Contacts of the strand formed by residues 49 - 56 (chain S) in PDB entry 1YIT


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 VAL 49 (chain S).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38S  ALA*     3.6    20.0    -      -       +      +
     41S  VAL*     4.1    13.2    -      -       +      -
     42S  GLU*     2.6    40.7    +      -       +      +
     47S  VAL*     4.7     0.7    -      -       +      -
     48S  THR*     1.3    75.0    -      -       -      +
     50S  GLU*     1.3    68.5    +      -       -      +
     51S  GLN*     4.0     5.6    -      -       -      +
     52S  VAL*     3.5    31.9    -      -       +      -
     66S  VAL*     3.5    23.1    -      -       +      -
     67S  ARG      3.8     2.9    -      -       -      -
     68S  LEU*     4.4     4.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 50 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48S  THR*     3.6    13.0    +      -       -      +
     49S  VAL*     1.3    77.4    -      -       -      +
     51S  GLN*     1.3    60.6    +      -       -      +
     67S  ARG*     2.8    41.2    +      -       -      +
     68S  LEU      3.9     2.9    -      -       -      +
     69S  SER*     3.3    42.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 51 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   15070    C      3.7    18.2    +      -       -      -
   15080    C      4.3    13.0    +      -       -      -
     23S  LYS*     6.0     1.0    -      -       -      +
     49S  VAL*     4.6     0.2    -      -       -      -
     50S  GLU*     1.3    81.6    -      -       -      +
     52S  VAL*     1.3    72.3    +      -       -      +
     53S  ASN*     3.2    26.3    +      -       -      +
     65S  VAL      4.0     0.7    -      -       -      +
     66S  VAL*     3.6     0.2    -      -       -      -
     67S  ARG*     3.0    62.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 52 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34S  LYS*     3.2    51.1    +      -       +      +
     37S  VAL*     3.9    27.8    -      -       +      -
     38S  ALA*     4.0     9.2    -      -       +      -
     49S  VAL*     3.5    22.9    -      -       +      -
     51S  GLN*     1.3    84.1    -      -       -      +
     53S  ASN*     1.3    73.0    +      -       -      +
     54S  THR*     4.2     6.1    -      -       +      -
     64S  ALA*     4.3     0.9    -      -       +      -
     65S  VAL      3.6     2.5    -      -       -      -
     66S  VAL*     4.0    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 53 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   14470    U      3.3    42.1    +      -       -      +
   14480    A      3.8    10.0    -      -       -      +
   15070    C      2.9    30.9    +      -       -      +
     34S  LYS*     5.4     1.0    -      -       -      +
     51S  GLN*     3.2    30.3    -      -       -      +
     52S  VAL*     1.3    81.7    +      -       -      +
     54S  THR*     1.3    61.3    +      -       -      +
     63S  LYS      3.9     0.2    -      -       -      +
     64S  ALA*     3.3     2.9    -      -       -      +
     65S  VAL*     2.7    45.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 54 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   14470    U      3.4    19.2    -      -       -      +
   14480    A      3.5    12.4    +      -       -      -
   16740    C      4.3     4.4    +      -       -      +
   16750    C      4.2    14.4    +      -       -      -
   80280   MG      4.2     2.4    -      -       -      -
     34S  LYS*     3.8    36.4    -      -       +      +
     37S  VAL*     4.7     3.8    -      -       +      -
     52S  VAL*     4.2     5.2    -      -       +      -
     53S  ASN*     1.3    80.3    -      -       -      +
     55S  GLN*     1.3    64.8    +      -       -      +
     62S  LYS*     4.0    23.0    -      -       +      +
     63S  LYS      3.2     6.3    -      -       -      -
     64S  ALA*     4.2    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 55 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   14460    U      3.0    77.5    +      -       -      +
   14470    U      4.3    13.6    -      -       -      +
   16770    U      6.3     1.6    -      -       +      -
      82  LYS*     5.7     1.0    -      -       -      +
     54S  THR*     1.3    78.9    -      -       -      +
     56S  ASN*     1.3    68.7    +      -       -      +
     57S  THR*     3.4    23.6    +      -       -      +
     58S  MET      5.5     0.2    -      -       -      +
     62S  LYS*     3.2     4.3    -      -       -      +
     63S  LYS*     2.7    54.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 56 (chain S). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   16750    C      2.9    35.1    +      -       -      -
   16760    G      2.9    39.4    +      -       -      +
   16770    U      4.5     0.3    +      -       -      -
      52  LYS*     3.8    18.4    -      -       +      +
      82  LYS*     2.9    31.1    +      -       +      -
     30S  ASP*     3.8     4.5    -      -       -      +
     55S  GLN*     1.3    73.9    -      -       -      +
     57S  THR*     1.3    61.5    +      -       -      +
     61S  GLU      4.0     3.1    -      -       -      +
     62S  LYS*     3.5    26.9    +      -       -      +
----------------------------------------------------------
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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