Contacts of the strand formed by residues 30 - 35 (chain A) in PDB entry 1DSU


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 MET 30 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ARG*     3.2    22.7    +      -       +      +
     28A  PRO      3.3     2.8    -      -       -      +
     29A  TYR*     1.3    84.0    -      -       +      +
     31A  ALA*     1.3    74.5    +      -       -      +
     43A  GLY*     4.4     4.9    -      -       -      -
     44A  GLY      3.9     2.2    -      -       -      +
     67A  LEU      4.4     2.4    -      -       -      +
     68A  LEU*     4.3    10.4    -      -       -      +
     69A  GLY      4.6     4.3    +      -       -      -
     70A  ALA      5.3     4.6    +      -       -      +
    139A  ALA*     3.6    32.5    -      -       +      +
    140A  GLY*     3.9    14.1    -      -       -      -
    141A  TRP*     3.9    19.6    -      -       +      -
    155A  LEU*     3.9    25.4    -      -       +      -
    197A  GLY*     4.4     5.6    -      -       -      -
    198A  PRO*     3.6    31.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  TYR      4.3     2.0    -      -       -      +
     30A  MET*     1.3    77.0    -      -       -      +
     32A  SER*     1.3    60.7    +      -       -      +
     43A  GLY*     3.4     4.9    -      -       -      -
     44A  GLY*     2.8    46.7    +      -       -      +
     45A  VAL*     4.4     0.4    -      -       -      +
     46A  LEU      4.7     0.2    -      -       -      +
     52A  VAL*     4.2     8.1    -      -       +      -
     66A  VAL*     3.9    13.9    -      -       +      -
     67A  LEU      3.6     4.3    -      -       -      -
     68A  LEU*     3.5    22.9    -      -       +      -
    141A  TRP*     3.7    10.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA*     1.3    74.1    -      -       -      +
     33A  VAL*     1.3    61.1    +      -       -      +
     34A  GLN*     3.2    26.1    +      -       -      +
     40A  HIS*     2.7    27.1    +      -       -      +
     42A  CYS      3.7     4.3    -      -       -      -
     66A  VAL*     3.4     2.1    -      -       -      -
     67A  LEU*     2.8    45.9    +      -       -      -
     73A  LEU*     4.0     6.1    -      -       -      +
    141A  TRP*     3.8    18.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA      5.3     0.2    -      -       -      -
     32A  SER*     1.3    71.9    +      -       -      +
     34A  GLN*     1.3    62.5    +      -       -      +
     40A  HIS      4.0     0.2    -      -       -      -
     41A  LEU*     2.9    32.5    +      -       +      +
     42A  CYS*     2.8    22.4    +      -       +      +
     43A  GLY      3.5    23.3    -      -       -      +
     44A  GLY*     4.4     5.2    -      -       -      -
     52A  VAL*     4.8     2.0    -      -       +      -
     54A  SER*     3.7    12.6    -      -       -      +
     58A  CYS*     5.9     1.1    -      -       +      -
     59A  LEU*     4.5    11.9    -      -       +      -
     64A  VAL*     4.1    23.1    -      -       +      -
     65A  GLN      3.5     5.6    -      -       -      +
     66A  VAL*     4.5     8.3    -      -       +      +
    106A  LEU*     4.1    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  SER*     3.2    27.7    +      -       -      +
     33A  VAL*     1.3    79.1    -      -       -      +
     35A  LEU*     1.3    61.1    +      -       -      +
     36A  ASN      4.1     0.4    -      -       -      -
     38A  GLY*     3.7    25.9    +      -       -      +
     39A  ALA      3.2    15.9    -      -       -      +
     40A  HIS      3.9     6.6    +      -       -      -
     41A  LEU*     4.6     2.0    -      -       -      -
     63A  LYS      3.6     0.2    -      -       -      +
     64A  VAL*     3.2     9.9    -      -       -      +
     65A  GLN*     2.7    44.9    +      -       +      +
     67A  LEU*     3.9    17.0    -      -       +      +
     73A  LEU*     3.8    16.5    -      -       -      +
     82A  LEU*     3.9    21.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLN*     1.3    72.2    -      -       -      +
     36A  ASN*     1.3    78.1    +      -       -      +
     38A  GLY      3.1     0.2    -      -       -      -
     39A  ALA*     2.9    25.7    +      -       +      +
     41A  LEU*     4.3    23.1    -      -       +      +
     61A  ALA*     3.0    71.8    -      -       +      +
     62A  GLY*     4.1    30.3    -      -       -      +
     63A  LYS      3.5     2.2    -      -       -      +
     64A  VAL*     4.2     4.5    -      -       +      -
----------------------------------------------------------
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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