Contacts of the strand formed by residues 1019 - 1027 (chain A) in PDB entry 2VKZ


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 ILE1019 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017A  ARG*     4.0     1.8    +      -       -      +
   1018A  VAL*     1.3    76.5    -      -       -      +
   1020A  VAL*     1.3    57.2    +      -       -      +
   1316A  VAL*     3.8    40.8    -      -       +      +
   1319A  ILE*     3.7    36.8    -      -       +      -
   1320A  LEU*     4.0    22.9    -      -       +      -
   1387A  ILE*     3.8    26.5    -      -       +      -
   1388A  MET      3.6     4.9    -      -       -      +
   1389A  GLN*     5.1     1.6    -      -       +      -
   1403A  ILE*     3.6     6.8    -      -       -      +
   1404A  VAL*     2.8    49.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1020 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1018A  VAL*     4.2     3.4    -      -       +      -
   1019A  ILE*     1.3    78.2    -      -       -      +
   1021A  VAL*     1.3    72.2    +      -       -      +
   1022A  THR*     3.8     7.0    +      -       -      +
   1387A  ILE*     3.3     4.6    -      -       -      -
   1388A  MET*     3.0    35.4    +      -       -      +
   1390A  ALA*     4.1    25.8    -      -       +      -
   1393A  ALA*     4.5     5.8    -      -       +      -
   1400A  ILE*     3.4    42.6    -      -       +      -
   1402A  GLY      3.4    11.7    -      -       -      +
   1403A  ILE*     4.0    15.5    -      -       +      -
   1661A  LEU*     4.6     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1021 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1020A  VAL*     1.3    71.7    -      -       -      +
   1022A  THR*     1.3    61.4    +      -       -      +
   1023A  GLY      3.6    20.4    -      -       -      +
   1385A  GLN*     4.2     8.3    -      -       +      -
   1386A  ILE      3.6     4.9    -      -       -      +
   1387A  ILE*     3.6    20.9    -      -       +      -
   1400A  ILE*     3.7     3.6    -      -       -      -
   1401A  TYR*     2.8    31.2    +      -       +      +
   1402A  GLY      3.0    13.7    +      -       -      +
   1404A  VAL*     3.6    19.3    -      -       +      +
   1593A  MET*     3.6    18.6    -      -       +      -
   1597A  LEU*     3.3    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1022 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1020A  VAL*     4.3     2.4    -      -       -      +
   1021A  VAL*     1.3    74.9    -      -       -      +
   1023A  GLY*     1.3    58.5    +      -       -      +
   1226A  SER*     2.7    42.6    -      -       -      +
   1386A  ILE*     2.8    17.7    +      -       +      -
   1388A  MET*     3.4    42.7    -      -       +      +
   1393A  ALA*     4.2     4.5    -      -       -      +
   1398A  VAL*     3.5    19.5    -      -       +      +
   1399A  PRO*     3.6    11.6    +      -       -      +
   1401A  TYR*     3.2    18.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY1023 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1021A  VAL*     3.6     4.6    -      -       -      +
   1022A  THR*     1.3    81.8    -      -       -      +
   1024A  PHE*     1.3    69.0    +      -       -      +
   1222A  ALA*     3.8    17.5    -      -       -      -
   1225A  ALA*     4.1     2.5    -      -       -      -
   1226A  SER*     3.8     4.2    -      -       -      -
   1385A  GLN*     3.3     4.5    -      -       -      +
   1386A  ILE*     2.9    26.4    +      -       -      +
   1401A  TYR*     4.0     9.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1024 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1023A  GLY*     1.3    77.3    -      -       -      +
   1025A  ALA*     1.3    65.0    +      -       -      +
   1033A  ALA*     3.9    13.7    -      -       +      +
   1221A  GLU      4.2     0.2    -      -       -      +
   1222A  ALA*     3.8     6.8    +      -       -      -
   1225A  ALA*     3.4    21.9    -      -       +      +
   1384A  ILE      3.4    11.0    -      -       -      +
   1385A  GLN*     3.8     7.4    -      -       +      -
   1401A  TYR*     3.8    36.8    -      +       -      -
   1594A  ASN*     3.2    40.6    -      -       +      +
   1597A  LEU*     3.6    24.5    -      -       +      -
   1598A  GLN*     3.7    38.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1025 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1024A  PHE*     1.3    78.1    -      -       -      +
   1026A  GLU*     1.3    65.0    +      -       -      +
   1033A  ALA*     4.2     9.9    -      -       -      -
   1218A  SER*     3.5    14.6    -      -       -      +
   1221A  GLU*     3.5    21.8    -      -       +      +
   1222A  ALA*     3.4    24.0    -      -       +      +
   1384A  ILE      3.1    28.9    +      -       -      +
   1594A  ASN*     3.5     7.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU1026 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1025A  ALA*     1.3    78.6    -      -       -      +
   1027A  VAL*     1.3    67.2    +      -       -      +
   1028A  GLY*     4.1     4.1    -      -       -      +
   1031A  GLY      3.8     0.6    -      -       -      +
   1032A  SER*     3.4    27.2    -      -       -      -
   1033A  ALA*     3.3    24.9    -      -       -      +
   1036A  ARG*     2.6    52.3    +      -       -      +
   1218A  SER*     4.2     3.8    -      -       -      -
   1221A  GLU*     4.1     4.3    -      -       -      +
   1382A  ALA      3.4    13.5    -      -       -      +
   1383A  GLY*     4.1     0.7    -      -       -      -
   1581A  THR*     5.4     0.2    -      -       -      +
   1591A  TRP*     3.7    31.7    +      -       +      +
   1594A  ASN*     3.2    19.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1027 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026A  GLU*     1.3    77.4    -      -       -      +
   1028A  GLY*     1.3    60.0    +      -       -      +
   1031A  GLY      3.8     3.6    -      -       -      +
   1189A  ILE*     3.8    15.3    -      -       +      -
   1193A  TRP*     3.6    34.3    -      -       +      +
   1198A  TYR*     6.1     0.4    -      -       +      -
   1214A  PHE*     3.6    39.3    -      -       +      +
   1217A  VAL*     4.1    23.8    -      -       +      -
   1218A  SER*     3.7     7.4    +      -       -      +
   1221A  GLU*     6.0     0.7    -      -       -      +
   1381A  GLY*     3.1     5.5    -      -       -      -
   1382A  ALA      2.9    30.9    +      -       -      +
   1591A  TRP*     3.5     2.9    -      -       -      -
----------------------------------------------------------
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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