Contacts of the helix formed by residues 1472 - 1481 (chain D) in PDB entry 1MZN
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 HIS1472 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1298C VAL* 4.1 5.2 - - + -
1302C ARG* 3.3 50.5 + - - -
1453C GLU* 3.3 30.5 + - - +
1456C GLU* 4.6 3.5 + - + +
1457C ALA 4.5 13.2 - - - -
1458C PRO* 4.5 10.8 - - + +
1471D LYS* 1.3 107.0 + - + +
1473D LYS* 1.3 65.6 + - - +
1474D ILE 3.3 0.6 + - - -
1475D LEU* 3.4 8.6 + - + -
1476D HIS* 3.0 49.1 + + - +
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Residues in contact with LYS1473 (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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1453C GLU* 3.1 5.9 + - - +
1471D LYS* 3.8 12.4 + - - +
1472D HIS* 1.3 75.3 - - - +
1474D ILE* 1.3 64.7 + - + +
1476D HIS* 3.9 3.5 - - - +
1477D ARG* 2.9 59.6 + - - +
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Residues in contact with ILE1474 (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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1277C PHE* 4.3 10.5 - - + -
1449C THR* 3.7 37.7 - - - +
1450C PHE* 3.6 39.7 - - + +
1453C GLU* 2.9 23.4 + - + +
1473D LYS* 1.3 75.7 - - + +
1475D LEU* 1.3 64.3 + - - +
1477D ARG* 3.3 7.6 + - - +
1478D LEU* 3.1 31.7 + - + +
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Residues in contact with LEU1475 (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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1280C VAL* 3.8 26.2 - - + -
1298C VAL* 3.9 22.4 - - + +
1301C LEU* 4.0 22.4 - - + -
1302C ARG* 3.6 33.2 - - + +
1450C PHE* 4.1 15.5 - - + -
1453C GLU* 3.0 13.7 + - - +
1454C MET* 4.4 11.0 - - + -
1472D HIS* 3.4 8.5 + - + +
1474D ILE* 1.3 79.0 - - - +
1476D HIS* 1.3 63.2 + - - +
1478D LEU* 3.5 2.2 + - - +
1479D LEU* 3.1 33.2 + - + +
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Residues in contact with HIS1476 (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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1294C LEU* 4.6 13.4 - - + +
1295C ASP* 4.8 10.9 + - - -
1298C VAL* 3.8 29.3 - - + +
1471D LYS* 4.6 18.0 + - - -
1472D HIS* 3.0 59.0 + + + +
1473D LYS* 3.9 3.4 - - - +
1475D LEU* 1.3 75.1 - - - +
1477D ARG* 1.3 59.4 + - + +
1479D LEU* 3.3 5.3 + - - +
1480D GLN* 2.8 35.8 + - - +
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Residues in contact with ARG1477 (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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1473D LYS* 2.9 55.5 + - - +
1474D ILE* 3.7 7.1 - - - +
1476D HIS* 1.3 77.9 - - + +
1478D LEU* 1.3 66.0 + - + +
1480D GLN* 4.7 4.0 - - - -
1481D ASP* 2.9 37.3 + - + +
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Residues in contact with LEU1478 (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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1277C PHE* 3.8 27.6 - - + +
1280C VAL* 3.8 23.7 - - + +
1281C GLU* 4.8 8.1 - - - +
1284C LYS* 2.7 32.4 + - - -
1450C PHE* 3.5 37.5 - - + -
1474D ILE* 3.1 18.9 + - + +
1475D LEU 3.9 2.5 - - - +
1477D ARG* 1.3 82.5 - - + +
1479D LEU* 1.3 52.5 + - - +
1481D ASP 4.0 5.7 - - - +
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Residues in contact with LEU1479 (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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1280C VAL* 3.6 21.5 - - + +
1284C LYS* 3.4 23.2 + - + +
1289C PHE* 4.1 8.5 - - + -
1294C LEU* 3.7 13.2 - - + -
1297C GLN* 3.5 36.9 - - + +
1298C VAL* 3.6 34.8 - - + +
1301C LEU* 4.0 12.1 - - + -
1475D LEU* 3.1 29.5 + - + +
1476D HIS 3.7 3.1 - - - +
1478D LEU* 1.3 76.0 - - - +
1480D GLN* 1.3 69.7 + - - +
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Residues in contact with GLN1480 (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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1284C LYS* 4.8 0.7 + - - -
1294C LEU* 4.1 29.2 - - + +
1476D HIS* 2.8 23.4 + - - +
1477D ARG* 4.1 2.5 - - - +
1479D LEU* 1.3 78.5 - - - +
1481D ASP* 1.3 83.2 + - - +
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Residues in contact with ASP1481 (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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1284C LYS* 4.1 9.0 + - - -
1477D ARG* 2.9 25.4 + - + +
1478D LEU* 4.0 12.0 - - - +
1480D GLN* 1.3 107.3 + - - +
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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