Contacts of the strand formed by residues 100 - 103 (chain C) in PDB entry 3BSQ
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 MET 100 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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52C LEU* 3.0 20.8 + - - +
53C THR* 2.8 33.9 + - + +
54C ALA 3.3 17.0 - - - +
55C ALA* 3.6 13.9 - - - +
57C CYS* 3.9 13.2 - - + +
58C LYS* 3.8 24.7 - - - -
62C TYR* 3.2 30.1 - - + +
84C SER* 4.0 4.7 - - - -
85C PHE 3.4 21.5 - - - +
86C ARG* 4.1 4.5 - - - -
99C LEU* 1.3 76.8 - - - +
101C LEU* 1.3 73.9 + - - +
102C VAL* 4.0 10.1 - - + -
230C TRP* 4.5 2.5 - - - -
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Residues in contact with LEU 101 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46C VAL* 4.6 6.5 - - + -
50C TRP* 3.9 30.3 - - + -
51C VAL 3.2 14.6 - - - +
52C LEU* 3.8 24.5 - - + +
84C SER* 3.3 4.7 - - - -
85C PHE* 2.8 45.0 + - + +
100C MET* 1.3 76.3 - - - +
102C VAL* 1.3 61.7 + - - +
103C LYS 4.1 0.2 - - - -
230C TRP* 3.8 15.7 - - + -
231C ILE* 3.7 30.3 - - + +
234C THR* 3.7 20.6 - - + -
235C MET* 4.7 8.5 - - + -
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Residues in contact with VAL 102 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33C LEU* 4.6 6.1 - - + -
49C ARG 3.5 0.3 - - - +
50C TRP* 3.3 9.2 - - - -
51C VAL* 2.2 49.8 + - + +
53C THR* 3.8 21.5 - - - +
62C TYR* 4.2 13.7 - - + -
64C VAL* 4.7 11.7 - - + -
81C ALA* 3.8 28.7 - - + -
83C LYS 3.9 6.7 - - - +
84C SER* 4.1 6.1 - - - -
100C MET* 4.0 18.4 - - + -
101C LEU* 1.3 74.3 - - - +
103C LYS* 1.3 63.4 + - - +
104C LEU* 3.6 4.0 + - + +
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Residues in contact with LYS 103 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49C ARG* 3.3 22.1 - - - +
50C TRP* 3.6 33.9 - - + +
81C ALA* 3.1 25.1 - - - +
83C LYS* 3.0 35.3 + - + +
85C PHE* 4.5 2.0 - - + -
101C LEU 4.1 0.2 - - - -
102C VAL* 1.3 70.9 - - - +
104C LEU* 1.3 69.2 + - - +
237C HIS* 3.4 7.1 - - - +
238C HIS* 2.9 62.1 + - - +
239C SO4 4.4 12.5 + - - +
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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