Contacts of the helix formed by residues 766 - 771 (chain B) in PDB entry 2HRC
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 PRO 766 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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765B LEU* 1.3 87.1 - - + +
767B MET* 1.3 65.0 + - - +
768B SER* 3.8 17.3 - - - +
769B VAL* 2.9 18.7 + - + +
770B VAL* 3.1 8.7 + - - +
808B MET* 5.8 0.7 - - + -
809B PRO 3.7 9.4 - - - +
810B TRP* 3.8 15.7 - - + -
1603B CHD 3.5 36.1 - - + -
1605B CHD 3.7 35.7 - - + +
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Residues in contact with MET 767 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
267A MET* 3.5 47.3 - - + -
310A TRP 4.4 0.9 - - - +
311A LEU* 4.1 13.5 - - + -
312A GLY 4.3 1.8 - - - +
765B LEU 3.5 0.8 + - - -
766B PRO* 1.3 71.9 - - - +
768B SER* 1.3 55.9 + - - +
770B VAL* 4.2 9.6 - - + -
771B ASN* 2.7 68.5 + - - +
809B PRO* 2.8 34.4 + - + +
810B TRP 3.7 11.4 - - - +
811B LEU* 3.7 23.6 - - - -
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Residues in contact with SER 768 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
766B PRO* 3.8 14.1 - - - +
767B MET* 1.3 78.3 - - - +
769B VAL* 1.3 67.1 + - - +
771B ASN* 3.9 5.1 + - - +
772B ARG* 3.6 21.4 + - - +
808B MET* 6.1 1.7 - - - +
809B PRO 4.7 0.8 + - - -
1603B CHD 4.4 14.2 + - - -
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Residues in contact with VAL 769 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
697B SER* 4.4 5.4 - - - +
765B LEU* 4.1 12.3 - - + -
766B PRO* 2.9 19.3 + - + +
768B SER* 1.3 83.5 - - - +
770B VAL* 1.3 68.2 + - - +
771B ASN 3.2 0.2 - - - -
772B ARG* 2.9 49.9 + - - +
774B ASP* 3.4 34.0 + - + +
1605B CHD 3.8 27.4 - - - +
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Residues in contact with VAL 770 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
311A LEU* 4.3 8.7 - - + -
312A GLY 3.7 17.0 - - - +
313A PRO* 3.3 10.2 - - + +
707A GOL 4.6 4.3 - - - +
765B LEU* 3.9 24.7 - - + +
766B PRO 3.1 12.8 + - - +
767B MET* 3.8 28.9 - - + +
769B VAL* 1.3 75.8 - - - +
771B ASN* 1.3 58.3 + - - +
773B GLY* 3.1 19.2 + - - -
774B ASP* 3.7 11.4 + - - +
777B PRO* 4.3 22.9 - - + -
811B LEU* 4.2 9.4 - - + -
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Residues in contact with ASN 771 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
310A TRP 4.5 6.4 + - - -
312A GLY* 2.9 33.2 + - - -
313A PRO* 3.3 23.9 - - + +
317A GLU* 5.7 0.5 - - - +
767B MET* 2.7 47.2 + - - +
768B SER* 4.2 5.8 - - - +
770B VAL* 1.3 71.1 - - - +
772B ARG* 1.3 56.2 + - - +
773B GLY 3.3 0.2 - - - -
905B LEU* 3.5 12.3 - - - +
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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
------------------------------------------------------------
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