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Cystatin C is a non-glycosylated, basic protein (isoelectric point at pH 9.3). The crystal structure of cystatin C is characterized by a short alpha helix and a long alpha helix which lies across a large antiparallel, five-stranded beta sheet. Like other type 2 cystatins, it has two disulfide bonds.
One of these is cystatin C, a ubiquitous protein secreted by most cells in the body (it is an inhibitor of cysteine protease). [14] Cystatin C is freely filtered at the glomerulus. After filtration, Cystatin C is reabsorbed and catabolized by the tubular epithelial cells, with only small amounts excreted in the urine.
These are cystatin-like proteins found in a range of organisms: plant phytocystatins, fetuin in mammals, insect cystatins, and a puff adder venom cystatin, which inhibits metalloproteases of the MEROPS peptidase family M12 (astacin/adamalysin). Also, a number of the cystatin-like proteins have been shown to be devoid of inhibitory activity.
In a large sample of adults of all ages and both sexes, the figure for water fraction by weight was found to be 48 ±6% for females and 58 ±8% water for males. [8] Water is ~11% hydrogen by mass but ~67% hydrogen by atomic percent , and these numbers along with the complementary % numbers for oxygen in water, are the largest contributors to ...
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n/a Ensembl ENSG00000170369 n/a UniProt P09228 n/a RefSeq (mRNA) NM_001322 n/a RefSeq (protein) NP_001313 n/a Location (UCSC) Chr 20: 23.82 – 23.83 Mb n/a PubMed search n/a Wikidata View/Edit Human Cystatin-SA is a protein that in humans is encoded by the CST2 gene. The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active ...
13011 Ensembl ENSG00000077984 ENSMUSG00000068129 UniProt O76096 O89098 RefSeq (mRNA) NM_003650 NM_009977 RefSeq (protein) NP_003641 NP_034107 Location (UCSC) Chr 20: 24.95 – 24.96 Mb Chr 2: 150.41 – 150.42 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Cystatin-F is a protein that in humans is encoded by the CST7 gene. The cystatin superfamily encompasses proteins that contain ...
Small soluble cytochrome c proteins with a molecular weight of 8-12 kDa and a single heme group belong to class I. [10] [11] It includes the low-spin soluble cytC of mitochondria and bacteria, with the heme-attachment site located towards the N-terminus, and the sixth ligand provided by a methionine residue about 40 residues further on towards the C-terminus.