Contacts of the strand formed by residues 94 - 98 (chain K) in PDB entry 1VQM
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 94 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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18K ILE* 4.5 4.8 - - - +
19K THR* 3.1 14.8 - - - +
21K ALA* 4.0 8.7 - - + -
73K VAL* 3.6 3.9 - - - +
74K VAL* 2.9 23.7 + - + -
75K ARG* 3.0 55.1 + - + +
92K ASP* 4.1 2.2 - - - +
93K ASN* 1.3 76.3 - - - +
95K ALA* 1.3 61.9 + - - +
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Residues in contact with ALA 95 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18K ILE* 3.6 22.4 - - + +
19K THR 2.9 5.5 + - - -
20K CYS* 3.5 7.4 - - - -
21K ALA* 2.9 24.0 + - - -
29K LEU* 4.1 8.3 - - + -
53K ILE* 4.5 3.4 - - + -
71K ALA* 4.1 14.4 - - + -
72K VAL 3.0 19.7 - - - +
73K VAL* 4.1 3.6 - - - -
74K VAL 4.1 0.9 - - - +
94K ALA* 1.3 75.2 - - - +
96K VAL* 1.3 66.6 + - - +
97K ILE 4.3 0.2 - - - -
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Residues in contact with VAL 96 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
21K ALA* 3.9 13.5 - - + +
22K ASP* 3.9 8.7 - - + +
71K ALA* 3.2 3.1 - - - -
72K VAL* 2.8 34.9 + - + +
74K VAL* 3.5 25.4 - - + -
95K ALA* 1.3 79.4 - - - +
97K ILE* 1.3 76.4 + - - +
98K VAL* 3.4 2.8 + - + +
104K PRO* 4.2 11.9 - - + -
109K LEU* 3.5 39.3 - - + -
113K ILE* 4.9 0.7 - - + -
124K VAL* 4.8 12.1 - - + -
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Residues in contact with ILE 97 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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20K CYS* 3.8 10.5 - - - -
22K ASP* 3.2 11.1 + - - +
24K THR* 3.3 28.5 - - + +
26K ALA* 3.8 13.7 - - + -
29K LEU* 4.4 14.4 - - + -
55K VAL* 6.5 0.4 - - + -
64K MET* 3.7 20.0 - - + -
69K LEU* 3.9 22.7 - - + -
70K GLU 3.5 14.6 - - - +
71K ALA* 4.0 2.0 - - + -
95K ALA 4.4 0.2 + - - -
96K VAL* 1.3 76.2 - - - +
98K VAL* 1.3 65.7 + - - +
104K PRO* 3.4 7.3 - - - +
105K ARG* 3.2 44.0 + - + -
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Residues in contact with VAL 98 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52K LYS* 4.8 6.7 - - + -
69K LEU* 5.4 0.3 - - - +
70K GLU* 2.9 36.1 + - + +
71K ALA* 4.5 0.7 - - - -
72K VAL* 4.2 19.7 - - + -
96K VAL* 3.4 5.8 + - + +
97K ILE* 1.3 84.2 - - - +
99K ASP* 1.3 74.8 + - - +
102K GLU* 3.3 40.6 - - + +
103K ASP 3.6 9.0 - - - -
104K PRO* 4.0 0.9 - - + -
105K ARG* 4.4 2.7 - - - +
124K VAL* 3.9 17.7 - - + -
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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