Structural basis for heteromeric assembly and perinuclear organization of keratin filaments.
Structural basis for heteromeric assembly and perinuclear organization of keratin filaments.
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DOI:
10.1038/nsmb.2330
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发表时间:
2012-06-17
影响因子:
16.8
通讯作者:
Coulombe, Pierre A.
中科院分区:
文献类型:
--
作者:
Lee, Chang-Hun;Kim, Min-Sung;Chung, Byung Min;Leahy, Daniel J.;Coulombe, Pierre A.
There is as yet no high-resolution data regarding the structure and organization of keratin intermediate filaments, which are obligate heteropolymers providing vital mechanical support in epithelia. We report the crystal structure of interacting 2B regions from the central coiled-coil domains of keratins 5 and 14 (K5 and K14), expressed in progenitor keratinocytes of epidermis. The interface of the K5–K14 coiled-coil heterodimer has asymmetric salt bridges, hydrogen bonds and hydrophobic contacts, and its surface exhibits a notable charge polarization. A trans-dimer homotypic disulfide bond involving Cys367 in K14's stutter region occurs in the crystal and in skin keratinocytes, where it is concentrated in a keratin filament cage enveloping the nucleus. We show that K14-Cys367 impacts nuclear shape in cultured keratinocytes and that mouse epidermal keratinocytes lacking K14 show aberrations in nuclear structure, highlighting a new function for keratin filaments.
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影响因子:
64.8
作者:
Kim, S;Wong, P;Coulombe, PA
通讯作者:
Coulombe, PA
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1083/jcb.110.4.1199
发表时间:
1990-04
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hatzfeld M;Weber K
通讯作者:
Weber K
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
14.9
作者:
Davis IW;Leaver-Fay A;Chen VB;Block JN;Kapral GJ;Wang X;Murray LW;Arendall WB 3rd;Snoeyink J;Richardson JS;Richardson DC
通讯作者:
Richardson DC