Contacts of the strand formed by residues 65 - 70 (chain I) in PDB entry 1CSE
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 HIS 65 (chain I).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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14I VAL* 3.7 5.7 - - - +
39I GLU* 2.8 44.5 - - + +
55I PHE* 3.8 28.7 + - + +
63I VAL* 3.5 13.5 - - - +
64I ASN* 1.3 102.0 + - - +
66I VAL* 1.3 66.6 + - - +
67I PRO* 3.2 10.6 - - - +
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Residues in contact with VAL 66 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9I SER* 3.0 28.7 - - - +
11I PRO* 3.6 30.1 - - + -
14I VAL* 3.6 16.8 - - + -
65I HIS* 1.3 72.2 - - - +
67I PRO* 1.3 71.5 - - - +
68I HIS* 3.6 18.2 + - + -
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Residues in contact with PRO 67 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9I SER* 3.5 3.8 + - - -
10I PHE* 3.0 56.0 + - + +
13I VAL* 3.8 24.5 - - + -
14I VAL* 4.3 5.2 - - + -
25I PHE* 4.4 2.5 - - + -
52I VAL* 4.1 7.9 - - + -
53I ARG 3.9 19.1 - - - +
54I VAL* 4.0 24.9 - - + -
55I PHE* 5.4 0.7 - - + +
65I HIS 3.2 10.1 - - - +
66I VAL* 1.3 85.7 - - - +
68I HIS* 1.3 58.7 + - - +
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Residues in contact with HIS 68 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155E ASN 6.0 2.5 - - - -
156E SER* 5.7 8.2 - - - -
8I LYS 3.4 11.4 - - - +
9I SER* 4.3 8.5 - - - +
10I PHE* 4.5 0.4 - - - -
52I VAL* 3.8 18.9 - - - +
53I ARG 4.1 7.5 + - - +
55I PHE* 6.2 3.7 - + - -
66I VAL* 4.2 15.2 + - + -
67I PRO* 1.3 74.1 - - - +
69I VAL* 1.3 72.1 + - - +
70I GLY* 3.6 1.7 + - - +
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Residues in contact with VAL 69 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8I LYS* 2.9 38.0 + - + +
10I PHE* 4.1 10.3 - - + -
32I TYR* 3.8 36.6 - - + +
47I LEU* 5.4 1.4 - - - +
49I TYR* 3.7 36.1 - - + +
51I ARG 3.2 5.4 - - - -
52I VAL* 4.2 4.7 - - + -
68I HIS* 1.3 83.0 + - - +
70I GLY* 1.3 62.6 + - - +
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Residues in contact with GLY 70 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46I ASP 3.4 2.4 - - - +
47I LEU* 3.4 20.4 - - - +
48I ARG 2.9 33.7 + - - -
49I TYR* 5.3 1.8 - - - -
51I ARG* 2.6 66.1 + - - +
53I ARG* 4.7 9.4 + - - +
68I HIS 3.6 1.6 + - - +
69I VAL* 1.3 76.8 - - - +
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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