Contacts of the helix formed by residues 322 - 327 (chain E) in PDB entry 3GOK
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 HIS 322 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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297E GLU* 3.9 28.6 + - + +
301E LEU* 3.7 40.9 + - + +
314E MET* 4.5 10.3 - - + -
318E GLU 3.2 11.2 + - - +
319E PHE* 3.2 17.3 + - - +
321E ASN* 1.3 74.5 - - - +
323E PRO* 1.3 74.9 - - + +
324E TRP* 3.1 40.3 + - + +
325E ILE* 2.9 11.0 + - + +
326E MET 2.8 24.3 + - - -
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Residues in contact with PRO 323 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
297E GLU* 3.5 22.9 - - - +
321E ASN 3.3 5.6 - - - +
322E HIS* 1.3 93.7 - - + +
324E TRP* 1.3 59.1 + - - +
326E MET* 3.9 9.6 - - + -
327E GLN* 3.1 40.1 + - - +
330E LYS* 5.8 0.2 - - - +
331E VAL* 5.1 0.2 - - - +
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Residues in contact with TRP 324 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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160E GLU* 3.1 46.2 + - + -
163E ALA* 4.1 8.3 - - + -
164E SER* 2.8 50.1 + - - -
167E MET* 4.2 3.8 - - + -
253E MET* 4.1 25.1 - - + -
257E LEU* 4.4 5.6 - - + -
297E GLU* 3.9 15.6 + - - +
298E VAL* 3.3 34.8 - - + +
301E LEU* 4.0 12.1 - - + -
322E HIS* 3.0 23.6 + - + +
323E PRO* 1.3 80.0 - - - +
325E ILE* 1.3 85.1 + - + +
328E SER* 4.2 1.6 - - - -
331E VAL* 3.6 29.6 - - + +
332E PRO* 5.9 0.9 - - + -
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Residues in contact with ILE 325 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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164E SER* 4.2 4.7 - - - +
167E MET* 3.9 12.3 - - + -
168E LYS* 3.6 35.1 - - + +
301E LEU* 4.7 2.2 - - + -
319E PHE* 3.6 51.4 - - + +
320E MET* 4.2 20.4 - - + +
322E HIS* 2.9 10.6 + - + +
324E TRP* 1.3 107.6 - - + +
326E MET* 1.3 67.2 + - - +
327E GLN 3.4 0.2 - - - -
328E SER* 3.1 19.1 + - - -
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Residues in contact with MET 326 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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168E LYS* 3.9 16.0 + - - +
320E MET 3.5 14.1 - - - +
321E ASN* 3.1 48.7 - - - +
322E HIS 2.8 10.6 + - - +
323E PRO* 4.0 7.9 - - + -
325E ILE* 1.3 78.6 - - - +
327E GLN* 1.3 69.1 + - + +
328E SER 3.6 2.1 + - - -
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Residues in contact with GLN 327 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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323E PRO* 3.1 30.3 + - - +
324E TRP 4.3 1.1 - - - -
325E ILE 4.2 0.2 - - - -
326E MET* 1.3 85.8 - - + +
328E SER* 1.3 64.3 - - - +
329E THR* 3.1 6.7 - - - +
330E LYS* 3.1 52.6 + - + +
331E VAL* 3.5 13.3 + - - +
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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