Contacts of the strand formed by residues 183 - 187 (chain B) in PDB entry 6TOS
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.
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 MET 183 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
119B CYS* 3.3 28.7 - - - +
120B LYS* 2.7 34.9 + - - +
123B PRO* 3.9 23.6 - - + -
179B GLN* 3.3 39.0 - - - +
180B ALA* 3.3 11.4 + - - +
182B VAL* 1.4 74.6 - - - +
184B GLU* 1.3 61.2 + - - +
202B CYS* 3.8 24.0 - - - +
203B ASP* 3.5 19.5 - - - +
204B GLU* 3.7 15.5 - - + +
401B NRE 4.5 10.3 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 184 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
116B HIS* 5.2 6.6 + - - -
119B CYS* 3.6 4.5 - - - -
120B LYS* 2.8 28.9 + - - -
181B ALA 3.7 6.6 - - - +
182B VAL 4.0 1.3 - - - +
183B MET* 1.3 80.8 - - - +
185B CYS* 1.3 61.9 + - - +
186B SER* 4.1 2.4 + - - -
201B VAL 3.6 1.4 - - - +
202B CYS* 3.5 0.3 - - - -
203B ASP* 2.8 33.9 + - - +
205B ARG* 3.5 58.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 185 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
112B TRP* 3.9 23.1 - - - -
115B GLY* 4.8 7.4 - - - -
116B HIS* 3.8 38.9 + - + +
119B CYS* 3.7 19.9 - - + -
184B GLU* 1.3 74.4 + - - +
186B SER* 1.3 63.5 + - - +
197B ARG* 6.3 2.0 - - - -
200B SER* 3.9 23.3 - - - -
201B VAL 3.1 11.0 - - - -
205B ARG* 4.4 7.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 186 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
184B GLU 4.9 2.1 + - - -
185B CYS* 1.3 74.5 - - - +
187B SER* 1.3 64.2 + - - +
190B PRO* 6.2 3.4 - - - -
193B ALA* 6.2 0.7 - - - -
199B PHE 4.1 0.2 - - - +
200B SER* 4.1 4.3 - - - -
201B VAL* 2.8 44.6 + - - +
203B ASP* 6.1 0.7 - - - +
205B ARG* 3.5 26.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 187 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
186B SER* 1.3 78.9 + - - +
188B VAL* 1.4 72.7 + - - +
189B LEU 3.1 19.7 + - - -
190B PRO* 3.7 16.6 - - - +
192B LEU* 3.8 10.0 - - - +
193B ALA* 4.0 21.0 + - - +
196B THR 5.3 0.9 + - - -
199B PHE* 3.2 25.7 + - - +
200B SER* 3.7 13.1 + - - -
201B VAL* 5.8 1.6 - - - -
----------------------------------------------------------
Back to top of page
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