Comit ==* Patr Ii

An Efficient Implementation of PATR for Categorial Unification Grammar

This paper describes C-PATR, a new C implementation of the PATR-II formalism [4, 5] for unification-based grammars. It includes innovations that originate with a project for developing an efficient translator from English to first-order logic [2], most notably the extension of the standard unifcation algorithm for list values [section 3]. In addition the unifier and a chart parser tuned for cat...

P-PATR: A Compiler for Unification-Based Grammars

Although divergent in residues of the peptide binding site, conserved chimpanzee Patr-AL and polymorphic human HLA-A*02 have overlapping peptide-binding repertoires.

Patr-AL is an expressed, non-polymorphic MHC class I gene carried by ∼50% of chimpanzee MHC haplotypes. Comparing Patr-AL(+) and Patr-AL(-) haplotypes showed Patr-AL defines a unique 125-kb genomic block flanked by blocks containing classical Patr-A and pseudogene Patr-H. Orthologous to Patr-AL are polymorphic orangutan Popy-A and the 5' part of human pseudogene HLA-Y, carried by ∼10% of HLA ha...

Identification of five different Patr class I molecules that bind HLA supertype peptides and definition of their peptide binding motifs.

We have sequenced the Pan troglodytes class I (Patr) molecules from three common chimpanzees and expressed them as single molecules in a class I-deficient cell line. These lines were utilized to obtain purified class I molecules to define the peptide binding motifs associated with five different Patr molecules. Based on these experiments, as well as analysis of the predicted structure of the B ...

D-PATR: A Development Environment for Unification-Based Grammars

I)-PATR is a development environment for unification-based grammars on Xerox l i00 series work stations. It is based on the PATR formalism developed at SRI International. This formalism is suitable for encoding a wide variety of grammars. At one end of this range are simple phrase-structure grammars with no feature augmentations. The PATR formalism can also be used to encode grammars that are b...