Genetics
Human factor XIII consist of A and B subunits. A subunit gene is F13A1. It is on the chromosome 6 at the position 6p24–25. It spans over 160 kbp, has 14 introns and 15 exons. Its mRNA is 3.9 kbp. It has a 5 UTR of 84 bp and a 3 UTR of 1.6 kbp. F13A1 exon(s)
1 code 5 UTR
2 code activation peptide
2–4 code β-sandwich
4–12 code catalytic domain
12–13 code β-barrel 1
13–15 code β-barrel 2B subunit gene is F13B. It is on the chromosome 1 at the position 1q31–32.1. It spans 28 kpb, has 11 introns and 12 exons. Its mRNA is 2.2 kbp. Exon 1 codes 5 UTR. Exons 2–12 code the 10 different sushi domains. Structure
Factor XIII of human blood is a heterotetramer of two A and two B linear polypeptides or "units". A units are potentially catalytic; B units are not. A units form a dimeric center. Non-covalently bound B units form a ring-like structure around the center. B units are removed when XIII is activated to XIIIa. Dimers containing only A units also occur within cells such as platelets. Large quantities of singular B units (monomers) also occur within blood.
Yonsa may refer to:

Yonsa, a brand name for Abiraterone acetate, used by Sun Pharmaceuticals and Churchill Pharmaceuticals
Yonsa County, in North Korea
Yonsa-ri, city in Changwon, South Korea (Around 330 kilometres southeast of Seoul)