Contacts of the helix formed by residues 342 - 351 (chain F) in PDB entry 7C97
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 GLN 342 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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338F HIS 4.2 2.0 + - - +
339F ARG* 2.9 26.9 + - + +
340F ALA 3.2 0.2 - - - -
341F LEU* 1.3 74.9 - - - +
343F LYS* 1.3 81.4 + - + +
344F LEU 3.2 2.2 - - - -
345F GLN* 2.7 56.2 + - - +
346F GLN* 2.8 39.9 + - - +
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Residues in contact with LYS 343 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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279F ARG* 4.6 8.7 + - - +
339F ARG* 3.2 33.3 + - - +
340F ALA 4.3 6.7 + - - +
341F LEU 3.6 0.2 - - - -
342F GLN* 1.3 113.8 - - + +
344F LEU* 1.3 61.0 + - - +
346F GLN* 3.2 30.0 + - + +
347F ILE* 3.4 10.0 + - - +
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Residues in contact with LEU 344 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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279F ARG 4.6 4.8 + - - +
280F VAL* 4.0 27.8 - - + +
283F GLN* 3.6 21.5 - - + -
310F GLU* 3.2 39.5 - - + +
311F THR* 4.0 11.0 - - - +
340F ALA 4.9 0.8 + - - +
341F LEU* 3.0 48.0 - - + +
343F LYS* 1.3 74.3 - - - +
345F GLN* 1.3 61.6 + - + +
346F GLN 3.1 0.7 - - - -
347F ILE* 2.7 37.1 + - + +
348F GLU* 3.1 8.0 + - - +
355F ILE* 3.9 6.7 - - + +
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Residues in contact with GLN 345 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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311F THR* 4.2 25.2 + - + +
338F HIS* 4.0 29.5 + - - -
341F LEU* 3.0 23.8 + - - +
342F GLN* 2.7 36.3 + - - +
344F LEU* 1.3 83.7 - - + +
346F GLN* 1.3 58.0 + - - +
348F GLU* 2.8 40.0 - - - +
349F GLU* 3.3 10.7 - - - +
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Residues in contact with GLN 346 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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279F ARG* 5.3 0.7 - - - +
342F GLN* 2.8 48.4 + - - +
343F LYS* 3.2 23.2 - - - +
344F LEU 3.1 0.8 - - - -
345F GLN* 1.3 78.0 - - - +
347F ILE* 1.3 47.7 - - - +
349F GLU* 3.1 13.4 + - + +
350F GLU* 2.2 53.6 + - + +
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Residues in contact with ILE 347 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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276F MET* 3.9 17.9 - - + +
279F ARG* 3.5 34.1 - - + +
280F VAL* 3.4 32.8 - - + -
343F LYS 3.5 6.3 - - - +
344F LEU* 2.7 32.4 + - + +
346F GLN* 1.3 72.4 - - - +
348F GLU* 1.3 56.3 + - - +
350F GLU* 2.9 39.0 + - + +
351F THR* 3.0 15.7 + - + +
355F ILE* 4.5 7.6 - - + -
358F VAL* 4.8 11.7 - - + -
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Residues in contact with GLU 348 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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311F THR* 4.8 10.1 - - + +
344F LEU 3.1 6.3 + - - +
345F GLN* 2.8 34.5 - - - +
347F ILE* 1.3 75.5 - - - +
349F GLU* 1.3 79.4 + - - +
351F THR* 3.4 5.0 - - - +
352F GLY 2.6 30.0 + - - +
353F LEU 2.6 31.7 + - - +
354F THR* 4.1 5.9 - - - -
355F ILE* 3.8 26.6 - - + +
358F VAL* 4.7 1.8 - - - -
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Residues in contact with GLU 349 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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345F GLN* 3.3 12.9 - - - +
346F GLN* 3.1 14.3 + - - +
348F GLU* 1.3 95.2 + - - +
350F GLU* 1.3 62.8 + - - +
351F THR 3.1 2.2 - - - -
352F GLY* 2.9 20.4 + - - +
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Residues in contact with GLU 350 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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137F TYR* 4.9 2.4 + - - +
139F GLU* 3.6 14.6 - - - +
276F MET* 4.0 9.0 - - + +
279F ARG* 2.3 42.6 + - - -
346F GLN* 2.2 37.3 + - + +
347F ILE* 2.9 41.9 + - + +
349F GLU* 1.3 69.6 - - - +
351F THR* 1.3 55.0 + - - +
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Residues in contact with THR 351 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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137F TYR* 3.0 40.0 - - + -
138F PRO* 3.9 8.7 - - - +
139F GLU* 2.7 27.4 + - - +
347F ILE* 3.0 11.7 + - + +
348F GLU 3.8 3.1 - - - +
350F GLU* 1.3 74.1 - - - +
352F GLY* 1.3 55.8 + - - +
353F LEU* 2.9 21.9 + - + +
358F VAL* 3.3 34.3 - - + -
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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