In molecular biology, a CCAAT box (also sometimes abbreviated a CAAT box or CAT box) is a distinct pattern of nucleotides with GGCCAATCT consensus sequence that occur upstream by 60–100 bases to the initial transcription site.

（2）CAAT框（CAAT box）：其一致顺序为GGGTCAATCT，是真核生物基因常有的调节区，位于转录起始点上游约-80-100bp处，可能也是RNA聚合酶的一个结合处，控制着转录起始的频率。 （3）GC框（GC box）：有两个拷贝，位于CAAT框的两侧，由GGCGGG组成，是一个转录调节区，有激活转录的功能。 除了这三种以外，真核生物基因组的一些重要上游元件、应答元件还有：ATGCAAAT的八聚体、ATATTCAT的POU、CANNG的E框以及NRSE、HSE、SRE …

2024年10月10日 · The CAAT box is an essential element in gene expression regulation, serving as a binding site for transcription factors that influence gene transcription into RNA. Its presence and functionality ensure genes are expressed at the right time and in the correct amounts, which is important for normal cellular function and development.

NFI, or CAAT box transcription factor (CTF), is a family of four site-specific DNA-binding proteins (NFI-A, NFI-B, NFI-C and NFI-X) that were first identified as promoters of adenoviral replication and subsequently shown to regulate expression of a wide spectrum of eukaryotic genes via binding to the inverted repeat sequence 5′-TTGGC(N)5GCCAA ...

Comparisons among sequences predicted to encode the major late promoter (MLP) of adenoviruses from a wide variety of host species show that an inverted CAAT box is among the most highly conserved transcription elements found in the putative MLPs.

CAAT框（CAAT box）：其一致顺序为GGCTCAATCT，是真核生物基因常有的调节区，位于转录起始点上游约-80bp处，是转录因子CTF/NF-1的结合位点，控制着转录起始的频率。 CAAT盒是最早被人们描述的常见启动子元件之一，常位于接近-80的位置，但是它可以在离起始点较远的距离仍能起作用，且在两种取向均可发挥作用。 CAAT盒的突变敏感性提示了它在决定转录效率上有很强的作用，但是突变对启动子的特异性没有影响。 CAAT框（CAAT box）：其一致顺序 …

2020年4月29日 · A CCAAT box (also sometimes abbreviated a CAAT box or CAT box) is a distinct pattern of nucleotides along the template strand of DNA in eukaryotes. On the template strand, the CAAT box consensus sequence is 3'-(C/T)(A/G)(A/G)CCAATC(A/G)-5'.

2013年12月14日 · TATA—box是第一个鉴定出来的真核生物启动子元件. 点前25—30bp的区域内,其一致性序列为TATAWAW. 核生物结构基因的启动子序列中至少含有1个TATA.box. 24bp的区域内,与前人的大多数研究相符_1... 件,主要分布在转录起始位点及其前面的150bp范围内. 芽,芽的长度总体来说不是最长的. 1.33%,薯块外观很不好,已失去使用价值. 也很好,在条件较差的库房可以发挥其优势,成本也不太高. 薯储存问题最有效的方法,但应注重与实际情况结合. 铃薯,2oo6 …

The CAAT box, also known as the Goldberg box, is a DNA sequence element that serves as a core promoter in eukaryotic transcription. It is a key regulatory sequence located upstream of the transcription start site and is essential for the proper initiation of transcription by RNA polymerase II.

2025年3月14日 · The CAT box, also known as the CCAAT box, is a highly conserved DNA sequence found in eukaryotic genes, located approximately 75 base pairs upstream from the transcription start site at the 5′ end. It binds to NF-1/CTF transcription factors. References. The European Bioinformatics Institute.