Contacts of the strand formed by residues 42 - 47 (chain A) in PDB entry 4C48
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 42 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40A PRO 3.3 5.7 + - - +
41A PRO* 1.3 77.6 - - - +
43A VAL* 1.3 63.9 + - - +
44A THR* 4.0 1.1 + - - -
91A THR* 3.9 11.2 - - + -
92A LEU 3.1 16.6 - - - +
93A THR* 3.7 20.4 - - + -
94A PHE* 4.5 1.1 - - - -
100A ALA* 6.0 0.2 - - - +
131A LYS* 3.9 2.5 - - - -
132A SER 3.4 30.5 + - - +
295A THR* 4.0 7.0 + - - -
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Residues in contact with VAL 43 (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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41A PRO* 5.8 0.7 - - + -
42A ALA* 1.3 74.8 - - - +
44A THR* 1.3 70.3 + - - +
45A ILE 4.2 0.2 - - - -
91A THR* 3.4 3.1 - - - +
92A LEU* 2.9 31.2 + - + +
94A PHE* 4.4 15.0 - - + -
100A ALA* 4.3 5.2 - - + +
103A ALA* 4.2 6.7 - - + -
104A GLN* 3.7 31.4 - - + +
107A VAL* 4.0 20.6 - - + -
129A VAL* 3.4 31.9 - - + -
130A GLU 3.4 7.2 - - - +
131A LYS* 4.1 11.4 - - + -
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Residues in contact with THR 44 (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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42A ALA 4.0 2.4 + - - -
43A VAL* 1.3 82.4 + - - +
45A ILE* 1.3 62.6 + - - +
46A SER* 3.4 10.0 + - - +
89A GLN* 3.8 38.8 - - + +
90A ILE 3.5 2.0 - - - +
91A THR* 3.9 18.8 - - - +
128A SER 3.2 5.5 - - - +
129A VAL* 4.2 1.1 - - - -
130A GLU* 2.8 35.5 + - - +
132A SER* 3.3 22.3 + - - +
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Residues in contact with ILE 45 (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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44A THR* 1.3 69.5 - - - +
46A SER* 1.3 68.2 + - - +
47A ALA* 6.1 0.2 - - + -
65A ILE* 4.0 17.5 - - + -
69A MET* 3.6 25.6 - - + -
88A VAL* 4.4 0.6 - - - -
89A GLN* 3.3 4.2 - - - +
90A ILE* 2.8 49.9 + - + +
92A LEU* 4.0 10.5 - - + -
107A VAL* 3.5 34.8 - - + +
111A LEU* 3.4 29.8 - - + -
127A VAL* 4.1 7.6 - - + -
128A SER 3.3 2.9 - - - -
129A VAL* 3.7 5.6 - - + -
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Residues in contact with SER 46 (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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44A THR* 3.4 18.5 + - - +
45A ILE* 1.3 81.7 + - - +
47A ALA* 1.3 61.0 + - - +
88A VAL 3.3 9.2 - - - -
89A GLN* 4.8 7.9 - - - +
126A GLY 4.5 0.2 - - - +
127A VAL* 3.2 7.3 - - - +
128A SER* 2.8 45.5 + - - -
130A GLU* 4.3 7.7 + - - +
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Residues in contact with ALA 47 (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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45A ILE* 6.1 0.7 - - + -
46A SER* 1.3 75.6 - - - +
48A SER* 1.3 66.9 + - - +
61A VAL* 3.8 28.9 - - + -
65A ILE* 6.2 1.3 - - + -
87A THR* 3.3 5.2 - - - +
88A VAL* 3.0 38.5 + - + +
122A VAL* 4.2 2.2 - - + -
126A GLY 4.4 2.0 - - - -
127A VAL* 4.1 21.3 - - + -
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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