Contacts of the strand formed by residues 38 - 43 (chain M) in PDB entry 3MQT


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 TYR 38 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30M  LYS*     3.6    24.9    -      -       +      -
     31M  VAL      3.1    12.1    -      -       -      +
     32M  THR*     3.6    15.9    -      -       +      +
     36M  GLY      4.0    12.1    -      -       -      -
     37M  VAL*     1.3    75.5    -      -       -      +
     39M  GLY*     1.3    58.4    +      -       -      +
     40M  LEU*     3.9    34.6    -      -       +      +
    112M  LEU*     4.0     6.1    -      -       -      -
    115M  LYS*     2.7    54.1    +      -       -      +
    373M  LEU*     5.4     1.7    -      -       -      +
    375M  ILE*     4.0    14.7    -      -       -      +
    386M  PHE*     3.9    21.3    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 39 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30M  LYS*     3.5     6.2    -      -       -      +
     31M  VAL      3.0    31.0    +      -       -      -
     38M  TYR*     1.3    75.5    -      -       -      +
     40M  LEU*     1.3    63.9    +      -       -      +
    108M  ALA*     3.6    22.7    -      -       -      +
    111M  ASP*     3.3     9.0    -      -       -      -
    112M  LEU*     3.7    12.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 40 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28M  ILE*     4.0    24.0    -      -       +      -
     29M  VAL      3.5     0.9    -      -       -      -
     30M  LYS*     4.3     7.6    -      -       +      -
     38M  TYR*     3.9    28.9    -      -       +      -
     39M  GLY*     1.3    81.2    -      -       -      +
     41M  GLY*     1.3    59.7    +      -       -      +
    108M  ALA*     3.5    11.8    -      -       -      -
    111M  ASP*     2.9    23.1    +      -       -      +
    115M  LYS*     5.5     2.0    -      -       -      +
    315M  ILE*     4.3     7.2    -      -       +      -
    369M  LEU*     3.8    12.5    -      -       -      +
    371M  ILE*     3.9    28.4    -      -       +      +
    373M  LEU*     4.0    31.0    -      -       +      -
    386M  PHE*     4.2    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 41 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28M  ILE*     3.6     6.9    -      -       -      +
     29M  VAL*     2.7    38.5    +      -       -      +
     40M  LEU*     1.3    75.8    -      -       -      +
     42M  GLU*     1.3    58.8    +      -       -      +
    104M  GLY      3.7    15.0    -      -       -      -
    107M  MET*     3.9     8.7    -      -       -      -
    108M  ALA*     3.5     3.9    -      -       -      +
    315M  ILE*     3.6    11.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 42 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26M  THR*     2.7    28.0    +      -       -      +
     27M  VAL      3.1    15.0    -      -       -      +
     29M  VAL      4.3     0.9    -      -       -      +
     41M  GLY*     1.3    74.4    -      -       -      +
     43M  ALA*     1.3    59.7    +      -       -      +
    104M  GLY*     3.3    14.9    +      -       -      -
    107M  MET*     3.6     9.9    -      -       -      +
    284M  ASN*     3.3    21.3    -      -       -      +
    312M  LYS*     3.2     6.9    -      -       +      +
    313M  THR*     2.9    43.3    +      -       -      +
    315M  ILE*     3.7    14.8    -      -       +      +
    316M  THR*     2.6    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 43 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12M  PHE*     4.4    11.4    -      -       +      -
     26M  THR*     4.4     0.7    +      -       -      -
     27M  VAL*     3.1    33.9    +      -       +      +
     29M  VAL*     4.1    16.5    -      -       +      +
     42M  GLU*     1.3    74.6    -      -       -      +
     44M  ASP*     1.3    69.3    +      -       -      +
     50M  MET*     4.8     2.7    -      -       +      -
    100M  PHE      3.3    25.4    -      -       -      +
    101M  ALA*     4.4     0.7    -      -       -      -
    104M  GLY*     4.2     2.0    -      -       -      -
    284M  ASN*     4.1     3.4    -      -       -      -
    312M  LYS*     4.1     6.9    +      -       -      -
----------------------------------------------------------
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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