Contacts of the strand formed by residues 251 - 259 (chain E) in PDB entry 4K81
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 251 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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242E HIS* 3.4 28.6 + - + -
243E ALA 3.3 3.4 - - - -
244E LYS* 3.4 43.4 - - + +
245E GLU* 4.8 0.4 - - - -
249E LYS 4.5 1.1 + - - -
250E SER* 1.3 86.0 - - - +
252E LYS* 1.3 65.1 + - - +
298E HIS* 4.6 2.6 + - + -
299E GLY* 3.3 32.1 - - - +
300E ALA* 3.5 20.8 - - + +
301E PRO* 3.6 29.4 - - + -
321E MET* 3.7 45.1 - - + -
322E LEU 3.7 19.3 - - - -
323E CYS* 3.8 4.9 - - - -
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Residues in contact with LYS 252 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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242E HIS* 3.9 4.3 - - - -
243E ALA 2.8 36.2 + - - +
245E GLU* 3.9 29.0 + - + +
250E SER 4.3 0.2 + - - -
251E TRP* 1.3 75.2 - - - +
253E LYS* 1.3 58.1 + - - +
254E ILE* 2.9 26.9 + - + +
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Residues in contact with LYS 253 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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240E PHE* 3.3 45.5 - - + +
241E LEU 3.5 7.2 - - - +
242E HIS* 4.1 33.1 + - + +
252E LYS* 1.3 69.0 - - - +
254E ILE* 1.3 63.1 + - - +
325E GLU* 3.1 30.4 + - - -
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Residues in contact with ILE 254 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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240E PHE* 3.4 2.7 - - - -
241E LEU 3.0 28.5 + - - +
243E ALA* 3.7 24.5 - - + +
245E GLU* 6.1 5.4 - - + -
252E LYS* 2.9 30.2 + - + +
253E LYS* 1.3 74.3 - - - +
255E TYR* 1.3 67.4 + - - +
256E PHE* 3.6 16.3 - - + -
265E PHE* 3.8 31.6 - - + -
266E SER 3.5 22.0 - - - +
280E PHE* 6.1 0.7 - - + -
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Residues in contact with TYR 255 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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207E HIS 5.1 0.2 + - - -
238E HIS* 3.6 29.9 - - + -
239E GLY* 3.4 29.5 + - - -
240E PHE* 3.5 38.2 - + + -
253E LYS 4.0 0.2 + - - -
254E ILE* 1.3 76.6 - - - +
256E PHE* 1.3 59.8 + - - +
257E PHE* 3.7 38.3 - + - -
265E PHE* 3.2 4.9 - - - +
266E SER* 2.8 30.7 + - - -
269E GLY 3.4 21.8 + - - +
270E THR* 3.9 24.2 - - + -
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Residues in contact with PHE 256 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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238E HIS* 3.1 27.2 - - - +
239E GLY 2.9 15.6 + - - +
241E LEU* 3.8 30.7 - - + -
243E ALA* 4.0 12.6 - - + -
254E ILE* 3.6 30.7 - - + -
255E TYR* 1.3 76.0 - - - +
257E PHE* 1.3 64.2 + - - +
258E LEU 4.3 0.2 - - - -
263E LEU* 3.8 22.4 - - + -
264E TYR 3.3 15.5 - - - -
265E PHE* 3.7 17.5 - + + +
280E PHE* 3.9 27.8 - + + -
322E LEU* 3.8 17.9 - - + -
333E TRP* 3.9 16.3 - - + -
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Residues in contact with PHE 257 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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236E GLU* 3.2 34.5 - - - +
237E ILE 3.4 4.7 - - - -
238E HIS* 4.0 10.1 - + + -
255E TYR* 3.7 29.8 - + - -
256E PHE* 1.3 75.6 - - - +
258E LEU* 1.3 59.6 + - - +
259E ARG* 3.9 13.4 + - + +
262E GLY 3.8 0.9 - - - +
263E LEU* 3.5 4.1 - - - -
264E TYR* 2.7 50.3 + - + +
266E SER* 4.0 11.0 - - - -
270E THR 3.5 22.9 - - - -
271E SER 3.7 18.2 - - - -
272E ALA* 4.1 14.4 - - + -
277E LEU* 3.7 20.9 - - + -
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Residues in contact with LEU 258 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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234E TYR* 4.0 15.7 - - + -
235E PRO 3.8 3.0 - - - +
236E GLU* 3.5 9.4 - - - +
237E ILE* 2.7 38.5 + - + +
256E PHE 4.3 0.2 - - - -
257E PHE* 1.3 71.7 - - - +
259E ARG* 1.3 62.0 + - - +
262E GLY 3.7 6.5 - - - +
263E LEU* 4.0 11.5 - - + +
283E PHE* 3.8 20.4 - - + -
333E TRP* 4.0 13.2 - - + -
336E ALA* 3.7 35.9 - - + +
337E ILE* 3.8 18.8 - - + -
340E LEU* 3.7 24.2 - - + -
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Residues in contact with ARG 259 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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234E TYR* 4.6 9.2 - - - -
235E PRO 5.1 1.1 - - - -
236E GLU* 2.8 37.1 + - + +
257E PHE* 4.5 16.2 - - + +
258E LEU* 1.3 79.8 - - - +
260E ARG* 1.3 66.9 + - - +
261E SER* 3.1 12.6 - - - +
262E GLY 2.7 22.4 + - - +
264E TYR* 4.5 11.6 - - + -
272E ALA* 4.2 23.4 + - - +
277E LEU* 3.7 26.0 - - - +
340E LEU* 3.6 12.1 - - - +
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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