ANOTHER INDIAN SCIENTIST.....II

DM and others - what's your view ?

HM Krishnamurthy is from Indian Institute of Science, Yale (worked with Nobel laureate Tom Steitz and Alan Wycoff, a pioneer in X-ray crystal structure) and Columbia Universities. Krishna murthy did not acceed to fraudulent charges.
What happened ? Genuine error /honest mistake ?? http://network.nature.com/groups/natureindia/forum/topics/6200?page=7?

http://www.nature.com/news/2009/091222/full/462970a.html
Fraud rocks protein community




University finds that researcher falsified data supporting 11 protein structures.








Brendan Borrell



















The first of the protein structures to be disputed, that for human C3b.Ref. 10The
finding by a university misconduct investigation that a
crystallographer "more likely than not" faked almost a dozen protein
structures has left the field in shock. The fraud is the largest ever in
protein crystallography. The disputed structures had important
implications for discovering drugs against dengue virus and for
understanding the human immune system.

"It's massive," protein crystallographer Wayne Hendrickson of
Columbia University in New York says of the investigation's conclusion.
"It's the worst possible thing."

In a report released earlier this month, the University of Alabama
at Birmingham concluded that H. M. Krishna Murthy acted alone in
fabricating and falsifying results that appeared in ten papers^{1,2,3,4,5,6,7,8,9,10} published during the past decade. The disputed papers have been cited more than 450 times.

Murthy denies any wrongdoing. Girish Kotwal, a co-author of Murthy's
who was suspended by the University of Cape Town, South Africa, in 2006
owing to charges of professional misconduct (see Nature doi:10.1038/news060703-13; 2006)
and now runs Kotwal Bioconsulting in Louisville, Kentucky, says that
Murthy "feels defenceless and unfairly treated by some in the
crystallography field and his institution". Kotwal sent Nature
a statement that he says was e-mailed to him from Murthy indicating
that Murthy dis­agrees with the findings of the committee and stands "by
all of the reported results in these papers, as well as the
experimental origin of the underlying structures".

But for the investigation, Richard Marchase, the university's
vice-president of research, says that Murthy did not retain a lawyer and
"was not able to produce any compelling evidence as to how he arrived
at the structures".

All of the disputed structures had been deposited in the Protein
Data Bank (PBD). So far, only the dengue virus NS3 serine protease has
been both removed from the PDB and retracted by The Journal of Biological Chemistry, where it was first published in 1999 (ref. ¹).
The results in that paper sent the hunt for drugs against this protease
down a blind alley. Stanley Watowich, a virus expert at the University
of Texas Medical Branch in Galveston, says that two of Murthy's
structures^1,3,4
were among 14 included in a virtual dengue drug-screening project run
over the past year. This modelled how candidate molecules would interact
with dengue proteins, using IBM's World Community Grid — a public
computing network set up to harness unused computer time for projects of
benefit to humanity. "Screening against the Murthy structures took
about two months," says Watowich, "and it is unfortunate that this time
could not have been more productively spent."

Murthy began his postdoctoral training in the art of protein
crystallography — growing crystals and diffracting X-rays through them
for clues to structure — as a postdoc at Yale University in New Haven,
Connecticut, in 1981. There, he worked in the lab of Thomas Steitz, a
crystallographer who this year shared the Nobel Prize in Chemistry for
his work on the structure of the ribosome. Murthy joined Hendrickson's
lab in 1985, and struck the senior scientist as being a "very solid guy"
who had some bad luck. "He grew his crystals, went to the synchrotron,
and they didn't diffract very well so he didn't have any fantastic
accomplishments out of this," Hendrickson says. He adds that he believes
that Murthy did some genuine work in his lab.

Murthy arrived at Alabama in July 1998 to take up a position as a
research assistant professor at the Center for Biophysical Sciences and
Engineering. The first questions about his work arose with the October
2006 publication in Nature of the structure of
the human C3b complement-system component, part of the cascade of
immune-system proteins that destroys invading cells¹⁰.
A number of groups had been pursuing the structure, and the journal
published Murthy's paper alongside similar papers from Bert Janssen at
Utrecht University in the Netherlands and his co-workers, and a group
from Genentech in South San Francisco^11,12.

When the structures were deposited in the PDB, Janssen immediately
noticed discrepancies between Murthy's and his own, including large
'gaps' in the lattice that were unusual in such a well resolved and
ordered structure. Janssen and his supervisor, Piet Gros, enlisted two
well known crystallographers, Randy Read of the University of Cambridge,
UK, and Axel Brünger of Stanford University, California, to examine it.
They agreed that Murthy's structure seemed to be fake. The group sent a
brief communication to Nature in December 2006 questioning the structure¹³ and forwarded their concerns to the University of Alabama.

In January 2007, the University of Alabama began a two-year
investigation, which reported earlier this month that Murthy had acted
alone in fabricating that structure and ten others. How Murthy
fabricated data is unclear, but one method he might have used involves
grafting the sequences of target proteins onto structures for similar
proteins, then using algorithms to back-calculate diffraction
intensities, adding realistic errors along the way.





The PDB says it will remove the other ten structures only when
editors at the journals in which they were originally published or the
authors themselves retract them. Until Murthy's case came along, it had
never removed structures from its database for reasons of misconduct.

Shortly after the publication of their Nature
correspondence, Read and Brünger formed a validation task force at the
PDB to provide an automated and confidential means of verifying
structures during peer review. "With this validation," Brünger says,
"this information will be given to the reviewer and if there are any
questions one can go back and request the data." The next disputed
protein structure may not take so long to uncover.

this is old news hot-dog

apologies for messing up the formatting - sorry too long !

doofus_maximus wrote:this is old news hot-dog

True - but could it be a genuine error/ honest mistake?

One might as well do the experiment and provide the observed data instead of indulging in highly cumbersome tedious fabrications that would taken a very long time, i should think