Contacts of the strand formed by residues 1174 - 1178 (chain A) in PDB entry 6FF7
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 PHE1174 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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976A MET 4.1 0.7 - - - +
977A LEU* 3.7 0.6 - - - -
978A GLU* 2.9 48.4 + - + +
1127A GLY* 6.3 2.2 - - - -
1173A SER* 1.3 79.1 - - - +
1175A VAL* 1.3 60.9 + - - +
1188A ASN* 6.3 2.7 - - + +
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Residues in contact with VAL1175 (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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976A MET 3.4 9.4 - - - +
977A LEU* 4.8 7.4 - - + -
1127A GLY* 4.7 15.3 - - - -
1150A GLY* 4.6 25.1 - - - +
1154A PHE* 5.8 4.5 - - + -
1174A PHE* 1.3 74.5 - - - +
1176A SER* 1.3 62.5 + - - +
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Residues in contact with SER1176 (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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975A VAL* 3.4 3.8 - - - +
976A MET* 2.9 35.7 + - - +
1140A MET* 5.5 11.7 - - - -
1174A PHE 4.4 0.2 + - - -
1175A VAL* 1.3 76.9 - - - +
1177A VAL* 1.3 63.6 + - - +
1185A LEU* 6.2 0.2 - - - -
1186A LEU* 3.3 38.1 - - - -
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Residues in contact with VAL1177 (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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973A CYS* 6.2 0.9 - - + -
974A ASN 3.5 6.1 - - - +
975A VAL* 3.9 14.1 - - + +
1140A MET* 5.9 2.1 - - - +
1146A ASP* 4.7 24.5 - - + +
1150A GLY* 6.5 1.1 - - - -
1176A SER* 1.3 79.5 - - - +
1178A TYR* 1.3 61.8 + - - +
1179A SER* 5.6 3.4 - - - -
1182A ASN* 3.3 21.1 - - + +
1184A ASN 3.4 11.3 + - - +
1185A LEU* 5.1 2.4 - - - +
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Residues in contact with TYR1178 (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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973A CYS* 3.4 3.5 - - - +
974A ASN* 2.8 47.6 + - + +
1177A VAL* 1.3 71.4 - - - +
1179A SER* 1.3 61.3 + - - +
1182A ASN 3.5 8.7 - - - +
1183A PRO 5.4 0.7 - - - -
1184A ASN 4.1 6.3 - - - +
1185A LEU* 4.0 24.8 - - + +
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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