Contacts of the strand formed by residues 326 - 329 (chain B) in PDB entry 2XFN
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 TYR 326 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
167B LEU* 5.2 0.7 - - + -
171B LEU* 3.5 47.8 - - + -
199B ILE 4.2 3.5 + - - -
201B THR* 4.1 2.4 + - - -
206B GLN* 5.1 9.3 + - + +
314B THR* 3.9 7.9 - - + +
315B MET 3.2 14.4 - - - -
316B ILE* 3.8 17.3 - - + -
324B VAL* 3.3 5.5 - - - +
325B ALA* 1.3 83.3 - - + +
327B THR* 1.3 66.6 + - - +
328B LEU* 3.7 39.0 - - + +
341B MET* 5.1 0.4 - - + -
342B GLY* 3.3 0.5 - - - -
343B PHE* 3.2 38.3 + + + +
345B LEU* 5.2 1.9 - - + +
1501B XCG 2.8 48.8 + + - -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 327 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
313B GLY 2.8 15.6 + - - -
314B THR* 3.2 18.2 - - - +
315B MET* 2.9 35.2 + - + +
317B ILE* 4.7 1.8 - - + -
324B VAL* 3.7 9.0 - - + -
326B TYR* 1.3 84.9 - - - +
328B LEU* 1.3 72.0 + - - +
340B ILE* 3.7 10.5 - - + -
341B MET* 3.0 12.6 - - - +
368B TYR* 3.5 38.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 328 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60B TYR* 3.4 45.3 - - + +
82B VAL* 4.5 13.2 - - + -
83B ASN 5.8 0.2 - - - +
201B THR* 3.9 13.5 - - + +
206B GLN* 4.1 19.3 - - + -
313B GLY 3.9 7.9 - - - -
314B THR* 3.4 21.3 - - - +
326B TYR* 3.7 27.1 - - + +
327B THR* 1.3 78.4 - - - +
329B ASP* 1.3 66.3 + - - +
340B ILE* 3.7 2.5 - - - -
341B MET* 2.8 40.2 + - + +
343B PHE* 5.9 0.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 329 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60B TYR* 5.2 0.9 + - - -
82B VAL* 4.0 18.4 - - - +
83B ASN* 3.2 18.4 + - + +
209B LYS* 5.4 2.1 - - - +
306B TRP* 3.0 23.9 + - - +
307B ARG* 2.8 30.5 + - - -
312B CYS 3.1 20.8 - - - +
313B GLY 3.9 5.5 + - - -
314B THR* 4.6 1.4 + - - +
328B LEU* 1.3 75.1 - - - +
330B ASP* 1.3 59.5 + - - +
331B THR* 2.6 37.0 + - - +
339B ALA 3.3 6.2 - - - +
340B ILE* 4.5 5.4 - - - -
----------------------------------------------------------
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