Contacts of the strand formed by residues 26 - 31 (chain D) in PDB entry 4UX9
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 TYR 26 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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11D TYR* 2.7 36.1 + - - -
22D VAL* 4.1 6.1 - - + -
23D LEU* 3.0 24.9 + - + +
24D LYS 3.7 0.9 - - - +
25D ARG* 1.3 97.3 + - + +
27D GLN* 1.3 53.1 + - - +
29D LEU* 3.6 3.2 - - + +
43D ALA* 4.2 3.6 - - + -
44D TYR 3.6 2.7 - - - -
45D ASP* 3.3 37.5 + - + -
52D VAL* 4.0 11.4 - - + -
54D ILE* 3.7 21.3 - - + -
90D ASN* 2.7 29.3 + - - +
92D PHE* 3.4 30.5 - + - -
107D VAL* 3.5 25.2 - - + +
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Residues in contact with GLN 27 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11D TYR* 3.7 4.7 - - + -
24D LYS* 3.7 30.5 + - - +
25D ARG* 3.5 8.5 - - - +
26D TYR* 1.3 78.2 - - - +
28D ASN* 1.4 71.3 + - + +
29D LEU* 3.4 2.8 + - - -
43D ALA* 3.5 1.9 - - - -
44D TYR* 2.9 48.8 + - + +
46D ALA* 3.8 27.2 - - - +
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Residues in contact with ASN 28 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11D TYR* 4.2 3.8 + - - -
27D GLN* 1.4 78.2 - - + +
29D LEU* 1.3 64.5 + - - +
30D LYS* 3.4 30.5 + - - +
42D ALA 3.6 4.7 - - - +
43D ALA* 4.4 1.0 - - - -
44D TYR* 4.9 4.4 + - + +
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Residues in contact with LEU 29 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11D TYR* 3.4 25.2 + - - +
13D VAL* 4.1 30.0 - - + +
15D ILE* 4.6 6.1 - - + +
20D PHE* 3.6 31.9 - - + -
22D VAL* 3.9 19.7 - - + -
26D TYR* 3.6 13.9 - - + +
28D ASN* 1.3 75.1 - - - +
30D LYS* 1.3 63.4 + - - +
31D PRO* 4.3 4.7 - - - +
41D CYS* 4.0 17.3 - - + -
42D ALA 3.3 3.8 - - - -
43D ALA* 3.8 22.9 - - + -
54D ILE* 4.6 3.6 - - + -
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Residues in contact with LYS 30 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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28D ASN* 3.8 29.8 - - - +
29D LEU* 1.3 78.3 - - - +
31D PRO* 1.4 72.4 - - + +
32D ILE* 3.5 4.2 + - + +
41D CYS* 4.1 3.1 - - - -
42D ALA* 2.8 41.8 + - + +
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Residues in contact with PRO 31 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15D ILE* 3.8 42.6 - - + -
16D GLY 5.6 0.7 - - - +
29D LEU 4.3 1.3 - - - +
30D LYS* 1.4 87.6 - - + +
32D ILE* 1.3 63.5 + - - +
39D ILE* 6.2 0.9 - - + -
40D VAL 3.7 9.0 - - - +
41D CYS* 4.0 4.0 - - - -
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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