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Cited by 819

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Characterization of a cis-Golgi matrix protein, GM130.

Open access
Nakamura, N, Rabouille, C, Watson, R, Nilsson, T, Hui, N, Slusarewicz, P, Kreis, T E, Warren, G·1995·The Journal of cell biology

Abstract

Antisera raised to a detergent- and salt-resistant matrix fraction from rat liver Golgi stacks were used to screen an expression library from rat liver cDNA. A full-length clone was obtained encoding a protein of 130 kD (termed GM130), the COOH-terminal domain of which was highly homologous to a Golgi human auto-antigen, golgin-95 (Fritzler et al., 1993). Biochemical data showed that GM130 is a peripheral cytoplasmic protein that is tightly bound to Golgi membranes and part of a larger oligomeric complex. Predictions from the protein sequence suggest that GM130 is an extended rod-like protein with coiled-coil domains. Immunofluorescence microscopy showed partial overlap with medial- and trans-Golgi markers but almost complete overlap with the cis-Golgi network (CGN) marker, syntaxin5. Immunoelectron microscopy confirmed this location showing that most of the GM130 was located in the CGN and in one or two cisternae on the cis-side of the Golgi stack. GM130 was not re-distributed to the ER in the presence of brefeldin A but maintained its overlap with syntaxin5 and a partial overlap with the ER-Golgi intermediate compartment marker, p53. Together these results suggest that GM130 is part of a cis-Golgi matrix and has a role in maintaining cis-Golgi structure.

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Metadata

Authors
Nakamura, N., Rabouille, C., Watson, R., Nilsson, T., Hui, N., Slusarewicz, P., Kreis, T. E., & Warren, G.
Venue
The Journal of cell biology
Published
1995-12-15
Volume
131
Issue
6
Pages
1715-1726
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2131879548
Cited by
819
References
2
FWCI
6.03
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Characterization of a cis-Golgi matrix protein, GM130. https://app.cochat.ai/papers/10.1083/jcb.131.6.1715
The paper
Nakamura, N., Rabouille, C., Watson, R., Nilsson, T., Hui, N., Slusarewicz, P., Kreis, T. E., & Warren, G. (1995). Characterization of a cis-Golgi matrix protein, GM130. The Journal of cell biology. https://doi.org/10.1083/jcb.131.6.1715

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