Contacts of the helix formed by residues 267 - 274 (chain B) in PDB entry 2O07
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 THR 267 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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265B PRO 5.1 2.9 - - - +
266B LEU* 1.3 77.5 - - - +
268B GLN* 1.3 59.2 + - - +
269B GLN* 3.5 14.3 + - - +
270B GLN* 2.9 40.0 + - - +
271B VAL* 3.0 26.1 + - - +
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Residues in contact with GLN 268 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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292A GLU* 3.3 23.7 + - - +
295A ARG* 3.7 26.4 + - - +
300A ASP* 5.0 4.2 + - - +
267B THR* 1.3 72.0 - - - +
269B GLN* 1.3 58.5 + - - +
271B VAL* 3.3 15.2 + - - +
272B ALA* 2.9 37.7 + - + +
280B ASN* 5.6 1.9 - - - +
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Residues in contact with GLN 269 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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267B THR* 3.1 12.3 + - - +
268B GLN* 1.3 75.9 - - + +
270B GLN* 1.3 60.6 + - + +
272B ALA* 3.8 5.1 - - - +
273B GLN* 3.0 30.0 + - - +
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Residues in contact with GLN 270 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
115B PRO* 6.2 2.6 - - - +
265B PRO 4.0 3.5 - - - +
266B LEU* 3.4 24.5 - - + +
267B THR* 2.9 47.9 + - - +
269B GLN* 1.3 74.4 - - + +
271B VAL* 1.3 59.0 + - - +
273B GLN* 3.2 4.7 + - - -
274B MET* 2.8 49.2 + - + +
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Residues in contact with VAL 271 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
292A GLU* 3.7 39.5 - - + +
266B LEU* 4.0 18.2 - - + +
267B THR 3.0 19.6 + - - +
268B GLN* 3.3 15.5 + - - +
270B GLN* 1.3 75.8 - - - +
272B ALA* 1.3 61.4 + - - +
274B MET 3.5 1.2 + - - -
275B GLN 3.2 3.1 + - - -
276B LEU* 3.1 47.9 + - + +
279B TYR 4.0 8.5 - - - +
280B ASN* 4.0 21.1 - - + -
281B SER 5.2 0.2 - - - +
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Residues in contact with ALA 272 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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268B GLN* 2.9 25.1 + - + +
269B GLN* 3.8 5.8 - - - +
271B VAL* 1.3 74.9 - - - +
273B GLN* 1.3 60.4 + - - +
275B GLN* 3.0 25.2 + - - +
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Residues in contact with GLN 273 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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269B GLN 3.0 20.5 + - - +
270B GLN* 3.8 4.9 - - - +
272B ALA* 1.3 76.8 - - - +
274B MET* 1.3 60.0 + - + +
275B GLN* 3.1 15.5 + - - +
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Residues in contact with MET 274 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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85B ASN* 3.9 10.5 - - - +
110B GLU* 5.1 0.9 - - - +
113B LYS* 2.8 65.2 + - + +
114B HIS* 3.6 36.6 - - + +
115B PRO* 6.4 0.9 - - - -
266B LEU* 3.9 28.9 - - + -
270B GLN* 2.8 28.7 + - + +
273B GLN* 1.3 76.1 - - + +
275B GLN* 1.3 64.5 + - - +
276B LEU* 3.1 20.5 + - + +
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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