Contacts of the strand formed by residues 290 - 294 (chain C) in PDB entry 2IHU
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 LEU 290 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
209C ALA 4.7 1.8 - - - +
212C LEU* 3.8 13.0 - - + +
213C LEU* 3.5 38.8 - - + +
216C ALA* 3.8 16.4 - - + -
218C HIS 3.9 0.4 + - - -
219C PRO* 3.3 6.8 - - + +
220C VAL 2.9 27.7 + - - +
288C VAL* 3.6 5.3 - - - +
289C ASP* 1.3 82.5 + - - +
291C VAL* 1.3 63.3 + - - +
292C LEU* 3.9 23.6 - - + -
314C LYS* 3.3 32.5 - - + +
316C VAL* 4.1 22.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 291 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
220C VAL* 3.8 6.7 - - + -
222C VAL* 3.8 27.1 - - + -
285C PHE* 5.4 0.7 - - + -
288C VAL* 4.0 17.3 - - + -
290C LEU* 1.3 76.3 - - - +
292C LEU* 1.3 62.3 + - - +
293C THR* 3.8 18.9 + - + +
307C TRP* 3.9 36.3 - - + -
313C LYS* 4.1 13.7 - - + -
314C LYS 2.8 10.8 + - - +
315C THR* 3.2 11.4 - - + -
316C VAL 2.8 25.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 292 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
209C ALA* 4.9 1.3 - - + +
213C LEU* 4.9 6.3 - - + -
219C PRO* 4.4 9.6 - - + -
220C VAL 3.0 20.9 + - - +
221C LEU* 3.5 21.7 - - + -
222C VAL 2.8 25.3 + - - -
245C ILE* 5.6 1.8 - - + -
290C LEU* 3.9 26.7 - - + -
291C VAL* 1.3 70.8 - - - +
293C THR* 1.3 62.4 + - - +
294C VAL* 3.2 9.2 + - + +
316C VAL* 3.5 34.5 - - + +
318C ILE* 4.6 7.4 - - + -
342C PHE* 4.6 4.9 - - + -
346C PHE* 4.0 30.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 293 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
222C VAL* 3.4 13.9 - - + -
291C VAL* 3.8 15.7 - - + -
292C LEU* 1.3 68.5 - - - +
294C VAL* 1.3 60.3 + - - +
295C GLY 3.5 0.4 + - - -
296C TYR* 3.4 32.0 + - + +
307C TRP* 3.6 37.2 - - + -
316C VAL 2.8 12.6 + - - -
317C ARG* 3.5 3.1 - - - -
318C ILE* 3.1 27.2 + - - +
329C TYR* 2.9 21.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 294 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
221C LEU* 4.1 26.2 - - + -
222C VAL 2.8 11.9 + - - +
223C VAL* 3.6 7.8 - - + -
224C GLY 3.0 24.4 + - - -
227C ALA* 3.9 4.5 - - + +
236C ILE* 3.8 22.7 - - + -
292C LEU* 3.6 13.7 - - + +
293C THR* 1.3 69.5 - - - +
295C GLY* 1.3 61.7 + - - +
318C ILE* 4.0 21.1 - - + -
339C VAL* 3.7 25.6 - - + -
342C PHE* 4.9 7.9 - - + -
343C VAL* 4.8 5.6 - - + -
----------------------------------------------------------
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