Contacts of the strand formed by residues 1318 - 1322 (chain B) in PDB entry 1Y8Z


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 ILE1318 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1288B  GLY      3.5     1.8    +      -       -      -
   1289B  PHE*     3.6    20.8    -      -       +      -
   1290B  GLY      3.1    21.7    +      -       -      +
   1317B  THR*     1.3    79.0    +      -       -      +
   1319B  PRO*     1.3    74.6    -      -       +      +
   1320B  VAL*     3.5     1.8    +      -       +      +
   1344B  GLY      4.4     4.5    -      -       -      +
   1346B  ILE*     3.7    32.8    -      -       +      -
   1363B  LEU*     4.0     6.5    -      -       +      -
   1370B  TYR*     3.3    41.3    +      -       +      +
   1373B  GLU*     3.8    13.0    -      -       +      -
   1374B  ARG*     3.6    33.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO1319 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1290B  GLY      3.8     4.0    -      -       -      +
   1312B  LEU*     4.1     7.6    -      -       +      -
   1313B  GLY*     3.9    26.0    -      -       -      +
   1317B  THR      3.2    11.4    -      -       -      +
   1318B  ILE*     1.3    88.6    -      -       +      +
   1320B  VAL*     1.3    60.0    +      -       -      +
   1321B  PHE*     3.5    30.3    -      -       +      -
   1344B  GLY      4.6     4.3    -      -       -      +
   1345B  ILE*     3.8     6.7    -      -       +      +
   1346B  ILE*     3.0    26.5    +      -       -      +
   1377B  ALA*     3.8    24.7    -      -       +      -
   1381B  LEU*     4.5     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1320 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1289B  PHE*     4.3     8.7    -      -       +      -
   1290B  GLY      2.9    17.5    +      -       -      +
   1291B  TYR*     3.6    39.2    -      -       +      -
   1292B  GLN      3.0    26.2    +      -       -      +
   1293B  LEU*     3.8     1.8    -      -       +      +
   1318B  ILE      4.0     6.3    -      -       -      +
   1319B  PRO*     1.3    75.0    -      -       -      +
   1321B  PHE*     1.3    62.0    +      -       -      +
   1346B  ILE*     3.2    32.8    -      -       +      +
   1348B  PHE*     3.8    24.9    -      -       +      -
   1356B  THR*     4.6     2.9    -      -       +      -
   1360B  ILE*     4.6     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE1321 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1292B  GLN*     3.3    10.5    -      -       +      +
   1293B  LEU*     4.2     0.9    -      -       -      -
   1305B  LEU*     4.6     7.6    -      -       +      -
   1309B  HIS*     3.4    57.4    -      +       +      -
   1312B  LEU*     3.6    18.2    -      -       +      -
   1319B  PRO*     3.5    23.7    -      -       +      -
   1320B  VAL*     1.3    82.3    -      -       -      +
   1322B  TRP*     1.3    59.6    +      -       -      +
   1325B  THR*     6.0     0.7    -      -       +      -
   1345B  ILE*     3.8    33.4    -      -       +      -
   1346B  ILE      2.9     6.5    +      -       -      -
   1347B  TRP*     3.5    28.3    -      +       +      -
   1348B  PHE*     2.6    37.5    +      -       -      +
   1381B  LEU*     4.4    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP1322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1213B  GLN*     3.4    40.2    -      -       +      -
   1292B  GLN      3.6     5.5    +      -       -      -
   1293B  LEU*     3.8    26.2    -      -       +      +
   1294B  SER      3.2    22.6    +      -       -      +
   1295B  LYS*     3.6    26.0    -      -       +      +
   1309B  HIS*     5.5     0.4    -      -       -      -
   1321B  PHE*     1.3    72.4    -      -       -      +
   1323B  LYS*     1.3    67.8    +      -       +      +
   1324B  SER*     2.9    34.0    +      -       -      +
   1325B  THR*     3.0    23.8    +      -       -      +
   1326B  GLY      3.2     9.0    +      -       -      -
   1347B  TRP*     3.6     4.4    -      -       -      -
   1348B  PHE*     3.8    27.6    -      +       -      -
   1350B  GLU*     3.5    44.6    +      -       +      -
----------------------------------------------------------
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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