We identified a probable new null HLA‐C allele, C*03:23N, which originated from C*03:04:01:02, but does not react with Cw3 antibodies. This allele was identified by sequence analysis, which indicated that a single G‐to‐A substitution at position 406 in exon 3 created a null allele under a new mechanism: the mutation changes the position of the intron 2‐exon 3 splice site to be further into exon 3, leading to a frameshift and a premature stop codon. Sequence analysis of cDNA confirmed the existence of the causative alternative acceptor splice site and the resultant deletion of 64 nucleotides in exon 3. Analysis of 220 blood or bone marrow donors in Japan with C*03:23N demonstrated that Japanese HLA‐C*03:23N is on the haplotype A*26:01∼C*03:23N∼B*40:02∼DRB1*09:01.

No abstract

This paper describes a display system that creates a 3-D image by overlapping two identical 3-D images displayed by two stereoscopic displays at different depths. Both images were displayed so that observers perceived them at the same depth and could see them fused into one image. We measured the accommodation depth of the observers' eyes when they saw the fused image. We found that the accommodation depths when they saw the fused images differed from that when either of the stereoscopic displays presented a single image by itself. This accommodation depth for fused image was between them. These results indicate that the accommodation depth was determined by the reciprocal effect of the two displays. This indicates the possibility that this display system can provide stereoscopic views without there being any contradictions between accommodation depth and perceived depth for 3-D images.

We describe the identification of alternatively expressed HLA allele C*07:02:01:17N.

HLA-A*24:183N, A*02:356N, and A*02:15N share the same stop codon at the same position in exon 4.