Contacts of the strand formed by residues 53 - 60 (chain I) in PDB entry 5A2Q


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 53 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3082    G      2.8    46.1    +      -       -      -
    3092    G      4.1     7.9    +      -       -      +
     45I  THR*     4.6     9.6    -      -       -      -
     46I  VAL      3.6     8.1    -      -       -      +
     47I  ARG*     5.7     3.8    -      -       +      -
     48I  VAL*     5.2     0.2    -      -       -      -
     51I  GLY      5.2     2.5    -      -       -      +
     52I  ASN*     1.3    76.1    -      -       -      +
     54I  LYS*     1.3    61.1    +      -       -      +
     55I  TYR*     3.7    43.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 54 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3802    G      3.5    21.2    +      -       -      +
    3812    C      2.9    28.2    +      -       -      +
    3822    C      2.9    33.1    +      -       -      -
     45I  THR*     3.6     2.1    -      -       -      -
     46I  VAL*     2.8    48.8    +      -       +      +
     48I  VAL*     3.7    24.7    -      -       +      -
     52I  ASN      3.6     2.2    +      -       -      -
     53I  LYS*     1.3    72.9    -      -       -      +
     55I  TYR*     1.3    61.5    +      -       -      +
     56I  ARG*     3.7     6.2    +      -       +      +
    181I  GLN*     3.7    39.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 55 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3052    U      3.1    63.9    -      +       -      +
    3082    G      4.9     0.7    -      -       -      -
    3092    G      2.1    42.0    +      -       -      -
     43I  ILE*     5.0     2.7    -      -       +      -
     44I  HIS      4.4     0.4    -      -       -      -
     45I  THR*     3.4    33.4    -      -       +      -
     53I  LYS*     3.7    29.0    +      -       +      +
     54I  LYS*     1.3    71.8    -      -       -      +
     56I  ARG*     1.3    60.1    +      -       -      +
    180I  GLY      3.5     1.2    -      -       -      +
    181I  GLN      3.1    22.5    +      -       -      +
    182I  CYS      3.3    13.9    -      -       -      +
    183I  GLY*     3.2    13.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 56 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3792    C      3.7    17.8    +      -       -      -
    3802    G      2.6    44.0    +      -       -      -
   17402    C      6.1     0.9    -      -       -      -
     31I  ARG*     4.3    14.1    -      -       -      +
     32I  PRO*     4.3    10.0    +      -       -      +
     34I  ALA*     3.4    26.5    -      -       +      +
     43I  ILE*     3.2    10.6    -      -       -      +
     44I  HIS*     2.9    48.2    +      -       +      +
     46I  VAL*     4.1    25.5    -      -       +      +
     54I  LYS*     3.7     5.7    +      -       +      +
     55I  TYR*     1.3    74.3    -      -       -      +
     57I  ALA*     1.3    63.9    +      -       -      +
     58I  LEU*     3.9    11.2    +      -       +      -
    180I  GLY      3.0    18.8    +      -       -      +
    181I  GLN*     4.0     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 57 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34I  ALA*     4.8     2.9    -      -       -      +
     35I  ASN      3.8     0.3    -      -       -      +
     36I  THR*     2.6    36.0    +      -       +      +
     42I  ARG      3.8     3.1    -      -       -      -
     43I  ILE*     4.1     9.4    -      -       +      -
     56I  ARG*     1.3    76.2    -      -       -      +
     58I  LEU*     1.3    66.6    +      -       -      +
     60I  LEU*     4.2    14.8    -      -       +      -
    179I  PRO*     3.6    35.5    +      -       +      +
    180I  GLY*     4.1     0.8    +      -       -      -
    183I  GLY*     4.5     6.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 58 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   17402    C      3.6    23.8    -      -       -      +
   17412    U      3.5    22.9    -      -       -      +
     34I  ALA*     4.5    16.8    -      -       +      -
     35I  ASN*     3.8    15.1    -      -       -      +
     36I  THR*     3.7     2.1    -      -       -      -
     37I  LYS*     3.0    27.0    +      -       -      +
     42I  ARG*     3.0    16.8    +      -       +      +
     44I  HIS*     3.4    43.1    -      -       +      +
     56I  ARG*     3.9     9.4    +      -       +      +
     57I  ALA*     1.3    81.3    -      -       -      +
     59I  ARG*     1.3    65.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 59 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   17412    U      3.6    20.5    +      -       -      -
   17422    C      3.2    25.4    +      -       -      -
     36I  THR*     4.7     0.2    -      -       -      -
     37I  LYS*     3.2    22.8    -      -       +      +
     38I  ILE      6.3     0.4    -      -       -      -
     39I  GLY*     4.3     7.2    -      -       -      +
     40I  PRO*     3.2    40.4    -      -       -      +
     41I  ARG*     3.4     1.5    -      -       -      -
     42I  ARG*     2.9    66.9    +      -       +      +
     58I  LEU*     1.3    83.7    -      -       +      +
     60I  LEU*     1.3    74.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 60 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36I  THR*     4.3     4.0    -      -       +      +
     37I  LYS      2.8     6.9    +      -       -      -
     38I  ILE*     3.2    10.8    -      -       -      +
     39I  GLY      2.8    26.9    +      -       -      -
     41I  ARG*     4.6    18.4    -      -       +      +
     43I  ILE*     4.8     3.4    -      -       +      -
     57I  ALA*     4.2    13.7    -      -       +      -
     59I  ARG*     1.3    82.6    -      -       -      +
     61I  ASP*     1.3    62.4    +      -       -      +
     62I  VAL*     4.4    12.6    -      -       +      +
     78I  ILE*     5.4     1.8    -      -       +      -
     96I  LEU*     4.0    17.0    -      -       +      -
    179I  PRO*     4.2    11.2    -      -       +      -
    183I  GLY      4.5     9.9    -      -       -      +
    184I  ARG*     4.0     7.2    -      -       -      -
    185I  ALA*     3.4    41.7    -      -       +      +
----------------------------------------------------------
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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