Contacts of the strand formed by residues 30 - 34 (chain A) in PDB entry 1MQ8
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 LEU 30 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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28A PRO* 3.3 7.9 + - - +
29A LYS* 1.3 88.6 - - + +
31A LEU* 1.3 75.8 + - - +
66A TYR* 3.5 30.5 - - + +
67A SER* 3.3 7.7 - - - -
68A ASN* 3.0 52.8 + - - +
242B ALA 4.9 3.4 - - - +
243B THR 4.7 4.0 - - - -
244B ASP* 4.8 5.2 - - - -
245B SER* 5.0 12.1 - - - +
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Residues in contact with LEU 31 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2A THR* 5.3 0.4 - - + -
21A CYS* 3.2 42.2 - - + +
22A SER 4.7 2.2 - - - +
23A THR* 4.0 22.9 - - + -
28A PRO* 5.8 4.0 - - + -
30A LEU* 1.3 83.1 - - - +
32A GLY* 1.3 64.4 + - - +
47A ASN 4.7 3.6 - - - +
48A ASN* 4.3 2.5 - - - -
49A ARG 4.1 8.3 - - - +
50A LYS* 3.2 46.2 + - + +
52A TYR* 4.1 0.2 + - - -
66A TYR* 3.0 28.9 + - - +
67A SER* 4.4 6.7 - - - -
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Residues in contact with GLY 32 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21A CYS* 3.5 11.3 - - - -
31A LEU* 1.3 79.6 - - - +
33A ILE* 1.3 59.6 + - - -
52A TYR* 3.1 15.5 - - - -
66A TYR* 3.0 49.0 + - - +
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Residues in contact with ILE 33 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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19A VAL* 4.2 25.8 - - + -
21A CYS* 3.6 20.4 - - - -
32A GLY* 1.3 74.6 - - - -
34A GLU* 1.3 63.7 + - - +
35A THR* 4.0 17.9 + - + +
39A LYS* 4.5 13.9 - - + +
52A TYR* 3.1 40.1 + - + -
54A LEU* 4.3 6.5 - - + -
63A PRO* 3.9 21.5 - - + -
64A MET 3.5 7.0 - - - +
65A CYS* 4.1 5.2 - - - -
66A TYR* 4.1 5.8 - - - -
241B GLU* 3.7 16.5 - - - +
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Residues in contact with GLU 34 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33A ILE* 1.3 77.4 - - - +
35A THR* 1.3 60.3 + - - +
64A MET* 2.6 35.3 + - + +
66A TYR* 4.3 1.0 - - - -
139B SER* 3.2 3.5 + - - -
140B MET* 2.9 30.3 - - + +
141B SER* 3.4 7.8 + - - +
204B LEU 3.1 26.9 - - - +
205B LEU* 3.5 16.8 - - + -
206B THR* 2.9 7.2 + - - -
241B GLU* 4.4 5.6 - - - +
243B THR* 3.4 22.7 - - - +
901B MG 2.2 29.8 - - - -
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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