Contacts of the helix formed by residues 38 - 45 (chain D) in PDB entry 1JZ3
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 ASN 38 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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36D TRP* 3.3 8.2 - - - +
37D ARG* 1.3 83.0 - - - +
39D SER* 1.4 63.1 + - - +
40D GLU* 3.0 33.3 + - - +
41D GLU* 3.0 31.9 + - + +
42D ALA 3.3 16.1 + - - -
322D LEU* 4.0 2.7 - - - +
325D ALA* 5.2 0.2 - - - -
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Residues in contact with SER 39 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38D ASN* 1.4 70.0 + - - +
40D GLU* 1.3 60.6 + - - +
42D ALA* 3.3 8.9 + - - +
43D ARG* 2.8 28.6 + - - +
312D VAL* 4.3 6.9 - - - +
314D GLU* 2.5 40.0 + - - +
322D LEU* 3.8 17.4 - - - +
325D ALA* 4.5 2.8 - - - +
8406D DMS 4.7 1.7 - - - +
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Residues in contact with GLU 40 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38D ASN* 3.0 10.4 + - - +
39D SER* 1.3 75.9 - - - +
41D GLU* 1.3 66.6 + - - +
43D ARG* 2.7 48.2 + - - +
44D THR* 2.9 31.0 + - - +
46D ARG* 4.1 15.2 + - - +
261D TRP* 5.5 2.4 - - - -
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Residues in contact with GLU 41 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36D TRP* 3.6 19.8 + - + +
38D ASN* 3.0 38.0 + - + +
40D GLU* 1.3 78.0 - - - +
42D ALA* 1.3 62.6 + - - +
44D THR* 3.3 2.6 + - - -
45D ASP 3.0 18.4 + - - -
46D ARG* 2.8 64.1 + - + +
47D PRO 4.4 7.0 - - - +
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Residues in contact with ALA 42 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36D TRP* 3.4 42.8 - - + -
38D ASN 3.3 4.6 + - - +
39D SER 3.3 10.5 + - - +
41D GLU* 1.3 75.5 - - - +
43D ARG* 1.3 67.7 + - - +
45D ASP 3.3 0.9 + - - -
310D ARG* 2.9 27.4 + - - -
312D VAL* 4.4 4.7 - - + -
325D ALA* 4.1 13.9 - - + -
327D ALA* 3.7 11.8 - - + +
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Residues in contact with ARG 43 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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39D SER 2.8 17.1 + - - +
40D GLU* 2.7 45.1 + - - +
41D GLU 3.2 0.4 - - - -
42D ALA* 1.3 77.4 - - - +
44D THR* 1.3 75.0 + - - +
45D ASP* 4.9 0.2 - - - +
261D TRP* 3.4 53.2 - - + +
263D GLY 3.2 24.2 + - - -
264D GLU* 3.8 27.1 + - - +
310D ARG* 3.2 27.0 + - + +
312D VAL* 3.7 16.4 - - + +
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Residues in contact with THR 44 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40D GLU* 2.9 23.7 + - - +
41D GLU* 3.3 6.9 + - - -
42D ALA 3.3 0.2 - - - -
43D ARG* 1.3 105.8 - - - +
45D ASP* 1.3 68.6 + - - +
46D ARG* 3.2 46.0 + - - +
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Residues in contact with ASP 45 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36D TRP* 3.5 6.6 - - - -
41D GLU 3.0 5.3 + - - -
42D ALA 3.3 1.8 + - - -
43D ARG 3.3 4.2 - - - -
44D THR* 1.3 78.9 - - - +
46D ARG* 1.4 64.8 + - - +
310D ARG* 2.9 36.6 + - - +
400D THR* 5.5 0.2 - - - +
404D ARG* 2.8 35.0 + - - +
8404D DMS 3.8 5.4 - - - +
8501D DMS 3.0 33.2 + - - +
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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