Contacts of the strand formed by residues 23 - 31 (chain A) in PDB entry 3O71
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 TYR 23 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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10A GLU* 5.0 0.7 - - - +
19A VAL* 3.4 27.9 + - + +
20A GLY* 3.5 16.5 + - - -
22A ARG* 1.3 113.7 + - + +
24A THR* 1.3 66.7 + - - +
26A LEU* 4.9 1.9 - - - +
40A ALA* 4.7 1.6 - - + -
41A TYR 3.4 2.2 - - - +
42A ASP* 3.8 28.5 - - + -
49A VAL* 3.7 12.3 - - + -
51A ILE* 3.4 31.2 - - + -
86A ASP* 2.9 29.0 + - - +
88A ILE* 3.6 25.6 - - + -
102A VAL* 3.7 24.4 - - + +
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Residues in contact with THR 24 (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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10A GLU* 3.5 18.4 - - - +
20A GLY* 5.1 1.6 - - - -
21A PRO* 3.7 11.7 - - + +
22A ARG 4.1 0.2 + - - -
23A TYR* 1.3 79.1 - - - +
25A ASN* 1.3 87.1 + - - +
26A LEU* 3.5 5.4 - - - -
40A ALA* 3.5 4.2 - - - +
41A TYR* 2.9 30.3 + - - +
43A ASN* 3.2 27.8 + - - +
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Residues in contact with ASN 25 (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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10A GLU* 3.4 11.2 + - - -
24A THR* 1.3 101.9 + - - +
26A LEU* 1.3 59.6 - - - +
27A SER* 4.0 1.1 + - - -
39A SER* 3.5 10.7 + - - +
40A ALA* 3.5 5.4 - - - -
41A TYR* 4.1 19.9 - - + +
43A ASN* 5.2 0.3 - - - +
48A ARG* 6.0 0.2 + - - -
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Residues in contact with LEU 26 (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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10A GLU* 3.5 35.6 + - + +
12A VAL* 3.7 24.3 - - + +
17A PHE* 3.6 37.9 - - + +
19A VAL* 4.2 21.5 - - + -
23A TYR 5.0 1.3 - - - +
24A THR* 4.0 7.2 - - - +
25A ASN* 1.3 74.4 - - - +
27A SER* 1.3 62.6 + - - +
38A CYS* 4.7 7.4 - - + -
39A SER 3.4 3.6 - - - +
40A ALA* 3.3 29.6 - - + -
51A ILE* 4.5 3.6 - - + -
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Residues in contact with SER 27 (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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12A VAL* 4.7 2.5 - - - -
25A ASN 4.0 1.3 + - - -
26A LEU* 1.3 76.0 - - - +
28A TYR* 1.3 67.9 + - - +
29A ILE* 4.0 0.7 - - - +
38A CYS* 3.3 6.2 - - - +
39A SER* 2.8 49.5 + - - -
48A ARG* 5.4 0.5 + - - -
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Residues in contact with TYR 28 (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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12A VAL* 3.8 15.4 - - + +
13A ARG* 3.3 54.8 + - + +
27A SER* 1.3 76.5 + - - +
29A ILE* 1.3 75.4 + - - +
30A GLY* 3.5 26.1 - - - -
31A GLU* 3.3 34.9 + - + +
36A MET* 3.6 29.6 - - + -
38A CYS* 3.9 8.1 - - - -
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Residues in contact with ILE 29 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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27A SER* 3.4 1.8 + - - +
28A TYR* 1.3 87.8 - - - +
30A GLY* 1.3 55.3 + - - +
37A VAL* 2.9 30.4 + - + +
38A CYS 3.8 5.2 - - - +
39A SER* 3.5 39.0 - - - +
50A ALA* 5.1 1.8 - - + -
105A LEU* 3.9 17.0 - - + -
106A MET 4.3 11.4 - - - +
107A GLU* 4.6 15.5 - - - +
108A THR* 5.7 1.6 - - - -
112A LYS* 2.7 36.1 + - - +
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Residues in contact with GLY 30 (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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28A TYR* 3.5 18.7 - - - -
29A ILE* 1.3 80.8 - - - +
31A GLU* 1.3 62.6 + - - +
36A MET* 3.5 0.2 - - - +
37A VAL* 2.8 37.2 + - - +
112A LYS* 4.2 8.3 - - - -
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Residues in contact with GLU 31 (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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13A ARG* 5.5 1.9 + - - -
28A TYR* 3.3 27.4 + - + +
30A GLY* 1.3 74.3 - - - +
32A GLY* 1.3 63.0 + - - +
35A GLY 3.3 14.5 - - - +
36A MET* 4.1 12.3 - - + +
37A VAL* 4.6 0.7 - - - +
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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