KLK1

  • Official Full Name

    kallikrein 1
  • Overview

    Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. This protein is functionally conserved in its capacity to release the vasoactive peptide, Lys-bradykinin, from low molecular weight kininogen. [provided by RefSeq, Jul 2008]
  • Synonyms

    KLK1;kallikrein 1;hK1;KLKR;Klk6;kallikrein-1;tissue kallikrein;glandular kallikrein 1;kallikrein serine protease 1;kallikrein 1, renal/pancreas/salivary;kidney/pancreas/salivary gland kallikrein

Recombinant Proteins

  • Human
  • Rat
  • Mouse
  • Cynomolgus
  • HEK293
  • E.coli
  • Mammalian Cells
  • P.pastoris
  • Yeast
  • Human Cells
  • Mouse
  • Rabbit
  • Insect Cells
  • His
  • Non
  • GST
  • Avi
  • Fc
  • SUMO
Cat.# Product name Source (Host) Species Tag Protein Length Price
KLK1-299H Active Recombinant Human KLK1 protein, His-tagged HEK293 Human His Met1-Ser262
KLK1-643H Active Recombinant Human KLK1, His-tagged E.coli Human His
KLK1-742H Active Recombinant Human KLK1, His-tagged Mammalian Cells Human His 25-262 a.a.
KLK1-38H Recombinant Human Kallikrein 1 P.pastoris Human Non
KLK1-29686TH Recombinant Human KLK1 Yeast Human Non 238 amino acids
KLK1-3288R Recombinant Rat KLK1 Protein Mammalian Cells Rat His
Klk1-519M Active Recombinant Mouse Klk1 protein(Met1-Asp261), His-tagged HEK293 Mouse His Met1-Asp261
Klk1-5678M Recombinant Mouse Klk1 protein, His & GST-tagged E.coli Mouse GST&His Gly27~Asp261
Klk1-5679R Recombinant Rat Klk1 protein, His-tagged E.coli Rat His Pro2~Glu86
KLK1-643C Recombinant Cynomolgus KLK1 Protein, His-tagged Mammalian Cells Cynomolgus His
KLK1-7198H Recombinant Human Kallikrein 1, His-tagged E.coli Human His 25-262aa
KLK1-727H Recombinant Human KLK1 Protein, GST-His-tagged E.coli Human GST&His
KLK1-2901HCL Recombinant Human KLK1 cell lysate Human Cells Human Non
KLK1-743MCL Recombinant Mouse KLK1 cell lysate Human Cells Mouse Non
CAB11569MH Mouse Anti-Human Kallikrein 1 Monoclonal Antibody Mouse Human Non
CAB11570RH Rabbit Anti-Human Kallikrein 1 Monoclonal Antibody Rabbit Human Non
KLK1-0494H Recombinant Human KLK1 Protein (I25-S262), Tag Free Insect Cells Human Non I25-S262
KLK1-0495H Recombinant Human KLK1 Protein (I25-S262), His tagged Insect Cells Human His I25-S262
KLK1-074H Recombinant Human KLK1 Protein, His-tagged HEK293 Human His 262
KLK1-089K Active Recombinant Human KLK1 Protein (262 aa), C-6×His-tagged E.coli Human His 262
KLK1-2944R Recombinant Rat KLK1 Protein, His (Fc)-Avi-tagged HEK293 Rat Avi&Fc&His
KLK1-2944R-B Recombinant Rat KLK1 Protein Pre-coupled Magnetic Beads HEK293 Rat
KLK1-29685TH Native Human KLK1 Human Non Full L.
KLK1-3137H Recombinant Human KLK1 protein, His-SUMO-tagged E.coli Human His&SUMO 25-262aa
KLK1-3138H Recombinant Human KLK1 Protein (Pro19-Ser262), C-His tagged Mammalian Cells Human His Pro19-Ser262
KLK1-3228H Recombinant Human KLK1 Protein, His (Fc)-Avi-tagged HEK293 Human Avi&Fc&His
KLK1-3228H-B Recombinant Human KLK1 Protein Pre-coupled Magnetic Beads HEK293 Human
KLK1-389C Recombinant Cynomolgus Monkey KLK1 Protein, His (Fc)-Avi-tagged HEK293 Cynomolgus Avi&Fc&His
KLK1-389C-B Recombinant Cynomolgus Monkey KLK1 Protein Pre-coupled Magnetic Beads HEK293 Cynomolgus
KLK1-4349H Recombinant Human KLK1 Protein (Ile25-Asn261), N-His tagged E.coli Human His Ile25-Asn261
KLK1-605H Recombinant Human KLK1 Protein, GST/His-tagged E.coli Human GST&His

    Background

    What is KLK1 protein?

    KLK1 protein, also known as tissue kallikrein 1, is an enzyme that is encoded by the KLK1 gene. It belongs to the kallikrein-related peptidase family and is primarily expressed in the kidneys, pancreas, and salivary glands. KLK1 is involved in various physiological processes, including regulation of blood pressure and electrolyte balance.

    What is the function of KLK1 protein?

    The main function of KLK1 is to catalyze the hydrolysis of kininogens to produce active kinins, particularly bradykinin. Bradykinin is a potent vasodilator that plays a role in regulating blood pressure by promoting the relaxation of blood vessels. KLK1 also exhibits anti-inflammatory properties by inhibiting the formation of pro-inflammatory mediators such as prostaglandins and leukotrienes.

    KLK1 related signaling pathway

    The signaling pathway of KLK1 is not well-studied or understood compared to other more extensively investigated pathways. However, KLK1 has been shown to have several physiological functions, including regulation of blood pressure, electrolyte balance, and blood coagulation.

