Contacts of the strand formed by residues 225 - 233 (chain A) in PDB entry 3NIA


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 VAL 225 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ILE*     4.0    27.6    -      -       +      -
    223A  ASP      3.6     5.8    +      -       -      +
    224A  TRP*     1.3    70.3    -      -       -      +
    226A  VAL*     1.3    62.2    +      -       -      +
    243A  PHE*     4.4     9.4    -      -       +      -
    244A  PHE*     3.1     3.6    -      -       -      -
    245A  LYS*     2.8    55.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ILE*     3.6    14.6    -      -       -      +
    216A  LEU*     6.2     0.2    -      -       +      -
    217A  ARG*     3.6    40.6    +      -       +      +
    220A  PHE*     3.5    43.1    -      -       +      -
    221A  PRO      5.5     0.2    -      -       -      +
    224A  TRP*     3.4    21.3    +      -       +      +
    225A  VAL*     1.3    81.3    -      -       -      +
    227A  GLY*     1.3    68.7    +      -       -      +
    228A  GLU*     4.5     6.7    -      -       +      -
    243A  PHE*     3.3    14.6    -      -       -      +
    244A  PHE*     3.5     9.6    -      -       +      -
    253A  VAL*     6.3     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  LEU*     3.4    26.9    -      -       -      -
    207A  ILE      3.7     2.5    -      -       -      -
    217A  ARG*     4.8     0.7    -      -       -      -
    226A  VAL*     1.3    74.7    -      -       -      +
    228A  GLU*     1.3    65.6    +      -       -      +
    242A  GLY*     3.3     0.9    -      -       -      -
    243A  PHE*     2.9    46.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  LEU*     3.3    19.0    +      -       -      +
    209A  ASN*     3.2    33.5    +      -       -      +
    212A  GLY*     3.7     6.1    -      -       -      -
    216A  LEU*     5.0     7.9    -      -       +      -
    217A  ARG*     3.1    38.9    +      -       +      -
    226A  VAL*     4.5    12.6    -      -       +      -
    227A  GLY*     1.3    78.2    -      -       -      +
    229A  LYS*     1.3    60.1    +      -       -      +
    230A  THR*     3.5    13.7    -      -       -      +
    240A  ASP*     2.5    38.3    -      -       -      +
    241A  ILE      3.1    18.2    -      -       -      +
    242A  GLY*     3.9     2.2    -      -       -      -
    253A  VAL*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  SER*     3.3    25.8    -      -       -      +
     65A  THR*     3.7    14.3    -      -       -      +
     67A  LYS*     3.8     6.5    -      -       +      -
     68A  PHE*     4.0    22.2    -      -       +      +
    121A  ALA      3.5    21.8    -      -       -      -
    122A  VAL*     3.4    28.5    +      -       +      +
    125A  SER*     2.9    25.8    +      -       -      -
    206A  LEU*     4.0     4.9    -      -       +      +
    209A  ASN*     4.7     1.3    -      -       -      +
    211A  THR*     4.4     2.6    +      -       -      -
    228A  GLU*     1.3    73.7    -      -       -      +
    230A  THR*     1.3    87.3    +      -       -      +
    240A  ASP*     3.4     4.9    -      -       -      -
    241A  ILE*     2.8    35.6    +      -       +      +
    289A  TF7      3.2     7.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  SER*     3.3    12.3    -      -       -      -
     65A  THR*     4.0     2.7    -      -       -      -
    211A  THR*     2.7    32.1    +      -       -      +
    212A  GLY*     3.8     1.8    -      -       -      -
    215A  THR*     3.4    26.0    -      -       -      +
    228A  GLU*     3.5    14.8    -      -       -      +
    229A  LYS*     1.3    96.4    +      -       -      +
    231A  GLY*     1.3    59.6    +      -       -      +
    238A  ARG*     3.7    15.5    -      -       -      +
    239A  ASN      3.3     6.7    -      -       -      +
    240A  ASP*     3.6     5.4    -      -       -      +
    289A  TF7      2.7    25.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  SER      3.9     9.2    -      -       -      -
     65A  THR*     3.9     7.4    -      -       -      +
    230A  THR*     1.3    76.3    -      -       -      +
    232A  THR*     1.3    60.1    +      -       -      -
    238A  ARG*     3.4     9.1    +      -       -      -
    239A  ASN*     2.9    39.3    +      -       -      -
    288A  TBE      3.4     8.7    -      -       -      -
    289A  TF7      3.1     9.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  CYS*     3.6     4.9    -      -       -      +
    165A  ASN*     4.2     1.4    -      -       -      +
    231A  GLY*     1.3    70.2    -      -       -      -
    233A  CYS*     1.3    67.7    +      -       -      +
    237A  GLY      3.4    11.9    -      -       -      +
    238A  ARG*     3.0    22.5    +      -       -      +
    267A  ARG*     6.3     2.9    -      -       -      +
    288A  TBE      2.9    56.3    +      -       -      +
    289A  TF7      2.8    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ALA*     3.8    12.8    -      -       -      -
     63A  CYS*     2.0    48.5    -      -       -      -
    165A  ASN*     3.7     2.2    -      -       -      -
    167A  ASN*     3.8    11.9    -      -       +      +
    232A  THR*     1.3    78.9    -      -       -      +
    234A  ALA*     1.3    72.9    +      -       -      +
    236A  GLY*     3.6     2.8    +      -       -      -
    237A  GLY*     3.0    32.2    +      -       -      +
    239A  ASN*     3.6    20.4    -      -       -      -
    288A  TBE      5.4     2.5    -      -       -      -
----------------------------------------------------------
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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