Contacts of the strand formed by residues 441 - 448 (chain D) in PDB entry 1XMI
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 LEU 441 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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397D VAL 4.2 1.6 - - - +
398D THR* 3.2 7.3 - - - +
399D ALA* 2.8 33.6 + - + +
439D PRO* 3.6 2.1 - - - +
440D VAL* 1.3 91.2 - - + +
442D LYS* 1.3 60.8 + - - +
444D ILE* 4.1 18.4 - - + -
463D GLY* 3.7 20.4 - - - +
466D SER 3.9 0.7 - - - -
467D LEU* 3.7 27.4 - - + +
470D MET* 3.6 28.9 - - + -
475D LEU* 3.8 18.8 - - + -
619D LEU* 4.3 14.8 - - + -
622D GLY* 3.3 11.4 - - - +
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Residues in contact with LYS 442 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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397D VAL 3.6 0.4 + - - -
398D THR* 3.7 10.5 - - + +
439D PRO* 4.2 26.9 - - + +
441D LEU* 1.3 75.4 - - - +
443D ASP* 1.3 77.9 + - + +
444D ILE* 3.4 12.1 + - - +
621D GLU 5.9 0.4 - - - +
622D GLY* 2.8 12.4 + - - +
623D SER* 3.8 28.9 + - - +
624D SER 4.3 0.3 + - - -
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Residues in contact with ASP 443 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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396D ASN* 2.8 36.9 + - - +
397D VAL 3.0 13.2 + - - +
398D THR* 3.1 10.7 + - - +
442D LYS* 1.3 80.4 - - + +
444D ILE* 1.3 60.7 + - - +
445D ASN* 3.2 16.7 + - - -
624D SER* 4.5 8.7 + - - -
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Residues in contact with ILE 444 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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394D MET* 3.6 12.9 - - - +
396D ASN 3.4 6.4 + - - -
397D VAL* 2.9 42.5 + - + +
441D LEU* 4.1 23.6 - - + -
442D LYS 3.5 15.0 - - - +
443D ASP* 1.3 71.8 - - - +
445D ASN* 1.3 62.9 + - - +
446D PHE* 3.8 25.8 - - + -
467D LEU* 3.9 17.0 - - + -
470D MET* 5.4 0.2 - - + -
617D LEU* 4.7 7.6 - - + -
619D LEU* 4.0 15.7 - - + -
622D GLY 3.5 15.3 - - - +
624D SER* 3.9 18.8 - - - +
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Residues in contact with ASN 445 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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394D MET 3.3 5.6 - - - +
395D GLU* 3.7 5.2 - - - +
396D ASN* 2.8 33.0 + - - +
443D ASP* 3.2 42.6 + - - -
444D ILE* 1.3 76.3 - - - +
446D PHE* 1.3 66.1 + - - +
617D LEU* 5.4 2.1 - - - +
624D SER* 4.9 9.1 + - - -
627D TYR* 4.0 18.3 - - - +
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Residues in contact with PHE 446 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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392D VAL* 3.9 19.3 - - + -
393D VAL* 3.5 1.7 - - - +
394D MET* 2.9 71.3 + - + +
444D ILE* 3.8 19.7 - - + -
445D ASN* 1.3 75.8 - - - +
447D LYS* 1.3 64.7 + - - +
448D ILE* 3.7 28.0 - - + -
454D LEU* 4.3 18.6 - - + -
467D LEU* 4.1 14.1 - - + -
471D ILE* 4.6 7.4 - - + -
601D ILE* 5.1 2.5 - - + -
617D LEU* 4.2 13.0 - - + -
627D TYR* 3.5 28.0 - - + -
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Residues in contact with LYS 447 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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391D GLU* 2.9 36.9 + - - +
392D VAL 3.3 5.4 - - - +
393D VAL* 3.9 20.5 - - + +
446D PHE* 1.3 78.6 - - - +
448D ILE* 1.3 62.1 + - - +
449D GLU* 3.6 22.1 + - - +
452D GLN* 4.6 3.3 - - - +
615D LYS* 4.7 6.8 + - - +
627D TYR* 2.7 27.0 + - + +
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Residues in contact with ILE 448 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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390D THR 4.3 0.2 - - - +
391D GLU* 3.3 5.5 - - - +
392D VAL* 2.9 64.1 + - + +
446D PHE* 3.7 16.6 - - + -
447D LYS* 1.3 73.2 - - - +
449D GLU* 1.3 72.5 - - - +
452D GLN* 3.2 39.7 - - + +
453D LEU 3.9 0.7 - - - -
454D LEU* 3.6 35.7 - - + +
599D THR* 3.7 11.9 - - + -
600D ARG 3.8 6.5 - - - +
601D ILE* 4.9 4.0 - - + -
615D LYS* 5.9 4.0 - - + -
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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