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3TYY

Crystal Structure of Human Lamin-B1 Coil 2 Segment

Replaces:  3MOV
Summary for 3TYY
Entry DOI10.2210/pdb3tyy/pdb
DescriptorLamin-B1 (2 entities in total)
Functional Keywordslamin-b1, lmnb1, b-type lamins, intermediate filament (if), membrane, nucleus, structural genomics consortium, sgc, structural protein
Biological sourceHomo sapiens (human)
Cellular locationNucleus inner membrane; Lipid-anchor; Nucleoplasmic side: P20700
Total number of polymer chains2
Total formula weight23141.98
Authors
Primary citationRuan, J.,Xu, C.,Bian, C.,Lam, R.,Wang, J.P.,Kania, J.,Min, J.,Zang, J.
Crystal structures of the coil 2B fragment and the globular tail domain of human lamin B1.
Febs Lett., 586:314-318, 2012
Cited by
PubMed Abstract: We present here the crystal structures of human lamin B1 globular tail domain and coiled 2B domain, which adopt similar folds to Ig-like domain and coiled-coil domain of lamin A, respectively. Despite the overall similarity, we found an extra intermolecular disulfide bond in the lamin B1 coil 2B domain, which does not exist in lamin A/C. In addition, the structural analysis indicates that interactions at the lamin B1 homodimer interface are quite different from those of lamin A/C. Thus our research not only reveals the diversely formed homodimers among lamin family members, but also sheds light on understanding the important roles of lamin B1 in forming the nuclear lamina matrix.
PubMed: 22265972
DOI: 10.1016/j.febslet.2012.01.007
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.399 Å)
Structure validation

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