Contacts of the strand formed by residues 49 - 52 (chain H) in PDB entry 2X86
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 ASP 49 (chain H).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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94G TYR* 2.4 30.9 + - - -
98G LYS* 2.9 29.1 + - - +
146G LEU* 4.7 1.8 - - - -
150G TYR* 4.5 9.8 - - + -
1H MET* 6.1 0.9 - - + -
27H ILE 3.3 3.2 + - - +
28H LEU* 3.6 20.3 - - + +
29H VAL 3.0 23.0 + - - -
47H ILE* 3.6 12.2 - - - +
48H ALA* 1.3 84.9 - - + +
50H TYR* 1.3 72.1 + - - +
51H MET* 4.3 7.6 - - - +
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Residues in contact with TYR 50 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87G LYS* 6.5 0.2 - - - -
90G MET* 4.2 33.7 - - + -
94G TYR* 3.7 14.2 + + + -
95G GLN* 4.1 9.2 - - - +
98G LYS* 4.1 1.0 + - - -
142G TYR* 5.7 1.3 - + - +
146G LEU* 3.6 22.7 - - + -
8H ALA* 5.0 1.1 - - + -
28H LEU* 4.1 2.0 - - - -
29H VAL* 3.4 25.8 - - + -
31H ASP* 3.2 42.3 + - + +
32H ASN 3.5 0.2 + - - -
33H LEU* 3.3 36.2 + - + +
42H LEU* 4.7 9.4 - - + -
47H ILE* 4.8 2.0 - - + -
49H ASP* 1.3 90.3 + - - +
51H MET* 1.3 81.5 + - - +
52H ASP* 3.9 7.4 + - + +
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Residues in contact with MET 51 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
95G GLN* 5.4 5.8 - - - +
98G LYS* 5.2 4.5 - - - +
28H LEU* 4.0 23.6 - - + -
29H VAL 2.9 6.6 + - - +
30H VAL* 3.2 10.4 - - + -
31H ASP 3.1 23.2 + - - +
49H ASP* 4.3 11.0 - - - +
50H TYR* 1.3 81.9 - - - +
52H ASP* 1.3 73.8 + - - +
55H ASP* 4.0 8.1 - - + +
56H PHE* 4.0 32.5 - - - +
59H GLN* 4.1 25.8 - - - +
66H PHE* 4.3 14.8 - - + -
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Residues in contact with ASP 52 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87G LYS* 3.8 37.2 + - + +
91G ASP* 5.2 5.4 - - - +
30H VAL* 4.2 0.4 - - - -
31H ASP 3.2 11.2 - - - +
32H ASN* 3.8 14.0 - - - +
33H LEU 4.6 1.0 + - - -
50H TYR* 3.9 10.1 + - + -
51H MET* 1.3 77.2 - - - +
53H LYS* 1.3 69.7 + - - +
54H GLU* 2.9 33.8 + - - +
55H ASP* 3.1 21.3 + - - +
56H PHE* 3.0 20.3 + - - +
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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
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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