Contacts of the helix formed by residues 276 - 282 (chain D) in PDB entry 5MS0
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 ASN 276 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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106D GLU 4.7 14.4 - - - +
107D LEU* 5.1 8.5 - - + -
108D ALA* 4.3 11.4 - - - +
272D VAL 3.4 14.8 - - - +
273D ILE* 3.4 12.7 + - - +
274D ASN 3.5 0.6 - - - -
275D ARG* 1.3 76.2 - - - +
277D ASN* 1.3 66.1 + - - +
278D ARG 3.1 2.2 + - - -
279D LEU* 3.5 14.3 + - - +
280D LYS* 3.8 7.3 + - - +
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Residues in contact with ASN 277 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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39D LYS 5.5 6.3 - - - +
273D ILE 4.0 6.8 + - - +
274D ASN 5.2 0.4 - - - -
276D ASN* 1.3 77.0 - - + +
278D ARG* 1.3 59.3 + - - +
280D LYS* 3.0 12.1 + - + +
281D ARG* 3.0 31.6 + - + +
59F LYS 4.7 14.1 - - - +
61F GLU* 5.1 5.4 - - + +
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Residues in contact with ARG 278 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
274D ASN 4.6 13.3 + - - +
275D ARG* 4.8 8.3 - - - +
276D ASN 3.1 0.8 - - - +
277D ASN* 1.3 78.8 - - - +
279D LEU* 1.3 60.9 + - - +
281D ARG 5.5 0.2 - - - -
282D LEU* 3.3 31.0 + - + +
283D LEU* 3.3 4.7 - - - +
295D GLU* 5.3 9.2 - - + -
61F GLU* 4.4 22.4 - - + +
62F ARG 4.6 11.7 - - - +
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Residues in contact with LEU 279 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108D ALA* 4.7 12.3 - - + -
109D SER* 5.7 7.2 - - - +
275D ARG 5.1 4.0 + - - +
276D ASN 3.5 9.6 + - - +
277D ASN 3.3 0.4 - - - -
278D ARG* 1.3 77.8 - - - +
280D LYS* 1.3 58.7 + - - +
283D LEU* 3.0 22.3 - - - +
285D LEU 4.3 5.7 - - - +
295D GLU* 4.4 20.7 - - + +
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Residues in contact with LYS 280 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108D ALA* 4.9 11.2 - - + +
276D ASN 3.8 3.4 + - - +
277D ASN* 3.0 21.1 + - + +
279D LEU* 1.3 75.8 - - - +
281D ARG* 1.3 60.9 + - + +
283D LEU 2.9 15.2 - - - +
284D ASP* 3.5 11.8 - - - +
285D LEU 5.0 0.3 - - - +
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Residues in contact with ARG 281 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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277D ASN* 3.0 13.2 + - + +
278D ARG* 4.3 0.7 - - - -
280D LYS* 1.3 82.1 - - + +
282D LEU* 1.3 60.0 + - - +
283D LEU 3.8 3.4 - - - -
284D ASP* 3.8 9.7 - - + +
61F GLU* 6.6 0.4 - - - -
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Residues in contact with LEU 282 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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278D ARG* 3.3 23.3 + - + +
281D ARG* 1.3 79.6 - - - +
283D LEU* 1.4 58.7 + - + +
284D ASP* 3.3 5.4 + - - +
61F GLU* 5.9 4.3 - - + -
62F ARG 5.8 4.5 - - - +
63F LYS* 5.8 8.1 - - + -
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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