GenBank-Updates@genbank.bio.net (05/29/91)
LOCUS XELK81B1G 296 bp ds-DNA VRT 28-MAY-1991 DEFINITION Xenopus laevis XK81B1 gene 5' flanking region ACCESSION X12731 X05154 KEYWORDS keratin. SOURCE Xenopus laevis DNA. ORGANISM Xenopus laevis Eukaryota; Animalia; Metazoa; Chordata; Vertebrata; Amphibia; Lissamphibia; Anura; Archeobatrachia; Pipoidea; Pipidae. REFERENCE 1 (bases 1 to 296) AUTHORS Miyatani,S., Winkles,J.A., Sargent,T.D. and Dawid,I.B. TITLE Stage-specific Keratins in Xenopus laevis Embryos and Tadpoles: The XK81 Gene Family JOURNAL J. Cell Biol. 103, 1957-1965 (1986) STANDARD full automatic COMMENT *source: clone=G8123; Three homology regions upstream of the TATA-box were observed in genes A1, B1 and B2. It may be speculated that these regions contain signals for the temporally and regionally controlled activation of the keratin genes during frog embryogenesis. The transcription of the XK81B1 locus remains unsure because of no cDNA clone is available. See also X04668 for gene A1 and X05180 for gene B2. From EMBL entry XLK81B1G; dated 06-JUL-1989. FEATURES Location/Qualifiers misc_feature 13..31 /note="seq. homolog. to A and B genes [See CC]" misc_feature 59..94 /note="seq. homolog. to A and B genes" misc_feature 166..174 /note="seq. homolog. to A and B genes" promoter 237..243 /note="pot. TATA-box" precursor_RNA 268..>296 /note="pot. XK81B1 transcript" BASE COUNT 91 a 54 c 61 g 90 t ORIGIN 1 ttcagcaggg ttgcctgggg caggttagag agagaagggt gaaaactgta aagaaaagaa 61 gaatttgcct ctcccagttt ctaactaata cctttagggc tatttcattt atttaaatat 121 gaactgatta tgatggtgat tttctggaaa cagatgctga cctgtcaaaa aaagtattta 181 ctctgggagg ctgtccccag tgtaacggaa acacccacca ctctttctac atacattata 241 tatatatata tataaagcct gtcaaagctg catgcatcca ttctgttttg tgcagg //