Contacts of the strand formed by residues 671 - 676 (chain N) in PDB entry 2AS5


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 GLN 671 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    580N  VAL*     3.5    37.9    +      -       +      +
    583N  GLN*     3.1    27.0    +      -       -      +
    657N  ASN*     3.1    14.3    -      -       -      +
    658N  PHE*     2.7    59.2    +      -       +      +
    659N  TYR*     5.4     0.2    -      -       -      -
    668N  SER*     5.1     0.3    +      -       -      -
    669N  GLN*     3.4    12.0    +      -       -      +
    670N  PRO*     1.3    78.5    +      -       -      +
    672N  HIS*     1.3    65.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 672 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    583N  GLN*     3.3    29.5    +      -       -      +
    586N  ASP*     4.7     1.0    -      -       -      +
    655N  LYS*     3.9    19.5    +      -       +      +
    656N  VAL      4.0     1.3    -      -       -      -
    657N  ASN*     3.5    15.9    +      -       -      -
    658N  PHE*     3.5     2.3    -      -       -      -
    670N  PRO*     5.1     7.6    +      -       +      -
    671N  GLN*     1.3    80.4    -      -       -      +
    673N  PHE*     1.3    64.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 673 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585N  THR      4.1     8.5    -      -       -      -
    586N  ASP*     3.2    25.4    -      -       -      -
    587N  SER*     3.0    30.3    -      -       -      -
    588N  CYS*     3.9     0.7    -      -       -      -
    596N  MET*     4.1    12.8    -      -       -      -
    611N  PHE*     3.7    19.3    -      +       -      -
    642N  ILE*     3.3    34.5    -      -       +      -
    655N  LYS*     3.2     8.4    +      -       -      +
    656N  VAL*     2.8    43.8    +      -       +      +
    658N  PHE*     3.9    15.5    -      +       +      -
    672N  HIS*     1.3    77.3    -      -       -      +
    674N  THR*     1.3    82.6    +      -       -      +
    675N  TYR*     3.9    28.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with THR 674 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586N  ASP*     3.0    10.8    +      -       -      -
    587N  SER*     2.9    48.0    -      -       -      -
    588N  CYS      3.3     2.3    +      -       -      -
    653N  PRO*     5.6     1.6    -      -       +      -
    654N  VAL      3.0    21.3    -      -       -      +
    655N  LYS*     3.1    38.8    -      -       +      +
    656N  VAL      4.6     0.9    -      -       -      +
    673N  PHE*     1.3    79.1    -      -       -      +
    675N  TYR*     1.3    59.1    +      -       -      +
    676N  HIS*     4.3    13.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 675 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588N  CYS*     3.3     6.1    -      -       -      -
    589N  LEU      3.8    16.8    -      -       -      -
    590N  VAL*     4.1    17.6    -      -       +      +
    592N  GLY*     5.1     0.4    -      -       -      -
    611N  PHE*     4.0     3.1    -      -       -      -
    622N  TRP*     3.6    26.1    -      +       -      -
    642N  ILE*     3.4    19.3    -      -       +      +
    643N  PRO*     2.6    47.5    +      -       -      +
    644N  GLU*     5.0     0.4    -      -       -      -
    645N  TYR*     3.8    24.5    -      +       +      -
    650N  ILE*     5.5     0.5    -      -       -      +
    652N  THR      4.7     0.3    -      -       -      +
    653N  PRO*     3.4     4.2    -      -       -      +
    654N  VAL*     3.1    39.0    +      -       +      +
    656N  VAL*     3.7    28.3    -      -       +      -
    673N  PHE*     3.9    12.3    -      +       -      -
    674N  THR*     1.3    73.6    -      -       -      +
    676N  HIS*     1.3    61.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 676 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    587N  SER*     4.1    19.1    +      -       -      -
    588N  CYS*     2.6    22.4    +      -       -      +
    589N  LEU*     3.1     9.9    -      -       +      +
    590N  VAL*     2.8    32.7    +      -       -      +
    650N  ILE*     5.0     0.2    -      -       -      -
    653N  PRO*     3.6    24.6    -      -       +      +
    674N  THR*     4.3    16.5    +      -       -      -
    675N  TYR*     1.3    76.4    -      -       -      +
    677N  PRO*     1.3    72.8    -      -       +      +
----------------------------------------------------------
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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