Conservative MP for Battersea Jane Ellison has said she will vote to trigger Article 50 when the time comes.

MPs are expected to vote on triggering the bill that will formally mark Britain’s exit from the European Union on February 1.

An overwhelming majority of Ms Ellison’s constituents (75 per cent) voted to remain in the referendum.

The Battersea MP said: "I was elected in 2015 on a manifesto commitment to hold an in/out referendum on EU membership, and to respect the national result.

"Had it been different I would have expected the same of the Leave side.

"I will therefore vote for Article 50 to be triggered and work constructively to get the best outcome for my constituents and the rest of the country as we leave the EU."

The Government was forced to draw up a bill after losing an appeal at the Supreme Court on Tuesday January 24 when judges ruled Parliament must give permission to start the process to break from the EU.

PM Theresa May has said this will not interfere with her promise to trigger Article 50 no later than the end of March, which would mean Britain should officially leave the EU no later than April 2019.

Many MPs want clarification on what the Brexit bill will entail before voting to exit as the current bill was just 130 words long and does not include any specifics terms.  

One of the main areas of contention is whether Britain will remain in the single market or not, as the EU is not likely to allow access to it without the free movement of people.

Ms Ellison said she supported the Prime Minister’s "vision for a truly global Britain" and would ideally like a free trade agreement with the single market, while acknowledging that this might not be possible.

While the Lib Dems and Scottish National Party are mostly opposed to triggering Article 50, Labour Leader Jeremy Corbyn has imposed a three-line whip on his MPS to back the bill.

He has also suggested he would fire shadow ministers if they refuse to do so.

Speaking on ITV’s Peston on Sunday Mr Corbyn said: "It’s obviously impossible to carry on being in the shadow cabinet if you vote against a decision made after a very frank and long discussion of the shadow cabinet earlier this week."

Two shadow ministers have quit the front benches as a result.

Shadow Welsh secretary Jo Stevens quit and intends to defy Corbyn’s instruction and vote against triggering Article 50.

Early years minister Tulip Siddiq also quit the front benches.

She said: "Leaving the European Union presents enormous uncertainty for my constituents, with most believing that the disadvantages of leaving outweigh any potential benefits.

"Many still don’t have firm guarantees that their residential rights will be protected after Brexit."

At the moment there are 85 MPs who intend to block Brexit.

Ken Clarke, who represents Rushcliffe, is the only Tory to indicate he will vote to block Article 50 being triggered.