Dnase1
Function
Serum endocuclease secreted into body fluids by a wide variety of exocrine and endocrine organs (PubMed:29191910). Expressed by non-hematopoietic tissues and preferentially cleaves protein-free DNA. Among other functions, seems to be involved in cell death by apoptosis. Binds specifically to G-actin and blocks actin polymerization (By similarity). Together with DNASE1L3, plays a key role in degrading neutrophil extracellular traps (NETs) (PubMed:29191910). NETs are mainly composed of DNA fibers and are released by neutrophils to bind pathogens during inflammation (PubMed:29191910). Degradation of intravascular NETs by DNASE1 and DNASE1L3 is required to prevent formation of clots that obstruct blood vessels and cause organ damage following inflammation (PubMed:29191910).
Post-translational modifications
N-glycosylated.
Sequence Similarities
Belongs to the DNase I family.
Tissue Specificity
Highly expressed in the parotid and submandibular gland as well as in the kidney and duodenum (at protein level) (PubMed:15015938). Expressed at intermediate level in the ileum, mesenterial lymph nodes, liver, ventral prostate, epididymis, ovary and stomach (at protein level) (PubMed:15015938). Expressed at low level in the sublingual, preputial, coagulation and pituitary gland (at protein level) (PubMed:15015938). Also present in the lachrymal and thyroid glands, striated muscle, intestine, the urinary bladder and the eye (PubMed:15015938, PubMed:7857306, PubMed:9192086).
Cellular localization
- Secreted
- Zymogen granule
- Nucleus envelope
- Secretory protein, stored in zymogen granules and found in the nuclear envelope.
Alternative names
Dnl1, Deoxyribonuclease-1, Deoxyribonuclease I, DNase I