Examples of proteins with primary tertiary structure?

[wertyusa]

Hello!
Can someone give me any examples of proteins with primary structure?Does proteins like that exist into the organisms?Also I don't know examples for proteins with tertiary structure so I'd like to learn some.
I know that the keratin is a protein with secondary structure and hemoglobin is a protein with quaternary structure, but what about proteins with primary and tertiary structure(I think that the elastin is an example of a protein with tertiary structure, but I'm not sure).
So please help me, thanks!
Regards,

[mith]

My question to you is, are there any proteins without primary structure?

[MrMistery]

all proteins have a primary, a secondary and a tertiary structure. Some(not all) have a quaternary structure. you might want to look into what the terms mean.