Contacts of the helix formed by residues 347 - 352 (chain E) in PDB entry 2OX4
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 LEU 347 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16E GLN* 4.0 7.2 - - + +
17E SER* 4.4 5.6 - - - -
136E GLY 3.5 17.9 - - - +
137E LYS* 3.4 20.9 - - - +
139E ARG* 3.9 39.9 - - + +
343E GLN* 4.4 5.2 - - - +
344E LYS* 2.9 31.3 + - + +
345E THR 4.0 3.1 - - - +
346E LEU* 1.3 79.3 - - - +
348E PRO* 1.3 71.4 - - + +
349E GLU* 3.5 33.7 - - + +
350E TYR* 3.2 11.6 + - + +
351E GLU* 3.3 10.4 + - - +
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Residues in contact with PRO 348 (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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16E GLN* 4.3 7.0 - - - +
137E LYS* 4.0 30.5 - - + +
346E LEU 4.1 3.6 - - - +
347E LEU* 1.3 82.0 - - + +
349E GLU* 1.3 63.4 + - - +
350E TYR 3.1 2.5 - - - -
351E GLU* 3.8 15.4 - - + +
352E GLU* 3.2 28.1 + - - +
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Residues in contact with GLU 349 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14E ARG* 3.1 49.9 + - + +
15E PRO* 3.3 14.7 - - + +
16E GLN* 2.6 38.5 + - - +
17E SER* 2.8 39.0 + - - -
347E LEU* 3.5 20.8 - - + +
348E PRO* 1.3 75.8 - - + +
350E TYR* 1.3 65.1 + - + +
352E GLU* 3.5 10.8 - - - +
353E LEU* 3.6 7.1 - - - +
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Residues in contact with TYR 350 (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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14E ARG* 4.4 5.6 - - + -
17E SER* 3.7 16.2 - - - -
19E GLN* 2.7 40.9 + - + +
21E PRO* 3.6 30.7 - - + +
41E ALA* 3.9 7.8 - - - +
318E GLY* 3.6 31.5 - - - +
319E THR* 3.8 10.5 - - - -
320E GLY 5.4 2.1 + - - -
344E LYS* 3.8 43.8 - - + +
345E THR* 4.6 6.5 - - + -
347E LEU* 3.2 2.7 + - + +
348E PRO 3.1 0.4 - - - -
349E GLU* 1.3 89.7 - - + +
351E GLU* 1.3 65.4 + - - +
352E GLU 3.2 2.0 - - - -
353E LEU* 3.2 27.3 + - + +
354E CYS* 4.4 3.8 + - - +
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Residues in contact with GLU 351 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
137E LYS* 4.9 10.9 + - - -
345E THR 5.1 5.9 + - - +
347E LEU 3.3 11.4 + - - +
348E PRO* 3.5 14.6 + - + +
350E TYR* 1.3 79.0 - - - +
352E GLU* 1.3 60.2 + - - +
353E LEU 3.2 1.6 + - - -
354E CYS* 3.4 18.2 + - - +
356E HIS 6.1 0.2 - - - -
357E ASN* 3.1 45.6 + - + +
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Residues in contact with GLU 352 (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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14E ARG* 2.8 28.6 + - - +
348E PRO 3.2 19.8 + - - +
349E GLU* 3.5 12.6 - - - +
351E GLU* 1.3 75.5 - - - +
353E LEU* 1.3 59.3 + - + +
354E CYS 3.4 0.4 - - - -
378E THR* 2.9 25.9 + - - +
380E LYS* 3.3 43.6 + - - +
384E ILE* 4.3 3.2 - - - +
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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