Evidence map›Paper›PMID 11178108›Full record

ArticleBMC genetics2001

Chromosomal mapping, gene structure and characterization of the human and murine RAB27B gene.

J S Ramalho, T Tolmachova, A N Hume, A McGuigan, C Y Gregory-Evans, C Huxley, M C Seabra

Open access · diamondAbstract read
In one paragraph

Article in BMC genetics, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 57 citations in OpenAlex.

  1. Rab27: Molecular switch of tumor exosome secretion (Review).International journal of molecular medicine · 2026
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  12. Estrogen regulates vesicle trafficking gene expression in EFF-3, EFM-19 and MCF-7 breast cancer cells.International journal of clinical and experimental pathology · 2009
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  17. A general role for Rab27a in secretory cells.Molecular biology of the cell · 2004
    Article
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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

7 authors at 1 institution in 1 country.

J S RamalhoCell and Molecular Biology, Division of Biomedical Sciences, Imperial College School of Medicine, Sir Alexander Fleming Building, London SW7 2AZ, UK. jose.ramalho@ic.ac.uk
T Tolmachova
A N Hume
A McGuigan
C Y Gregory-Evans
C Huxley
M C Seabra
Imperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRab GTPases are regulators of intracellular membrane traffic. The Rab27 subfamily consists of Rab27a and Rab27b. Rab27a has been recently implicated in Griscelli Disease, a disease combining partial albinism with severe immunodeficiency. Rab27a plays a key role in the function of lysosomal-like organelles such as melanosomes in melanocytes and lytic granules in cytotoxic T lymphocytes. Little is known about Rab27b.

resultsThe human RAB27B gene is organised in six exons, spanning about 69 kb in the chromosome 18q21.1 region. Exon 1 is non-coding and is separated from the others by 49 kb of DNA and exon 6 contains a long 3' untranslated sequence (6.4 kb). The mouse Rab27b cDNA shows 95% identity with the human cDNA at the protein level and maps to mouse chromosome 18. The mouse mRNA was detected in stomach, large intestine, spleen and eye by RT-PCR, and in heart, brain, spleen and kidney by Northern blot. Transient over-expression of EGF-Rab27b fusion protein in cultured melanocytes revealed that Rab27b is associated with melanosomes, as observed for EGF-Rab27a.

conclusionsOur results indicate that the Rab27 subfamily of Ras-like GTPases is highly conserved in mammals. There is high degree of conservation in sequence and gene structure between RAB27A and RAB27B genes. Exogenous expression of Rab27b in melanocytes results in melanosomal association as observed for Rab27a, suggesting the two Rab27 proteins are functional homologues. As with RAB27A in Griscelli Disease, RAB27B may be also associated with human disease mapping to chromosome 18.

Indexed as

Amino Acid SequenceAnimalsCell LineChromosome MappingCloning, MolecularGene ComponentsHumansMelanocytesMiceMolecular Sequence Datarab27 GTP-Binding Proteinsrab GTP-Binding ProteinsRNA, MessengerSequence AlignmentTissue DistributionRAB27A protein, humanRab27a protein, mouseRab27B protein, humanRab27b protein, mouserab27 GTP-Binding Proteinsrab GTP-Binding ProteinsRNA, Messenger

Identifiers

PMID11178108
PMCPMC29082
OpenAlexW2151797498

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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.