Assignment of two human alpha-1,3-galactosyltransferase gene sequences (GGTA1 and GGTA1P) to chromosomes 9q33-q34 and 12q14-q15.
alpha-1,3-Galactosyltransferase is a terminal glycosyltransferase that is widely expressed in a variety of mammalian species, with the notable exception of man, apes, and Old World monkeys. Although transcripts for this enzyme are not detectable in humans, homologous sequences have been identified in human genomic DNA. These sequences correspond to a processed pseudogene that maps to chromosome 12 and the inactivated remnant of the once functional source gene that maps to chromosome 9. We have now established that the former sequence (GGTA1P) is localized to 12q14-q15 and the latter sequence (GGTA1) is localized to 9q33-q34 [corrected].
Shaper
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NL
Cell Structure and Function Laboratory, Johns Hopkins School of Medicine, Baltimore, Maryland 21205.
Lin
S P
SP
Joziasse
D H
DH
Kim
D Y
DY
Yang-Feng
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TL
D002871:Chromosome Banding; D002874:Chromosome Mapping; D002881:Chromosomes, Human, Pair 12; D002899:Chromosomes, Human, Pair 9; D005700:Galactosyltransferases / Q000235:genetics*; D005796:Genes; D006801:Humans; D007621:Karyotyping
D005700:Galactosyltransferases; C037959:beta-D-galactosyl-N-acetylglucosaminylglycopeptide alpha-1,3-galactosyltransferase