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Proteins

Showing 2701 - 2750 of 2719 proteins
ID Protein Pathways

O95180

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HMDBP07496

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Voltage-dependent T-type calcium channel subunit alpha-1H

Gene Name: CACNA1H

Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1H gives rise to T-type calcium currents. T-type calcium channels belong to the "low-voltage activated (LVA)" group and are strongly blocked by nickel and mibefradil. A particularity of this type of channels is an opening at quite negative potentials, and a voltage-dependent inactivation. T-type channels serve pacemaking functions in both central neurons and cardiac nodal cells and support calcium signaling in secretory cells and vascular smooth muscle. They may also be involved in the modulation of firing patterns of neurons which is important for information processing as well as in cell growth processes

P0AB65

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weak acylphosphatase

Gene Name: yccX

Q46800

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Xanthine dehydrogenase FAD-binding subunit

Gene Name: xdhB

Involved in flavin adenine dinucleotide binding. Presumed to be a dehydrogenase, but possibly an oxidase. Participates in limited purine salvage (requires aspartate) but does not support aerobic growth on purines as the sole carbon source (purine catabolism).

Q46801

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Xanthine dehydrogenase iron-sulfur-binding subunit

Gene Name: xdhC

Involved in oxidoreductase activity. Iron-sulfur subunit of the xanthine dehydrogenase complex.

Q46799

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Xanthine dehydrogenase molybdenum-binding subunit

Gene Name: xdhA

Involved in oxidoreductase activity. Presumed to be a dehydrogenase, but possibly an oxidase. Participates in limited purine salvage (requires aspartate) but does not support aerobic growth on purines as the sole carbon source (purine catabolism). Deletion results in increased adenine sensitivity, suggesting that this protein contributes to the conversion of adenine to guanine nucleotides during purine salvage.

P47989

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HMDBP00181

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Xanthine dehydrogenase/oxidase

Gene Name: XDH

Key enzyme in purine degradation. Catalyzes the oxidation of hypoxanthine to xanthine. Catalyzes the oxidation of xanthine to uric acid. Contributes to the generation of reactive oxygen species. Has also low oxidase activity towards aldehydes (in vitro).

P0A9M5

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Xanthine phosphoribosyltransferase

Gene Name: gpt

Involved in nucleoside metabolic process. Acts on guanine, xanthine and to a lesser extent hypoxanthine.

P45562

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Xanthosine permease

Gene Name: xapB

Involved in nucleoside transmembrane transporter activity. Nucleoside transport.

P45563

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Xanthosine phosphorylase

Gene Name: xapA

Involved in purine-nucleoside phosphorylase activity. The nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the nucleoside molecule, with the formation of the corresponding free bases and pentose-1-phosphate. This protein can degrade all purine nucleosides except adenosine and deoxyadenosine.

Z0Z000

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xanthoxin transporter

Gene Name: ?

Xanthoxin transporter is theorized to export xanthoxin from the chloroplast into the cytosol for abscisic acid biosynthesis. It has yet to be discovered.

P37388

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Xylose import ATP-binding protein XylG

Gene Name: xylG

Involved in nucleotide binding. Part of the ABC transporter complex XylFGH involved in xylose import. Responsible for energy coupling to the transport system (Probable). The XylFGH system can also transport ribose in absence of xylose.

P00944

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Xylose isomerase

Gene Name: xylA

Involved in xylose isomerase activity. D-xylose = D-xylulose.

P0ACI3

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Xylose operon regulatory protein

Gene Name: xylR

Regulatory protein for the xylBAFGHR operon.

P0AGI4

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Xylose transport system permease protein xylH

Gene Name: xylH

Involved in transporter activity. Part of the binding-protein-dependent transport system for D-xylose. Probably responsible for the translocation of the substrate across the membrane.

P42826

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Xylulose kinase

Gene Name: XKS1

P09099

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Xylulose kinase

Gene Name: xylB

Involved in phosphotransferase activity, alcohol group as acceptor. ATP + D-xylulose = ADP + D-xylulose 5- phosphate.

Q9UM01

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HMDBP03080

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Y+L amino acid transporter 1

Gene Name: SLC7A7

Involved in the sodium-independent uptake of dibasic amino acids and sodium-dependent uptake of some neutral amino acids. Requires co-expression with SLC3A2/4F2hc to mediate the uptake of arginine, leucine and glutamine. Plays a role in nitric oxide synthesis in human umbilical vein endothelial cells (HUVECs) via transport of L-arginine. Involved in the transport of L- arginine in monocytes

Q92536

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HMDBP09098

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Y+L amino acid transporter 2

Gene Name: SLC7A6

Involved in the sodium-independent uptake of dibasic amino acids and sodium-dependent uptake of some neutral amino acids. Requires co-expression with SLC3A2/4F2hc to mediate the uptake of arginine, leucine and glutamine. Also acts as an arginine/glutamine exchanger, following an antiport mechanism for amino acid transport, influencing arginine release in exchange for extracellular amino acids. Plays a role in nitric oxide synthesis in human umbilical vein endothelial cells (HUVECs) via transport of L-arginine. Involved in the transport of L-arginine in monocytes. Reduces uptake of ornithine in retinal pigment epithelial (RPE) cells

Q202I0

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Zeta-carotene desaturase

Gene Name: ZDS

Catalyzes the conversion of zeta-carotene to lycopene via the intermediary of neurosporene. It carries out two consecutive desaturations (introduction of double bonds) at positions C-7 and C-7'.
Showing 2701 - 2750 of 2719 proteins