Contacts of the strand formed by residues 1527 - 1531 (chain D) in PDB entry 6X34


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 MET1527 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1295D  VAL*     5.7     3.4    -      -       +      -
   1452D  TRP*     3.5    47.6    -      -       +      -
   1493D  TYR*     5.1    15.3    -      -       +      -
   1519D  LEU      3.7     4.9    -      -       -      -
   1520D  VAL*     3.8    38.1    -      -       +      +
   1525D  GLY      4.1     1.0    +      -       -      +
   1526D  LEU*     1.3    70.0    -      -       -      +
   1528D  THR*     1.3    59.9    +      -       -      +
   1529D  PHE*     4.1    10.2    +      -       +      -
   1538D  THR      4.2     0.2    -      -       -      +
   1539D  PHE*     3.3    23.6    -      -       -      +
   1540D  PHE*     3.6    14.8    +      -       +      +
   1542D  VAL*     4.1    24.3    -      -       +      +
   1546D  THR*     5.5     9.0    -      -       +      -
   1548D  LEU*     4.5    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1528 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1519D  LEU*     2.8    47.5    +      -       -      +
   1526D  LEU*     3.3    20.9    -      -       +      +
   1527D  MET*     1.3    74.8    -      -       -      +
   1529D  PHE*     1.3    67.5    +      -       -      +
   1530D  THR*     5.1     0.3    -      -       -      -
   1538D  THR      4.0     5.8    -      -       -      -
   1539D  PHE*     4.1    15.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1529 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1450D  VAL*     3.8    15.3    -      -       +      -
   1451D  GLY*     3.7    23.6    -      -       -      -
   1452D  TRP*     4.0    27.1    -      +       -      -
   1493D  TYR*     4.8     7.4    -      -       +      -
   1494D  MET*     4.1    13.2    -      -       -      -
   1495D  VAL*     3.7    23.8    -      -       +      -
   1516D  ILE*     6.5     0.4    -      -       +      -
   1517D  GLY      3.7     4.7    -      -       -      +
   1518D  CYS*     3.8    20.0    -      -       +      -
   1520D  VAL*     5.7     0.9    -      -       +      -
   1527D  MET*     4.1    11.3    +      -       +      -
   1528D  THR*     1.3    80.6    +      -       -      +
   1530D  THR*     1.3    61.0    +      -       -      +
   1535D  GLU*     4.7     2.4    -      -       -      +
   1536D  SER*     3.4    29.5    +      -       -      -
   1537D  ASN      4.7     1.4    +      -       -      -
   1538D  THR*     3.6    19.8    +      -       +      +
   1540D  PHE*     5.7     8.5    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1530 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1434D  TYR*     6.2     0.7    -      -       -      -
   1516D  ILE*     3.3     8.0    -      -       -      +
   1517D  GLY*     2.5    52.9    +      -       -      +
   1518D  CYS*     4.2     2.7    -      -       -      -
   1519D  LEU*     6.2     1.3    -      -       -      -
   1528D  THR      5.1     0.9    -      -       -      -
   1529D  PHE*     1.3    76.0    -      -       -      +
   1531D  ALA*     1.3    61.2    +      -       -      +
   1534D  LYS      3.7    11.9    -      -       -      -
   1535D  GLU*     4.5     1.6    -      -       -      +
   1536D  SER*     3.9     7.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA1531 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1500D  PHE*     4.0    23.3    -      -       +      +
   1515D  VAL      3.9     4.0    -      -       -      -
   1516D  ILE*     4.2     9.6    -      -       +      -
   1517D  GLY*     4.1     4.7    +      -       -      -
   1530D  THR*     1.3    79.4    -      -       -      +
   1532D  ASN*     1.3    62.1    +      -       -      +
   1533D  GLY      3.0     8.9    +      -       -      -
   1534D  LYS*     2.9    29.7    +      -       +      +
   1535D  GLU      4.5     8.3    -      -       -      +
   1536D  SER*     3.9     8.0    -      -       -      +
----------------------------------------------------------
 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