Contacts of the strand formed by residues 340 - 343 (chain B) in PDB entry 2RIB
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 TRP 340 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
271B PRO* 3.5 26.7 - - + -
277B ASN* 2.8 24.4 + - - -
293B LEU* 3.5 19.3 - - + +
295B MET* 3.5 26.9 - - + -
312B LEU* 4.1 7.9 - - + -
314B TYR* 3.4 31.6 - + - -
315B SER* 3.5 20.4 - - - -
316B ASN* 2.7 32.4 + - + +
317B TRP* 3.7 24.5 - + + -
318B ALA* 2.9 27.3 + - - +
321B GLU* 4.0 0.9 - - - +
332B VAL* 3.9 9.4 - - + -
333B GLU 3.3 5.4 - - - +
334B ILE* 4.0 12.0 - - + +
335B PHE* 4.7 0.4 - - - -
338B GLY 3.5 7.2 - - - -
339B LYS* 1.3 81.1 - - - +
341B ASN* 1.3 62.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 341 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
317B TRP* 4.0 4.5 - - - -
321B GLU* 2.9 22.6 - - + +
333B GLU* 2.8 56.1 + - + +
335B PHE* 3.3 28.0 - - + -
340B TRP* 1.3 77.2 - - - +
342B ASP* 1.3 67.2 + - - +
343B ARG* 3.3 7.7 - - - +
356B GMH 3.0 22.3 + - - -
401B CA 2.5 23.6 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 342 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
304B PHE* 3.8 14.7 - - + -
317B TRP* 3.7 7.0 - - + -
321B GLU* 3.0 10.1 + - - +
322B PRO* 3.2 24.6 - - + +
323B ASN 3.0 4.7 + - - -
324B ASP* 2.7 31.8 + - - +
329B GLU* 3.1 17.5 - - - +
331B CYS 3.0 13.0 - - - +
332B VAL* 4.2 1.8 - - - +
341B ASN* 1.3 76.6 - - - +
343B ARG* 1.3 58.5 + - - +
356B GMH 3.3 2.4 + - - -
401B CA 2.5 48.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 343 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
292B PHE* 4.7 8.3 - - + -
329B GLU* 3.7 13.9 + - - +
330B ASP 3.7 0.5 + - - -
331B CYS* 2.7 34.8 + - - +
333B GLU* 2.8 40.9 + - + +
335B PHE* 4.8 5.9 - - - -
341B ASN* 3.3 14.3 + - - +
342B ASP* 1.3 74.5 - - - +
344B ALA* 1.3 81.6 + - - +
345B CYS 3.2 0.2 + - - -
347B GLU* 4.0 17.4 + - + +
349B ARG* 3.3 29.8 - - - +
356B GMH 3.6 23.0 + - - -
----------------------------------------------------------
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