Evidence map›Paper›PMID 16698927›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

kappa-casein-deficient mice fail to lactate.

P Chandra Shekar, Sandeep Goel, S Deepa Selvi Rani, D Partha Sarathi, Jomini Liza Alex, Shashi Singh, Satish Kumar

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 70 citations in OpenAlex.

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  17. Targeted microRNA expression in dairy cattle directs production of β-lactoglobulin-free, high-casein milk.Proceedings of the National Academy of Sciences of the United States of America · 2012
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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.

P Chandra ShekarCentre for Cellular and Molecular Biology, Hyderabad 500007, India.
Sandeep Goel
S Deepa Selvi Rani
D Partha Sarathi
Jomini Liza Alex
Shashi Singh
Satish Kumar
Centre for Cellular and Molecular Biology · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acquisition of milk production capabilities by an ancestor of mammals is at the root of mammalian evolution. Milk casein micelles are a primary source of amino acids and calcium phosphate to neonates. To understand the role of kappa-casein in lactation, we have created and characterized a null mouse strain (Csnk-/-) lacking this gene. The mutant kappa-casein allele did not affect the expression of other milk proteins in Csnk-/- females. However, these females did not suckle their pups and failed to lactate because of destabilization of the micelles in the lumina of the mammary gland. Thus, kappa-casein is essential for lactation and, consequently, for the successful completion of the process of reproduction in mammals. In view of the extreme structural conservation of the casein locus, as well as the phenotype of Csnk-/- females, we propose that the organization of a functional kappa-casein gene would have been one of the critical events in the evolution of mammals. Further, kappa-casein variants are known to affect the industrial properties of milk in dairy animals. Given the expenses and the time scale of such experiments in livestock species, it is desirable to model the intended genetic modifications in mice first. The mouse strain that we have created would be a useful model to study the effect of kappa-casein variants on the properties of milk and/or milk products.

Indexed as

Gene Expression RegulationAllelesAnimalsCaseinsEvolution, MolecularFemaleGenetic VectorsLactationMiceMicellesMice, TransgenicMicroscopy, Atomic ForceModels, GeneticPhenotypeCaseinsMicelles

Identifiers

PMID16698927
PMCPMC1472419
OpenAlexW2099933310

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.