Contacts of the helix formed by residues 301 - 316 (chain A) in PDB entry 5I0H


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 SER 301 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299A  THR      4.3     1.2    +      -       -      -
    300A  ILE*     1.3    70.4    -      -       -      +
    302A  ASP*     1.3    58.9    +      -       -      +
    303A  GLN*     3.9     5.5    +      -       -      +
    304A  GLU*     3.3    33.4    +      -       -      +
    305A  SER*     3.0    29.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  ARG*     3.0    41.4    +      -       -      -
    261A  HIS*     4.7     2.3    -      -       -      +
    264A  TYR*     3.6    31.3    -      -       -      +
    265A  ALA*     3.4    14.0    +      -       -      +
    268A  ALA*     3.9    10.3    -      -       +      -
    295A  VAL      4.3     3.3    -      -       -      +
    296A  GLU*     4.9     5.4    -      -       -      +
    297A  ASP      5.4     0.5    +      -       -      -
    300A  ILE*     3.4    17.6    +      -       -      +
    301A  SER*     1.3    69.1    -      -       -      +
    303A  GLN*     1.4    64.9    +      -       -      +
    305A  SER*     3.3     6.3    +      -       -      -
    306A  PHE*     3.0    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 303 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  ALA*     3.7    36.9    +      -       +      +
    269A  GLY*     4.4     9.1    +      -       -      +
    301A  SER*     3.3     6.0    +      -       -      +
    302A  ASP*     1.4    77.7    -      -       -      +
    304A  GLU*     1.3    65.9    +      -       +      +
    306A  PHE*     3.3     5.2    +      -       -      +
    307A  ARG*     3.2    19.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 304 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301A  SER*     3.3    26.5    +      -       -      +
    303A  GLN*     1.3    80.3    -      -       +      +
    305A  SER*     1.4    66.2    +      -       -      +
    307A  ARG*     3.3    38.6    +      -       -      +
    308A  GLU*     3.1    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 305 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  ALA*     6.2     1.6    -      -       -      -
    261A  HIS*     6.0     5.2    -      -       -      -
    265A  ALA*     4.4     9.9    -      -       -      -
    300A  ILE*     4.2    12.7    -      -       -      +
    301A  SER      3.0    15.6    +      -       -      -
    302A  ASP*     3.3    11.0    +      -       -      -
    304A  GLU*     1.4    72.1    -      -       -      +
    306A  PHE*     1.3    60.8    +      -       -      +
    308A  GLU*     3.2    14.0    +      -       -      +
    309A  VAL*     2.9    36.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 306 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  ILE*     4.8    12.6    -      -       +      -
    265A  ALA*     3.3    38.8    -      -       +      +
    266A  LEU*     3.7    22.2    -      -       +      -
    269A  GLY*     3.6    30.3    -      -       -      -
    270A  LEU*     3.9    25.6    -      -       +      -
    302A  ASP      3.0     8.3    +      -       -      +
    303A  GLN      3.3     9.2    +      -       -      +
    305A  SER*     1.3    75.2    -      -       -      +
    307A  ARG*     1.3    58.3    +      -       -      +
    309A  VAL*     3.2     6.4    +      -       +      +
    310A  ILE*     2.9    64.4    +      -       +      +
    323A  VAL*     5.8     0.2    -      -       +      -
    327A  SER*     4.5     5.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 307 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303A  GLN      3.2     9.9    +      -       -      +
    304A  GLU*     3.5    37.9    +      -       -      +
    305A  SER      3.3     0.2    -      -       -      -
    306A  PHE*     1.3    78.0    -      -       -      +
    308A  GLU*     1.3    62.6    +      -       -      +
    310A  ILE*     3.4     8.9    +      -       +      +
    311A  THR*     3.1    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 308 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  GLU*     4.6     2.4    -      -       -      +
    202A  PRO*     3.7    30.3    -      -       +      +
    304A  GLU      3.1    14.1    +      -       -      +
    305A  SER*     3.4    15.3    +      -       -      +
    307A  ARG*     1.3    74.7    -      -       -      +
    309A  VAL*     1.4    58.3    +      -       +      +
    311A  THR*     3.5     6.1    +      -       -      -
    312A  ALA*     3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  PRO*     3.8    13.9    -      -       +      +
    203A  ILE*     4.8     5.8    -      -       +      -
    206A  ALA*     3.5    28.3    -      -       +      -
    207A  PHE*     4.6     3.1    -      -       +      -
