Contacts of the helix formed by residues 49 - 55 (chain F) in PDB entry 5HHM
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 ALA 49 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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31F THR* 4.7 6.3 - - + -
32F GLN 3.8 13.0 - - - +
33F PHE* 3.7 9.1 + - + -
47F PRO 3.7 0.2 - - - -
48F ARG* 1.3 81.9 + - - +
50F PRO* 1.4 74.2 - - + +
51F TRP* 3.3 33.7 - - + +
52F ILE* 3.3 16.8 + - + +
53F GLU* 3.8 11.7 + - - +
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Residues in contact with PRO 50 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49F ALA* 1.4 85.4 - - + +
51F TRP* 1.3 67.8 + - + +
53F GLU* 3.1 33.1 + - - +
54F GLN* 4.0 2.6 + - - +
178F THR* 5.4 10.8 - - + -
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Residues in contact with TRP 51 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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28F VAL* 3.8 7.9 - - + -
31F THR* 4.7 5.5 - - + +
33F PHE* 3.4 37.5 - + + -
49F ALA* 3.3 20.6 - - + +
50F PRO* 1.3 85.4 - - + +
52F ILE* 1.4 78.8 + - + +
54F GLN* 3.1 34.6 - - - +
171F TYR* 3.6 52.3 - + + -
174F ASN* 4.1 11.9 + - + +
175F GLY* 3.5 24.2 - - - +
178F THR* 3.4 22.6 + - - +
179F LEU* 3.7 30.2 - - + +
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Residues in contact with ILE 52 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33F PHE* 3.2 39.7 - - + +
34F VAL* 4.6 0.4 - - + -
47F PRO* 3.7 15.3 - - + -
49F ALA 3.3 16.4 - - - +
51F TRP* 1.4 93.5 - - + +
53F GLU* 1.3 62.7 + - - +
54F GLN 3.1 2.5 - - - -
55F GLU* 3.2 27.8 + - + +
59F TYR* 3.5 27.1 - - + +
60F TRP* 3.3 18.9 - - + -
171F TYR* 3.5 25.6 - - + -
174F ASN* 5.8 0.7 - - - +
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Residues in contact with GLU 53 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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47F PRO* 3.8 28.6 - - + +
48F ARG 5.6 0.2 - - - -
49F ALA 3.8 12.2 + - - +
50F PRO* 3.1 25.1 + - - +
52F ILE* 1.3 72.3 - - - +
54F GLN* 1.3 55.1 + - - +
55F GLU 3.1 17.7 + - - +
60F TRP* 4.7 6.3 + - - +
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Residues in contact with GLN 54 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50F PRO 4.0 2.5 + - - +
51F TRP* 3.1 27.8 + - - +
52F ILE 3.1 1.4 - - - -
53F GLU* 1.3 76.0 - - - +
55F GLU* 1.4 57.8 + - - +
56F GLY 4.1 0.7 + - - -
170F ARG* 5.8 0.7 + - - -
174F ASN* 3.6 47.9 + - - +
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Residues in contact with GLU 55 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52F ILE* 3.2 27.0 + - + +
53F GLU 3.1 7.4 - - - +
54F GLN* 1.4 78.8 - - - +
56F GLY* 1.3 62.4 + - - +
59F TYR* 3.6 50.8 - - + +
60F TRP* 3.2 16.6 + - - +
167F TRP* 4.7 0.5 - - - -
170F ARG* 2.8 47.4 + - - +
171F TYR* 4.6 6.9 - - - -
174F ASN* 3.6 14.2 + - - +
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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