Contacts of the helix formed by residues 1566 - 1577 (chain A) in PDB entry 6AH0
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 ILE1566 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1304A ASN* 4.7 13.7 - - - +
1562A MET 6.1 0.2 - - - -
1563A HIS 4.6 4.2 + - - -
1564A GLY 4.0 1.8 + - - -
1565A LYS* 1.3 73.1 - - - +
1567A PRO* 1.4 69.1 - - - +
1568A THR 3.3 2.0 - - - -
1569A LEU* 3.9 8.1 - - - +
1570A LYS* 3.3 18.1 + - - +
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Residues in contact with PRO1567 (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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1304A ASN* 4.7 8.3 - - - -
1565A LYS 3.1 8.0 - - - +
1566A ILE* 1.4 72.9 - - - +
1568A THR* 1.3 62.3 + - - +
1570A LYS* 4.4 0.5 - - - -
1571A ILE* 3.5 14.2 + - - -
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Residues in contact with THR1568 (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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1532A ARG* 6.3 4.9 - - - +
1566A ILE* 4.5 0.2 - - - +
1567A PRO* 1.3 75.0 - - - +
1569A LEU* 1.3 67.0 + - - +
1571A ILE* 3.1 2.6 + - - +
1572A SER* 3.0 20.1 + - - -
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Residues in contact with LEU1569 (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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1566A ILE* 3.5 10.3 + - - +
1567A PRO 3.5 0.8 - - - -
1568A THR* 1.3 76.4 - - - +
1570A LYS* 1.3 63.3 + - - +
1572A SER* 3.2 1.3 + - - +
1573A LEU* 2.9 20.8 + - - -
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Residues in contact with LYS1570 (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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1566A ILE* 3.3 14.5 + - - +
1567A PRO 4.4 0.4 - - - -
1568A THR 3.2 0.2 - - - -
1569A LEU* 1.3 74.6 - - - +
1571A ILE* 1.3 55.6 + - - +
1573A LEU* 3.2 3.4 + - - +
1574A ILE* 2.9 26.0 + - - -
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Residues in contact with ILE1571 (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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1567A PRO 3.5 11.4 + - - -
1568A THR* 3.1 6.5 + - - +
1570A LYS* 1.3 75.0 - - - +
1572A SER* 1.3 62.0 + - - +
1574A ILE* 3.2 2.9 + - - +
1575A GLN* 3.1 18.7 + - - -
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Residues in contact with SER1572 (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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1568A THR 3.0 13.2 + - - -
1569A LEU 3.7 2.7 - - - -
1571A ILE* 1.3 75.6 - - - +
1573A LEU* 1.3 63.8 + - - +
1575A GLN* 3.3 3.2 + - - +
1576A ILE* 3.1 17.7 + - - -
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Residues in contact with LEU1573 (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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1569A LEU 2.9 14.6 + - - -
1570A LYS* 3.7 4.0 - - - +
1572A SER* 1.3 75.7 - - - +
1574A ILE* 1.3 62.6 + - - +
1576A ILE* 3.2 3.5 + - - +
1577A PHE* 3.0 20.3 + - - -
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Residues in contact with ILE1574 (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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1570A LYS 2.9 13.7 + - - -
1571A ILE* 3.2 4.6 + - - +
1573A LEU* 1.3 76.8 - - - +
1575A GLN* 1.3 61.3 + - - +
1577A PHE 3.2 24.5 - - - +
1578A ARG* 3.4 4.7 + - - -
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Residues in contact with GLN1575 (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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1571A ILE 3.1 13.1 + - - -
1572A SER 3.3 3.6 + - - -
1574A ILE* 1.3 77.2 - - - +
1576A ILE* 1.3 62.9 + - - +
1577A PHE 3.4 0.2 + - - -
1578A ARG* 3.7 8.6 + - - +
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Residues in contact with ILE1576 (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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1572A SER 3.1 13.4 + - - -
1573A LEU* 3.2 5.3 + - - +
1575A GLN* 1.3 77.4 - - - +
1577A PHE* 1.3 56.9 + - - +
1578A ARG 3.6 2.1 + - - -
1581A LEU* 5.3 0.5 - - - -
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Residues in contact with PHE1577 (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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1573A LEU 3.0 12.9 + - - -
1574A ILE* 3.2 9.4 - - - +
1576A ILE* 1.3 76.9 - - - +
1578A ARG* 1.3 54.6 + - - +
1581A LEU* 3.3 25.0 + - - +
1582A TRP* 4.0 5.4 + - - +
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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