    262A  ILE*     4.1    18.4    -      -       +      -
    265A  ALA*     5.6     0.9    -      -       +      -
    305A  SER*     2.9    25.0    +      -       -      +
    306A  PHE*     3.2     9.4    +      -       +      +
    308A  GLU*     1.4    74.2    -      -       -      +
    310A  ILE*     1.4    55.9    +      -       +      +
    312A  ALA*     3.2     6.8    +      -       -      +
    313A  MET*     2.8    63.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306A  PHE*     2.9    57.3    +      -       +      +
    307A  ARG*     3.7     9.2    -      -       +      +
    308A  GLU      3.4     0.2    -      -       -      -
    309A  VAL*     1.4    77.7    -      -       +      +
    311A  THR*     1.3    63.0    +      -       -      +
    313A  MET*     3.4    10.1    +      -       -      +
    314A  ASP*     3.1    23.0    +      -       +      +
    323A  VAL*     3.6    33.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  GLU*     4.7    13.5    -      -       -      +
    307A  ARG*     3.1    25.5    +      -       -      +
    308A  GLU*     3.7     7.0    -      -       -      -
    310A  ILE*     1.3    73.7    -      -       -      +
    312A  ALA*     1.4    67.6    +      -       -      +
    314A  ASP*     3.3    10.4    +      -       -      +
    315A  VAL*     3.1    26.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 312 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  GLU*     3.4    48.9    +      -       -      +
    202A  PRO*     4.0     6.1    -      -       +      -
    203A  ILE*     3.6    13.0    -      -       +      +
    308A  GLU      3.0    17.8    +      -       -      +
    309A  VAL*     3.5     4.9    -      -       -      +
    311A  THR*     1.4    76.9    -      -       -      +
    313A  MET*     1.4    56.2    +      -       -      +
    315A  VAL*     3.2     4.7    +      -       -      +
    316A  MET*     2.9    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 313 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  ILE*     3.9    20.0    -      -       +      -
    207A  PHE*     3.5    36.6    -      -       +      -
    262A  ILE*     5.5     0.2    -      -       +      -
    309A  VAL*     2.8    38.7    +      -       +      +
    310A  ILE*     3.8     7.6    -      -       -      +
    311A  THR      3.3     0.2    -      -       -      -
    312A  ALA*     1.4    70.4    -      -       -      +
    314A  ASP*     1.3    60.2    +      -       -      +
    316A  MET      3.2     5.9    +      -       -      -
    317A  GLN      3.3     0.2    +      -       -      -
    318A  PHE*     3.0    58.4    +      -       +      -
    323A  VAL*     4.0    35.0    -      -       +      -
    326A  VAL*     4.8     9.9    -      -       +      -
    413A  VAL*     5.2     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 314 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310A  ILE*     3.1    13.9    +      -       +      +
    311A  THR*     3.4    13.5    -      -       -      +
    313A  MET*     1.3    72.1    -      -       -      +
    315A  VAL*     1.3    68.8    +      -       -      +
    317A  GLN*     3.1    15.4    +      -       -      +
    318A  PHE      4.4     9.3    -      -       -      +
    323A  VAL*     5.5     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 315 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  ARG*     4.0    29.8    -      -       -      +
    196A  ALA*     3.8    29.2    -      -       +      +
    199A  GLU*     3.9    25.8    -      -       +      +
    311A  THR*     3.1    19.1    +      -       +      +
    312A  ALA      3.5     7.0    -      -       -      +
    314A  ASP*     1.3    79.0    -      -       -      +
    316A  MET*     1.3    57.6    +      -       -      +
    317A  GLN*     3.1     5.5    +      -       -      +
    420A  ARG*     3.0    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 316 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ALA*     3.2    30.7    -      -       -      +
    199A  GLU*     3.6    15.9    -      -       +      +
    200A  SER*     3.5    23.1    -      -       -      +
    203A  ILE*     3.8     7.6    -      -       +      -
    312A  ALA      2.9    13.0    +      -       -      +
    313A  MET      3.2     6.4    +      -       -      +
    315A  VAL*     1.3    74.0    -      -       -      +
    317A  GLN*     1.3    68.0    +      -       -      +
    318A  PHE*     3.4    26.4    -      -       +      -
    416A  LYS*     4.3     6.4    -      -       -      +
    417A  ILE*     3.9    31.9    -      -       +      +
    420A  ARG*     3.6    33.4    -      -       +      +
    421A  ILE*     4.6     0.7    -      -       -      -
----------------------------------------------------------
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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