Contacts of the helix formed by residues 417 - 424 (chain A) in PDB entry 3BJY
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 TRP 417 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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396A LYS 3.7 8.1 - - - +
397A ASN* 3.3 53.5 + - + -
398A SER 3.3 3.4 - - - -
399A ASP* 3.2 27.7 + - - -
400A ILE* 4.2 1.3 - - - -
415A GLY 4.7 2.5 - - - -
416A MET* 1.3 78.9 - - - +
418A VAL* 1.3 65.5 + - - +
419A SER* 4.0 7.9 - - - +
420A GLN* 3.0 16.3 + - + +
421A ALA* 3.0 19.9 + - - +
680A PRO* 4.8 9.6 - - + -
681A LYS* 3.9 25.4 - - + +
4T P 3.8 45.6 + - + -
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Residues in contact with VAL 418 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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392A CYS* 3.6 31.0 - - + -
394A GLY 4.1 6.3 - - - +
395A THR* 3.5 25.4 - - - +
396A LYS 3.4 7.1 + - - +
398A SER* 3.0 17.5 + - - +
400A ILE* 4.0 17.7 - - + -
416A MET 3.9 0.4 + - - -
417A TRP* 1.3 70.7 - - - +
419A SER* 1.3 62.7 + - - +
421A ALA* 3.2 2.5 + - - +
422A GLU* 3.0 40.6 + - - +
431A LEU* 4.2 14.4 - - + -
433A SER* 5.1 2.5 - - - +
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Residues in contact with SER 419 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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395A THR 4.9 1.1 - - - -
396A LYS* 2.8 41.1 + - - +
397A ASN* 3.3 13.6 + - - -
417A TRP* 4.0 8.1 - - - +
418A VAL* 1.3 76.0 - - - +
420A GLN* 1.3 64.7 + - - +
422A GLU* 3.6 8.7 + - - +
423A LYS* 3.5 35.3 + - - +
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Residues in contact with GLN 420 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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416A MET* 3.0 50.2 - - + +
417A TRP* 3.0 20.1 + - + +
419A SER* 1.3 80.3 + - - +
421A ALA* 1.3 63.8 + - - +
423A LYS* 3.3 26.3 + - + +
424A MET* 3.6 11.9 - - - +
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Residues in contact with ALA 421 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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400A ILE* 3.5 29.4 - - + -
412A ILE* 3.4 36.2 - - + +
416A MET* 4.1 9.1 - - - -
417A TRP 3.0 2.8 + - - +
418A VAL* 3.6 6.5 - - - +
420A GLN* 1.3 81.0 - - - +
422A GLU* 1.3 57.9 + - - +
424A MET* 2.9 25.2 + - - +
425A LEU* 3.7 3.5 + - - +
431A LEU* 5.0 5.8 - - + -
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Residues in contact with GLU 422 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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395A THR 4.3 6.9 - - - +
418A VAL* 3.0 33.8 + - - +
419A SER* 4.1 6.8 - - - +
421A ALA* 1.3 76.5 - - - +
423A LYS* 1.3 61.0 + - + +
424A MET 3.2 0.7 + - - -
425A LEU* 3.2 26.6 + - + +
431A LEU* 4.1 32.8 + - + +
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Residues in contact with LYS 423 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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419A SER* 3.5 23.7 + - - +
420A GLN* 3.3 15.0 + - + +
421A ALA 3.2 0.8 - - - -
422A GLU* 1.3 78.1 - - - +
424A MET* 1.3 61.6 + - + +
425A LEU 3.2 4.4 + - - +
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Residues in contact with MET 424 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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410A TYR* 3.5 33.3 - - - +
411A GLY* 3.6 31.6 - - - +
412A ILE* 4.1 7.4 - - + -
416A MET* 3.9 25.4 - - + +
420A GLN* 3.6 13.0 - - - +
421A ALA 2.9 8.1 + - - +
423A LYS* 1.3 81.1 - - + +
425A LEU* 1.3 60.3 + - - +
426A PRO* 3.6 7.6 - - - +
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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