Contacts of the strand formed by residues 235 - 239 (chain K) in PDB entry 7JOA
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 TYR 235 (chain K).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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225K LEU* 4.4 26.0 - - + -
226K GLN 3.6 15.7 - - - +
227K GLU* 3.8 26.8 + - + +
228K TYR* 4.6 0.7 - - - -
232K GLY* 4.1 22.8 + - - -
233K ALA 5.7 0.4 - - - -
234K PHE* 1.3 85.0 - - - +
236K LEU* 1.3 65.6 + - - +
237K VAL* 5.4 0.2 - - - -
319K PRO* 4.4 11.5 - - + +
320K ILE* 5.9 0.3 - - - +
321K SER* 3.2 31.5 + - - -
347K LEU* 5.2 3.6 - - + -
362K THR* 3.8 6.6 - - - -
363K TRP* 3.2 41.2 + - + +
364K ARG* 5.7 1.3 - - - -
365K LEU* 3.5 44.5 - - + +
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Residues in contact with LEU 236 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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224K GLU 3.5 0.9 - - - +
225K LEU* 3.4 8.0 - - - +
226K GLN* 2.9 62.3 + - + +
227K GLU 4.8 0.9 - - - +
228K TYR* 3.6 32.5 - - + -
235K TYR* 1.3 76.3 - - - +
237K VAL* 1.3 62.4 + - - +
238K LYS* 5.4 2.4 - - + +
256K VAL* 4.3 19.1 - - + -
358K PHE* 4.1 30.3 - - + -
361K GLU 3.2 29.8 - - - +
362K THR* 4.5 5.2 - - + -
363K TRP* 5.0 0.2 - - - -
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Residues in contact with VAL 237 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
223K ILE* 4.4 20.2 - - + -
224K GLU 3.6 2.9 - - - -
225K LEU* 3.7 17.0 - - + -
235K TYR* 5.4 0.4 - - + -
236K LEU* 1.3 78.3 - - - +
238K LYS* 1.3 77.7 + - - +
239K PHE* 4.5 8.5 - - + -
256K VAL* 3.7 7.8 - - + +
257K LEU* 3.6 37.3 + - + +
312K LEU* 5.3 6.1 - - + -
347K LEU* 4.4 13.0 - - + -
363K TRP* 3.8 36.7 - - + +
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Residues in contact with LYS 238 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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223K ILE* 3.5 2.6 - - - +
224K GLU* 2.9 54.3 + - + +
226K GLN* 4.3 37.8 - - - +
236K LEU* 5.4 1.3 - - + -
237K VAL* 1.3 79.2 - - - +
239K PHE* 1.3 76.5 + - - +
252K LEU* 6.2 0.7 - - - -
255K GLU* 3.6 38.8 - - + +
256K VAL* 4.2 9.6 - - + -
257K LEU 5.5 0.4 - - - +
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Residues in contact with PHE 239 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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109D HIS* 4.9 5.4 + - - -
220K VAL* 3.8 20.4 - - + -
221K PRO* 4.5 6.1 - - + -
222K ARG 4.0 5.8 - - - +
223K ILE* 3.5 27.8 - - + -
224K GLU* 5.3 1.7 - - - +
237K VAL* 4.5 9.0 - - + -
238K LYS* 1.3 88.0 - - - +
240K LYS* 1.3 68.2 + - - +
242K ILE* 5.3 1.6 - - + -
246K ASN* 3.0 44.2 - - - +
248K LEU* 4.2 25.6 - - + -
252K LEU* 5.3 16.5 - - + +
255K GLU 4.7 3.4 + - - -
257K LEU* 4.9 20.2 - - + -
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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