Contacts of the strand formed by residues 742 - 746 (chain B) in PDB entry 1P43
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 LYS 742 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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671B ILE* 3.3 6.1 - - - -
672B ALA* 2.8 35.2 + - + +
674B THR* 3.3 27.6 - - + +
739B GLY* 4.3 22.9 + - - -
741B VAL* 1.3 80.5 - - - +
743B ILE* 1.3 67.5 + - - +
790B PRO* 3.6 27.0 - - + +
792B VAL* 3.7 32.5 - - + +
928B GLU* 6.4 1.6 - - - -
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Residues in contact with ILE 743 (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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650B PHE* 5.0 1.6 - - - -
670B MET 3.3 13.2 - - - +
671B ILE* 5.0 0.2 - - + -
672B ALA 5.4 0.2 - - - -
725B LEU* 3.9 34.1 - - + -
728B ILE* 4.0 27.6 - - + -
729B VAL* 4.2 13.0 - - + -
732B ILE* 4.5 6.5 - - + -
742B LYS* 1.3 81.1 - - - +
744B GLY* 1.3 69.2 + - - +
745B LEU* 4.0 7.9 - - + -
789B TYR* 4.7 1.8 - - + -
790B PRO* 2.9 37.6 + - + +
791B ILE* 3.2 10.7 - - + -
792B VAL* 2.8 34.2 + - - +
793B SER 3.6 1.4 + - - -
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Residues in contact with GLY 744 (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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650B PHE* 4.3 15.3 - - - -
670B MET* 2.8 41.6 + - - +
671B ILE* 5.0 0.2 - - - +
743B ILE* 1.3 75.1 - - - +
745B LEU* 1.3 68.4 + - - +
793B SER* 3.2 19.1 - - - -
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Residues in contact with LEU 745 (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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666B LEU* 4.5 18.8 - - + -
668B GLN 3.3 6.3 - - - +
669B PHE* 3.5 35.7 - - + -
670B MET* 3.8 6.8 - - - +
725B LEU* 4.1 4.7 - - + -
743B ILE* 4.0 12.3 - - + -
744B GLY* 1.3 84.4 - - - +
746B ASP* 1.3 57.9 + - - +
747B CYS* 3.9 9.2 - - - -
782B TYR* 5.8 1.1 - - + -
785B LEU* 4.6 9.2 - - + -
791B ILE* 3.8 29.6 - - + -
793B SER* 2.8 11.8 + - - +
794B ILE* 3.6 19.3 - - + -
795B GLU* 2.8 32.2 + - - +
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Residues in contact with ASP 746 (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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666B LEU* 5.0 0.6 - - - +
667B GLN* 3.3 4.2 + - - +
668B GLN* 2.8 62.6 + - + +
670B MET* 4.0 1.8 - - + +
745B LEU* 1.3 72.8 - - - +
747B CYS* 1.3 61.9 + - - +
748B ALA* 3.0 21.6 + - - -
795B GLU* 2.8 27.3 - - - +
796B ASP* 3.9 1.9 - - - +
896B LYS* 3.3 2.8 + - - -
938B MG 2.2 31.0 - - - -
941B 2PG 3.1 12.1 - - - +
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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