Contacts of the strand formed by residues 1641 - 1645 (chain A) in PDB entry 2OPG
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 LEU1641 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1639A LEU* 3.9 30.3 - - + +
1640A GLY* 1.3 81.8 - - - +
1642A SER* 1.3 61.5 + - - +
1643A ILE* 3.2 37.5 - - + -
1656A ILE* 4.2 19.1 - - + -
1658A GLU 3.2 13.5 - - - +
1659A VAL* 4.6 2.9 - - + -
1660A TYR* 3.7 7.5 - - - -
1665A ALA* 4.4 5.4 - - + -
1671A LEU* 4.2 25.6 - - + -
1677A ILE* 5.2 2.9 - - + -
1706A LEU* 5.1 4.3 - - + -
1719B ARG* 3.5 2.8 - - - +
1720B LEU* 2.8 38.0 + - + +
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Residues in contact with SER1642 (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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1641A LEU* 1.3 75.6 - - - +
1643A ILE* 1.3 61.3 + - - +
1656A ILE* 3.6 6.2 - - - +
1657A HIS* 2.8 53.7 + - - +
1658A GLU* 2.9 12.4 + - - +
1660A TYR* 3.5 23.2 + - - -
1717B SER* 4.8 6.7 - - - -
1718B THR 3.2 15.5 - - - -
1719B ARG* 4.1 2.2 - - - -
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Residues in contact with ILE1643 (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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1641A LEU* 3.2 25.1 - - + -
1642A SER* 1.3 77.8 - - - +
1644A VAL* 1.3 69.1 + - - +
1654A ILE* 3.5 27.8 - - + -
1655A ILE 3.4 7.6 - - - +
1656A ILE* 4.3 4.9 - - + -
1677A ILE* 3.8 24.0 - - + -
1690A HIS* 3.4 11.3 - - + +
1694A ILE* 4.3 13.0 - - + -
1697A LEU* 4.5 1.1 - - + -
1717B SER* 3.4 5.5 + - - -
1718B THR 2.8 32.5 + - - +
1720B LEU* 3.3 29.2 - - + -
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Residues in contact with VAL1644 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1643A ILE* 1.3 81.7 - - - +
1645A GLY* 1.3 63.2 + - - +
1651A LEU* 3.8 21.3 - - + -
1654A ILE* 3.7 2.8 - - - -
1655A ILE* 2.9 40.3 + - + +
1657A HIS* 3.8 11.4 - - + -
1690A HIS* 4.0 3.1 - - - -
1715A TYR* 3.9 17.3 - - - +
1657B HIS* 3.7 30.3 - - + +
1715B TYR* 3.9 12.6 - - + +
1716B LYS 3.8 16.2 - - - +
1717B SER* 4.0 2.2 - - - +
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Residues in contact with GLY1645 (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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1644A VAL* 1.3 77.5 - - - +
1646A GLY* 1.3 57.7 + - - -
1649A THR* 3.3 25.8 - - - +
1651A LEU* 3.9 10.7 - - - +
1653A ALA 3.3 8.3 - - - -
1654A ILE* 3.9 2.8 - - - +
1690A HIS* 2.8 32.1 + - - +
1716B LYS 4.3 3.4 + - - -
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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