Contacts of the helix formed by residues 662 - 671 (chain A) in PDB entry 3RLN
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 PRO 662 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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607A GLU 3.3 25.6 - - - +
660A GLU 3.5 6.9 - - - +
661A ILE* 1.3 90.3 - - + +
663A ALA* 1.3 65.3 + - - +
664A GLY* 3.3 2.4 + - - +
665A LEU* 3.3 16.6 + - + +
666A ILE* 3.2 21.4 + - - +
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Residues in contact with ALA 663 (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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661A ILE 3.5 3.1 + - - -
662A PRO* 1.3 73.0 - - - +
664A GLY* 1.3 57.1 + - - +
666A ILE* 3.5 12.4 + - - +
667A ALA* 3.0 27.2 + - - +
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Residues in contact with GLY 664 (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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662A PRO* 3.2 3.7 - - - +
663A ALA* 1.3 76.3 - - - +
665A LEU* 1.3 59.6 + - - +
667A ALA* 3.0 8.8 + - - +
668A SER* 2.8 26.7 + - - -
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Residues in contact with LEU 665 (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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605A ALA* 4.3 4.9 - - + -
606A THR 3.7 9.0 - - - +
607A GLU 3.3 27.1 - - - +
608A ASN* 3.8 15.9 - - - +
609A GLU* 3.7 17.3 - - - +
610A VAL* 3.7 25.4 - - + +
661A ILE* 3.8 11.0 - - + -
662A PRO* 3.3 19.0 + - + +
664A GLY* 1.3 71.6 - - - +
666A ILE* 1.3 67.5 + - - +
668A SER* 3.0 24.6 + - - +
669A ALA 3.2 8.8 + - - -
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Residues in contact with ILE 666 (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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581A MET* 4.0 11.0 - - + -
583A LEU* 3.9 26.6 - - + +
627A LYS* 4.6 11.4 - - - +
661A ILE* 3.5 42.2 - - + +
662A PRO 3.2 13.5 + - - +
663A ALA* 3.6 12.8 - - - +
665A LEU* 1.3 76.6 - - - +
667A ALA* 1.3 60.5 + - - +
669A ALA* 3.4 15.4 + - - +
670A SER* 3.8 7.3 + - - -
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Residues in contact with ALA 667 (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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663A ALA 3.0 13.8 + - - +
664A GLY* 3.0 12.5 + - - +
666A ILE* 1.3 74.7 - - - +
668A SER* 1.3 64.2 + - - +
669A ALA 3.0 2.0 - - - -
670A SER* 3.0 24.6 + - - +
671A VAL* 3.2 16.8 - - + +
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Residues in contact with SER 668 (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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610A VAL* 4.1 11.1 - - - +
612A ARG* 4.8 2.3 + - - -
664A GLY 2.8 12.6 + - - -
665A LEU* 3.0 19.9 + - - +
667A ALA* 1.3 76.0 - - - +
669A ALA* 1.3 61.0 + - - +
670A SER 3.6 0.3 + - - -
671A VAL* 3.8 19.0 + - - +
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Residues in contact with ALA 669 (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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583A LEU* 3.7 24.7 - - + -
584A ASN* 5.3 5.9 + - - +
603A THR* 4.0 16.6 - - + -
610A VAL* 4.0 10.1 - - + -
612A ARG* 2.7 31.8 + - - +
665A LEU 3.2 4.9 + - - +
666A ILE 3.5 12.1 - - - +
667A ALA 3.0 0.6 - - - -
668A SER* 1.3 82.2 + - - +
670A SER* 1.3 58.5 + - - +
671A VAL 3.8 2.1 + - - +
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Residues in contact with SER 670 (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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584A ASN* 5.9 4.3 - - - +
666A ILE 3.8 4.3 + - - -
667A ALA* 3.0 20.2 + - - +
669A ALA* 1.3 79.0 - - - +
671A VAL* 1.3 63.1 + - - +
672A THR* 3.5 6.8 + - - -
690A VAL* 6.0 1.4 - - - +
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Residues in contact with VAL 671 (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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612A ARG* 5.6 1.0 + - - -
667A ALA* 3.2 22.2 - - + +
668A SER* 3.8 14.3 + - - +
669A ALA 3.5 4.8 - - - +
670A SER* 1.3 78.4 - - - +
672A THR* 1.3 72.6 + - - +
673A PRO* 3.6 7.5 - - + +
674A LYS* 4.9 9.2 - - - +
688A ASN 4.6 3.1 - - - +
689A GLY* 5.5 0.6 - - - -
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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