Contacts of the strand formed by residues 277 - 285 (chain C) in PDB entry 1SID


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 GLY 277 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102C  LYS*     3.9    17.2    -      -       -      +
    103C  LEU      3.4     8.7    -      -       -      -
    104C  GLN*     3.9     2.2    +      -       -      +
    169C  GLY      3.6     9.9    -      -       -      +
    273C  CYS*     2.7    33.1    -      -       -      +
    274C  LYS      3.5     1.8    +      -       -      -
    275C  GLY      3.3     3.4    -      -       -      -
    276C  GLU*     1.3    79.8    -      -       -      +
    278C  LEU*     1.3    59.9    +      -       -      -
    279C  TYR*     3.8     7.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 278 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  ILE*     4.8     4.0    -      -       +      -
    101C  ALA      3.8     0.9    -      -       -      +
    102C  LYS*     3.2     3.8    -      -       -      +
    103C  LEU*     2.7    57.6    +      -       +      +
    105C  LEU*     3.7     9.9    -      -       +      -
    122C  ALA*     5.1     3.4    -      -       +      -
    167C  VAL*     4.0    24.2    -      -       +      -
    168C  GLY      3.7     8.7    -      -       -      +
    271C  PRO*     6.5     0.2    -      -       +      -
    273C  CYS*     4.2    14.6    -      -       -      -
    277C  GLY*     1.3    74.8    -      -       -      -
    279C  TYR*     1.3    76.3    -      -       -      +
    280C  LEU*     3.9     8.8    +      -       +      -
    308C  ILE*     4.1    28.3    -      -       +      -
    310C  LEU*     3.8    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 279 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  MET*     5.2    11.2    -      -       +      -
    101C  ALA      3.7     4.9    -      -       -      +
    102C  LYS*     3.4    43.0    +      -       +      +
    166C  ALA      3.4     5.4    -      -       -      +
    167C  VAL*     3.4     0.3    -      -       -      -
    168C  GLY      2.6    45.6    +      -       -      +
    169C  GLY      3.5     9.2    -      -       -      -
    170C  GLU*     3.4    31.4    -      -       -      +
    171C  PRO*     3.3    41.5    -      -       +      +
    172C  LEU      5.2     0.2    -      -       -      +
    237C  THR*     4.6     0.8    -      -       +      +
    274C  LYS      4.4     4.7    +      -       -      -
    277C  GLY*     3.8     8.7    -      -       -      -
    278C  LEU*     1.3    78.3    -      -       -      +
    280C  LEU*     1.3    64.8    +      -       -      +
    281C  SER*     3.7     7.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 280 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  ALA*     5.1     8.3    -      -       +      -
     53C  LEU*     4.1    20.6    -      -       +      -
    100C  MET*     2.9     5.6    -      -       -      +
    101C  ALA      2.8    36.5    +      -       -      +
    103C  LEU*     3.7    27.4    -      -       +      -
    166C  ALA      3.5     3.1    -      -       -      +
    167C  VAL*     3.8    23.6    -      -       +      -
    278C  LEU*     4.0     8.3    -      -       +      -
    279C  TYR*     1.3    77.7    -      -       -      +
    281C  SER*     1.3    62.6    +      -       -      +
    306C  PHE*     3.9    32.1    -      -       +      -
    308C  ILE*     4.0    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 281 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  LEU*     4.6     0.7    -      -       -      -
     98C  TRP*     4.4     9.2    -      -       -      -
     99C  SER      3.4     6.5    -      -       -      -
    100C  MET*     3.7    11.7    -      -       -      +
    165C  PHE*     3.0     2.6    -      -       -      +
    166C  ALA*     2.6    52.7    +      -       -      +
    172C  LEU*     4.1    14.7    +      -       -      +
    216C  LEU*     3.8    16.8    -      -       -      +
    237C  THR*     4.9     0.9    -      -       -      +
    279C  TYR*     3.7     8.8    +      -       -      +
    280C  LEU*     1.3    78.7    -      -       -      +
    282C  CYS*     1.3    60.9    +      -       -      +
    306C  PHE*     4.4     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 282 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  LEU*     3.9    23.5    -      -       -      +
     55C  PRO*     6.4     1.3    -      -       -      -
     98C  TRP*     4.0     6.0    -      -       -      -
     99C  SER*     2.8    30.0    +      -       -      +
    164C  VAL      2.9    15.5    -      -       -      +
    165C  PHE*     3.3    15.0    -      -       +      +
    281C  SER*     1.3    75.0    -      -       -      +
    283C  VAL*     1.3    73.7    +      -       -      +
    284C  ASP*     3.8     9.9    -      -       -      -
    304C  ARG*     3.8    29.8    -      -       -      +
    306C  PHE*     3.9     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 283 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  PRO*     6.2     1.6    -      -       -      -
     97C  THR      4.2     3.6    -      -       -      +
     98C  TRP*     3.6    37.5    -      -       +      -
     99C  SER*     4.0     3.8    -      -       -      +
    162C  TYR*     3.5    31.9    -      -       +      -
    163C  HIS*     2.8    27.2    -      -       -      -
    164C  VAL*     2.7    26.6    +      -       +      +
    224C  VAL*     3.8    15.7    -      -       +      -
    282C  CYS*     1.3    83.6    -      -       -      +
    284C  ASP*     1.3    67.7    +      -       -      +
    285C  ILE*     4.3     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 284 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  PRO*     5.2     6.1    -      -       -      +
     57C  MET*     5.0     3.9    -      -       -      +
    129C  VAL*     3.5    15.6    -      -       +      +
    162C  TYR      3.2     3.6    -      -       -      -
    163C  HIS*     3.0    25.9    +      -       +      +
    282C  CYS*     3.8     5.4    -      -       -      -
    283C  VAL*     1.3    83.7    -      -       -      +
    285C  ILE*     1.3    65.8    +      -       -      +
    286C  MET*     3.3     3.3    +      -       -      +
    301C  GLY*     3.0    23.0    -      -       -      -
    302C  LEU*     3.4    28.4    +      -       +      +
    304C  ARG*     2.6    45.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 285 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136B  LEU*     4.5    11.0    -      -       +      -
     57C  MET*     4.7    11.9    -      -       +      -
     96C  PRO*     4.7     9.4    -      -       +      -
    160C  SER      3.4    13.2    -      -       -      +
    161C  GLN*     3.0     8.4    -      -       -      +
    162C  TYR*     2.5    65.0    +      -       +      +
    163C  HIS*     3.2     7.8    -      -       -      -
    224C  VAL*     4.9     9.4    -      -       +      -
    283C  VAL*     4.3     6.5    -      -       +      -
    284C  ASP*     1.3    79.3    -      -       -      +
    286C  MET*     1.3    63.0    +      -       -      +
    287C  GLY      3.4     7.4    -      -       -      +
    299C  TRP*     3.3    38.8    -      -       +      +
    300C  ARG      3.9     3.8    -      -       -      -
    301C  GLY*     4.5     1.1    -      -       -      -
----------------------------------------------------------
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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