Contacts of the strand formed by residues 187 - 195 (chain A) in PDB entry 3AB0


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 SER 187 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  PHE      3.9     0.2    -      -       -      +
    127A  VAL*     3.6     2.9    -      -       -      +
    128A  ILE*     2.7    45.9    +      -       -      +
    155A  VAL*     4.1     3.8    -      -       -      -
    156A  ASN*     3.3    19.6    +      -       -      +
    182A  ILE*     3.4    39.3    -      -       -      +
    183A  THR      5.1     0.2    +      -       -      -
    184A  THR*     2.7    23.5    +      -       -      -
    186A  PRO*     1.3    73.8    -      -       -      +
    188A  LEU*     1.3    62.4    +      -       -      +
    189A  VAL      4.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  THR*     4.2    10.5    -      -       +      -
    126A  PHE      3.3     4.5    -      -       -      +
    127A  VAL*     4.0    22.7    -      -       +      -
    154A  GLN      3.1     6.1    -      -       -      +
    155A  VAL*     3.4     1.4    -      -       -      -
    156A  ASN*     2.7    42.8    +      -       -      +
    157A  GLY      4.4     0.6    +      -       -      +
    186A  PRO      4.7     7.2    -      -       -      +
    187A  SER*     1.3    77.5    -      -       -      +
    189A  VAL*     1.3    62.3    +      -       -      +
    190A  GLU*     4.9     4.7    -      -       +      +
    101B  TRP*     3.7    24.2    -      -       +      +
     91C  TYR*     3.4    41.7    -      -       +      +
     92C  HIS*     3.7    19.5    -      -       +      +
     94C  TYR*     4.7    13.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  THR*     3.9     0.4    -      -       -      -
    126A  PHE*     2.7    46.2    +      -       +      +
    128A  ILE*     3.5    33.7    -      -       +      -
    136A  ILE*     3.9    24.9    -      -       +      -
    153A  ILE*     4.1    13.2    -      -       +      -
    154A  GLN      3.8     2.5    -      -       -      -
    155A  VAL*     4.1    14.6    -      -       +      -
    187A  SER      4.0     0.6    +      -       -      +
    188A  LEU*     1.3    74.8    -      -       -      +
    190A  GLU*     1.3    65.3    -      -       -      +
    208A  ILE*     4.6     9.0    -      -       +      -
    210A  ILE*     3.8    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  PRO*     4.7     9.7    -      -       +      +
    124A  ASP*     3.4    21.0    -      -       -      +
    125A  THR*     3.4    28.6    +      -       +      +
    126A  PHE*     5.0     2.5    -      -       -      -
    153A  ILE*     4.3     0.2    -      -       -      +
    154A  GLN*     2.8    44.6    +      -       +      +
    188A  LEU*     4.9     4.0    -      -       +      +
    189A  VAL*     1.3    78.4    -      -       -      +
    191A  VAL*     1.3    65.9    +      -       -      +
    192A  ILE*     3.9    22.2    -      -       +      +
     50C  ARG*     5.0     4.3    +      -       -      -
     91C  TYR*     3.8    10.8    +      -       -      -
     92C  HIS*     2.8    36.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  PRO*     3.3     1.9    -      -       -      +
    105A  VAL*     2.7    53.9    +      -       +      +
    107A  PHE*     3.9    15.4    -      -       +      -
    124A  ASP      4.9     1.6    +      -       -      -
    126A  PHE*     5.8     0.2    -      -       +      -
    138A  VAL*     3.9    28.9    -      -       +      -
    151A  LEU*     4.3    15.7    -      -       +      -
    152A  THR      3.3    18.2    -      -       -      +
    153A  ILE*     4.7     6.3    -      -       +      +
    176A  ILE*     4.7     3.8    -      -       +      -
    190A  GLU*     1.3    74.0    -      -       -      +
    192A  ILE*     1.3    60.5    +      -       -      +
    208A  ILE*     3.9    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ASN*     3.4    38.4    -      -       -      +
    103A  ASP      3.7     0.2    -      -       -      -
    104A  PRO*     3.5    28.0    -      -       +      -
    151A  LEU*     3.4     4.3    -      -       -      -
    152A  THR*     2.8    38.8    +      -       +      +
    154A  GLN*     3.3    49.1    -      -       +      +
    190A  GLU*     4.1    19.1    -      -       -      +
    191A  VAL*     1.3    72.9    -      -       -      +
    193A  VAL*     1.3    76.2    +      -       -      +
    194A  THR*     3.5     2.8    +      -       +      -
     32C  TYR*     3.8     4.3    -      -       +      +
     50C  ARG*     4.9     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  LEU*     3.5    32.3    -      -       +      -
    100A  GLY      3.8    12.3    -      -       -      +
    101A  ILE*     4.5     0.8    -      -       -      -
    102A  ASN*     3.1    23.0    +      -       -      -
    103A  ASP      2.9    23.3    +      -       -      +
    105A  VAL*     4.5     2.2    -      -       +      -
    150A  GLY      3.5     7.6    -      -       -      +
    151A  LEU*     3.7    15.3    -      -       +      -
    192A  ILE*     1.3    78.9    -      -       -      +
    194A  THR*     1.3    73.8    -      -       -      +
    197A  GLY*     3.7    23.6    -      -       -      -
    198A  LEU*     3.8    13.0    -      -       +      +
     70F  SER*     4.4     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  ILE*     5.9     0.4    -      -       -      +
    149A  GLY*     3.5     2.6    -      -       -      -
    150A  GLY*     2.7    47.7    +      -       -      +
    151A  LEU*     3.3     6.1    +      -       -      -
    152A  THR*     3.9    15.9    -      -       +      -
    154A  GLN*     5.5     0.7    -      -       -      +
    164A  GLY*     5.6     1.6    -      -       -      -
    165A  SER      4.9     1.0    +      -       -      -
    166A  SER*     5.6     0.7    +      -       -      -
    192A  ILE*     3.5     3.6    +      -       +      +
    193A  VAL*     1.3    86.3    -      -       -      +
    195A  GLY*     1.3    63.0    +      -       -      +
     25F  SER*     4.7     5.3    -      -       -      -
     69F  THR*     3.2    39.3    -      -       -      +
     70F  SER*     3.7    17.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  ILE*     3.3    18.9    -      -       -      +
    148A  LEU      4.4     1.6    -      -       -      -
    149A  GLY*     3.8     9.6    -      -       -      -
    150A  GLY      4.0     1.1    -      -       -      -
    194A  THR*     1.3    74.6    +      -       -      +
    196A  LEU*     1.3    57.5    +      -       -      -
    197A  GLY      2.9    12.4    +      -       -      -
      8F  SER*     5.7     0.9    -      -       -      -
     23F  SER*     3.2    25.4    +      -       -      -
     25F  SER*     4.4    10.8    -      -       -      -
     70F  SER*     4.0     9.4    -      -       -      -
----------------------------------------------------------
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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