PMID- 7664344
OWN - NLM
STAT- MEDLINE
DCOM- 19951006
LR  - 20141120
IS  - 0092-8674 (Print)
IS  - 0092-8674 (Linking)
VI  - 82
IP  - 4
DP  - 1995 Aug 25
TI  - Nonclassical binding of formylated peptide in crystal structure of the MHC class 
      Ib molecule H2-M3.
PG  - 655-64
AB  - H2-M3 is a class Ib MHC molecule of the mouse with a 10(4)-fold preference for
      binding N-formylated peptides. To elucidate the basis of this unusual
      specificity, we expressed and crystallized a soluble form of M3 with a formylated
      nonamer peptide, fMYFINILTL, and determined the structure by X-ray
      crystallography. M3, refined at 2.1 A resolution, resembles class la MHC
      molecules in its overall structure, but differs in the peptide-binding groove.
      The A pocket, which usually accommodates the free N-terminus of a bound peptide, 
      is closed, and the peptide is shifted one residue, such that the P1 side chain is
      lodged in the B pocket. The formyl group is coordinated by His-9 and a bound
      water on the floor of the groove.
FAU - Wang, C R
AU  - Wang CR
AD  - Department of Biochemistry, University of Texas Southwestern Medical Center
      Dallas 75235-9050, USA.
FAU - Castano, A R
AU  - Castano AR
FAU - Peterson, P A
AU  - Peterson PA
FAU - Slaughter, C
AU  - Slaughter C
FAU - Lindahl, K F
AU  - Lindahl KF
FAU - Deisenhofer, J
AU  - Deisenhofer J
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Cell
JT  - Cell
JID - 0413066
RN  - 0 (DNA, Complementary)
RN  - 0 (Histocompatibility Antigens Class I)
RN  - 0 (Oligopeptides)
RN  - 4289-98-9 (N-Formylmethionine)
SB  - IM
MH  - Amino Acid Sequence
MH  - Animals
MH  - Base Sequence
MH  - Binding Sites
MH  - Crystallography, X-Ray
MH  - DNA, Complementary/genetics
MH  - Electrochemistry
MH  - Histocompatibility Antigens Class I/*chemistry/genetics/*metabolism
MH  - In Vitro Techniques
MH  - Mice
MH  - Models, Molecular
MH  - Molecular Sequence Data
MH  - Molecular Structure
MH  - N-Formylmethionine/metabolism
MH  - Oligopeptides/chemistry/genetics/*metabolism
MH  - Protein Binding
MH  - Protein Conformation
EDAT- 1995/08/25 00:00
MHDA- 1995/08/25 00:01
CRDT- 1995/08/25 00:00
PHST- 1995/08/25 00:00 [pubmed]
PHST- 1995/08/25 00:01 [medline]
PHST- 1995/08/25 00:00 [entrez]
AID - 0092-8674(95)90037-3 [pii]
PST - ppublish
SO  - Cell. 1995 Aug 25;82(4):655-64.