alpha-1-antichymotrypsin: interaction with chymotrypsin-like proteinases

 

Abstract

The interaction of human plasma alpha-1-antichymotrypsin with serine proteinases from different tissues has been investigated. The protein was found to form stable complexes with pancreatic chymotrypsin, leukocyte cathepsin G, and mast cell chymotrypsin. No inhibition of pancreatic trypsin or leukocyte elastase could be demonstrated. With mixtures containing both alpha-1-antichymotrypsin and alpha-1-proteinase inhibitor, it was found that the former preferentially inactivated leukocyte cathepsin G, while the latter showed a strong preference for pancreatic chymotrypsin.

However, leukocyte elastase was specifically inactivated by alpha-1-proteinase inhibitor even in 1:1 mixtures with chymotrypsin. All of these results taken together suggest that one of the primary functions of alpha-1-antichymotrypsin is to inactivate leukocyte cathepsin G, while alpha-1-proteinase inhibitor controls the activity of other serine proteinases, particularly leukocyte elastase.

antitrypsin genotypes

antitrypsin genotypes

 

 

CYTOMORPHOLOGY OF SOLID-PSEUDOPAPILLARY NEOPLASM:

• highly cellular aspirate
• myxoid or hyalinized vascular stalks lined by neoplastic cells
• delicate granular cytoplasm, indistinct cell borders
• round or oval nuclei
• nuclear grooves
• inconspicuous nucleoli
• foam cells, necrotic debris

FNA yields highly cellular smears composed of a monotonous population of cuboidal cells arranged in loosely cohesive groups, as isolated cells, and, most characteristically, as a single or multiple layer around vascular structures that are often thickened by a myxoid or hyaline material (Fig. 13-7A). The tumor cells have delicate granular cytoplasm with indistinct cell borders. The nuclei are round to oval with finely dispersed chromatin, smooth or grooved nuclear contours, and indistinct nucleoli (Fig. 13-7B). Mitotic figures are usually inconspicuous. The background may contain abundant blood, foam cells, globules of amorphous myxoid material, and necrotic debris.

 

 

 

