Contacts of the strand formed by residues 272 - 276 (chain A) in PDB entry 2ABJ
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 GLU 272 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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264A TYR* 2.3 42.9 + - + +
265A TRP 3.5 5.2 - - - +
266A ILE* 3.8 20.2 - - + +
270A GLY 4.0 1.8 + - - -
271A GLU* 1.3 70.9 - - - +
273A GLU* 1.3 59.7 + - - +
301A GLU 4.2 8.8 - - - +
302A PHE* 3.4 20.8 - - + +
303A LYS* 3.0 25.3 + - - +
324A ARG* 4.8 6.0 + - - -
358A LYS* 5.6 0.7 + - - -
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Residues in contact with GLU 273 (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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264A TYR* 3.4 8.5 - - - -
265A TRP* 2.7 71.7 + - + +
267A ASN* 3.2 28.0 + - - +
271A GLU 3.8 8.7 - - - +
272A GLU* 1.3 77.6 - - - +
274A LEU* 1.3 69.1 + - - +
275A ALA* 3.8 6.1 - - - +
302A PHE* 4.7 0.4 - - - -
303A LYS* 3.3 23.5 + - + +
305A SER* 2.5 33.2 + - - +
307A ARG* 3.7 12.2 + - - -
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Residues in contact with LEU 274 (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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262A PHE* 3.9 27.4 - - + -
263A LEU 4.0 10.5 - - - +
264A TYR* 4.2 6.7 - - + -
273A GLU* 1.3 72.3 - - - +
275A ALA* 1.3 59.9 + - - +
292A ILE* 4.0 22.4 - - + +
293A LEU* 5.0 1.8 - - + +
296A ALA* 3.8 25.8 - - + -
299A TRP* 6.4 0.2 - - + -
302A PHE* 3.7 21.4 - - + -
303A LYS 2.7 10.7 + - - +
304A VAL* 3.4 11.5 - - + +
305A SER 2.9 25.5 + - - +
327A PHE* 4.0 11.4 - - + -
359A LEU* 3.8 24.0 - - + -
363A ILE* 5.2 0.9 - - + -
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Residues in contact with ALA 275 (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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262A PHE* 3.5 4.1 - - - -
263A LEU* 2.8 42.0 + - + +
265A TRP* 4.1 4.7 - - - +
273A GLU* 3.8 20.1 - - - +
274A LEU* 1.3 75.7 - - - +
276A THR* 1.3 63.6 + - - +
305A SER 3.3 8.7 - - - +
307A ARG* 4.2 4.7 - - - -
309A LEU* 3.8 29.5 - - + +
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Residues in contact with THR 276 (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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260A ASN* 5.0 0.2 - - - +
261A LEU 2.5 24.3 + - - -
262A PHE* 3.7 19.7 - - + -
275A ALA* 1.3 75.7 - - - +
277A PRO* 1.4 68.9 - - - +
289A ARG* 3.9 29.2 + - - +
293A LEU* 3.9 28.5 - - + -
305A SER 3.0 6.2 + - - +
306A GLU* 3.2 7.6 - - + -
307A ARG 2.8 25.6 + - - -
309A LEU* 4.2 1.6 - - - -
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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