Contacts of the strand formed by residues 19 - 25 (chain M) in PDB entry 1V7M
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 VAL 19 (chain M).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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11M MET* 3.7 27.8 - - + -
13M ALA* 3.8 19.5 - - + -
17M GLU 3.4 0.6 + - - +
18M LYS* 1.3 75.1 - - - +
20M THR* 1.3 63.5 + - - +
21M ILE* 4.2 13.2 - - + -
72M LEU* 5.8 0.4 - - + +
73M THR* 3.4 4.3 - - - +
74M ILE* 2.8 47.6 + - + +
77M MET* 3.8 30.5 - - + -
103M LEU* 3.9 17.0 - - + -
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Residues in contact with THR 20 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8M PRO* 4.7 2.8 - - - +
11M MET* 3.8 15.0 - - - +
18M LYS* 4.0 25.5 + - + +
19M VAL* 1.3 78.4 - - - +
21M ILE* 1.4 65.4 + - - +
22M THR* 5.0 4.0 + - - -
71M SER* 5.0 6.1 + - - -
72M LEU 3.7 4.5 - - - -
73M THR* 3.8 16.6 + - - -
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Residues in contact with ILE 21 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6M GLN* 4.7 0.7 - - - +
8M PRO* 4.8 4.7 - - + -
11M MET* 4.2 11.0 - - + -
19M VAL* 4.2 13.5 - - + -
20M THR* 1.4 78.3 + - - +
22M THR* 1.3 67.2 + - - +
34M TRP* 4.0 21.4 - - + -
71M SER* 3.0 7.6 - - - -
72M LEU* 2.8 55.6 + - + +
85M TYR* 4.3 19.5 - - + -
101M THR* 3.4 47.8 - - + +
103M LEU* 5.0 5.4 - - + -
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Residues in contact with THR 22 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5M THR 3.8 0.4 - - - +
6M GLN* 3.2 7.3 - - - +
7M SER* 2.8 48.8 + - - +
8M PRO* 4.6 3.0 - - - +
20M THR* 5.0 4.5 + - - -
21M ILE* 1.3 80.0 + - - +
23M CYS* 1.3 70.6 + - - +
24M SER* 4.7 6.1 - - - +
34M TRP* 4.3 2.7 - - - -
69M SER* 5.0 8.5 - - - +
70M TYR 3.5 9.9 - - - +
71M SER* 4.3 6.1 - - - +
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Residues in contact with CYS 23 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4M LEU* 4.3 10.1 - - - -
5M THR 3.4 4.9 - - - -
6M GLN* 4.5 0.2 - - + -
22M THR* 1.3 78.0 - - - +
24M SER* 1.3 60.1 + - - +
32M MET* 4.0 18.2 - - - -
34M TRP* 3.7 20.4 - - + -
68M THR 4.3 0.3 - - - +
69M SER* 3.8 0.9 - - - -
70M TYR* 2.7 46.8 + - + +
87M CYS* 2.1 48.0 - - - -
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Residues in contact with SER 24 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3M VAL 3.7 0.7 - - - +
4M LEU* 3.3 8.6 - - - +
5M THR* 2.8 47.3 + - - -
22M THR* 5.2 6.7 - - - +
23M CYS* 1.3 73.6 - - - +
25M ALA* 1.3 61.7 + - - +
32M MET* 5.7 0.2 - - - -
68M THR 3.7 8.5 + - - -
69M SER* 5.0 1.1 - - - +
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Residues in contact with ALA 25 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2M VAL* 4.6 2.5 - - + -
3M VAL 3.5 4.0 - - - -
4M LEU* 3.7 17.5 - - + -
24M SER* 1.3 74.6 + - - +
26M SER* 1.3 68.5 + - - +
27M SER 3.4 17.4 + - - +
29M VAL* 4.7 4.3 - - + -
32M MET* 4.6 10.8 - - + -
67M GLY 4.6 2.9 - - - +
68M THR* 3.0 35.2 + - - +
70M TYR* 5.4 0.9 - - + -
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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