Contacts of the strand formed by residues 34 - 38 (chain V) in PDB entry 3SDI


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 LEU 34 (chain V).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14V  ILE*     3.9    21.8    -      -       +      +
     15V  ALA      4.0     8.5    -      -       -      +
     16V  ALA*     3.7    24.0    -      -       +      -
     32V  ALA*     3.6     5.0    -      -       -      +
     33V  LYS*     1.3    76.4    +      -       -      +
     35V  HIS*     1.3    64.3    +      -       -      +
     42V  TRP*     4.3    11.4    -      -       +      -
     43V  CYS      3.9     2.5    -      -       -      -
     44V  ALA*     3.8    15.9    -      -       +      -
    174V  ASP*     3.7    27.0    +      -       +      +
    175V  VAL*     3.7    32.1    -      -       -      +
    176V  CYS*     3.9     6.5    -      -       +      +
    186V  TYR*     4.0    25.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 35 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32V  ALA*     3.9    16.5    +      -       -      +
     33V  LYS*     3.4    21.8    +      -       -      -
     34V  LEU*     1.3    78.0    +      -       -      +
     36V  ARG*     1.3    60.5    +      -       -      +
     42V  TRP*     3.2    11.5    -      -       -      -
     43V  CYS*     2.8    43.3    +      -       -      +
     45V  GLY*     5.0     6.5    +      -       -      -
     52V  THR*     4.3    19.8    +      -       -      -
     53V  GLU*     2.9    30.9    +      -       +      +
     56V  THR*     3.5    37.2    -      -       +      +
     99V  LEU*     5.7     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 36 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101O  LYS*     5.3     8.7    -      -       -      +
    217O  TYR*     3.2    76.2    -      -       -      +
     35V  HIS*     1.3    74.5    -      -       -      +
     37V  ILE*     1.3    61.9    +      -       -      +
     38V  SER*     3.3    24.5    -      -       -      +
     39V  PRO*     4.3     2.5    -      -       -      +
     41V  ILE      4.0     1.8    -      -       -      -
     42V  TRP*     3.6    29.4    -      -       +      +
     56V  THR*     3.9    13.0    -      -       -      +
     60V  GLY*     5.3     0.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 37 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35V  HIS      3.8     1.0    +      -       -      -
     36V  ARG*     1.3    74.9    -      -       -      +
     38V  SER*     1.3    61.9    +      -       -      +
     41V  ILE*     2.7    26.6    +      -       +      +
     43V  CYS*     3.6    38.6    -      -       +      -
     56V  THR*     4.4    15.9    -      -       +      +
     59V  ILE*     4.5     6.5    -      -       +      -
     60V  GLY*     3.3    37.3    -      -       -      +
     63V  ILE*     4.5     8.9    -      -       +      +
     79V  ALA*     4.2    17.7    -      -       +      -
     83V  LEU*     4.2    17.7    -      -       +      -
    101V  VAL*     4.0    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 38 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36V  ARG*     3.3    14.9    -      -       -      +
     37V  ILE*     1.3    76.3    -      -       -      +
     39V  PRO*     1.3    80.7    -      -       -      +
     40V  LYS      2.8     5.9    +      -       -      -
     41V  ILE*     3.0    39.2    +      -       -      +
     63V  ILE*     4.0    12.3    -      -       -      -
     74V  PRO*     3.5    22.8    -      -       -      +
----------------------------------------------------------
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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