Contacts of the strand formed by residues 39 - 42 (chain A) in PDB entry 2NUP
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 39 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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19A PHE* 2.9 10.8 - - - +
20A SER* 2.6 32.5 + - - -
37A PRO* 3.8 7.9 - - + +
38A VAL* 1.3 77.2 - - - +
40A ALA* 1.3 62.8 + - - +
459A ILE 3.3 12.1 - - - +
460A TYR* 4.1 17.7 - - + -
461A PHE* 4.2 1.6 - - - -
525A LEU* 3.3 32.5 - - + -
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Residues in contact with ALA 40 (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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17A VAL* 3.7 24.0 - - + -
18A ARG 3.3 5.4 - - - -
19A PHE* 3.9 13.2 - - + -
39A ALA* 1.3 76.8 - - - +
41A LEU* 1.3 60.1 + - - +
42A PHE* 3.5 3.0 + - + +
458A ALA* 3.3 3.8 - - - -
459A ILE* 2.8 35.0 + - + +
461A PHE* 3.8 20.2 - - + -
481A PHE* 4.8 4.7 - - + -
525A LEU* 4.0 4.8 - - - +
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Residues in contact with LEU 41 (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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16A GLY 3.8 1.7 - - - +
17A VAL* 3.5 4.8 - - - -
18A ARG* 2.8 36.2 + - + +
40A ALA* 1.3 69.5 - - - +
42A PHE* 1.3 60.7 + - - +
43A THR* 4.1 1.0 + - - -
456A THR* 3.9 15.7 - - + +
457A LEU 3.7 2.0 - - - -
458A ALA* 4.2 4.9 - - + -
521A ALA* 4.5 5.8 - - - +
524A ILE* 3.4 34.8 - - + -
525A LEU* 3.5 25.1 - - + +
528A ARG* 4.2 19.1 - - - +
611A ASP 5.1 0.4 - - - -
612A LEU* 3.8 44.0 - - + +
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Residues in contact with PHE 42 (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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15A ASP 4.8 4.9 - - - -
16A GLY 3.9 5.8 - - - -
17A VAL* 4.4 10.8 - - + -
40A ALA 3.5 2.0 + - - +
41A LEU* 1.3 73.3 - - - +
43A THR* 1.3 61.9 + - - +
44A PRO* 3.2 49.0 - - + +
406A LEU* 3.9 25.1 - - + -
456A THR* 3.3 2.6 - - - -
457A LEU* 2.8 42.6 + - + +
459A ILE* 4.5 9.6 - - + -
481A PHE* 3.4 66.6 - + + -
483A THR* 4.2 4.7 - - - -
497A THR* 4.6 13.2 - - - -
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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