Contacts of the strand formed by residues 48 - 53 (chain E) in PDB entry 1YKN
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 48 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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40E ALA* 3.9 18.9 + - + +
41E LYS 3.3 27.1 - - - -
42E PRO* 3.5 19.4 + - + +
44E ALA* 2.7 25.6 + - + -
46E GLY 3.4 13.5 - - - -
47E GLU* 1.4 75.0 - - - +
49E ILE* 1.3 62.5 + - - +
108E THR 3.4 6.7 + - - +
109E VAL* 4.0 8.1 - - + +
180E LYS* 3.8 29.7 + - - +
181E THR* 4.3 6.2 + - - -
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Residues in contact with ILE 49 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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47E GLU* 3.8 14.1 - - + +
48E HIS* 1.3 80.4 - - - +
50E LEU* 1.3 63.3 + - - +
51E LEU* 3.7 26.9 - - + -
106E LEU 4.2 0.3 - - - +
107E HIS* 3.9 2.3 - - - -
108E THR* 2.7 51.5 + - + +
109E VAL 4.0 6.1 - - - +
110E LYS* 4.1 17.7 - - + +
145E PHE* 3.8 22.9 - - + -
180E LYS* 4.3 8.0 + - - +
181E THR* 3.3 17.3 - - + +
183E TYR* 3.8 21.1 - - + -
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Residues in contact with LEU 50 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49E ILE* 1.3 74.7 - - - +
51E LEU* 1.4 68.6 + - - +
52E LEU* 4.3 10.5 - - + -
105E THR* 4.3 13.9 - - + -
106E LEU 3.5 11.9 - - - +
107E HIS* 3.7 27.8 - - + +
177E VAL* 4.0 34.1 - - + +
180E LYS* 4.4 16.3 - - + +
181E THR 2.8 13.3 + - - +
182E ALA* 2.8 32.0 - - + +
183E TYR 2.8 11.1 + - - -
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Residues in contact with LEU 51 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49E ILE* 3.7 25.4 - - + -
50E LEU* 1.4 74.0 - - - +
52E LEU* 1.3 62.9 + - - +
104E TRP* 3.7 14.1 - - + -
105E THR* 3.2 8.5 - - - -
106E LEU* 2.9 54.1 + - + +
108E THR* 4.1 10.8 - - + -
126E ILE* 3.5 28.0 - - + -
143E LEU* 4.2 18.8 - - + -
145E PHE* 4.2 8.1 - - + -
183E TYR* 3.4 24.7 - - + +
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Residues in contact with LEU 52 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50E LEU* 4.3 10.5 - - + -
51E LEU* 1.3 79.9 - - - +
53E GLY* 1.3 59.7 + - - +
103E GLU* 3.8 15.5 - - + +
104E TRP* 3.3 21.5 - - - +
105E THR* 4.2 10.3 - - + -
175E CYS* 5.0 4.5 - - - -
177E VAL* 4.5 11.4 - - + -
182E ALA* 4.1 21.5 - - + -
183E TYR 2.9 18.8 + - - +
184E ARG* 3.0 43.7 - - + +
185E PHE* 2.9 25.8 + - - +
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Residues in contact with GLY 53 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52E LEU* 1.3 79.3 - - - +
54E GLN* 1.3 66.1 + - - -
103E GLU* 3.3 7.0 - - - +
104E TRP* 2.9 42.3 + - - -
184E ARG* 4.4 4.0 - - - -
185E PHE 3.4 15.3 - - - -
186E ASP* 3.6 6.5 - - - -
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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