Alpha-crystallin B chain

An alpha-crystallin B chain that is encoded in the genome of human. [PRO:DNx, UniProtKB:P02511]

Synonyms

Alpha(B)-crystallin;
Heat shock protein beta-5;
HspB5;
Renal carcinoma antigen NY-REN-27;
Rosenthal fiber component

Research

Bioassay Publications (1)

Timeframe	Studies on this Protein(%)	All Drugs %
pre-1990	0 (0.00)	18.7374
1990's	0 (0.00)	18.2507
2000's	0 (0.00)	29.6817
2010's	1 (100.00)	24.3611
2020's	0 (0.00)	2.80

Compounds (2)

Drugs with Activation Measurements

Drug	Taxonomy	Measurement	Average (mM)	Bioassay(s)	Publication(s)
25-hydroxycholesterol	Homo sapiens (human)	EC50	0.3200	1	1
lanosterol	Homo sapiens (human)	EC50	1.4200	1	1

Enables

This protein enables 10 target(s):

Target	Category	Definition
amyloid-beta binding	molecular function	Binding to an amyloid-beta peptide/protein. [GOC:hjd]
structural molecule activity	molecular function	The action of a molecule that contributes to the structural integrity of a complex. [GOC:mah, GOC:vw]
structural constituent of eye lens	molecular function	The action of a molecule that contributes to the structural integrity of the lens of an eye. [GOC:mah]
protein binding	molecular function	Binding to a protein. [GOC:go_curators]
microtubule binding	molecular function	Binding to a microtubule, a filament composed of tubulin monomers. [GOC:krc]
identical protein binding	molecular function	Binding to an identical protein or proteins. [GOC:jl]
protein homodimerization activity	molecular function	Binding to an identical protein to form a homodimer. [GOC:jl]
protein-containing complex binding	molecular function	Binding to a macromolecular complex. [GOC:jl]
metal ion binding	molecular function	Binding to a metal ion. [GOC:ai]
unfolded protein binding	molecular function	Binding to an unfolded protein. [GOC:ai]

Located In

This protein is located in 16 target(s):

Target	Category	Definition
nucleus	cellular component	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. [GOC:go_curators]
nucleoplasm	cellular component	That part of the nuclear content other than the chromosomes or the nucleolus. [GOC:ma, ISBN:0124325653]
cytoplasm	cellular component	The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. [ISBN:0198547684]
mitochondrion	cellular component	A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. [GOC:giardia, ISBN:0198506732]
lysosome	cellular component	A small lytic vacuole that has cell cycle-independent morphology found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions. [GOC:mah, ISBN:0198506732]
cytosol	cellular component	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. [GOC:hjd, GOC:jl]
cell surface	cellular component	The external part of the cell wall and/or plasma membrane. [GOC:jl, GOC:mtg_sensu, GOC:sm]
Z disc	cellular component	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached. [GOC:mtg_muscle, ISBN:0815316194]
axon	cellular component	The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter. [GOC:nln, ISBN:0198506732]
M band	cellular component	The midline of aligned thick filaments in a sarcomere; location of specific proteins that link thick filaments. Depending on muscle type the M band consists of different numbers of M lines. [GOC:mtg_muscle, ISBN:0198506732, ISBN:0815316194]
actin filament bundle	cellular component	An assembly of actin filaments that are on the same axis but may be oriented with the same or opposite polarities and may be packed with different levels of tightness. [GOC:mah]
dendritic spine	cellular component	A small, membranous protrusion from a dendrite that forms a postsynaptic compartment, typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable:they can be thin, stubby, mushroom, or branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity. [GOC:nln]
perikaryon	cellular component	The portion of the cell soma (neuronal cell body) that excludes the nucleus. [GOC:jl]
extracellular exosome	cellular component	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. [GOC:BHF, GOC:mah, GOC:vesicles, PMID:15908444, PMID:17641064, PMID:19442504, PMID:19498381, PMID:22418571, PMID:24009894]
synaptic membrane	cellular component	A specialized area of membrane on either the presynaptic or the postsynaptic side of a synapse, the junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell. [GOC:BHF, PMID:20410104]
cardiac myofibril	cellular component	A cardiac myofibril is a myofibril specific to cardiac muscle cells. [GOC:cjm, GOC:devbiol]

Active In

This protein is active in 2 target(s):

Target	Category	Definition
nucleus	cellular component	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. [GOC:go_curators]
cytoplasm	cellular component	The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. [ISBN:0198547684]

Part Of

This protein is part of 1 target(s):

Target	Category	Definition
protein-containing complex	cellular component	A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together. [GOC:dos, GOC:mah]

Involved In

This protein is involved in 22 target(s):

Target	Category	Definition
response to hypoxia	biological process	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level. [GOC:hjd]
lens development in camera-type eye	biological process	The process whose specific outcome is the progression of the lens over time, from its formation to the mature structure. The lens is a transparent structure in the eye through which light is focused onto the retina. An example of this process is found in Mus musculus. [GOC:dph, ISBN:0582064333]
protein folding	biological process	The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure. [GOC:go_curators, GOC:rb]
muscle contraction	biological process	A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. [GOC:ef, GOC:mtg_muscle, ISBN:0198506732]
tubulin complex assembly	biological process	The aggregation and bonding together of alpha- and beta-tubulin to form a tubulin heterodimer. [GOC:mah]
muscle organ development	biological process	The process whose specific outcome is the progression of the muscle over time, from its formation to the mature structure. The muscle is an organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work. [GOC:jid, ISBN:0198506732]
negative regulation of gene expression	biological process	Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA). [GOC:txnOH-2018]
negative regulation of cell growth	biological process	Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth. [GOC:go_curators]
microtubule polymerization or depolymerization	biological process	Assembly or disassembly of microtubules by the addition or removal of tubulin heterodimers from a microtubule. [GOC:mah]
negative regulation of protein-containing complex assembly	biological process	Any process that stops, prevents, or reduces the frequency, rate or extent of protein complex assembly. [GOC:mah]
response to estradiol	biological process	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of stimulus by estradiol, a C18 steroid hormone hydroxylated at C3 and C17 that acts as a potent estrogen. [GOC:mah, ISBN:0911910123]
negative regulation of intracellular transport	biological process	Any process that stops, prevents, or reduces the frequency, rate or extent of the directed movement of substances within cells. [GOC:mah]
response to hydrogen peroxide	biological process	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a hydrogen peroxide (H2O2) stimulus. [GOC:jl]
negative regulation of apoptotic process	biological process	Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process. [GOC:jl, GOC:mtg_apoptosis]
negative regulation of DNA-templated transcription	biological process	Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription. [GOC:go_curators, GOC:txnOH]
protein stabilization	biological process	Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation. [GOC:ai]
stress-activated MAPK cascade	biological process	A MAPK cascade that starts with the activation of a stress-activated MAP kinase cascade. [GOC:ai, PMID:15936270]
apoptotic process involved in morphogenesis	biological process	Any apoptotic process that contributes to the shaping of an anatomical structure. [GOC:dph, GOC:mtg_apoptosis]
negative regulation of amyloid fibril formation	biological process	Any process that stops, prevents or reduces the frequency, rate or extent of amyloid fibril formation. [GO_REF:0000058, GOC:aruk, GOC:bc, GOC:TermGenie, PMID:23106396]
negative regulation of reactive oxygen species metabolic process	biological process	Any process that stops, prevents or reduces the frequency, rate or extent of reactive oxygen species metabolic process. [GOC:mah]
protein refolding	biological process	The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones. [GOC:mb]
response to heat	biological process	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism. [GOC:lr]