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Chemical compound
Histidine or histidin (symbol His or H) is an essential amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is
Histidine
Molecular biology technique
consists of at least six histidine (His) residues, often at the N- or C-terminus of the protein. It is also known as a hexa histidine-tag, 6xHis-tag, or His6
His-tag
Histidine transaminase (EC 2.6.1.38) is an enzyme that catalyzes the chemical reaction histidine + α-ketoglutaric acid imidazole-4-pyruvic
Histidine_transaminase
Histidine N-acetyltransferase (EC 2.3.1.33) is an enzyme that catalyzes the chemical reaction histidine + acetyl-CoA N-acetyl-L-histidine
Histidine_N-acetyltransferase
Method of stimulus sensing and response in cells
regulator (RR) by a histidine kinase (HK). Histidine kinases are typically homodimeric transmembrane proteins containing a histidine phosphotransfer domain
Two-component regulatory system
Two-component_regulatory_system
Preservative for donor organs
Histidine-tryptophan-ketoglutarate (HTK) is a high-flow, low-potassium preservation solution used for organ transplantation. The solution was initially
Histidine-tryptophan-ketoglutarate
Histidine-tryptophan-ketoglutarate
Phenylalanine(histidine) transaminase (EC 2.6.1.58) is an enzyme that catalyzes the chemical reaction phenylalanine + pyruvic acid phenylpyruvic
Phenylalanine(histidine) transaminase
Phenylalanine(histidine)_transaminase
Enzyme that converts histidine to histamine
enzyme histidine decarboxylase (EC 4.1.1.22, HDC) is transcribed on chromosome 15, region q21.1-21.2, and catalyzes the decarboxylation of histidine to form
Histidine_decarboxylase
Chemical compound
Carnosine (beta-alanyl-L-histidine) is a dipeptide molecule, made up of the amino acids beta-alanine and histidine. It is highly concentrated in muscle
Carnosine
In enzymology, a histidine–tRNA ligase (EC 6.1.1.21) is an enzyme that catalyzes the chemical reaction ATP + L-histidine + tRNAHis ⇌ {\displaystyle \rightleftharpoons
Histidine–tRNA_ligase
Chemical data page
number 200-745-3 (D-histidine) ^a EINECS number 206-513-8 (L-histidine) ^a CID 71083 from PubChem (D-histidine) ^a CID 6274 from PubChem (L-histidine)
Histidine_(data_page)
Protein domain
Histidine phosphotransfer domains and histidine phosphotransferases (both often abbreviated HPt) are protein domains involved in the "phosphorelay" form
Histidine phosphotransfer domain
Histidine_phosphotransfer_domain
Glycoprotein
Histidine-rich glycoprotein (HRG) is a glycoprotein that in humans is encoded by the HRG gene. The HRG protein is produced in the liver, and it could
Histidine-rich_glycoprotein
Amino acids required in diet since they can not be synthesized in body
isoleucine, leucine, methionine, phenylalanine, tryptophan, threonine, histidine, and lysine. Six other amino acids are considered conditionally essential
Essential_amino_acid
Topics referred to by the same term
(working title: Huh?), a 2012 album by Spiritualized HUH-tag (histidine-hydrophobic-histidine), a DNA binding protein Harvard University Herbaria, Cambridge
Huh
Family of enzymes important in cell signaling
Histidine kinases (HK) are multifunctional, and in non-animal kingdoms, typically transmembrane, proteins of the transferase class of enzymes that play
Histidine_kinase
is an Indian-born Canadian biochemist known for his research on copper-histidine therapy in human blood, which led to one of the first effective treatments
Bibudhendra_Sarkar
Class of enzymes
of methylation reactions: histidine + 3 SAM hercynine + 3 SAH The overall effect is to convert L-histidine to its trimethylated product
Dimethylhistidine N-methyltransferase
Dimethylhistidine_N-methyltransferase
Amino acid having an aromatic ring
standard amino acids, histidine, phenylalanine, tryptophan, tyrosine, are classified as aromatic. Aromatic amino acids, excepting histidine, absorb ultraviolet
Aromatic_amino_acid
Histidine ammonia-lyase (EC 4.3.1.3, histidase, histidinase) is an enzyme that in humans is encoded by the HAL gene. It converts histidine into ammonia
Histidine_ammonia-lyase
Set of biochemical processes
repression or derepression of histidine synthesis is the concentration of histidine charged tRNAs. The regulation of histidine is actually quite simple considering
Amino_acid_synthesis
Topics referred to by the same term
dictionary. Protein histidine kinase may refer to: Histidine kinase, an enzyme Protein-histidine tele-kinase, an enzyme Protein-histidine pros-kinase, an
Protein_histidine_kinase
Naturally occurring amino acid
(EGT) is a naturally occurring amino acid and is a thiourea derivative of histidine, containing a sulfur atom on the imidazole ring. This compound occurs
Ergothioneine
peptide histidine isoleucine, is a peptide which functions as a hormone. This peptide contains a composition of 27 amino acids with histidine on the N-terminus
Peptide_PHI
Class of enzymes
L-histidine + beta-alanine ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + carnosine The 3 substrates of this enzyme are ATP, L-histidine, and
Carnosine_synthase
Chemical process of introducing a phosphate
containing phosphorylated histidine, aspartate, glutamate, cysteine, arginine and lysine in HeLa cell extracts. Histidine phosphorylates at both the
Phosphorylation
Chemical compound
d-Fructose-l-histidine (FruHis) is a ketosamine combining the d-isomer of fructose and the l-isomer of histidine into a functional group. FruHis is present
D-Fructose-L-histidine
Class of enzymes
ATP:protein-L-histidine N-pros-phosphotransferase, histidine kinase, histidine protein kinase, protein histidine kinase, protein kinase (histidine), and HK2
Protein-histidine_pros-kinase
Proteins or protein domains that chelate a metal ion
metal ion. Binding of metal ions via chelation is usually achieved via histidines or cysteines. In some cases this is a necessary part of their folding
Metal-binding_protein
RNA family
The Histidine operon leader is an RNA element found in the bacterial histidine operon. At least 6 amino acid operons are known to be regulated by attenuation
Histidine_operon_leader
Protein which mediates cellular response in two-component regulatory systems
are coupled to specific histidine kinases which serve as sensors of environmental changes. Response regulators and histidine kinases are two of the most
Response_regulator
Foodborne illness that typically results from eating spoiled fish
bluefish, amberjack, and marlin. These fish naturally have high levels of histidine, which is converted to histamine when bacterial growth occurs during improper
Scombroid_food_poisoning
Protein-coding gene in humans
Histidine triad nucleotide-binding protein 1 also known as adenosine 5'-monophosphoramidase is an enzyme that in humans is encoded by the HINT1 gene.
