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The image at the left is a crystal structure of the double-d fragment from human fibrin with two bound ligands. The experimental method used to obtain the image was X-ray diffraction, and it has a resolution of 2.30 Å. The structure is mainly made up of single alpha helices shown in red and beta sheets shown in yellow.
Fibrinogen is made and secreted into the blood primarily by liver hepatocyte cells. Endothelium cells are also reported to make small amounts of fibrinogen, but this fibrinogen has not been fully characterized; blood platelets and their precursors, bone marrow megakaryocytes, while once thought to make fibrinogen, are now known to take up and store but not make the glycoprotein.
2243 14161 Ensembl ENSG00000171560 ENSMUSG00000028001 UniProt P02671 E9PV24 RefSeq (mRNA) NM_000508 NM_021871 NM_001111048 NM_010196 RefSeq (protein) NP_000499 NP_068657 NP_001104518 NP_034326 Location (UCSC) Chr 4: 154.58 – 154.59 Mb Chr 3: 82.93 – 82.94 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Fibrinogen alpha chain is a protein that in humans is encoded by the FGA gene ...
Fibrinogen beta chain, also known as FGB, is a gene found in humans and most other vertebrates with a similar system of blood coagulation.. The protein encoded by this gene is the beta component of fibrinogen, a blood-borne glycoprotein composed of three pairs of nonidentical polypeptide chains.
2266 99571 Ensembl ENSG00000171557 ENSMUSG00000033860 UniProt P02679 Q8VCM7 RefSeq (mRNA) NM_021870 NM_000509 NM_133862 NM_001317105 RefSeq (protein) NP_000500 NP_068656 NP_001304034 NP_598623 Location (UCSC) Chr 4: 154.6 – 154.61 Mb Chr 3: 82.92 – 82.92 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Fibrinogen gamma chain, also known as fibrinogen gamma gene (FGG), is a human ...
Polymerization time of fibrinogen and thrombin is affected primarily by concentration of thrombin and temperature, while fibrinogen concentration has a minor effect. Fibrin gel characterization by scanning electron microscopy reveals that thick fibers make up a dense structure at lower fibrinogen concentrations (5 mg/ml) and thinner fibers and looser gel can be obtained as fibrinogen ...
The fibrinopeptides, fibrinopeptide A (FpA) and fibrinopeptide B (FpB), are peptides which are located in the central region of the fibrous glycoprotein fibrinogen (factor I) and are cleaved by the enzyme thrombin (factor IIa) to convert fibrinogen into covalently-linked fibrin (factor IA) monomers.
After the fibrin clot is formed, clot retraction occurs and then clot resolution starts, and these two process are together called "tertiary hemostasis". Activated platelets contract their internal actin and myosin fibrils in their cytoskeleton, which leads to shrinkage of the clot volume.
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