| Title |
Analysis of mRNA expression and cloning of a novel plasma membrane Ca2+-ATPase splice variant in human heart
|
|---|---|
| Published in |
Molecular and Cellular Biochemistry, February 1996
|
| DOI | 10.1007/bf00229314 |
| Pubmed ID | |
| Authors |
Juan Santiago-García, Jaime Mas-Oliva, Dolores Saavedra, Angel Zarain-Herzberg |
| Abstract |
Four different plasma membrane Ca(2+)-ATPase (PMCA) genes and three sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA) genes have been previously cloned and characterized. In this study we have investigated the expression of the mRNA encoding the various PMCA and SERCA proteins in fetal and adult human heart and placenta by the reverse-transcriptase-polymerase-chain-reaction (RT-PCR) and cDNA cloning. We have found that PMCA1 and PMCA4 genes were expressed in 8-, 12- and 20-week fetal heart and in adult heart. PMCA2 gene was expressed at low levels in adult heart but was not detected in fetal heart. PMCA3 mRNA was not detected in the heart nor placenta. In contrast, the mRNA encoding SERCA2a, SERCA2b and SERCA3 were expressed in all cardiac developmental stages. Multiple alternatively spliced mRNA transcripts which differ at splice site A and B/C of the PMCA1, PMCA2 and PMCA4 genes were detected in the human heart. Interestingly, a novel tissue specific variant of the PMCA4 gene was detected in both fetal and adult human heart but not in placenta that accounts for about 30% of the total PMCA4 mRNA variant expression. DNA sequence analysis of this novel variant revealed that it corresponds to the equivalent of the PMCA1d variant and accordingly we have named it PMCA4d. We cloned and sequenced eight cDNA inserts encoding for the PMCA1 and PMCA4 variants from a fetal human heart cDNA library confirming that these are the two main PMCA genes expressed in cardiac muscle. |
Mendeley readers
The data shown below were compiled from readership statistics for 12 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | 8% |
| Unknown | 11 | 92% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Other | 2 | 17% |
| Student > Ph. D. Student | 2 | 17% |
| Professor | 2 | 17% |
| Researcher | 2 | 17% |
| Student > Master | 2 | 17% |
| Other | 1 | 8% |
| Unknown | 1 | 8% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 4 | 33% |
| Biochemistry, Genetics and Molecular Biology | 3 | 25% |
| Medicine and Dentistry | 2 | 17% |
| Neuroscience | 1 | 8% |
| Unknown | 2 | 17% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 August 2017.
All research outputs
#8,513,013
of 25,382,250 outputs
Outputs from Molecular and Cellular Biochemistry
#481
of 2,488 outputs
Outputs of similar age
#17,665
of 82,131 outputs
Outputs of similar age from Molecular and Cellular Biochemistry
#5
of 24 outputs
Altmetric has tracked 25,382,250 research outputs across all sources so far. This one is in the 43rd percentile – i.e., 43% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,488 research outputs from this source. They receive a mean Attention Score of 4.1. This one has gotten more attention than average, scoring higher than 50% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 82,131 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 18th percentile – i.e., 18% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 24 others from the same source and published within six weeks on either side of this one. This one is in the 8th percentile – i.e., 8% of its contemporaries scored the same or lower than it.