Contacts of the helix formed by residues 629 - 635 (chain D) in PDB entry 3RMD
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 629 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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406D TYR* 2.9 22.4 + - + +
407D VAL* 4.5 2.5 - - - +
408D MET* 4.8 7.0 - - + -
627D VAL* 3.5 4.5 + - - +
628D SER* 1.3 69.7 - - - +
630D ASP* 1.3 66.7 + - - +
631D LYS 3.2 2.0 - - - -
632D ILE* 2.6 27.7 + - + +
633D ILE* 2.9 12.9 + - + +
651D LEU* 3.5 41.1 - - + -
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Residues in contact with ASP 630 (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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404D TYR* 4.7 0.7 - - - -
405D LYS* 3.8 20.5 + - - +
406D TYR* 3.2 35.3 + - - +
628D SER* 3.2 19.4 + - - +
629D ALA* 1.3 79.5 - - - +
631D LYS* 1.3 68.2 + - + +
633D ILE* 3.1 3.5 + - - +
634D ASP* 2.9 32.7 + - - +
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Residues in contact with LYS 631 (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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609D CYS* 4.4 9.8 - - + +
611D THR* 4.6 15.7 - - + +
614D GLU* 3.1 33.7 - - + +
616D PHE* 3.8 31.9 - - + -
628D SER* 4.3 3.1 + - - +
629D ALA 3.2 0.2 - - - -
630D ASP* 1.3 85.1 - - + +
632D ILE* 1.3 60.8 + - - +
634D ASP* 3.7 17.8 - - - +
635D LYS* 3.3 22.9 + - - +
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Residues in contact with ILE 632 (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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901B PHE* 3.9 13.0 - - + -
408D MET* 4.7 7.4 - - + -
605D LEU* 4.3 14.8 - - + -
609D CYS* 4.5 15.9 - - - -
616D PHE* 4.6 6.5 - - + -
627D VAL* 5.6 1.6 - - + -
628D SER 4.8 2.7 - - - +
629D ALA* 2.6 34.2 + - + +
631D LYS* 1.3 69.9 - - - +
633D ILE* 1.3 64.5 + - - +
634D ASP 3.1 1.3 - - - -
635D LYS* 3.2 20.2 + - - +
636D VAL* 3.9 2.9 + - - +
650D PHE* 3.7 33.6 - - + -
651D LEU* 4.0 11.4 - - + -
654D PHE* 3.9 31.0 - - + -
659D MET* 5.1 0.7 - - - -
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Residues in contact with ILE 633 (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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406D TYR* 3.7 34.3 - - + -
629D ALA* 2.9 12.4 + - + +
630D ASP 3.6 7.0 - - - +
632D ILE* 1.3 75.7 - - - +
634D ASP* 1.3 55.2 + - - +
636D VAL* 3.3 7.8 - - - +
637D GLY* 2.8 30.1 + - - -
638D GLU* 3.6 34.3 - - + +
641D PHE* 4.4 5.2 - - + -
647D TRP* 4.0 23.8 - - + -
650D PHE* 3.8 26.7 - - + -
651D LEU* 4.0 16.8 - - + -
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Residues in contact with ASP 634 (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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888B LYS* 3.7 16.9 - - - +
630D ASP* 2.9 30.2 + - - +
631D LYS* 3.7 23.1 + - - +
632D ILE 3.1 0.2 - - - -
633D ILE* 1.3 76.6 - - - +
635D LYS* 1.3 55.3 + - - +
636D VAL 2.7 17.3 + - - -
637D GLY* 3.1 13.6 + - - +
638D GLU* 5.5 2.9 + - - +
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Residues in contact with LYS 635 (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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888B LYS* 4.1 22.3 - - + +
900B MET* 3.3 47.0 - - - +
901B PHE* 3.6 29.6 - - + +
902B ASP 5.2 2.8 - - - +
608D VAL 4.3 4.5 - - - -
609D CYS* 3.0 40.2 + - + +
610D GLY* 4.9 2.2 - - - -
631D LYS 3.3 11.4 + - - +
632D ILE 3.2 13.6 + - - +
634D ASP* 1.3 77.1 - - - +
636D VAL* 1.3 63.8 + - + +
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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