Contacts of the strand formed by residues 7 - 17 (chain K) 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 ILE 7 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6K  ASN*     1.3    73.3    -      -       -      +
      8K  VAL*     1.3    63.2    -      -       -      +
      9K  SER      3.8    11.7    -      -       -      +
     10K  VAL*     4.5     2.7    -      -       +      -
     31K  VAL*     3.5    25.8    -      -       +      -
     32K  THR      3.7     4.0    -      -       -      +
     33K  ASP*     4.1     1.3    -      -       -      +
     70K  VAL*     3.6    33.2    -      -       +      +
     71K  ILE*     3.6    11.8    -      -       +      +
     72K  GLY*     2.7    29.1    +      -       -      -
     73K  ARG*     3.0    19.3    +      -       +      +
     74K  ASP      4.8     0.2    -      -       -      -
     75K  PRO*     4.1    13.9    -      -       +      -
     81K  ASN*     5.1     0.9    -      -       -      +
    109K  LEU*     3.4    32.3    -      -       +      -
    112K  LEU*     4.1    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 8 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7K  ILE*     1.3    73.9    -      -       -      +
      9K  SER*     1.3    67.6    +      -       -      +
     32K  THR*     2.8    16.8    +      -       +      +
     33K  ASP      4.2     4.0    -      -       -      +
     34K  GLU*     3.6    44.2    -      -       +      +
     71K  ILE*     3.2    22.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 9 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8K  VAL*     1.3    88.0    -      -       -      +
     10K  VAL*     1.3    65.9    +      -       -      +
     11K  GLU*     5.7     2.8    +      -       -      +
     30K  LYS      4.4     1.1    +      -       -      -
     31K  VAL*     3.5     9.2    -      -       -      +
     32K  THR*     3.0    46.6    +      -       -      +
     71K  ILE*     3.5     6.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 10 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7K  ILE*     4.5     0.4    -      -       +      -
      9K  SER*     1.3    82.2    -      -       -      +
     11K  GLU*     1.3    65.6    +      -       -      +
     12K  PHE*     3.8    27.4    -      -       +      -
     29K  VAL*     4.4     6.1    -      -       +      -
     30K  LYS      3.5     4.7    -      -       -      +
     31K  VAL*     4.1    13.9    -      -       +      -
     67K  LYS*     3.0    47.7    +      -       +      +
     70K  VAL*     3.7    30.5    -      -       +      -
     71K  ILE*     3.9     9.3    -      -       +      +
    105K  ILE*     4.2    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 11 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9K  SER*     5.7     2.8    +      -       -      +
     10K  VAL*     1.3    76.5    -      -       -      +
     12K  PHE*     1.3    68.1    +      -       -      +
     13K  ILE*     3.8    28.2    +      -       +      +
     28K  ILE      3.3     4.9    -      -       -      +
     29K  VAL*     3.4     2.6    -      -       -      -
     30K  LYS*     2.9    50.7    +      -       +      +
     67K  LYS*     4.6     3.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 12 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10K  VAL*     3.8    22.4    +      -       +      -
     11K  GLU*     1.3    80.4    -      -       -      +
     13K  ILE*     1.3    61.7    +      -       -      +
     14K  PRO*     3.3    11.4    -      -       -      +
     27K  VAL*     3.9    20.6    -      -       +      -
     28K  ILE      3.5     3.6    -      -       -      -
     29K  VAL*     3.9    16.4    -      -       +      -
     43K  ALA*     4.3     6.1    -      -       +      -
     50K  MET*     3.7    22.2    -      -       +      -
     51K  LYS*     3.6    19.8    -      -       +      +
     54K  SER*     3.5    34.8    +      -       -      +
     55K  GLU*     5.0     3.0    +      -       -      +
     66K  ILE*     5.0     2.2    -      -       +      -
     67K  LYS*     4.6     3.0    -      -       -      +
    101K  ALA*     3.7    42.4    -      -       +      -
    105K  ILE*     3.8    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 13 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11K  GLU*     4.1    31.4    -      -       +      +
     12K  PHE*     1.3    75.3    -      -       -      +
     14K  PRO*     1.3    66.3    -      -       +      +
     15K  VAL*     3.4     9.0    -      -       +      +
     27K  VAL*     4.0     2.8    -      -       -      +
     28K  ILE*     2.8    46.9    +      -       +      +
     30K  LYS*     4.3    16.4    -      -       +      -
    378K  VAL*     5.0     2.9    -      -       +      -
    382K  THR*     3.8    29.8    -      -       +      -
    386K  PHE*     4.0    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 14 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12K  PHE      3.3    10.5    -      -       -      +
     13K  ILE*     1.3    86.8    -      -       +      +
     15K  VAL*     1.3    62.0    +      -       -      +
     16K  ASN*     4.1     3.7    +      -       -      +
     26K  THR      3.9     5.8    -      -       -      +
     27K  VAL*     4.6     2.9    -      -       +      -
     47K  PRO*     3.6    30.5    -      -       +      +
     48K  GLU*     3.6    25.1    -      -       -      +
     51K  LYS*     3.6    27.1    -      -       +      -
    382K  THR*     3.8    16.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 15 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13K  ILE*     3.4    15.5    -      -       +      +
     14K  PRO*     1.3    80.7    -      -       -      +
     16K  ASN*     1.3    62.2    +      -       -      +
     17K  VAL*     5.1     0.7    -      -       +      -
     24K  GLU      3.9     0.2    -      -       -      +
     25K  ASN*     3.2    24.8    -      -       -      +
     26K  THR*     3.1    24.2    +      -       +      +
     28K  ILE*     3.7    28.9    -      -       +      -
     47K  PRO*     4.4     0.6    -      -       -      +
    345K  LEU*     4.2    25.6    -      -       +      -
    349K  LEU*     5.0     6.3    -      -       +      -
    378K  VAL*     5.1     0.9    -      -       +      -
    381K  VAL*     4.1    23.8    -      -       +      -
    382K  THR*     4.6     7.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 16 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14K  PRO*     4.1     1.6    -      -       -      +
     15K  VAL*     1.3    74.3    -      -       -      +
     17K  VAL*     1.3    70.2    +      -       -      +
     18K  ALA*     4.0     3.0    +      -       +      +
     23K  SER*     5.5     4.7    -      -       -      -
     24K  GLU      3.9     1.7    -      -       -      +
     25K  ASN*     3.9    16.5    +      -       -      +
     47K  PRO*     3.8    33.3    -      -       -      +
     48K  GLU*     5.0    12.1    +      -       -      +
    381K  VAL*     4.6    17.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 17 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15K  VAL*     5.1     1.6    -      -       +      -
     16K  ASN*     1.3    80.9    +      -       -      +
     18K  ALA*     1.3    68.8    -      -       -      +
     23K  SER*     4.3     8.3    +      -       -      -
     24K  GLU*     3.1    36.9    +      -       +      +
    344K  THR*     4.1    24.9    -      -       +      +
    345K  LEU*     3.9    29.6    -      -       +      -
    377K  PHE*     4.3    13.5    -      -       +      -
    381K  VAL*     4.7     7.9    -      -       +      -
----------------------------------------------------------
 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