Contacts of the strand formed by residues 1549 - 1553 (chain B) 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 PHE1549 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1290B  ARG*     3.5    57.2    -      -       +      -
   1291B  LEU      4.9     4.3    -      -       -      +
   1292B  SER      4.6     7.4    -      -       -      -
   1293B  LEU      4.5     4.3    -      -       -      -
   1294B  PRO*     3.5    35.7    -      -       +      -
   1452B  TRP*     3.2     3.5    -      -       -      -
   1453B  VAL*     2.5    46.7    +      -       +      +
   1455B  PRO*     3.7    34.3    -      -       +      -
   1547B  LYS*     5.2     5.4    -      -       +      -
   1548B  LEU*     1.3    87.9    -      -       -      +
   1550B  PRO*     1.3    71.5    -      -       +      +
   1551B  ALA      3.1     0.9    +      -       -      -
   1643B  GLU      3.3    22.4    -      -       -      -
   1644B  GLU*     5.3     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO1550 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1290B  ARG*     4.1     0.6    -      -       -      -
   1291B  LEU*     3.3    53.4    +      -       +      +
   1293B  LEU      4.6     9.4    -      -       -      +
   1295B  VAL*     5.4     0.9    -      -       +      -
   1435B  TYR*     3.8    34.3    -      -       +      +
   1451B  GLY      3.6     7.9    -      -       -      +
   1452B  TRP*     3.5    30.7    -      -       +      -
   1548B  LEU      4.4     1.3    -      -       -      +
   1549B  PHE*     1.3    82.9    -      -       +      +
   1551B  ALA*     1.3    58.0    +      -       -      +
   1552B  VAL*     4.4     1.4    +      -       -      +
   1564B  PHE*     5.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1551 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1245B  PHE*     6.2     0.2    -      -       +      -
   1289B  LEU      3.4    19.7    -      -       -      +
   1290B  ARG*     4.7     0.4    -      -       -      -
   1435B  TYR*     6.1     0.2    -      -       -      -
   1449B  TRP      4.2     0.4    -      -       -      +
   1450B  VAL*     3.7     0.7    -      -       -      +
   1451B  GLY      2.8    35.6    +      -       -      +
   1452B  TRP      5.0     0.2    -      -       -      -
   1453B  VAL*     3.6    28.0    -      -       +      +
   1493B  TYR      5.9     0.2    -      -       -      +
   1549B  PHE      3.1     1.6    +      -       -      -
   1550B  PRO*     1.3    73.0    -      -       -      +
   1552B  VAL*     1.3    67.7    +      -       -      +
   1553B  PHE*     3.7    23.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1552 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1289B  LEU*     3.4    35.2    +      -       +      +
   1435B  TYR*     4.7     8.5    -      -       +      +
   1437B  VAL*     4.4    11.2    -      -       +      -
   1448B  VAL*     5.2     2.5    -      -       +      -
   1449B  TRP      3.5     2.9    -      -       -      -
   1450B  VAL*     3.8    33.2    -      -       +      -
   1550B  PRO      5.4     0.7    -      -       -      +
   1551B  ALA*     1.3    80.6    -      -       -      +
   1553B  PHE*     1.3    77.7    +      -       -      +
   1554B  VAL*     4.9     2.7    -      -       +      +
   1562B  ILE*     4.3    24.2    -      -       +      -
   1564B  PHE*     3.9    28.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE1553 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1245B  PHE*     5.9     2.2    -      +       -      -
   1287B  LEU      5.0     3.8    -      -       -      +
   1288B  PHE*     3.4    52.3    -      +       +      -
   1289B  LEU*     4.2     4.0    -      -       -      -
   1447B  CYS      3.5     2.5    -      -       -      +
   1448B  VAL*     3.2     5.5    -      -       -      +
   1449B  TRP*     2.7    74.0    +      +       +      +
   1451B  GLY      5.6     0.2    -      -       -      -
   1453B  VAL*     5.2     7.9    -      -       +      -
   1457B  TYR*     5.3    12.3    -      +       -      -
   1464B  PHE*     5.4     4.7    -      -       +      -
   1492B  CYS*     5.9     5.8    -      -       +      -
   1493B  TYR      4.8    12.8    -      -       -      -
   1494B  MET*     4.9     4.7    -      -       +      -
   1551B  ALA*     3.7    31.6    -      -       +      -
   1552B  VAL*     1.3    77.6    -      -       -      +
   1554B  VAL*     1.3    61.5    +      -       -      +
----------------------------------------------------------
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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