Contacts of the strand formed by residues 304 - 308 (chain D) in PDB entry 3BFO
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 304 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
233D PRO* 3.4 42.6 - - + +
234D THR 4.1 1.8 - - - +
235D SER* 3.4 21.5 - - - +
246D LEU* 3.8 28.3 - - + -
287D THR* 3.3 7.0 - - - +
288D TYR* 2.9 48.8 + - + +
302D LYS* 4.3 7.0 - - + +
303D LYS* 1.4 76.7 - - - +
305D GLU* 1.3 63.1 + - - +
306D ILE* 4.2 0.8 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 305 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
235D SER* 2.9 15.3 + - - +
236D GLN 3.1 24.9 + - - +
285D GLN* 5.5 4.3 - - - +
286D GLY* 3.5 13.3 - - - +
287D THR* 4.5 9.3 + - + +
304D VAL* 1.3 75.6 - - - +
306D ILE* 1.3 68.4 + - - +
307D ILE* 3.8 33.0 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 306 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
234D THR 4.2 1.1 - - - +
236D GLN* 3.3 24.9 - - + +
238D LEU* 4.2 12.3 - - + -
244D LEU* 3.6 31.0 - - + -
246D LEU* 4.1 16.6 - - + -
284D HIS 4.0 9.2 - - - +
285D GLN* 3.2 8.8 - - - +
286D GLY 2.9 27.0 + - - +
288D TYR* 3.6 32.5 - - + -
304D VAL* 5.0 1.3 - - + -
305D GLU* 1.3 81.1 - - - +
307D ILE* 1.3 62.8 + - - +
308D ILE* 3.9 23.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 307 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
236D GLN 2.9 11.6 + - - +
237D LYS* 3.3 31.2 - - + +
238D LEU* 2.8 26.9 + - - +
285D GLN* 3.7 11.7 - - + +
305D GLU* 3.8 32.8 - - + +
306D ILE* 1.3 76.9 - - - +
308D ILE* 1.3 71.4 + - - +
309D ASP* 5.3 0.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 308 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
238D LEU* 3.3 7.9 - - + +
240D PRO* 3.9 26.5 - - + -
280D VAL* 3.7 27.1 - - + -
281D ASP* 3.5 25.8 - - - +
282D LEU* 3.7 29.9 - - + +
284D HIS* 4.8 0.7 - - + -
285D GLN* 2.9 40.4 + - + +
306D ILE* 3.9 17.7 - - + -
307D ILE* 1.3 83.1 - - - +
309D ASP* 1.3 59.4 + - - +
----------------------------------------------------------
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