Sentence examples for been discovered it has from inspiring English sources

Although many putative heme transporters have been discovered, it has been challenging to prove that these proteins are directly involved with heme trafficking in vivo and to identify their heme binding domains.

This not only has information on dinosaurs that have been discovered, it has photographs of paleontological digs, the displays in America's various natural history museums, and even artist renderings of what these creatures may have looked like when they were alive.

In the four decades since the dead zone was discovered it has grown steadily.

As succinctly summed up by Eschenmoser "Origin of Life cannot be discovered; it has to be reinvented"12.

From the time a drug is discovered, it has up to 20 years of patent protection to reap profits.

As more and more genes are discovered, it has become possible to use this trick to create "expression profiles" of many tissues, showing which genes are active, and to what extent.

And ever since they were discovered, it has been clear that they are special.

Since miR-720 was discovered, it has been widely studied as a miRNA.

From the time that HIV was discovered, it has been accompanied with social response of fear, denial, stigma and discrimination.

Since BRI1 was discovered, it has been considered to have 25 LRRs with a 70-amino acid island flanking the 21st and 22nd LRR.

Because many different types of ATM mutations have been identified so far, and more probably remain to be discovered, it has been suggested that ATM mutations involved with increased risk of breast cancer among ATM heterozygotes might be of a different type from the ATM mutations found in most (although not all) AT patients [ 91, 92].