Contacts of the helix formed by residues 485 - 489 (chain D) in PDB entry 6RI7
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 MET 485 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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364D HIS* 4.8 20.4 - - + +
420D PRO* 4.1 14.4 - - + -
436D ALA* 4.0 13.0 - - + +
437D PHE* 5.2 3.6 - - + +
438D GLU* 4.5 7.9 - - + +
480D ALA 3.5 6.0 + - - +
481D ARG* 3.4 59.7 - - + +
483D LEU 3.9 0.2 - - - -
484D MET* 1.3 75.8 - - - +
486D SER* 1.3 53.3 + - - +
487D THR* 2.5 33.5 + - + +
488D ASN* 2.5 31.0 + - - +
3E ARG 5.4 0.2 - - - +
4E VAL* 3.6 24.7 - - - +
5E THR* 5.7 0.2 - - - -
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Residues in contact with SER 486 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
363D LEU* 4.2 24.5 + - - +
364D HIS* 6.0 0.4 - - - +
435D GLN* 2.2 42.6 + - - +
436D ALA 4.0 3.8 + - - -
437D PHE* 3.9 13.2 - - - -
453D VAL* 4.1 7.8 - - - +
484D MET 3.6 3.9 + - - -
485D MET* 1.3 70.2 - - - +
487D THR* 1.3 63.7 + - - +
488D ASN 3.0 0.7 - - - -
489D ASN* 2.7 32.0 + - - +
490D ILE* 5.0 0.9 - - - +
500D ILE* 5.1 4.9 - - - +
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Residues in contact with THR 487 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
363D LEU* 4.1 12.3 + - + +
364D HIS* 3.9 24.2 - - + -
485D MET* 2.5 17.6 + - + +
486D SER* 1.3 72.5 - - - +
488D ASN* 1.3 78.6 + - - -
489D ASN 3.0 5.4 + - - -
490D ILE* 3.7 17.9 - - - +
614D LEU* 4.3 12.5 - - - +
618D VAL* 4.5 18.0 - - + +
4E VAL* 3.8 25.6 + - + +
5E THR* 3.8 19.7 - - + +
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Residues in contact with ASN 488 (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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481D ARG 3.8 12.6 - - - +
482D ALA 3.6 12.8 - - - +
483D LEU* 5.1 3.6 - - - -
485D MET* 2.5 24.9 + - - +
487D THR* 1.3 88.4 + - - +
489D ASN* 1.3 70.3 + - - +
490D ILE* 4.0 1.3 - - - -
614D LEU* 4.6 15.8 - - - +
904D ALA* 5.3 4.3 - - - +
905D ARG* 3.6 17.0 + - - +
5E THR* 5.0 1.8 - - - -
6E VAL* 3.4 28.5 + - - +
7E GLN* 5.3 1.4 + - - +
16E ARG* 3.4 24.5 - - - +
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Residues in contact with ASN 489 (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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1281C TYR* 3.1 41.0 + - - -
431D ARG* 4.2 12.1 + - - -
432D LEU* 4.3 18.2 - - + +
435D GLN* 4.7 10.7 + - - +
483D LEU 4.3 6.0 + - - -
484D MET* 4.9 10.3 - - - +
486D SER* 2.7 28.1 + - - +
487D THR 3.0 1.0 + - - -
488D ASN* 1.3 85.9 - - - +
490D ILE* 1.3 61.4 + - - +
491D LEU 3.5 10.4 - - - +
493D PRO* 6.1 1.4 - - - +
499D ILE* 3.8 5.0 - - - +
500D ILE* 3.6 14.0 - - - +
904D ALA* 5.0 5.5 - - - +
905D ARG* 4.5 2.3 + - - -
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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