Contacts of the strand formed by residues 43 - 50 (chain A) in PDB entry 3M2K


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 LYS 43 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  GLU*     3.2    10.3    -      -       -      +
     42A  ALA*     1.3    78.8    -      -       -      +
     44A  LEU*     1.3    64.9    +      -       -      +
     61A  ARG*     3.7    21.8    -      -       -      +
     64A  GLU*     2.5    31.0    +      -       -      +
     65A  ARG      4.8     4.2    +      -       -      -
     66A  PHE*     3.7    22.7    -      -       +      -
    265A  SER*     2.9    31.0    -      -       -      -
    266A  SER*     2.9    19.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     3.6    43.7    -      -       +      +
     36A  LEU*     4.5     4.5    -      -       +      -
     37A  GLU*     3.1    14.6    +      -       +      +
     42A  ALA      4.0     0.2    +      -       -      -
     43A  LYS*     1.3    76.8    -      -       -      +
     45A  GLY*     1.4    56.6    +      -       -      +
     46A  ILE*     3.6    17.0    -      -       +      -
     60A  TYR*     3.4    25.3    -      -       +      -
     61A  ARG*     3.5    12.3    -      -       -      -
     66A  PHE*     3.7     4.3    -      -       -      -
    263A  VAL*     4.9     4.3    -      -       +      -
    264A  LEU      3.1     9.6    -      -       -      +
    265A  SER*     4.2     1.6    -      -       -      -
    278A  LEU*     4.0    41.5    -      -       +      -
    282A  ALA*     4.4    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  LEU*     1.4    68.1    -      -       -      +
     46A  ILE*     1.4    63.3    +      -       -      +
     60A  TYR      3.8     2.9    -      -       -      -
     61A  ARG      4.0     6.5    -      -       -      -
     66A  PHE*     3.1    28.9    -      -       -      -
    183A  ALA*     4.0     9.9    -      -       -      +
    262A  ALA      3.6     1.4    -      -       -      +
    263A  VAL*     3.4     2.1    -      -       -      -
    264A  LEU*     2.5    42.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     3.4    38.4    -      -       +      -
     44A  LEU*     3.6    22.9    -      -       +      -
     45A  GLY*     1.4    76.1    -      -       -      +
     47A  PHE*     1.3    67.0    +      -       -      +
     57A  VAL*     4.5     9.4    -      -       +      +
     59A  ALA*     3.2     2.1    -      -       -      -
     60A  TYR*     2.4    55.3    +      -       +      +
     61A  ARG      4.2     0.6    +      -       -      -
     62A  PRO*     3.9     3.2    -      -       -      +
    183A  ALA*     3.9     4.7    -      -       -      +
    261A  LEU*     4.6     1.3    -      -       +      -
    262A  ALA      3.5    11.0    -      -       -      +
    263A  VAL*     4.2    13.0    -      -       +      -
    282A  ALA*     4.6     7.4    -      -       +      -
    286A  VAL*     3.7    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  ILE*     1.3    72.4    -      -       -      +
     48A  ALA*     1.3    65.6    +      -       -      +
     49A  LEU*     3.6    31.9    -      -       +      -
     56A  THR*     3.7    22.7    -      -       +      -
     57A  VAL      3.2    11.0    -      -       -      -
     59A  ALA*     4.5     5.4    -      -       +      -
     62A  PRO*     4.0    20.4    -      -       +      -
    183A  ALA*     3.8     3.3    -      -       +      +
    184A  ARG*     3.8    56.8    -      -       -      +
    187A  VAL*     3.4    25.0    -      -       +      +
    188A  THR*     5.2     5.2    -      -       -      -
    261A  LEU*     3.3     3.2    -      -       -      +
    262A  ALA      2.9    31.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  PHE*     1.3    82.0    -      -       -      +
     49A  LEU*     1.3    64.6    +      -       -      +
     56A  THR*     3.4     3.8    -      -       -      -
     57A  VAL*     3.0    34.9    +      -       +      +
    259A  VAL*     4.4     9.9    -      -       +      -
    260A  VAL      3.4     7.4    -      -       -      +
    261A  LEU*     3.9     4.7    -      -       +      -
    286A  VAL*     3.5    33.4    -      -       +      -
    290A  LEU*     4.6     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  PHE*     3.6    22.0    -      -       +      -
     48A  ALA*     1.3    78.3    -      -       -      +
     50A  ASP*     1.3    76.1    +      -       -      +
     51A  THR*     3.7     4.5    +      -       +      +
     54A  ASN*     3.8    21.8    -      -       -      +
     55A  ARG      3.3    12.6    -      -       -      +
     56A  THR*     4.4     4.9    -      -       -      +
    187A  VAL*     4.4    10.3    -      -       +      -
    188A  THR*     5.7     3.6    -      -       -      +
    191A  ARG*     3.9    28.0    -      -       -      +
    259A  VAL*     2.9    18.2    -      -       -      +
    260A  VAL*     2.8    25.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     1.3    71.5    -      -       -      +
     51A  THR*     1.3    57.2    +      -       -      +
     52A  GLY*     3.3    11.1    +      -       -      -
     53A  THR*     3.5    16.9    +      -       -      +
     54A  ASN*     2.5    37.4    +      -       -      -
     55A  ARG*     2.8    44.9    +      -       -      +
    257A  ASP      4.1     6.4    -      -       -      +
    258A  PRO      3.9     2.6    -      -       -      +
    259A  VAL*     3.5    26.2    -      -       +      +
    290A  LEU*     4.3    10.7    -      -       +      +
----------------------------------------------------------
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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