Evidence map›Paper›PMID 9632764›Full record

ArticleMolecular and cellular biology1998

Coactivation by OCA-B: definition of critical regions and synergism with general cofactors.

Y Luo, H Ge, S Stevens, H Xiao, R G Roeder

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 45 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Y LuoLaboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York, New York 10021-6399, USA.
H Ge
S Stevens
H Xiao
R G Roeder
Rockefeller University · US

Funding

BIOCHEMICAL MECHANISMS OF CYCLOPHOSPHAMIDE TOXICITYR01CA043567 · NCI · ROSWELL PARK CANCER INSTITUTE · PI GURTOO, HIRA L · 1987 to 1989
–
NCI NIH HHS CA43567
6 · The paper itself

Abstract

Molecular dissection of the B-cell-specific transcription coactivator OCA-B has revealed distinct regions important, respectively, for recruitment to immunoglobulin promoters through interaction with octamer-bound Oct-1 and for subsequent coactivator function. Further analysis of general coactivator requirements showed that selective removal of PC4 from the essential USA fraction severely impairs Oct-1 and OCA-B function in a cell-free system reconstituted with partially purified factors. Full activity can be restored by the combined action of recombinant PC4 and the PC4-depleted USA fraction, thus suggesting a joint requirement for PC4 and another, USA-derived component(s) for optimal function of Oct-1/OCA-B in the reconstituted system. Indeed, USA-derived PC2 was found to act synergistically with PC4 in reproducing the function of intact USA in the assay system. Consistent with the requirement for PC4 in the reconstituted system, OCA-B was found to interact directly with PC4. Surprisingly, however, removal of PC4 from the unfractionated nuclear extract has no detrimental effect on OCA-B/Oct-1-dependent transcription. These results lead to a general model for the synergistic function of activation domains in Oct-1 and OCA-B (mediated by the combined action of the multiple USA components) and, further, suggest a functional redundancy in general coactivators.

Indexed as

Repressor ProteinsTranscriptional ActivationAmino Acid SequenceBinding SitesB-LymphocytesCell ExtractsHeLa CellsHumansImmediate-Early ProteinsMembrane ProteinsMolecular Sequence DataRecombinant Fusion ProteinsTrans-ActivatorsTranscription FactorsTranscription, GeneticCell ExtractsIFRD2 protein, humanImmediate-Early ProteinsMembrane ProteinsPOU2AF1 protein, humanRecombinant Fusion ProteinsRepressor ProteinsTrans-ActivatorsTranscription Factors

Identifiers

PMID9632764
PMCPMC108964
OpenAlexW2160290612

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.