Contacts of the strand formed by residues 831 - 834 (chain B) in PDB entry 3BBT
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 831 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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753B PRO 3.1 21.0 + - - -
754B HIS* 3.6 25.4 + + - -
798B TRP* 4.7 1.0 - - - +
801B GLN* 3.4 3.3 - - - -
827B LYS* 2.9 47.0 + - + +
828B SER* 2.8 32.1 + - - +
829B PRO 3.4 2.0 + - - -
830B ASN* 1.3 75.7 - - - +
832B VAL* 1.3 62.1 + - - +
833B LYS* 3.8 20.5 - - + -
751D ASP* 4.6 1.1 - - - +
752D HIS 5.2 0.8 + - - -
753D PRO* 3.7 28.3 - - + +
831D HIS* 4.2 14.5 - + - -
833D LYS* 4.4 8.2 + - - -
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Residues in contact with VAL 832 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
754B HIS* 3.2 27.7 + - - +
779B LEU* 3.9 21.5 - - + -
798B TRP* 3.6 36.1 - - + +
801B GLN* 2.8 27.8 + - + +
802B ILE* 4.2 11.9 - - + +
824B VAL* 3.7 15.7 - - + -
825B LEU 3.2 13.0 - - - +
826B VAL* 4.3 9.2 - - + -
831B HIS* 1.3 77.4 - - - +
833B LYS* 1.3 64.2 + - - +
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Residues in contact with LYS 833 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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752B HIS 5.2 1.9 + - - -
753B PRO* 3.2 26.9 - - - +
754B HIS* 3.5 4.3 - - - -
755B LEU 3.7 16.4 + - - +
756B VAL* 3.6 21.8 - - + +
757B ARG 5.8 0.8 - - - +
772B GLN* 4.4 8.5 + - - -
774B MET* 4.1 27.1 - - + +
824B VAL* 3.4 4.6 - - - -
825B LEU* 2.8 41.9 + - + +
827B LYS* 4.4 17.0 - - + +
831B HIS* 3.8 21.1 - - + +
832B VAL* 1.3 76.7 - - - +
834B ILE* 1.3 61.9 + - - +
835B THR 3.7 0.3 + - - -
827D LYS* 5.3 7.3 - - - +
831D HIS* 5.1 8.2 + - - -
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Residues in contact with ILE 834 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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754B HIS* 2.7 15.6 + - + +
755B LEU* 3.4 14.7 - - + -
756B VAL 2.9 22.4 + - - -
802B ILE* 3.1 48.5 - - + +
805B GLY* 3.9 10.1 - - - -
806B MET* 3.8 27.4 - - + +
809B LEU* 4.6 2.2 - - + -
816B HIS* 3.7 29.2 - - + +
819B LEU* 4.1 11.4 - - + -
823B ASN 3.8 5.4 - - - +
824B VAL* 4.4 6.1 - - + +
833B LYS* 1.3 72.5 - - - +
835B THR* 1.3 63.4 + - - +
837B PHE* 3.7 5.9 - - + -
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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