Contacts of the strand formed by residues 233 - 237 (chain B) in PDB entry 4M83
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 VAL 233 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
224B TRP* 3.7 29.6 - - + -
226B ARG* 3.5 48.2 - - + +
227B PRO* 4.9 1.6 - - + -
230B ALA* 4.8 5.2 - - + -
232B LYS* 1.3 72.9 - - - +
234B VAL* 1.3 62.3 + - - +
263B HIS* 3.2 17.9 - - + +
265B VAL* 4.4 12.1 - - + -
295B ILE* 4.8 3.6 - - + -
298B GLN 4.1 6.5 - - - +
299B ALA* 3.4 11.4 - - + +
300B ASP* 3.0 27.5 + - - -
301B LEU* 3.4 3.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 234 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
233B VAL* 1.3 76.5 - - - +
235B LEU* 1.3 63.6 + - - +
236B VAL* 4.3 3.4 - - + -
256B PHE* 3.7 44.9 - - + -
262B TRP* 4.3 7.9 - - + -
263B HIS 3.0 13.7 + - - +
264B LEU* 3.6 9.8 - - + +
265B VAL* 2.8 30.8 + - - +
301B LEU* 3.3 22.2 - - + +
303B VAL* 3.7 29.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 235 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
233B VAL* 4.1 1.2 + - - +
234B VAL* 1.3 73.7 - - - +
236B VAL* 1.3 73.0 + - - +
237B SER* 4.4 2.7 - - - -
265B VAL* 3.7 28.5 - - + +
267B GLN* 4.7 1.6 - - + -
290B VAL* 4.2 15.0 - - + -
292B GLN* 3.8 32.3 - - + +
295B ILE* 3.9 28.9 - - + -
296B LEU* 3.9 19.5 - - + -
299B ALA* 5.1 2.4 - - + +
301B LEU 3.0 8.9 + - - +
302B PHE* 3.3 19.1 - - + -
303B VAL 2.8 27.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 236 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
234B VAL* 4.3 1.3 - - + -
235B LEU* 1.3 73.7 - - - +
237B SER* 1.3 62.0 - - - +
238B LEU* 5.0 2.5 - - + -
248B PHE* 4.3 7.6 - - + -
249B TYR* 4.3 17.0 - - + -
252B CYS* 3.8 28.5 - - + -
256B PHE* 4.8 2.0 - - + -
264B LEU* 3.6 24.7 - - + -
265B VAL 2.9 8.5 + - - +
266B LEU* 3.7 19.5 - - + -
267B GLN* 2.9 33.0 + - - +
303B VAL* 3.4 28.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 237 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
235B LEU* 4.0 6.4 + - - -
236B VAL* 1.3 76.3 - - - +
238B LEU* 1.3 60.6 + - - +
239B GLY 3.1 6.3 + - - -
267B GLN* 2.9 30.8 + - - +
290B VAL* 5.7 0.2 - - - -
292B GLN* 2.8 29.6 + - - -
302B PHE* 4.0 12.7 - - - -
303B VAL 3.0 7.7 + - - -
304B THR* 3.6 7.6 + - - -
305B HIS* 3.5 17.5 + - - -
502B UDP 3.3 5.5 - - - -
----------------------------------------------------------
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