| ID | Sequence | Length | GC content |
|---|---|---|---|
| AGUGCCACAUUAGAACAGCUUGAAGACCGUUCAUUUUUAAGUGACAAGA… | 2258 nt | 0.4384 | |
| AGUGCCACAUUAGAACAGCUUGAAGACCGUUCAUUUUUAAGUGACAAGA… | 2187 nt | 0.4463 | |
| AGUGCCACAUUAGAACAGCUUGAAGACCGUUCAUUUUUAAGUGACAAGA… | 2289 nt | 0.4386 |
This gene encodes a glycoprotein that participates in the surface-dependent activation of blood coagulation, fibrinolysis, kinin generation and inflammation. The encoded preproprotein present in plasma as a non-covalent complex with high molecular weight kininogen undergoes proteolytic processing mediated by activated coagulation factor XII to generate a disulfide-linked, heterodimeric serine protease comprised of heavy and light chains. Certain mutations in this gene cause prekallikrein deficiency. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2016]
A study in human sepsis patients identified the KLKB1 as a potential diagnostic biomarker, finding it to be lowly expressed in the sepsis group compared to normal controls based on RNA sequencing data, with its mRNA expression pattern being consistent with its corresponding protein level [Wang et al. DOI:10.2147/IDR.S380137]. A study in humans demonstrated that the mRNA marker KLK3 is a highly effective and specific biomarker for semen identification, showing over 98% positive detection in both normal and infertile semen samples with minimal cross-reactivity in non-semen body fluids [Tian et al. DOI:10.1002/elps.202000238]. Furthermore, KLK3 was integrated into discriminant function analyses, achieving a 96.6% accuracy for normal semen identification and maintaining utility in broader semen identification contexts, including mixtures, as part of reviewed mRNA-based body fluid identification frameworks [Liu et al. DOI:10.1002/elps.202400077].