Contacts of the strand formed by residues 261 - 270 (chain H) in PDB entry 4BEI


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 ARG 261 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84G  GLU*     2.5    46.3    +      -       -      +
     85G  GLY      3.9     2.0    +      -       -      -
     86G  ILE*     3.4    25.0    -      -       -      +
    124G  MET*     5.7     2.0    -      -       -      -
     84H  GLU*     4.6     8.8    +      -       -      +
    161H  LEU*     3.9     2.0    -      -       -      +
    203H  TRP*     4.5     2.5    -      -       -      -
    252H  GLN*     3.2    33.2    +      -       +      +
    253H  VAL      3.4    10.8    -      -       -      +
    254H  VAL*     3.9    22.7    -      -       +      -
    259H  GLY      3.4     6.1    +      -       -      +
    260H  GLU*     1.3    75.6    -      -       -      +
    262H  VAL*     1.3    74.2    +      -       -      +
    263H  GLU*     3.2    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 262 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159H  PRO*     3.7    26.5    -      -       +      -
    160H  GLU      4.1    14.4    -      -       -      +
    161H  LEU*     3.7    17.0    -      -       +      -
    166H  ILE*     3.9    35.0    -      -       +      -
    252H  GLN*     3.4     4.7    -      -       -      +
    253H  VAL*     2.9    38.0    +      -       +      +
    261H  ARG*     1.3    77.6    -      -       -      +
    263H  GLU*     1.3    66.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 263 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84G  GLU      4.1     4.9    -      -       -      +
     85G  GLY*     3.6     9.5    -      -       -      +
     83H  PRO*     5.3     3.3    -      -       -      +
     84H  GLU      4.2    13.4    +      -       -      -
     85H  GLY      4.8     0.7    +      -       -      -
    159H  PRO*     3.5    19.5    -      -       -      +
    166H  ILE*     5.8     1.6    -      -       -      -
    250H  ASN*     3.0    17.5    -      -       -      +
    251H  ALA      3.3     5.8    -      -       -      +
    252H  GLN*     3.5    27.6    -      -       +      +
    261H  ARG*     3.2    20.5    +      -       -      +
    262H  VAL*     1.3    82.2    -      -       -      +
    264H  GLN*     1.3    63.2    +      -       -      +
    265H  SER*     4.2     1.2    +      -       -      +
   1272H  O4B      3.4    20.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 264 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158H  LEU*     5.0     4.4    -      -       -      +
    159H  PRO*     3.7    22.3    -      -       +      +
    166H  ILE*     3.6    17.7    -      -       +      +
    167H  ASP*     4.2     1.9    -      -       -      +
    168H  ILE*     3.4    54.3    +      -       +      +
    249H  ILE      4.0     0.3    -      -       -      +
    250H  ASN*     3.6     0.2    -      -       -      -
    251H  ALA*     2.8    36.4    +      -       -      +
    263H  GLU*     1.3    74.5    -      -       -      +
    265H  SER*     1.3    73.7    +      -       -      +
    266H  MET*     4.1     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 265 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248H  THR*     4.3     5.2    -      -       -      -
    249H  ILE      3.2     8.1    -      -       -      -
    250H  ASN*     2.8    26.3    +      -       -      -
    263H  GLU*     4.2     1.7    +      -       -      +
    264H  GLN*     1.3    79.0    -      -       -      +
    266H  MET*     1.3    69.6    +      -       -      +
   1272H  O4B      3.2    43.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 266 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168H  ILE*     3.7    46.0    -      -       +      +
    169H  LYS*     4.2     0.9    -      -       -      -
    170H  ASN*     4.0    17.3    -      -       +      +
    186H  PHE*     4.0    26.2    -      -       +      -
    204H  MET*     5.2     0.4    -      -       +      -
    248H  THR*     3.5     3.9    -      -       -      -
    249H  ILE*     2.6    65.8    +      -       +      +
    250H  ASN      4.9     0.2    -      -       -      +
    251H  ALA      5.1     1.3    -      -       -      +
    264H  GLN*     4.1     7.6    -      -       +      +
    265H  SER*     1.3    86.1    -      -       -      +
    267H  THR*     1.3    64.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 267 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170H  ASN*     5.1     1.4    +      -       -      -
    175H  ASN*     4.2    17.2    +      -       -      +
    246H  GLU*     4.1    24.6    +      -       -      +
    247H  TYR      3.4     7.3    +      -       -      -
    248H  THR*     4.6     6.5    -      -       -      +
    266H  MET*     1.3    79.8    -      -       -      +
    268H  VAL*     1.3    68.7    +      -       -      +
    269H  VAL*     5.0     4.7    -      -       -      +
   1272H  O4B      5.0    17.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 268 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170H  ASN*     4.2     2.9    -      -       -      +
    174H  ILE      4.2    14.4    -      -       -      +
    175H  ASN      3.7     8.5    -      -       -      +
    176H  SER*     4.3     8.5    -      -       -      -
    177H  VAL*     4.7     1.3    -      -       +      +
    184H  VAL*     4.4    12.6    -      -       +      -
    186H  PHE*     4.1    15.3    -      -       +      -
    238H  PHE*     3.7    32.8    -      -       +      -
    247H  TYR*     2.7    47.4    +      -       -      +
    249H  ILE*     4.0    18.2    -      -       +      -
    266H  MET*     4.1     0.8    +      -       +      -
    267H  THR*     1.3    82.3    +      -       -      +
    269H  VAL*     1.3    69.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 269 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175H  ASN      3.1    16.9    +      -       -      +
    176H  SER*     3.1    14.0    -      -       -      -
    177H  VAL      3.0    23.6    +      -       -      -
    245H  GLY*     3.3    14.8    -      -       -      +
    246H  GLU*     4.5    10.5    -      -       +      +
    267H  THR*     5.0     7.0    -      -       -      +
    268H  VAL*     1.3    77.3    -      -       -      +
    270H  LYS*     1.3    70.3    +      -       -      +
    271H  LYS*     4.3    16.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 270 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177H  VAL*     3.6    14.6    -      -       +      -
    178H  GLU      4.0    13.0    -      -       -      +
    179H  SER*     2.8    31.8    +      -       -      +
    181H  GLY*     4.6     0.7    -      -       -      -
    238H  PHE*     4.6    11.7    -      -       +      -
    239H  ASP      3.3    20.2    -      -       -      -
    240H  LYS*     2.9     8.9    +      -       -      +
    242H  TYR*     2.6    37.2    +      -       +      +
    243H  PRO      3.7    10.4    -      -       -      +
    244H  ALA*     3.4     2.4    -      -       -      +
    245H  GLY*     2.7    35.9    +      -       -      +
    247H  TYR*     3.8    20.2    -      -       +      -
    268H  VAL*     4.1     1.6    +      -       -      +
    269H  VAL*     1.3    74.3    -      -       -      +
    271H  LYS*     1.3    69.7    +      -       -      +
----------------------------------------------------------
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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