Thy-1 or CD90 (Cluster of Differentiation 90) is a 25–37 kDa heavily N-glycosylated, glycophosphatidylinositol (GPI) anchored conserved cell surface protein with a single V-like immunoglobulin domain, originally discovered as a thymocyte antigen. Thy-1 can be used as a marker for a variety of stem cells and for the axonal processes of mature neurons. Structural study of Thy-1 lead to the foundation of the Immunoglobulin superfamily, of which it is the smallest member, and led to some of the initial biochemical description and characterization of a vertebrate GPI anchor and also the first demonstration of tissue specific differential glycosylation.
The antigen Thy-1 was the first T cell marker to be identified. Thy-1 was discovered by Reif and Allen in 1964 during a search for heterologous antisera against mouse leukemia cells, and was demonstrated by them to be present on murine thymocytes, on T lymphocytes, and on neuronal cells. It was originally named theta (θ) antigen, then Thy-1 (THYmocyte differentiation antigen 1) due to its prior identification in thymocytes (precursors of T cells in the thymus). The human homolog was isolated in 1980 as a 25kDa protein (p25) of T-lymphoblastoid cell line MOLT-3 binding with anti-monkey-thymocyte antisera. The discovery of Thy-1 in mice and humans led to the subsequent discovery of many other T cell markers, which is very significant to the field of immunology since T cells (along with B cells) are the major cellular components of the adaptive immune response.
[Lox]
Uh, yeah, uh huh, yeah
Yeah, yeah, yeah, uh huh, yeah, yeah
It's another one
Uh huh, yeah, yeah
It's another one, and another one
You got me where you want me
You could listen to Levert while leaving the country
And then sweat it out when you feel comfy
Or play Gill to the minute that ou say you're hungry
Uh, you got me where you want me
You could listen to Levert while leaving the country
And then sweat it out when you're feeling comfy
Or play gill to the minute that you say you're hungry
Uh, you got me where you want me
You could listen to Levert while leaving the country
And then Sweat it out when your'e feeling comfy
Or play Gill to the minute that you say you're hungry
[LSG]
I know
You need
Love and understanding
Sometimes
Feel like
I can't give you more of my time
You keep on wanting me
To be there girl
But I can't be
Why you keep stressing me
When you know I'm doing my best
I keep on telling you
I do the best that I can do
How can I get through to you
Everything I do is for you
1 - You got me where you want me
Tell me what you need
Take me baby
Tell me what you want
Anywhere you wanna go is for me
You got me where you want me
I can't keep on going through these changes
The more you doubt me
You keep pusing me away girl
You keep on wanting more
I'm doing my best
I'm doing everything for you
Repeat 1
Girl, you got me yearning
Yearning to know what I'll do with love
Can you tell me what I'm doing
But I'm always saying you don't understand
I'll never leave you alone
Repeat 1
Repeat Lox