Contacts of the strand formed by residues 296 - 302 (chain A) in PDB entry 3MTC


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 296 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266A  ARG      3.0     3.9    +      -       -      +
    267A  PHE*     3.4    48.7    -      -       +      -
    268A  PHE      2.8    30.8    +      -       -      +
    294A  PRO*     3.8     3.8    -      -       -      +
    295A  ASP*     1.3    88.6    -      -       +      +
    297A  TYR*     1.3    61.9    +      -       -      +
    298A  CYS*     4.0     4.0    -      -       -      -
    351A  LEU*     3.6    23.3    -      -       +      -
    352A  TYR      3.5    12.1    -      -       -      +
    353A  VAL*     4.3    14.4    -      -       +      +
    387A  PHE*     4.8     3.1    -      -       +      -
    389A  PHE*     4.5    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  PHE*     3.6    32.3    -      +       +      -
    287A  LEU*     2.6    33.3    +      -       +      -
    288A  SER*     3.9     0.2    -      -       -      -
    294A  PRO*     3.4    20.8    -      -       +      +
    296A  VAL*     1.3    74.7    -      -       -      +
    298A  CYS*     1.3    60.3    +      -       -      +
    299A  VAL*     4.1     8.3    -      -       +      -
    330A  LEU*     3.6    31.0    -      -       +      -
    331A  HIS*     3.2    16.9    +      -       -      +
    336A  TYR*     3.5    47.6    -      +       -      -
    350A  LEU      3.6     0.9    -      -       -      +
    351A  LEU*     3.5     7.8    -      -       -      +
    352A  TYR*     3.0    47.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267A  PHE*     4.4    12.1    -      -       -      -
    268A  PHE      2.8    17.1    +      -       -      +
    269A  ALA*     3.3     8.9    -      -       +      -
    270A  GLY      2.9    25.8    +      -       -      +
    296A  VAL*     4.0    10.5    -      -       -      -
    297A  TYR*     1.3    76.5    -      -       -      +
    299A  VAL*     1.3    63.0    +      -       -      +
    349A  LEU*     4.5     3.6    -      -       +      -
    350A  LEU      3.5     5.6    -      -       -      -
    351A  LEU*     4.0    14.8    -      -       +      -
    396A  VAL*     3.9    40.2    -      -       +      -
    443A  LEU*     4.5     6.5    -      -       +      -
    445A  LEU*     4.3     2.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  PHE*     4.7     2.2    -      -       +      -
    270A  GLY      3.8     1.8    -      -       -      +
    286A  TRP*     3.4    37.9    -      -       +      -
    287A  LEU*     4.0    18.2    -      -       +      -
    297A  TYR*     4.2    17.5    -      -       +      -
    298A  CYS*     1.3    82.9    -      -       -      +
    300A  GLY*     1.3    57.5    +      -       -      +
    301A  PHE*     4.1     6.0    -      -       +      -
    326A  VAL*     3.9    32.8    -      -       +      -
    348A  MET      3.9     0.7    -      -       -      +
    349A  LEU*     3.5     4.9    -      -       -      +
    350A  LEU*     2.8    47.4    +      -       +      +
    352A  TYR*     5.0     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270A  GLY      2.9    14.7    +      -       -      +
    271A  THR*     3.3     4.4    -      -       -      -
    272A  TYR*     3.0    23.2    +      -       -      -
    286A  TRP*     4.1     3.3    -      -       -      -
    299A  VAL*     1.3    74.7    -      -       -      +
    301A  PHE*     1.3    65.3    -      -       -      -
    302A  GLN*     4.1     3.8    -      -       -      -
    348A  MET      3.3     7.9    -      -       -      -
    349A  LEU*     4.0     8.0    -      -       -      +
    398A  ASN*     3.5    10.1    -      -       -      -
    445A  LEU*     4.1     4.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272A  TYR*     3.2    10.3    -      +       +      +
    274A  VAL*     3.7    21.3    -      -       +      -
    286A  TRP*     3.8    22.9    -      +       -      -
    299A  VAL*     4.1     9.6    -      -       +      -
    300A  GLY*     1.3    76.1    -      -       -      -
    302A  GLN*     1.3    68.2    +      -       -      +
    304A  LEU*     3.4    21.8    -      -       +      -
    322A  TRP*     3.5    33.2    -      +       +      -
    326A  VAL*     3.5    33.7    -      -       +      -
    346A  GLY      3.9     1.3    -      -       -      +
    347A  ILE*     3.5     2.3    -      -       -      -
    348A  MET*     2.9    53.2    +      -       +      +
    350A  LEU*     4.2     4.9    -      -       +      -
    398A  ASN*     3.0    15.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271A  THR*     3.0    23.6    +      -       -      -
    272A  TYR      3.0     4.8    +      -       -      -
    273A  ASN*     3.2    33.9    +      -       -      +
    274A  VAL*     3.0    26.2    +      -       -      +
    300A  GLY      4.1     0.2    -      -       -      -
    301A  PHE*     1.3    84.3    -      -       -      +
    303A  GLU*     1.3    69.3    +      -       -      +
    304A  LEU      3.2     3.4    +      -       -      -
    346A  GLY      3.4     4.9    -      -       -      -
    347A  ILE*     4.6     2.2    -      -       +      +
    398A  ASN*     2.9    27.8    +      -       -      +
    400A  HIS*     3.9    37.5    -      -       +      +
    446A  GLY*     3.6     3.4    -      -       -      -
    447A  ASP*     3.5    17.8    -      -       +      +
    524A  ASP*     4.4     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page


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