The sequence of the human epidermal 58-kD (#5) type II keratin reveals an absence of 5' upstream sequence conservation between coexpressed epidermal keratins.

The sequence of the human epidermal 58-kD (#5) type II keratin reveals an absence of 5' upstream sequence conservation between coexpressed epidermal keratins.
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人表皮 58-kD 的序列(

DOI:
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发表时间:
1988
期刊:
DNA
影响因子:
--
通讯作者:
E. Rorke
E. Rorke
中科院分区:
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文献类型:
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作者:
Richard L. Eckert;E. Rorke

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我们报道了人类58-kD表皮角蛋白完整序列cDNA的分离和测序以及基因组克隆(#5)。该序列指定了一种62,471道尔顿的蛋白质,该蛋白质包含一个中央α -螺旋片段,能够形成一个螺旋状结构,两侧是非α -螺旋状区域。初级序列与其他已知的中间丝蛋白序列的比较揭示了许多共同的基序。58-kD角蛋白与其他II型角蛋白高度相似,与I型角蛋白和其他中间丝蛋白不太相似。58-kD角蛋白在多种组织中受类维甲酸调节,是表皮角质形成细胞中大量表达的四种角蛋白之一,在表皮角质形成细胞中,它可能对维持被皮的结构完整性很重要。将角蛋白5序列与共表达角蛋白14序列进行比较,发现在调控区域中缺乏序列保护,并表明共同序列元件可能不是I型和II型角蛋白伴侣协调表达所必需的。有趣的是,角蛋白5只包含一个与其他角蛋白中发现的SV40增强子样序列微弱相似的区域,这表明该序列基序可能不是所有表皮角蛋白调控或丰富表达所必需的。
We report the isolation and sequencing of cDNA and genomic clones encoding the complete sequence of the human 58-kD epidermal keratin (#5). The sequence specifies a protein of 62,471 daltons that contains a central alpha-helical segment capable of forming a coiled-coil structure flanked by regions that are not alpha-helical. A comparison of the primary sequence with the known sequences of other intermediate filament proteins reveals many common motifs. The 58-kD keratin is highly similar to other type II keratins and less similar to type I keratins and other intermediate filament proteins. The 58-kD keratin is regulated by retinoids in several tissues and is one of four keratins abundantly expressed in epidermal keratinocytes, where it may be important in maintaining structural integrity of the integument. A comparison of the keratin 5 sequence with coexpressed keratin 14 reveals an absence of sequence conservation in regulatory regions and suggests that common sequence elements may not be necessary for coordinate expression of type I and type II keratin partners. Interestingly, keratin 5 contains only one region weakly resembling the SV40 enhancer-like sequence found in some other keratins indicating that this sequence motif may not be necessary for regulation or abundant expression of all epidermal keratins.
人类皮肤中表达的 II 型角蛋白基因的序列:所有中间丝基因的结构保守性。
DOI: 10.1073/pnas.82.14.4683
发表时间: 1985
影响因子: 11.1
作者:
Tyner,AL;Eichman,MJ;Fuchs,E
通讯作者: Fuchs,E
维生素 A 协调控制人角质形成细胞中角蛋白基因的表达。
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Gilfix,BM;Eckert,RL
通讯作者: Eckert,RL
DOI: 10.1073/pnas.80.5.1194
发表时间: 1983-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
YOUNG, RA;DAVIS, RW
通讯作者: DAVIS, RW