Contacts of the strand formed by residues 286 - 291 (chain A) in PDB entry 4Z2C
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 286 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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274A ILE* 4.3 23.1 - - + +
278A VAL* 4.8 14.6 - - + -
283A ILE* 5.2 12.3 - - + +
284A GLU* 4.5 4.0 - - - +
285A GLY* 1.3 78.7 - - - +
287A THR* 1.3 63.4 + - - +
288A ALA* 3.6 23.8 - - - +
289A VAL* 3.9 13.5 - - + -
302A ILE* 5.2 9.0 - - + -
303A GLU 3.8 5.2 - - - +
304A VAL* 4.6 0.9 - - + +
305A LYS* 4.2 8.3 + - - +
313A ILE* 4.0 28.5 - - + -
317A LEU* 5.0 9.2 - - + -
407C LEU* 4.3 17.1 - - + +
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Residues in contact with THR 287 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
253A ARG* 3.3 35.9 + - - +
285A GLY 3.6 2.0 + - - -
286A ILE* 1.3 73.8 - - - +
288A ALA* 1.3 67.4 + - + +
303A GLU* 2.6 18.9 + - - +
305A LYS* 3.3 31.6 - - - +
405C SER* 3.9 9.6 - - - -
407C LEU* 3.8 13.1 - - - +
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Residues in contact with ALA 288 (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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286A ILE* 3.6 5.0 - - - +
287A THR* 1.3 85.4 - - + +
289A VAL* 1.3 71.6 + - - +
290A ARG* 4.1 10.8 - - + -
301A VAL* 4.4 0.4 - - + -
302A ILE* 3.4 2.8 - - - -
303A GLU* 2.9 45.6 + - + +
404C LYS 5.1 0.9 - - - +
405C SER* 3.6 24.2 - - - +
407C LEU* 4.9 0.2 - - - -
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Residues in contact with VAL 289 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
271A HIS* 3.3 45.1 + - + +
274A ILE* 4.0 23.8 - - + -
275A VAL* 4.9 1.8 - - + -
286A ILE* 3.9 16.6 - - + -
288A ALA* 1.3 82.1 - - - +
290A ARG* 1.3 59.9 + - - +
300A PHE* 3.6 26.0 - - + -
301A VAL 3.3 5.8 - - - +
302A ILE* 5.1 4.9 - - + -
405C SER 3.6 6.7 + - - -
406C GLY* 4.0 12.4 + - - -
407C LEU* 4.5 14.4 - - + -
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Residues in contact with ARG 290 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
288A ALA* 4.1 8.5 - - + -
289A VAL* 1.3 78.4 - - - +
291A ASP* 1.3 61.5 + - - +
292A GLU* 3.8 27.8 - - + -
300A PHE* 3.9 5.8 - - - -
301A VAL* 2.9 41.3 + - + +
303A GLU* 5.3 9.9 - - - -
403C MET* 5.2 9.4 - - - -
404C LYS 4.3 19.3 - - - +
405C SER* 5.6 0.4 - - - -
406C GLY 5.7 0.7 - - - +
420C SER* 5.4 13.9 - - - -
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Residues in contact with ASP 291 (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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267A LYS* 3.5 20.6 + - - +
268A THR* 5.0 7.8 + - - -
271A HIS* 4.9 10.9 + - + -
289A VAL 4.1 0.8 + - - -
290A ARG* 1.3 71.8 - - - +
292A GLU* 1.3 59.7 + - - +
293A SER* 3.2 24.5 + - - -
299A ARG 3.8 3.0 - - - +
300A PHE* 3.9 21.9 - - + -
420C SER* 5.9 2.4 - - - -
447C ARG* 3.2 57.8 + - - +
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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