Contacts of the helix formed by residues 56 - 61 (chain B) in PDB entry 5DTM
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 GLU 56 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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54B ALA 3.6 5.1 + - - +
55B MET* 1.3 74.1 - - - +
57B ASN* 1.3 63.7 + - - +
58B TYR* 3.3 35.4 + - + -
59B VAL* 3.6 22.3 + - - +
77B LYS* 3.0 40.0 + - + +
80B ARG* 6.0 0.9 - - - -
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Residues in contact with ASN 57 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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45B CYS* 5.7 1.6 - - - +
52B LYS* 3.1 37.1 + - - +
53B LEU 5.5 0.6 + - - -
55B MET* 3.0 17.5 + - - +
56B GLU* 1.3 66.4 - - - +
58B TYR* 1.4 52.3 + - - +
59B VAL 3.0 6.1 - - - -
60B LEU* 2.8 45.5 + - + +
61B ILE* 4.0 9.6 + - + +
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Residues in contact with TYR 58 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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56B GLU* 3.3 42.4 + - + -
57B ASN* 1.4 75.0 - - - +
59B VAL* 1.3 69.3 + - + +
60B LEU 3.1 0.4 - - - -
61B ILE* 3.1 36.8 + - + +
62B ASP* 3.6 8.7 + - - +
73B ARG* 5.7 4.9 - - - -
77B LYS* 3.9 18.3 + - - -
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Residues in contact with VAL 59 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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55B MET* 3.6 30.5 - - + -
56B GLU 3.6 10.3 + - - +
57B ASN 3.0 0.8 + - - -
58B TYR* 1.3 94.7 - - + +
60B LEU* 1.3 60.0 + - - +
61B ILE 3.2 1.0 + - - -
62B ASP 4.0 8.2 - - - +
63B TYR* 3.8 21.9 - - + +
70B SER 5.4 0.9 - - - +
73B ARG* 4.1 22.0 - - + +
74B LEU* 3.7 29.1 - - + +
77B LYS* 4.0 24.9 - - + -
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Residues in contact with LEU 60 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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313A TYR* 5.5 0.2 + - - -
38B ILE* 4.2 16.4 - - + +
41B ILE* 4.1 24.0 - - + -
42B ARG* 2.9 63.6 + - + +
45B CYS* 5.0 7.4 - - + -
55B MET* 4.2 15.9 - - + -
57B ASN* 2.8 22.7 + - + +
59B VAL* 1.3 76.4 - - - +
61B ILE* 1.3 60.0 + - + +
63B TYR* 3.3 11.5 - - - -
74B LEU* 3.5 24.9 - - + -
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Residues in contact with ILE 61 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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243A PHE* 3.4 23.9 - - - -
269A SER 5.2 1.9 - - - +
270A LYS* 4.2 7.4 - - + +
271A PRO* 3.5 34.5 - - + -
275A LEU* 3.9 26.7 - - + -
295A GLU* 4.7 5.6 - - - +
313A TYR* 3.3 26.2 - - + +
57B ASN* 4.2 8.5 - - + +
58B TYR* 3.1 24.8 + - + +
60B LEU* 1.3 83.8 - - + +
62B ASP* 1.3 65.1 + - + +
63B TYR* 3.9 1.7 - - - -
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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