RRC ID 81650
Author Funakoshi T, Maeshima K, Yahata K, Sugano S, Imamoto F, Imamoto N.
Title Two distinct human POM121 genes: requirement for the formation of nuclear pore complexes.
Journal FEBS Lett
Abstract Pom121 is one of the integral membrane components of the nuclear pore complex (NPC) in vertebrate cells. Unlike rodent cells carrying a single POM121 gene, human cells possess multiple POM121 gene loci on chromosome 7q11.23, as a consequence of complex segmental-duplications in this region during human evolution. In HeLa cells, two "full-length" Pom121 are transcribed and translated by two distinct genetic loci. RNAi experiments showed that efficient depletion of both Pom121 proteins significantly reduces assembled NPCs on nuclear envelope. Pom121-depletion also induced clustering of NPCs, indicating its role on maintenance of NPC structure/organization.
Volume 581(25)
Pages 4910-6
Published 2007-10-16
DOI 10.1016/j.febslet.2007.09.021
PII S0014-5793(07)01003-4
PMID 17900573
MeSH 5' Flanking Region Base Sequence Cell Nucleus / ultrastructure Chromosome Mapping Cloning, Molecular Exons Gene Duplication* HeLa Cells Humans Membrane Glycoproteins / chemistry Membrane Glycoproteins / genetics* Membrane Glycoproteins / metabolism Molecular Sequence Data Nuclear Pore / ultrastructure* Protein Structure, Tertiary RNA Interference
Resource
DNA material pKS-POM121A-Venus (RDB20246) pKS-POM121NC-Venus (RDB20247)