Contacts of the helix formed by residues 2285 - 2290 (chain B) in PDB entry 6X34
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 ASN2285 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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2245B ARG* 4.8 3.3 - - - +
2284B ASN* 1.3 74.9 + - - +
2286B GLU* 1.3 69.1 + - - +
2287B LEU 3.5 0.7 - - - -
2288B ALA* 3.8 4.3 - - - +
2289B LEU* 3.5 20.5 + - - +
2342B VAL* 3.5 29.1 - - + +
2347B VAL* 5.1 4.7 - - - +
3848B ALA* 5.6 6.1 + - - +
3851B LEU* 3.5 30.7 - - + +
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Residues in contact with GLU2286 (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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2245B ARG* 3.4 25.7 - - - +
2249B ARG* 4.5 11.7 - - - +
2284B ASN* 2.9 3.2 + - - +
2285B ASN* 1.3 82.9 - - - +
2287B LEU* 1.3 61.9 + - - +
2288B ALA 3.4 0.3 + - - -
2289B LEU* 3.4 10.8 + - - +
2290B ALA* 3.4 13.3 + - - +
3848B ALA* 5.5 7.8 - - + +
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Residues in contact with LEU2287 (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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2248B GLN* 3.9 17.7 - - + +
2249B ARG* 5.5 2.0 - - - +
2252B PHE* 3.8 48.0 - - + -
2280B SER 3.6 26.0 - - - +
2281B VAL* 3.8 27.1 - - + +
2284B ASN* 3.0 31.6 + - + +
2286B GLU* 1.3 74.5 - - - +
2288B ALA* 1.3 64.9 + - - +
2289B LEU 3.3 0.2 - - - -
2290B ALA* 3.6 4.9 - - - +
2291B LEU* 3.0 29.4 + - + +
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Residues in contact with ALA2288 (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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2281B VAL* 5.2 5.8 - - + +
2284B ASN 3.7 19.1 - - - +
2285B ASN* 3.6 8.4 + - - +
2286B GLU 3.2 1.0 - - - -
2287B LEU* 1.3 88.0 - - + +
2289B LEU* 1.3 60.8 + - - +
2291B LEU* 3.5 22.0 - - + +
2339B ALA 5.3 8.1 - - - +
2342B VAL* 4.9 14.1 - - + -
2347B VAL* 5.1 9.8 - - + +
2350B ASN* 5.1 10.2 - - - +
3844B ARG* 4.8 3.5 + - - -
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Residues in contact with LEU2289 (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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2285B ASN* 3.5 12.0 + - - +
2286B GLU 3.4 8.4 + - - +
2287B LEU 3.3 0.4 - - - -
2288B ALA* 1.3 79.2 - - - +
2290B ALA* 1.3 58.1 + - - +
2291B LEU 3.2 3.5 + - - -
2347B VAL* 5.5 9.4 - - + +
2349B GLU* 5.9 2.0 - - - +
3844B ARG* 3.0 49.5 + - + +
3847B LYS* 6.1 2.0 - - + -
3848B ALA* 4.4 22.0 - - + +
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Residues in contact with ALA2290 (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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2252B PHE* 5.0 9.0 - - + -
2286B GLU 3.4 13.7 + - - +
2287B LEU* 3.5 7.2 + - - +
2288B ALA 3.4 0.2 - - - -
2289B LEU* 1.3 76.3 - - - +
2291B LEU* 1.3 62.6 + - - +
2292B GLN* 3.4 6.6 + - - +
3844B ARG* 5.2 4.3 - - - +
3868B LYS* 3.1 36.9 + - + +
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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