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Transcobalamin I (TC-1), also known as haptocorrin (HC), R-factor, and R-protein is encoded in the human by the TCN1 gene. TC-1 is a glycoprotein produced by the salivary glands of the mouth. It primarily serves to protect cobalamin (Vitamin B12) from acid degradation in the stomach by producing a HC-Vitamin B 12 complex.
6947 n/a Ensembl ENSG00000134827 n/a UniProt P20061 n/a RefSeq (mRNA) NM_001062 n/a RefSeq (protein) NP_001053 n/a Location (UCSC) Chr 11: 59.85 – 59.87 Mb n/a PubMed search n/a Wikidata View/Edit Human Haptocorrin (HC) also known as transcobalamin-1 (TC-1) or cobalophilin is a transcobalamin protein that in humans is encoded by the TCN1 gene. One essential function of haptocorrin is ...
C6orf118 (Chromosome 6, Open Reading Frame 118) is a protein in humans (Homo sapiens), which is encoded by the C6orf118 gene.The protein domain, translin-associated factor X-interacting N-terminus (TRAX), is involved in RNA binding and RNA nuclease activity and in the regulation of mitochondrial function and cellular homeostasis.
RpoS proteolysis forms another level of the sigma factor’s regulation. Degradation occurs via ClpXP, a barrel-shaped protease composed of two six-subunit rings of the ATP-dependent ClpX chaperone that surround two seven-subunit rings of ClpP (Repoila et al., 2003). The response regulator RssB has been identified as a σS-specific recognition ...
High levels of rheumatoid factor (in general, above 20 IU/mL, 1:40, or over the 95th percentile; there is some variation among labs) occur in rheumatoid arthritis (present in 80%) and Sjögren's syndrome (present in 50-70% of primary forms of disease). [11] The higher the level of RF the greater the probability of destructive articular disease.
Protein kinase RNA-activated also known as protein kinase R (PKR), interferon-induced, double-stranded RNA-activated protein kinase, or eukaryotic translation initiation factor 2-alpha kinase 2 (EIF2AK2) is an enzyme that in humans is encoded by the EIF2AK2 gene on chromosome 2. [5] [6] PKR is a serine/tyrosine kinase that is 551 amino acids ...
Factor XI (FXI) is produced by the liver and circulates as a homo-dimer in its inactive form. [9] The plasma half-life of FXI is approximately 52 hours. The zymogen factor is activated into factor XIa by factor XIIa (FXIIa), thrombin, and FXIa itself; due to its activation by FXIIa, FXI is a member of the "contact pathway" (which includes HMWK, prekallikrein, factor XII, factor XI, and factor IX).
The ~120 kDa SREBP precursor protein is anchored in the membranes of the endoplasmic reticulum (ER) and nuclear envelope by virtue of two membrane-spanning helices in the middle of the protein. The precursor has a hairpin orientation in the membrane, so that both the amino-terminal transcription factor domain and the COOH-terminal regulatory ...