Contacts of the strand formed by residues 268 - 272 (chain A) in PDB entry 5KOQ
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 ILE 268 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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208A VAL* 4.2 14.8 - - + -
209A SER 3.1 10.1 - - - +
210A VAL* 4.4 2.9 - - + -
242A LEU* 3.8 25.8 - - + -
246A LEU* 3.8 13.5 - - + -
266A PRO 3.7 1.5 + - - +
267A ASP* 1.3 76.4 - - - +
269A SER* 1.3 60.0 + - - +
270A PHE* 3.7 28.7 - - + -
277A TYR 3.8 1.6 - - - +
278A THR* 4.4 0.2 - - - -
279A LEU* 2.7 42.8 + - + +
284A TYR* 3.5 35.0 - - + +
300A ILE* 3.8 22.2 - - + -
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Residues in contact with SER 269 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
207A GLY 3.7 0.5 - - - +
208A VAL* 3.2 8.8 - - - +
209A SER* 2.8 48.3 + - - -
211A GLY 5.3 3.5 + - - -
267A ASP* 4.1 2.4 + - - +
268A ILE* 1.3 72.8 + - - +
270A PHE* 1.3 64.2 + - - +
271A HIS 4.1 0.2 - - - -
276A GLU* 3.7 26.0 - - - +
277A TYR 3.4 2.9 - - - -
278A THR* 2.9 30.9 + - - +
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Residues in contact with PHE 270 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
205A MET* 3.8 26.2 - - + -
207A GLY 3.5 2.9 - - - -
208A VAL* 4.0 16.6 - - + -
232A ILE* 3.7 48.9 - - + -
242A LEU* 6.2 0.7 - - + -
268A ILE* 3.7 23.8 - - + -
269A SER* 1.3 72.9 - - - +
271A HIS* 1.3 61.5 + - - +
272A LEU* 3.2 19.6 + - + +
276A GLU* 4.0 1.1 - - - -
277A TYR* 2.8 49.2 + - + +
279A LEU* 4.1 14.6 - - + -
300A ILE* 6.0 2.7 - - + -
313A TRP* 4.2 16.6 - + - -
315A LEU* 4.2 10.5 - - + -
319A PHE* 4.1 13.0 - + + -
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Residues in contact with HIS 271 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
204A GLN 4.3 0.3 - - - +
205A MET* 3.4 7.1 - - - +
206A LYS* 3.0 61.7 + - + +
207A GLY* 2.8 16.8 + - - +
270A PHE* 1.3 67.6 - - - +
272A LEU* 1.3 59.2 + - - +
273A GLY 4.3 0.7 + - - -
274A GLY* 3.6 37.0 - - - -
275A LYS 3.4 6.7 + - - -
276A GLU* 2.7 34.2 + - - +
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Residues in contact with LEU 272 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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191A HIS* 3.2 12.3 - - - -
193A ILE* 3.8 14.8 - - + -
203A ILE* 3.7 23.3 - - + -
204A GLN 3.9 5.2 - - - +
205A MET* 3.7 36.8 - - + -
223A ALA* 4.1 7.4 - - + -
270A PHE* 3.2 12.7 + - + +
271A HIS* 1.3 73.4 - - - +
273A GLY* 1.3 67.3 + - - +
274A GLY 3.2 0.7 - - - -
275A LYS 2.8 20.7 + - - +
277A TYR* 3.6 14.0 - - + -
315A LEU* 3.8 14.1 - - + -
319A PHE* 3.7 29.4 - - + -
336A PHE* 4.3 5.2 - - + -
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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