The 100-kDa chain of nicein/kalinin is a laminin B2 chain variant.

The 100-kDa chain of nicein/kalinin is a laminin B2 chain variant.
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Nicein/kalinin 的 100 kDa 链是层粘连蛋白 B2 链变体。

DOI:
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发表时间:
1994
期刊:
European Journal of Biochemistry
影响因子:
--
通讯作者:
J. Ortonne
J. Ortonne
中科院分区:
--
文献类型:
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作者:
J. Vailly;Patrick Verrando;M. Champliaud;Donald R. Gerecke;D. W. Wagman;Christian Baudoin;Daniel Aberdam;R. Burgeson;Eugene A. Bauer;J. Ortonne

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我们已经分离了基底膜成分Nicein,并使用电子显微镜进行了旋转阴影分析,显示存在两种形式的蛋白质(I和II)。对编码该蛋白100 kDa链的cDNA进行了分子克隆,结果表明该序列与最近发现的基底膜成分Kalinin的105-155 kDa亚基的序列一致。这些数据表明,Nicein和Kalinin含有相同的链。从105 kDa Kalinin链N端获得的开放阅读框长度(约5200个核苷酸)和氨基酸序列表明存在前体多肽。这种未成熟的多肽可能与旋转阴影观察到的I型有关,而成熟的多肽与II型有关。值得注意的是,Nicein/Kalinin亚单位与人层粘连蛋白的B2链有离散的序列相似之处,但在结构域III中发生了切割,从最终产物中消除了结构域IV和V。该亚基的序列与B2t几乎相同,B2t是最近发现的一种多肽,被认为与一种新的层粘连蛋白变异体有关。由于Nicein/Kalinin在严重的遗传性皮肤病Herlitz交界性大疱性表皮松解症中表达明显受损,这种组织限制性的层粘连蛋白变异体的作用和结构对于理解表皮-真皮粘连至关重要。
We have isolated the basement membrane component nicein and performed rotary-shadow analyses using electron microscopy that showed the presence of two forms (I and II) of the protein. Molecular cloning of the cDNA that codes for the 100-kDa chain of the protein revealed that the sequence matches those independently identified for the 105-155-kDa subunit of kalinin, a recently identified basement membrane component. These data demonstrate that nicein and kalinin contain an identical chain. The length of the open reading frame in the cDNA (approximately 5200 nucleotides) and amino acid sequence obtained from the N-terminus of the 105-kDa kalinin chain showed the occurrence of a precursor polypeptide. This immature polypeptide is probably related to form I, observed by rotary shadowing, while the mature form is related to form II. It is noteworthy that nicein/kalinin subunits share discrete sequence similarities with the B2 chain of human laminin, but with a cleavage occurring within domain III that eliminates domains IV and V from the final product. The sequence of this subunit is nearly identical to that of B2t, a recently described polypeptide supposed to be related to a new laminin variant. Since nicein/kalinin expression is specifically impaired in the severe genodermatosis Herlitz junctional epidermolysis bullosa, the role and structure of this tissue-restricted laminin variant is crucial for the understanding of epidermal-dermal adhesion.
DOI: 10.1016/s0021-9258(18)61070-1
发表时间: 1987-07
期刊: The Journal of biological chemistry
影响因子: --
作者:
P. Matsudaira
通讯作者: P. Matsudaira
基底膜蛋白 Kalinin 和 Nicein 在结构和免疫学上是相同的。
DOI: --
发表时间: 1993
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
作者:
Marinkovich,MP;Verrando,P;Keene,DR;Meneguzzi,G;Lunstrum,GP;Ortonne,JP;Burgeson,RE
通讯作者: Burgeson,RE
DOI: 10.1073/pnas.85.23.8998
发表时间: 1988-12-01
影响因子: 11.1
作者:
FROHMAN, MA;DUSH, MK;MARTIN, GR
通讯作者: MARTIN, GR
锚定丝蛋白加里宁是作为高分子量前体合成和分泌的。
DOI: --
发表时间: 1992
期刊: The Journal of biological chemistry
影响因子: --
作者:
Marinkovich,MP;Lunstrum,GP;Burgeson,RE
通讯作者: Burgeson,RE