CD11b Antibody Antibody
ABD2911 100 ug
EUR 438
anti- Antibody^Polyclonal antibody control antibody
LSMab09882 100 ug
EUR 438
Ly1 Antibody Reactive (LYAR) Antibody
20-abx123734
  • EUR 411.00
  • EUR 592.00
  • 100 ul
  • 200 ul
  • Shipped within 5-10 working days.
Anti-Glycolipid Antibody (AGA) Antibody
abx036399-100ug 100 ug
EUR 391
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
abx033330-400ul 400 ul
EUR 523
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
abx033330-80l 80 µl
EUR 286
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
20-abx008109
  • EUR 300.00
  • EUR 439.00
  • EUR 189.00
  • 100 ul
  • 200 ul
  • 30 ul
  • Shipped within 5-10 working days.
Anti-Glycolipid Antibody (AGA) Antibody
20-abx004855
  • EUR 411.00
  • EUR 592.00
  • EUR 182.00
  • EUR 314.00
  • 100 ul
  • 200 ul
  • 20 ul
  • 50 ul
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
20-abx014333
  • EUR 314.00
  • EUR 98.00
  • EUR 398.00
  • EUR 495.00
  • 100 ug
  • 10 ug
  • 200 ug
  • 300 µg
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
20-abx324434
  • EUR 314.00
  • EUR 244.00
  • 100 ug
  • 50 ug
  • Shipped within 5-10 working days.
Anti-Glycoprotein Antibody (GP) Antibody
20-abx319900
  • EUR 411.00
  • EUR 1845.00
  • EUR 599.00
  • EUR 182.00
  • EUR 300.00
  • 100 ug
  • 1 mg
  • 200 ug
  • 20 ug
  • 50 ug
  • Shipped within 5-10 working days.
Anti-Glycoprotein Antibody (GP) Antibody
20-abx319901
  • EUR 411.00
  • EUR 1845.00
  • EUR 599.00
  • EUR 182.00
  • EUR 300.00
  • 100 ug
  • 1 mg
  • 200 ug
  • 20 ug
  • 50 ug
  • Shipped within 5-10 working days.
Anti-Glycoprotein Antibody (GP) Antibody
20-abx319905
  • EUR 411.00
  • EUR 1845.00
  • EUR 599.00
  • EUR 182.00
  • EUR 300.00
  • 100 ug
  • 1 mg
  • 200 ug
  • 20 ug
  • 50 ug
  • Shipped within 5-10 working days.
Anti-Glycoprotein Antibody (GP) Antibody
20-abx319913
  • EUR 411.00
  • EUR 1845.00
  • EUR 599.00
  • EUR 182.00
  • EUR 300.00
  • 100 ug
  • 1 mg
  • 200 ug
  • 20 ug
  • 50 ug
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
20-abx311665
  • EUR 411.00
  • EUR 1845.00
  • EUR 599.00
  • EUR 182.00
  • EUR 300.00
  • 100 ug
  • 1 mg
  • 200 ug
  • 20 ug
  • 50 ug
  • Shipped within 5-10 working days.
Ly1 Antibody Reactive (LYAR) Antibody
abx234901-100ug 100 ug
EUR 551
  • Shipped within 5-12 working days.
Anti-Glycolipid Antibody (AGA) Antibody
abx230204-100ug 100 ug
EUR 481
  • Shipped within 5-12 working days.
Anti-Anti-SEPT2 Antibody antibody
STJ28365 100 µl
EUR 277
Anti-Anti-SEPT7 Antibody antibody
STJ28963 100 µl
EUR 277
Description: This gene encodes a protein that is highly similar to the CDC10 protein of Saccharomyces cerevisiae. The protein also shares similarity with Diff 6 of Drosophila and with H5 of mouse. Each of these similar proteins, including the yeast CDC10, contains a GTP-binding motif. The yeast CDC10 protein is a structural component of the 10 nm filament which lies inside the cytoplasmic membrane and is essential for cytokinesis. This human protein functions in gliomagenesis and in the suppression of glioma cell growth, and it is required for the association of centromere-associated protein E with the kinetochore. Alternative splicing results in multiple transcript variants. Several related pseudogenes have been identified on chromosomes 5, 7, 9, 10, 11, 14, 17 and 19.
Anti-Anti-SEPT6 antibody antibody
STJ11100949 100 µl
EUR 277
Description: This gene is a member of the septin family of GTPases. Members of this family are required for cytokinesis. One version of pediatric acute myeloid leukemia is the result of a reciprocal translocation between chromosomes 11 and X, with the breakpoint associated with the genes encoding the mixed-lineage leukemia and septin 2 proteins. This gene encodes four transcript variants encoding three distinct isoforms. An additional transcript variant has been identified, but its biological validity has not been determined.
Anti-Anti-SEPT2 Antibody antibody
STJ25475 100 µl
EUR 277
Anti-Anti-SEPT5 Antibody antibody
STJ25477 100 µl
EUR 277
Description: This gene is a member of the septin gene family of nucleotide binding proteins, originally described in yeast as cell division cycle regulatory proteins. Septins are highly conserved in yeast, Drosophila, and mouse and appear to regulate cytoskeletal organization. Disruption of septin function disturbs cytokinesis and results in large multinucleate or polyploid cells. This gene is mapped to 22q11, the region frequently deleted in DiGeorge and velocardiofacial syndromes. A translocation involving the MLL gene and this gene has also been reported in patients with acute myeloid leukemia. Alternative splicing results in multiple transcript variants. The presence of a non-consensus polyA signal (AACAAT) in this gene also results in read-through transcription into the downstream neighboring gene (GP1BB; platelet glycoprotein Ib), whereby larger, non-coding transcripts are produced.
Anti-Anti-SEPT8 Antibody antibody
STJ25479 100 µl
EUR 277
Description: This gene is a member of the septin family of nucleotide binding proteins, originally described in yeast as cell division cycle regulatory proteins. Septins are highly conserved in yeast, Drosophila, and mouse, and appear to regulate cytoskeletal organization. Disruption of septin function disturbs cytokinesis and results in large multinucleate or polyploid cells. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene.