    785A  ALA*     4.2    11.4    -      -       +      -
    786A  ALA*     4.2    13.2    -      -       +      +
    799A  LEU*     3.9    28.4    -      -       +      +
    800A  GLU      3.3     7.0    -      -       -      +
    801A  PHE*     3.8    14.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 608 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A   CA      2.4    29.1    -      -       -      -
      2A   CA      3.5     9.2    -      -       -      -
      3A   CA      2.6    17.0    -      -       -      -
    606A  THR      4.4     0.2    +      -       -      -
    607A  LEU*     1.3    76.3    -      -       -      +
    609A  PHE*     1.3    61.0    +      -       -      +
    610A  ASN      3.6     0.9    +      -       -      -
    764A  ASP      3.2    13.7    -      -       -      +
    765A  SER*     3.6    12.3    -      -       -      -
    799A  LEU*     3.4     7.5    -      -       -      +
    800A  GLU*     2.9    33.1    +      -       -      +
    802A  GLU*     2.6    41.5    -      -       -      +
    986A  DCP      3.2     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 609 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A   CA      2.2    31.7    -      -       -      -
    608A  ASP*     1.3    73.5    -      -       -      +
    610A  ASN*     1.3    62.3    +      -       -      +
    612A  LEU*     3.6    33.2    -      -       +      -
    615A  SER*     5.6     0.2    -      -       -      +
    734A  MET*     3.8    19.1    -      -       +      -
    735A  ILE*     5.0     2.7    -      -       -      -
    738A  THR*     3.3    29.8    -      -       +      -
    764A  ASP*     3.1    34.9    +      -       +      +
    789A  VAL*     4.7     0.2    -      -       +      -
    790A  SER*     5.9     0.2    -      -       -      -
    793A  PHE*     3.7    19.3    -      +       -      -
    797A  ILE*     3.6    30.1    -      -       +      -
    798A  ASN      3.4    17.9    -      -       -      +
    799A  LEU*     3.7    24.9    -      -       +      -
    986A  DCP      3.1     2.4    +      -       -      -
----------------------------------------------------------
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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