Evidence map›Paper›PMID 18699990›Full record

ArticleBMC cancer2008

Tetratricopeptide repeat domain 9A is an interacting protein for tropomyosin Tm5NM-1.

Shenglan Cao, Gay Hui Ho, Valerie C L Lin

Abstract read
In one paragraph

Article in BMC cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. [A pan-cancer analysis of TTC9A expression level and its correlation with prognosis and immune microenvironment].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Shenglan CaoSchool of Biological Sciences, Nanyang Technological University, Singapore. ashleycsl@gmail.com
Gay Hui Ho
Valerie C L Lin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTetratricopeptide repeat domain 9A (TTC9A) protein is a recently identified protein which contains three tetratricopeptide repeats (TPRs) on its C-terminus. In our previous studies, we have shown that TTC9A was a hormonally-regulated gene in breast cancer cells. In this study, we found that TTC9A was over-expressed in breast cancer tissues compared with the adjacent controls (P < 0.00001), suggesting it might be involved in the breast cancer development process. The aim of the current study was to further elucidate the function of TTC9A.

methodsBreast samples from 25 patients including the malignant breast tissues and the adjacent normal tissues were processed for Southern blot analysis. Yeast-two-hybrid assay, GST pull-down assay and co-immunoprecipitation were used to identify and verify the interaction between TTC9A and other proteins.

resultsTropomyosin Tm5NM-1 was identified as one of the TTC9A partner proteins. The interaction between TTC9A and Tm5NM-1 was further confirmed by GST pull-down assay and co-immunoprecipitation in mammalian cells. TTC9A domains required for the interaction were also characterized in this study. The results suggested that the first TPR domain and the linker fragment between the first two TPR domains of TTC9A were important for the interaction with Tm5NM-1 and the second and the third TPR might play an inhibitory role.

conclusionSince the primary function of tropomyosin is to stabilize actin filament, its interaction with TTC9A may play a role in cell shape and motility. In our previous results, we have found that progesterone-induced TTC9A expression was associated with increased cell motility and cell spreading. We speculate that TTC9A acts as a chaperone protein to facilitate the function of tropomyosins in stabilizing microfilament and it may play a role in cancer cell invasion and metastasis.

Indexed as

AnimalsBreast NeoplasmsChlorocebus aethiopsCOS CellsGene Expression Regulation, NeoplasticHumansNeoplasm InvasivenessNeoplasm MetastasisNerve Tissue ProteinsPeptidesProgesteroneProtein Structure, TertiaryTropomyosinTwo-Hybrid System TechniquesNerve Tissue ProteinsPeptidesProgesteroneTPM3 protein, humanTropomyosinTTC9 protein, human

Identifiers

PMID18699990
PMCPMC2538545

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.