Hi Sunandan, If you make a dummy model that covers the region that you want to cut out then you can use map_box to cut out that part of the density. All the best, Tom T On Tue, May 14, 2019 at 9:02 AM Sunandan Mukherjee wrote:

Hi,

I want to build an RNA model using cryo-EM density. The structure is of a protein-RNA complex and the map consists regions with protein subunits. Is it possible to separate the portion of the map which represents the RNA only?

Thanks and regards,

Sunandan

-- Sunandan Mukherjee (PhD) Research Assistant Laboratory of Bioinformatics and Protein Engineering International Institute of Molecular and Cell Biology (IIMCB) ul. Ks. Trojdena 4, 02-109 ​Warsaw, Poland

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-- Thomas C Terwilliger Laboratory Fellow, Los Alamos National Laboratory Senior Scientist, New Mexico Consortium 100 Entrada Dr, Los Alamos, NM 87544 Email: [email protected] Tel: 505-431-0010