Contacts of the helix formed by residues 78 - 87 (chain Q) in PDB entry 2HM2
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 MET 78 (chain Q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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11Q VAL* 6.3 1.8 - - + -
14Q ASN* 5.8 4.9 - - + +
15Q LEU* 4.3 13.5 - - + -
19Q GLU* 4.1 27.1 - - - +
73Q LEU* 3.1 25.2 + - + +
74Q ARG* 3.7 6.3 + - - -
76Q MET* 3.3 20.6 - - + +
77Q ARG* 1.3 79.0 - - - +
79Q LEU* 1.3 59.5 + - - +
81Q GLU* 2.6 55.8 - - + +
82Q ALA* 3.3 19.8 + - - +
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Residues in contact with LEU 79 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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74Q ARG* 4.2 39.7 + - + +
77Q ARG* 3.6 6.7 + - - -
78Q MET* 1.3 76.0 - - - +
80Q GLU* 1.3 70.0 + - + +
82Q ALA* 4.0 2.4 - - - +
83Q ALA* 3.2 19.9 + - - +
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Residues in contact with GLU 80 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
79Q LEU* 1.3 79.0 - - + +
81Q GLU* 1.3 75.0 + - + +
83Q ALA* 2.9 23.2 - - - +
84Q ARG* 3.4 9.7 + - - +
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Residues in contact with GLU 81 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11Q VAL* 5.2 15.4 - - + +
73Q LEU* 5.3 3.1 - - + -
77Q ARG 4.6 1.0 - - - +
78Q MET* 2.6 73.7 - - + +
79Q LEU 3.2 1.0 + - - -
80Q GLU* 1.3 74.4 + - + +
82Q ALA* 1.3 53.7 + - - +
83Q ALA 2.9 4.0 - - - -
84Q ARG* 2.7 39.2 + - - +
85Q LEU* 3.4 3.5 + - - +
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Residues in contact with ALA 82 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70Q VAL* 3.5 27.6 - - + +
73Q LEU* 4.0 14.2 - - + +
74Q ARG* 3.5 35.2 - - + +
78Q MET 3.3 10.6 + - - +
79Q LEU 4.0 0.4 - - - +
81Q GLU* 1.3 78.5 - - - +
83Q ALA* 1.3 61.6 + - - +
85Q LEU* 3.0 25.8 + - - +
86Q GLN* 3.2 6.6 + - - +
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Residues in contact with ALA 83 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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74Q ARG* 5.2 5.1 - - - +
79Q LEU 3.2 13.1 + - - +
80Q GLU* 2.9 19.7 + - - +
82Q ALA* 1.3 78.6 - - - +
84Q ARG* 1.3 60.7 + - + +
86Q GLN* 3.1 23.0 + - - +
87Q ARG* 3.4 15.1 + - - +
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Residues in contact with ARG 84 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7Q ALA* 5.9 0.7 - - - +
11Q VAL* 5.8 5.8 - - + -
80Q GLU 3.8 9.6 + - - +
81Q GLU* 2.7 24.5 + - - +
83Q ALA* 1.3 74.0 - - + +
85Q LEU* 1.3 59.5 + - - +
87Q ARG* 3.2 39.4 + - - +
88Q ALA* 3.7 4.2 + - - +
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Residues in contact with LEU 85 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4Q LYS* 5.3 2.4 - - - -
7Q ALA* 4.4 9.4 - - + -
8Q ILE* 3.9 34.8 - - + +
11Q VAL* 4.4 21.3 - - + -
66Q ALA* 4.6 14.9 - - + +
69Q VAL* 3.7 18.4 - - + -
70Q VAL* 3.4 15.7 - - + -
73Q LEU* 3.7 30.5 - - + -
81Q GLU 3.4 2.0 + - - +
82Q ALA* 3.0 16.4 + - - +
84Q ARG* 1.3 75.3 - - - +
86Q GLN* 1.3 52.0 + - - +
87Q ARG 2.9 4.7 - - - -
88Q ALA* 2.6 37.5 + - + +
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Residues in contact with GLN 86 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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67Q GLU* 5.5 10.8 + - - +
70Q VAL* 4.3 6.7 - - + +
74Q ARG* 3.4 25.0 - - - +
82Q ALA 3.2 6.7 + - - +
83Q ALA* 3.1 14.7 + - - +
85Q LEU* 1.3 78.3 - - - +
87Q ARG* 1.3 61.1 + - + +
88Q ALA 3.2 1.3 + - - -
89Q ALA* 4.5 10.0 + - - +
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Residues in contact with ARG 87 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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83Q ALA* 3.8 14.4 + - - +
84Q ARG* 3.2 36.5 + - - +
85Q LEU 2.9 0.8 - - - -
86Q GLN* 1.3 76.1 - - + +
88Q ALA* 1.3 50.8 + - - +
89Q ALA* 2.6 26.3 + - - +
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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