X

Forgot your Password

If you have forgotten your password, please enter your account email below and we will reset your password and email you the new password.

X

Login to SciCrunch

X

Register an Account

Delete Saved Search

Are you sure you want to delete this saved search?

NO

NIF LinkOut Portal

FILTERS

A new isoform of human myosin phosphatase targeting/regulatory subunit (MYPT2): cDNA cloning, tissue expression, and chromosomal mapping.

Authors:
Fujioka M, Takahashi N, Odai H, Araki S, Ichikawa K, Feng J, Nakamura M, Kaibuchi K, Hartshorne DJ, Nakano T, Ito M
Affiliation:
Journal:
Genomics

Abstract

Myosin phosphatase target subunit 1 (MYPT1), a subunit of myosin phosphatase, plays a pivotal role in the regulation of myosin phosphatase activity. Here we have cloned a novel isoform of MYPT1, termed MYPT2, from a human brain cDNA library screened with a cDNA fragment of rat MYPT1. Overlapping clones indicated an open reading frame of 3763 nucleotides and a predicted polypeptide of mass 110,398. Ankyrin repeats and leucine zipper motifs were identified for the sequences 57-316 and 956-982, respectively. Overall, the deduced amino acid sequence of MYPT2 was 61% identical to MYPT1. MYPT2 gene is transcribed abundantly in heart and skeletal muscle, while Western blots using an antibody specific for MYPT2 showed exclusive expression of MYPT2 in heart and brain. A recombinant of the N-terminal two-thirds of MYPT2 bound to the catalytic subunit of type 1 phosphatase (delta isoform) and increased activity toward phosphorylated myosin light chain. In situ hybridization localized the human MYPT2 gene on chromosome 1q32.1, compared to the chromosomal location 12q15-q21-2 for MYPT1. It is suggested that the products of the two gene families of myosin phosphatase target subunit may be localized differently among various tissues.

  1. Welcome

    Welcome to NIF. Explore available research resources: data, tools and materials, from across the web

  2. Community Resources

    Search for resources specially selected for NIF community

  3. More Resources

    Search across hundreds of additional biomedical databases

  4. Literature

    Search Pub Med abstracts and full text from PubMed Central

  5. Insert your Query

    Enter your search terms here and hit return. Search results for the selected tab will be returned.

  6. Join the Community

    Click here to login or register and join this community.

  7. Categories

    Narrow your search by selecting a category. For additional help in searching, view our tutorials.

  8. Query Info

    Displays the total number of search results. Provides additional information on search terms, e.g., automated query expansions, and any included categories or facets. Expansions, filters and facets can be removed by clicking on the X. Clicking on the + restores them.

  9. Search Results

    Displays individual records and a brief description. Click on the icons below each record to explore additional display options.

X