Contacts of the strand formed by residues 1371 - 1379 (chain A) in PDB entry 6XAF


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 ILE1371 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1369A  VAL*     3.1    14.4    -      -       -      +
   1370A  GLY*     1.3    82.4    -      -       -      +
   1372A  ASP*     1.3    62.1    +      -       -      +
   1373A  VAL*     4.0    10.5    +      -       +      -
   1393A  TRP*     3.9    27.8    -      -       +      -
   1394A  ASP      3.5     7.2    -      -       -      +
   1395A  PHE*     4.0     9.9    -      -       +      -
   1400A  GLU*     3.8    22.0    -      -       +      +
   1403A  SER*     3.9     6.5    -      -       -      +
   1404A  THR*     3.8    27.8    -      -       +      -
   1373B  VAL*     3.8    36.1    +      -       +      +
   1391B  ASN*     5.2     2.0    -      -       -      +
   1393B  TRP*     3.9    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1372 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1369A  VAL*     4.1    16.5    -      -       +      +
   1371A  ILE*     1.3    73.4    -      -       -      +
   1373A  VAL*     1.3    67.6    +      -       -      +
   1374A  LYS*     3.7    28.4    +      -       -      +
   1392A  VAL      3.4     2.8    -      -       -      +
   1393A  TRP*     3.6     0.7    -      -       -      -
   1394A  ASP*     2.8    56.9    +      -       +      +
   1348B  THR*     5.7     3.6    -      -       -      +
   1351B  LEU*     5.8     1.2    -      -       -      +
   1369B  VAL*     5.9     1.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1371A  ILE*     4.0     9.4    +      -       +      -
   1372A  ASP*     1.3    81.0    +      -       -      +
   1374A  LYS*     1.3    66.1    +      -       -      +
   1391A  ASN*     3.9    16.8    -      -       -      +
   1392A  VAL      3.2     8.5    -      -       -      +
   1393A  TRP*     3.8    52.5    -      -       +      +
   1369B  VAL*     3.4    24.3    -      -       -      +
   1371B  ILE*     3.8    36.1    +      -       +      +
   1373B  VAL*     4.8     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1372A  ASP*     3.7    27.2    +      -       -      +
   1373A  VAL*     1.3    77.9    -      -       -      +
   1375A  ASP*     1.3    64.9    +      -       -      +
   1391A  ASN*     4.3     2.0    -      -       -      +
   1392A  VAL*     2.7    43.4    +      -       +      +
   1351B  LEU*     4.6    10.6    -      -       +      +
   1352B  GLN*     5.8     5.9    -      -       -      +
   1355B  MET*     3.7    36.0    -      -       +      +
   1369B  VAL*     5.2     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1374A  LYS*     1.3    77.9    -      -       -      +
   1376A  TRP*     1.3    61.1    +      -       -      +
   1377A  PRO*     3.7     9.7    -      -       +      +
   1389A  VAL*     3.9    20.9    -      -       +      +
   1390A  LEU      3.4     2.8    -      -       -      +
   1391A  ASN*     2.7    37.1    +      -       -      +
   1355B  MET*     3.8    11.8    -      -       -      +
   1365B  GLN*     5.6    14.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP1376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1375A  ASP*     1.3    74.8    -      -       -      +
   1377A  PRO*     1.3    71.6    +      -       +      +
   1378A  ILE*     3.5    33.5    +      -       +      +
   1388A  LEU      3.5     2.1    -      -       -      +
   1389A  VAL*     3.5     2.0    -      -       -      -
   1390A  LEU*     2.8    45.5    +      -       +      +
   1392A  VAL*     3.8    14.4    -      -       +      -
   1337B  LEU*     3.9    30.3    -      -       +      -
   1351B  LEU*     4.4     3.6    -      -       +      -
   1354B  LEU*     3.6    38.3    +      -       +      -
   1355B  MET*     3.6    41.2    +      -       +      +
   1501B  ARG*     4.2    17.9    -      -       +      -
   1504B  ILE*     4.2    21.8    -      -       +      -
   1505B  ILE*     6.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO1377 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1375A  ASP*     3.7    10.8    -      -       +      +
   1376A  TRP*     1.3    95.8    +      -       +      +
   1378A  ILE*     1.3    60.6    +      -       -      +
   1379A  GLN      4.1     1.0    +      -       -      -
   1387A  ASP*     4.3     8.3    -      -       -      +
   1388A  LEU      3.5     4.7    -      -       -      +
   1389A  VAL*     3.9    20.4    -      -       +      -
   1355B  MET*     5.2     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1378 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1376A  TRP*     3.5    51.6    -      -       +      +
   1377A  PRO*     1.3    73.6    -      -       -      +
   1379A  GLN*     1.3    71.5    +      -       -      +
   1380A  ILE*     3.6     9.3    +      -       +      +
   1387A  ASP*     3.4     5.5    +      -       -      +
   1388A  LEU*     2.6    42.9    +      -       +      +
   1390A  LEU*     4.1    26.5    -      -       +      -
   1501B  ARG*     6.5     0.4    -      -       +      -
   1504B  ILE*     5.2     0.4    -      -       +      -
   1505B  ILE*     3.7    39.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1379 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1377A  PRO      4.1     1.6    +      -       -      -
   1378A  ILE*     1.3    79.2    -      -       -      +
   1380A  ILE*     1.3    60.1    +      -       -      +
   1381A  ARG      4.4     0.2    +      -       -      -
   1386A  ARG      4.8     4.5    -      -       -      +
   1387A  ASP*     4.5     5.1    +      -       -      -
   1505B  ILE*     5.4     1.0    -      -       -      +
----------------------------------------------------------
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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