ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR

The nuclear basket (NB) scaffold, a fibrillar structure anchored to the nuclear pore complex (NPC), is regarded as constructed of polypeptides of the coiled-coil dominated protein TPR to which other proteins can bind without contributing to the NB’s structural integrity. Here we report vertebrate pr...

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Main Authors: Philip Gunkel, Haruki Iino, Sandra Krull, Volker C. Cordes
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/10/8/1937
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author Philip Gunkel
Haruki Iino
Sandra Krull
Volker C. Cordes
author_facet Philip Gunkel
Haruki Iino
Sandra Krull
Volker C. Cordes
author_sort Philip Gunkel
collection DOAJ
description The nuclear basket (NB) scaffold, a fibrillar structure anchored to the nuclear pore complex (NPC), is regarded as constructed of polypeptides of the coiled-coil dominated protein TPR to which other proteins can bind without contributing to the NB’s structural integrity. Here we report vertebrate protein ZC3HC1 as a novel inherent constituent of the NB, common at the nuclear envelopes (NE) of proliferating and non-dividing, terminally differentiated cells of different morphogenetic origin. Formerly described as a protein of other functions, we instead present the NB component ZC3HC1 as a protein required for enabling distinct amounts of TPR to occur NB-appended, with such ZC3HC1-dependency applying to about half the total amount of TPR at the NEs of different somatic cell types. Furthermore, pointing to an NB structure more complex than previously anticipated, we discuss how ZC3HC1 and the ZC3HC1-dependent TPR polypeptides could enlarge the NB’s functional repertoire.
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spelling doaj.art-34e5526b45684203bb137a53d7c704f72023-11-22T07:09:26ZengMDPI AGCells2073-44092021-07-01108193710.3390/cells10081937ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPRPhilip Gunkel0Haruki Iino1Sandra Krull2Volker C. Cordes3Max Planck Institute for Biophysical Chemistry, D-37077 Göttingen, GermanyMax Planck Institute for Biophysical Chemistry, D-37077 Göttingen, GermanyMax Planck Institute for Biophysical Chemistry, D-37077 Göttingen, GermanyMax Planck Institute for Biophysical Chemistry, D-37077 Göttingen, GermanyThe nuclear basket (NB) scaffold, a fibrillar structure anchored to the nuclear pore complex (NPC), is regarded as constructed of polypeptides of the coiled-coil dominated protein TPR to which other proteins can bind without contributing to the NB’s structural integrity. Here we report vertebrate protein ZC3HC1 as a novel inherent constituent of the NB, common at the nuclear envelopes (NE) of proliferating and non-dividing, terminally differentiated cells of different morphogenetic origin. Formerly described as a protein of other functions, we instead present the NB component ZC3HC1 as a protein required for enabling distinct amounts of TPR to occur NB-appended, with such ZC3HC1-dependency applying to about half the total amount of TPR at the NEs of different somatic cell types. Furthermore, pointing to an NB structure more complex than previously anticipated, we discuss how ZC3HC1 and the ZC3HC1-dependent TPR polypeptides could enlarge the NB’s functional repertoire.https://www.mdpi.com/2073-4409/10/8/1937NIPAnuclear basketnuclear interacting partner of ALKnuclear pore complexnucleoprotein TPRtranslocated promoter region
spellingShingle Philip Gunkel
Haruki Iino
Sandra Krull
Volker C. Cordes
ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
Cells
NIPA
nuclear basket
nuclear interacting partner of ALK
nuclear pore complex
nucleoprotein TPR
translocated promoter region
title ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
title_full ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
title_fullStr ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
title_full_unstemmed ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
title_short ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR
title_sort zc3hc1 is a novel inherent component of the nuclear basket resident in a state of reciprocal dependence with tpr
topic NIPA
nuclear basket
nuclear interacting partner of ALK
nuclear pore complex
nucleoprotein TPR
translocated promoter region
url https://www.mdpi.com/2073-4409/10/8/1937
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