Contacts of the strand formed by residues 58 - 63 (chain A) in PDB entry 4MCA
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 LYS 58 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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30A ASP* 2.9 15.1 + - - +
31A HIS* 3.4 24.1 - - + +
32A TYR* 3.0 22.5 + - - +
53A GLN* 5.7 5.8 - - - +
56A GLY* 5.0 7.6 - - - +
57A VAL* 1.3 79.7 - - - +
59A HIS* 1.3 62.3 + - - +
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Residues in contact with HIS 59 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31A HIS* 4.1 3.9 - - - -
32A TYR 3.2 10.5 - - - +
34A VAL* 4.2 9.4 - - + -
49A MET* 3.7 47.4 + - + +
52A LEU* 3.9 27.4 - - + -
53A GLN* 4.5 12.5 + - - +
57A VAL 3.2 24.7 - - - -
58A LYS* 1.3 78.2 - - - +
60A HIS* 1.3 59.5 + - - +
61A ALA 4.2 0.7 + - - -
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Residues in contact with HIS 60 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31A HIS* 5.0 0.4 + - - -
32A TYR 3.1 5.6 + - - +
33A LEU* 3.6 19.8 - - + +
34A VAL* 3.0 24.9 + - - -
59A HIS* 1.3 74.4 - - - +
61A ALA* 1.3 70.6 + - - +
62A ALA 3.6 0.2 + - - -
79A GLU* 2.5 31.7 + - + -
83A HIS* 3.3 46.8 + + + +
85A CYS* 5.2 0.4 - - - -
1001A ZN 3.6 20.2 - - - -
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Residues in contact with ALA 61 (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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34A VAL* 3.6 5.8 - - - -
41A MET* 3.7 24.7 - - + -
49A MET* 3.8 21.6 - - + +
59A HIS* 4.1 2.4 + - - -
60A HIS* 1.3 89.6 + - - +
62A ALA* 1.3 59.2 + - - +
79A GLU* 4.1 0.5 - - - +
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Residues in contact with ALA 62 (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 LEU* 3.8 17.0 - - + -
34A VAL 2.7 21.3 + - - +
35A ILE* 3.6 2.8 - - - +
36A ALA 3.3 17.0 + - - +
41A MET* 4.2 3.8 - - - +
61A ALA* 1.3 75.2 - - - +
63A LEU* 1.3 62.7 + - - +
64A PHE* 3.5 0.5 + - - -
75A ARG* 5.7 0.4 - - - +
76A LEU* 3.7 25.8 - - + -
79A GLU* 3.5 21.5 - - - +
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Residues in contact with LEU 63 (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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36A ALA 3.6 6.7 - - - +
38A ASP* 3.1 39.3 - - - +
41A MET* 5.3 2.0 - - + -
62A ALA* 1.3 71.5 - - - +
64A PHE* 1.3 70.3 + - - +
65A ASN* 3.1 32.8 - - - +
75A ARG* 3.0 26.9 + - - +
76A LEU* 4.5 1.3 - - - +
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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