J. Biol. Chem., Vol. 265, Issue 17, 9634-9637, Jun, 1990
Primary structure of glycolipid transfer protein from pig brain
A Abe
Department of Biochemistry, Sapporo Medical College, Japan.
The amino acid sequence of a glycolipid transfer protein from pig brain was
determined by automatic sequencing and fast atom bombardment mass
spectroscopic analysis of peptides produced by chemical and enzymatic
cleavage reactions. The protein consists of 208 residues, with N-
acetylalanine as the N-terminal residue and valine as the C-terminal
residue. It contains 3 cysteine residues. The primary structure of the
glycolipid transfer protein from pig brain is as follows: acetyl-A-L-L-
A-E-H-L-L-K-P-L-P-A-D-K15-Q-I-E-T- G-P-F-L-E-A-V-S-H-L-P30-P-F-F-D-C-L-
G-S-P-V-F- T-P-I-K45-A-D-I-S-G-N-I-T-K-I-K-A-V-Y-D60-T-N- P-A-K-F-R-T-L-
Q-N-I-L-E-V75-E-K-E-M-Y-G-A-E- W-P-K-V-G-A-T90-L-A-L-M-W-L-K-R-G-L-R-F-
I-Q- V105-F-L-Q-S-I-C-D-G-E-R-D-E-N-H-P120-N-L-I-R- V-N-A-T-K-A-Y-E-M-A-
L135-K-K-Y-H-G-W-I-V-Q- K-I-F-Q-A-A150-L-Y-A-A-P-Y-K-S-D-F-L-K-A-L-
S165-K-G-Q-N-V-T-E-E-E-C-L-E-K-V-R180-L-F-L-V- N-Y-T-A-T-I-D-V-I-Y-E195-
M-Y-T-K-M-N-A-E-L-N- Y-K-V-OH. The sequence does not have detectable
homology with other lipid transfer proteins or lipid-binding proteins. The
cysteine residue at position 35 is reactive to iodoacetamide under
nondenaturing conditions.