Contacts of the strand formed by residues 291 - 294 (chain H) in PDB entry 1TKK
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 GLU 291 (chain H).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
197B ARG* 4.9 15.6 + - - +
263H ASP 4.1 3.8 + - - -
264H LEU* 3.3 24.9 - - + +
265H ILE 3.3 19.1 + - - -
289H GLY 3.9 6.5 + - - +
290H VAL* 1.3 79.6 - - - +
292H CYS* 1.3 59.5 + - - +
316H ASN* 3.5 19.3 - - - +
318H THR* 2.5 43.4 + - - +
319H ARG* 4.4 6.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 292 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
242H MET* 5.5 1.1 - - - -
264H LEU* 5.9 0.7 - - - -
265H ILE* 3.2 20.9 - - - +
267H ILE* 3.6 30.5 - - + -
281H ILE* 4.9 0.9 - - - -
282H ASN* 3.9 14.4 - - - +
285H ALA* 3.7 28.0 - - - -
291H GLU* 1.3 79.8 - - - +
293H MET* 1.3 60.5 + - - +
316H ASN* 3.2 12.8 + - - -
317H ILE* 3.3 7.4 - - + -
318H THR* 3.2 25.8 + - - -
319H ARG* 3.8 3.9 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 293 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
133H ASP* 4.3 2.0 - - - +
160H LYS* 4.2 2.7 - - + +
189H ARG* 4.0 22.2 - - - -
217H LEU* 5.6 0.2 - - + -
219H GLU* 3.5 24.7 - - - +
242H MET* 3.7 27.0 - - + +
265H ILE 2.9 5.5 + - - -
266H ASN* 3.4 29.4 - - - +
267H ILE* 2.9 25.6 + - - +
292H CYS* 1.3 76.0 - - - +
294H VAL* 1.3 72.3 + - - +
319H ARG* 3.3 35.4 - - + +
320H PHE* 3.9 1.6 - - - +
321H ASP* 3.8 20.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 294 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
267H ILE* 3.4 18.2 - - + +
268H LYS* 5.2 1.6 - - - -
269H LEU* 5.7 2.9 - - + +
293H MET* 1.3 78.7 - - - +
295H GLY* 1.3 67.6 + - - +
307H ALA* 4.1 14.6 - - + +
310H PHE* 3.9 17.5 - - + -
311H ALA* 3.7 15.0 - - + -
317H ILE* 3.6 36.8 - - + +
319H ARG 3.2 6.6 + - - +
320H PHE* 3.6 1.4 - - - -
321H ASP* 2.9 24.1 + - - +
322H PHE* 3.4 22.8 - - + -
----------------------------------------------------------
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