Contacts of the strand formed by residues 309 - 314 (chain G) in PDB entry 1II4
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 309 (chain G).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
291G ILE* 3.6 25.4 - - + -
292G LYS 3.6 0.9 - - - -
293G HIS* 3.6 41.5 - - + +
294G VAL* 4.5 2.0 - - - -
307G PRO* 3.1 26.7 + - + +
308G TYR* 1.3 80.4 - - - +
310G LYS* 1.3 62.0 + - - +
311G VAL* 4.3 0.7 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 310 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
291G ILE* 3.3 5.8 - - - +
292G LYS* 2.9 34.3 + - + +
294G VAL* 3.6 23.3 - - + -
309G LEU* 1.3 76.4 - - - +
311G VAL* 1.3 72.2 + - - +
312G LEU* 3.2 28.6 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 311 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
289G GLN* 3.2 26.2 - - - +
290G TRP 3.6 4.7 - - - +
291G ILE* 4.6 7.6 - - + +
309G LEU 4.3 0.6 - - - -
310G LYS* 1.3 81.5 + - - +
312G LEU* 1.3 62.3 + - - +
313G LYS* 3.7 26.2 - - - +
314G ALA* 4.0 9.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 312 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
290G TRP* 2.9 15.4 + - + +
291G ILE 4.7 2.0 - - - -
292G LYS* 3.9 15.9 - - + +
310G LYS* 3.8 38.8 - - + +
311G VAL* 1.3 74.4 - - - +
313G LYS* 1.3 64.3 + - + +
327G LEU* 4.0 19.0 - - + +
329G ILE* 5.4 1.1 - - + -
340G TYR* 3.6 37.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 313 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
289G GLN* 3.0 4.8 - - - +
290G TRP* 2.7 50.4 + - + +
311G VAL* 3.4 4.3 - - - +
312G LEU* 1.3 85.6 - - + +
314G ALA* 1.3 61.5 + - - +
319G THR* 4.0 18.2 - - + -
323G GLU* 2.9 23.8 + - - +
324G ILE* 3.3 26.9 - - + +
326G VAL* 2.6 29.7 + - - +
327G LEU* 4.2 15.3 - - + +
328G TYR* 5.2 4.8 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 314 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
287G HIS* 4.1 12.3 - - + +
288G ILE 3.7 4.7 - - - -
289G GLN* 3.8 13.0 - - + +
311G VAL* 4.0 13.0 - - + +
313G LYS* 1.3 78.7 - - - +
315G ALA* 1.3 68.8 - - - +
316G GLY* 4.6 0.2 - - - -
319G THR* 3.2 18.8 + - - +
324G ILE* 4.0 3.6 - - - -
----------------------------------------------------------
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