Contacts of the helix formed by residues 338 - 348 (chain C) in PDB entry 2HAK
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 338 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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333C VAL* 5.0 0.2 - - - -
336C GLY 3.9 0.4 + - - -
337C PHE* 1.3 74.7 - - - +
339C ARG* 1.3 63.0 + - - +
340C ASP* 2.9 7.5 + - + +
341C GLU* 2.9 26.8 + - + +
342C ILE* 3.2 24.6 + - - +
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Residues in contact with ARG 339 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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326C THR* 4.9 11.5 - - - +
329C ILE* 3.4 37.2 - - + +
330C ASP* 2.9 26.2 + - - +
333C VAL* 3.9 23.4 - - + +
337C PHE 4.1 1.0 + - - -
338C ALA* 1.3 71.5 - - - +
340C ASP* 1.3 60.8 + - + +
342C ILE* 3.7 10.4 - - - +
343C ASN* 3.2 26.2 + - - +
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Residues in contact with ASP 340 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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338C ALA* 2.9 4.6 - - + -
339C ARG* 1.3 82.7 - - - +
341C GLU* 1.4 68.6 + - - +
342C ILE 3.1 1.6 - - - -
343C ASN* 3.1 9.2 + - - +
344C ASP* 2.9 35.0 + - - +
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Residues in contact with GLU 341 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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336C GLY 4.0 2.6 - - - +
337C PHE* 3.1 28.0 - - + +
338C ALA* 2.9 41.9 + - + +
340C ASP* 1.4 74.5 - - - +
342C ILE* 1.4 61.6 + - - +
344C ASP* 3.4 7.5 - - - +
345C ALA* 3.0 26.0 + - - +
354C VAL* 3.9 17.6 - - + +
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Residues in contact with ILE 342 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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323C PHE 5.2 0.4 - - - +
329C ILE* 4.5 25.1 - - + +
332C MET* 3.5 35.9 - - + -
333C VAL* 4.6 2.9 - - + -
337C PHE* 3.8 9.0 - - + -
338C ALA 3.2 20.9 + - - +
339C ARG* 3.7 9.2 - - - +
340C ASP 3.1 0.8 - - - -
341C GLU* 1.4 76.3 - - - +
343C ASN* 1.3 64.7 + - + +
345C ALA* 3.1 10.6 + - - +
346C LEU* 3.2 34.3 + - + +
354C VAL* 3.6 25.1 - - + +
358C TYR* 4.3 13.5 - - + -
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Residues in contact with ASN 343 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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323C PHE* 4.6 14.1 + - - +
324C ASN* 3.5 22.0 + - - -
339C ARG 3.2 13.9 + - - +
340C ASP* 3.1 11.2 + - - +
342C ILE* 1.3 81.0 - - - +
344C ASP* 1.3 66.7 + - - +
346C LEU* 3.1 5.8 + - - +
347C ILE* 3.0 46.6 + - - +
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Residues in contact with ASP 344 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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340C ASP* 2.9 28.2 + - - +
341C GLU* 3.4 8.3 - - - +
343C ASN* 1.3 79.0 + - - +
345C ALA* 1.3 62.4 + - - +
347C ILE* 3.5 9.5 - - - +
348C ASN* 3.0 46.8 + - - +
350C LYS* 4.5 11.2 + - + +
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Residues in contact with ALA 345 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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341C GLU 3.0 17.6 + - - +
342C ILE 3.1 5.3 + - - +
344C ASP* 1.3 76.8 - - - +
346C LEU* 1.3 59.3 + - - +
349C GLN* 3.3 1.6 + - - -
350C LYS* 2.8 41.2 + - + -
352C ASP* 3.7 30.5 - - - +
354C VAL* 4.2 6.7 - - + -
355C MET* 3.7 15.9 - - + +
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Residues in contact with LEU 346 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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323C PHE* 3.7 52.2 - - + +
342C ILE* 3.2 25.9 + - + +
343C ASN* 3.1 5.6 + - - +
345C ALA* 1.3 74.8 - - - +
347C ILE* 1.3 61.9 + - - +
348C ASN 3.0 2.0 - - - -
349C GLN* 2.8 34.9 + - - +
355C MET* 4.1 25.4 - - + +
358C TYR* 3.6 51.1 - - + -
359C ILE* 5.4 3.4 - - + -
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Residues in contact with ILE 347 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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323C PHE* 3.9 24.5 - - + -
343C ASN* 3.0 40.2 + - - +
344C ASP* 3.5 11.9 - - - +
346C LEU* 1.3 76.9 - - - +
348C ASN* 1.3 77.8 + - - +
349C GLN* 3.4 6.6 + - - +
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Residues in contact with ASN 348 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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344C ASP* 3.0 39.5 + - - +
347C ILE* 1.3 94.3 - - - +
349C GLN* 1.3 68.9 + - - +
350C LYS* 3.2 20.2 + - + +
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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