He won the Nobel Prize for helping discover the structure of human DNA – but disgraced scientist James Watson has hit a new low in his tumultuous career.

The New York-based Cold Spring Harbor Laboratory (CSHL) said last week that it will be revoking all titles and honors bestowed on the 90-year-old Watson, who directed the lab for decades until a 2007 Sunday Times article revealed his views on Africans that many found to be racist.

In the article, the geneticist said he was “inherently gloomy about the prospect of Africa” because he believed intelligence level of the native population was inherently lower than that of Europeans – due to genetics.

“All our social policies are based on the fact that [African] intelligence is the same as ours, whereas all the testing says, not really,” Watson said at the time.

He also said that while he wished the races were equal, “people who have to deal with black employees find this not true.”

When the article was published, the CSHL removed Watson as director. He apologized at the time, but in the recent PBS documentary “American Masters: Decoding Watson,” he said his views on race have not changed “at all.”

The CSHL responded by cutting ties with the DNA pioneer, revoking his titles of chancellor emeritus, honorary trustee and Oliver R. Grace professor emeritus. The laboratory also released a statement rejecting Watson’s “unsubstantiated and reckless personal opinions” on genetics.

“Dr. Watson’s statements are reprehensible, unsupported by science, and in no way represent the views of CSHL, its trustees, faculty, staff, or students,” the statement reads. “The laboratory condemns the misuse of science to justify prejudice.”

Watson achieved international fame in 1953 after co-authoring an academic paper outlining the double helix structure of the DNA molecule. Along with Francis Crick and Maurice Wilkins, Watson won the 1962 Nobel Prize in Physiology or Medicine.

But Watson became a pariah in the scientific community when his controversial views came to light. In 2014, he became the first living Nobel Prize winner to sell his medal, claiming he had been labeled a “nonperson” and had lost much of his income.

Watson’s family told the New York Times that he was unable to respond to the PBS interview, as he is under medical care after a car accident last October.