Contacts of the strand formed by residues 250 - 255 (chain H) in PDB entry 1YPO


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 ALA 250 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188H  LEU*     5.9     0.2    -      -       -      -
    228H  PHE*     6.0     2.5    -      -       -      -
    231H  ARG*     3.5    25.6    -      -       -      +
    246H  ILE*     3.4     2.9    -      -       -      +
    247H  GLN      2.8    33.6    +      -       -      +
    248H  ARG*     4.6     3.1    -      -       +      +
    249H  GLY*     1.3    80.4    -      -       -      +
    251H  VAL*     1.3    65.1    +      -       -      +
    252H  TYR*     3.4    18.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 251 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188H  LEU*     5.5     0.4    -      -       +      -
    204H  MET*     4.2    11.2    -      -       +      -
    228H  PHE*     3.5    53.5    -      -       +      +
    229H  ARG      3.4    10.3    +      -       -      +
    230H  VAL*     4.1     9.2    -      -       +      -
    231H  ARG*     2.8    28.7    +      -       -      +
    244H  ALA*     3.8    26.2    -      -       +      -
    245H  TYR      3.4     8.7    -      -       -      +
    246H  ILE*     4.1    14.4    -      -       +      -
    250H  ALA*     1.3    76.6    -      -       -      +
    252H  TYR*     1.3    69.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 252 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230H  VAL*     4.3     1.3    -      -       -      -
    231H  ARG*     3.4    35.4    -      -       +      +
    232H  GLY*     4.4     6.7    -      -       -      +
    243H  CYS      3.7     0.5    -      -       -      +
    244H  ALA*     3.3     5.5    -      -       -      +
    245H  TYR*     3.1    65.0    +      +       +      +
    247H  GLN*     3.2    40.0    +      -       +      -
    248H  ARG*     4.3    10.2    -      -       -      +
    250H  ALA*     3.4    23.4    -      -       +      +
    251H  VAL*     1.3    79.3    -      -       -      +
    253H  ALA*     1.3    61.1    +      -       -      +
    254H  GLU      3.8     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 253 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215H  TRP*     3.6    28.5    -      -       +      -
    230H  VAL*     3.9     1.6    -      -       +      -
    231H  ARG      2.6    19.1    +      -       -      +
    232H  GLY*     3.8     1.7    -      -       -      -
    233H  ALA*     3.0    42.2    +      -       -      +
    234H  VAL*     3.6     9.4    -      -       +      -
    242H  THR*     3.7     3.4    -      -       +      -
    243H  CYS      3.4     4.9    -      -       -      -
    244H  ALA*     4.6     0.2    -      -       -      +
    252H  TYR*     1.3    72.8    -      -       -      +
    254H  GLU*     1.3    62.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 254 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203H  TRP*     4.0     9.2    -      -       +      -
    233H  ALA*     5.1     3.0    -      -       -      +
    238H  TYR*     4.4     6.0    +      -       -      -
    242H  THR*     3.5     6.9    -      -       -      +
    243H  CYS*     2.7    38.2    +      -       -      +
    245H  TYR*     3.4    37.2    +      -       +      -
    252H  TYR      3.8     0.8    +      -       -      -
    253H  ALA*     1.3    77.8    -      -       -      +
    255H  ASN*     1.3    82.2    +      -       -      +
    258H  LEU*     3.6    28.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 255 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203H  TRP*     3.4     9.9    -      -       -      -
    238H  TYR*     3.0    53.5    -      -       +      +
    239H  PRO*     5.2     3.4    -      -       -      +
    240H  SER*     2.9    26.5    +      -       -      -
    254H  GLU*     1.3    80.0    +      -       -      +
    256H  CYS*     1.3    63.1    +      -       -      +
    257H  ILE*     2.9    27.8    +      -       +      +
    258H  LEU*     3.3    28.6    +      -       +      +
----------------------------------------------------------
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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