    KLK1 exerts its effects through the activation of the bradykinin receptor (B2 receptor) pathway. When KLK1 interacts with its substrate kininogen, it generates the vasoactive peptide bradykinin. Bradykinin binds to the B2 receptor, leading to the activation of downstream signaling pathways, such as the PI3K/Akt pathway and the nitric oxide/cyclic GMP pathway. These signaling pathways mediate various biological effects, such as vasodilation, inflammation, and tissue repair.

    KLK1 Related Diseases

    •  Hypertension: A decrease in KLK1 activity can result in impaired vasodilation and increased blood pressure.
    •  Renal disorders: Altered KLK1 activity may contribute to kidney diseases, such as chronic kidney disease and diabetic nephropathy.
    •  Fibrosis: KLK1 has been shown to have anti-fibrotic effects, so its deficiency can lead to fibrotic disorders, such as pulmonary fibrosis or liver fibrosis.
    •  Hypertension: KLK1 has been investigated as a potential treatment for hypertension due to its ability to lower blood pressure. It is being studied as an alternative or adjunct to conventional antihypertensive drugs.
    •  Acute pancreatitis: KLK1 has been explored as a therapeutic agent for acute pancreatitis, an inflammatory condition of the pancreas. It has been shown to reduce inflammation, oxidative stress, and tissue damage in experimental models.

    Biomedical Application of KLK1 Protein

    •  Hypertension: KLK1 has been investigated as a potential treatment for hypertension due to its ability to lower blood pressure. It is being studied as an alternative or adjunct to conventional antihypertensive drugs.
    •  Diabetic nephropathy: KLK1 has shown promising effects in preclinical studies for the treatment of diabetic nephropathy, a common complication of diabetes that leads to kidney damage. It has been shown to improve kidney function and reduce proteinuria, a hallmark feature of diabetic nephropathy.
    •  Acute pancreatitis: KLK1 has been explored as a therapeutic agent for acute pancreatitis, an inflammatory condition of the pancreas. It has been shown to reduce inflammation, oxidative stress, and tissue damage in experimental models.

    Case Study

    KLK1
    KLK1

    (Melia Magnen, 2019)

    Fig2. Kallikrein 1 (KLK1) induces the release of granulocyte-macrophage colony-stimulating factor (GM-CSF). D: differentiated NHBE were treated with active human KLK1 for 6 or 24 h and GM-CSF was quantified in the culture medium by ELISA (n = 4 per group). E: KLK1-dependent release of GM-CSF from A549 alveolar epithelial-like cells treated for 24 h with 50 nM human KLK1 (n = 8). Data points/bars represent means ± SE of the results and are representative of 2 independent experiments.

    KLK1

    (Heng Zhong, 2023)

    Fig3. The heap map of molecular docking binding energy.

    KLK1

    (Z. Tang, 2018)

    Fig4. Verification of hKLK1 and rKLK1 expression in the corpus cavernosum. (A) Representative hKLK1 genomic DNA bands from rat corpus cavernosum obtained after conventional PCR, followed by agarose gel electrophoresis. (B) Real‑time RT‑PCR showing the relative mRNA levels of rKLK1 and hKLK1, with β‑actin as the loading control in the corpus cavernosum of the three groups. (C) Representative western blotting results of rKLK1, hKLK1, and β‑actin in the corpus cavernosum of the three groups. (D) The relative rKLK1 and hKLK1 expression (with respect to the β‑actin loading control) in the corpus cavernosum of the three groups are presented as bar graphs.

    Quality Guarantee

    High Purity

    KLK1

    Fig1. SDS-PAGE (KLK1-3138H)

    Involved Pathway

    KLK1 involved in several pathways and played different roles in them. We selected most pathways KLK1 participated on our site, such as Renin-angiotensin system,Endocrine and other factor-regulated calcium reabsorption, which may be useful for your reference. Also, other proteins which involved in the same pathway with KLK1 were listed below. Creative BioMart supplied nearly all the proteins listed, you can search them on our site.

    Pathway Name Pathway Related Protein
    Endocrine and other factor-regulated calcium reabsorption PLCB3,PRKACB,KLK1B3,PRKCG,ATP1B4,TRPV5,KLK1B5,ATP1A1,ATP2B1,SLC8A1
    Renin-angiotensin system CPA3,ATP6AP2,KLK1B26,ACE2,CMA1,AGTR1A,LNPEP,THOP1,MME,KLK1B5

    Protein Function

    KLK1 has several biochemical functions, for example, serine-type endopeptidase activity. Some of the functions are cooperated with other proteins, some of the functions could acted by KLK1 itself. We selected most functions KLK1 had, and list some proteins which have the same functions with KLK1. You can find most of the proteins on our site.

    Function Related Protein
    serine-type endopeptidase activity CMA1,MST1,CELA2A,KLK14,PCSK2,MMP2,CTRC,HGF,TMPRSS11E,MMP8

    Interacting Protein

    KLK1 has direct interactions with proteins and molecules. Those interactions were detected by several methods such as yeast two hybrid, co-IP, pull-down and so on. We selected proteins and molecules interacted with KLK1 here. Most of them are supplied by our site. Hope this information will be useful for your research of KLK1.

    Resources

    References

    • El Annan, J; Jiang, GM; et al. Elevated Immunoglobulin to Tissue KLK11 in Patients With Sjogren Syndrome. CORNEA 32:E90-E93(2013).
    • Yamamuro, T; Hori, M; et al. Tickling stimulation causes the up-regulation of the kallikrein family in the submandibular gland of the rat. BEHAVIOURAL BRAIN RESEARCH 236:236-243(2013).

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