HINT1
Drug that blocks histamine or histamine agonists
Examples include: Thioperamide JNJ 7777120 VUF-6002 Inhibit the action of histidine decarboxylase: Tritoqualine Catechin Mast cell stabilizers are drugs which
Antihistamine
Chemical compound
(formally trans-Urocanic acid) is an intermediate in the catabolism of L-histidine. The cis-urocanic acid isomer is rare. Urocanic acid is a chromophore
Urocanic_acid
Chemical compound
Imidazoleglycerol-phosphate dehydratase is an enzyme catalyzing the sixth step of histidine production. 3-AT is also a nonselective systemic triazole herbicide used
3-Amino-1,2,4-triazole
Chemical compound
monophosphate (OMP). Histidine is an essential amino acid that is not synthesized de novo in humans. Like nucleotides, biosynthesis of histidine is initiated
Ribose_5-phosphate
Chemical compound
Anserine is also found in human kidney. The pKa of the imidazole ring of histidine, when contained in anserine, is 7.04. Anserine can be synthesized through
Anserine
Biological testing method
mutations in genes involved in histidine biosynthesis. These strains are auxotrophic mutants, i.e. they require histidine for growth, but cannot produce
Ames_test
Evolutionary conserved protein domain
Histidine Kinase, MutL) is an evolutionary conserved protein domain. It is an ATPase domain found in several ATP-binding proteins such as histidine kinase
GHKL_domain
Chemical compound
ring system is present in important biological building blocks, such as histidine and the related hormone histamine. Many drugs contain an imidazole ring
Imidazole
Class of chemical compounds
practical importance. In contrast, imidazole derivatives, especially histidine, are pervasive ligands in biology where they bind metal cofactors. Only
Transition metal imidazole complex
Transition_metal_imidazole_complex
Metalloprotein that binds with oxygen
protein via the N atoms of the imidazole ring of F8 histidine residue (also known as the proximal histidine) below the porphyrin ring. A sixth position can
Hemoglobin
Class of enzymes
ATP:protein-L-histidine N-tele-phosphotransferase, histidine kinase, histidine protein kinase, protein histidine kinase, protein kinase (histidine), and HK3
Protein-histidine_tele-kinase
Chemical compound
amidophosphoribosyltransferase acts upon PRPP to create phosphoribosylamine. The histidine biosynthesis pathway involves the reaction between PRPP and ATP, which
Phosphoribosyl_pyrophosphate
Antihistamine medication
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Loratadine
Chemical compound
product that is produced in the body via the enzymatic methylation of histidine during peptide bond synthesis and the methylation of actin and myosin
3-Methylhistidine
Protein found in Homo sapiens
particularly high isoelectric point due to the relatively high presence of histidine in its primary structure. It is also relatively low in the sulfur-containing
Filaggrin
Antihistamine medication
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Fexofenadine
Protein family
Histidine-containing phosphocarrier protein (HPr) is a small cytoplasmic protein that is a component of the phosphoenolpyruvate-dependent sugar phosphotransferase
Phosphocarrier_protein
Property of hemoglobin and oxygenation
tetramer containing 38 histidine residues (buffering power of plasma proteins is far less and also almost entirely accounted by histidine residues). The hemes
Haldane_effect
Enzyme that adds phosphate groups to other proteins
kinases that phosphorylate other amino acids, including histidine kinases that phosphorylate histidine residues. Eukaryotic protein kinases are enzymes that
Protein_kinase
Class of enzymes
2-(3-carboxy-3-aminopropyl)-L-histidine ⇌ {\displaystyle \rightleftharpoons } S-adenosyl-L-homocysteine + 2-[3-carboxy-3-(methylammonio)propyl]-L-histidine Thus, the two
Diphthine_synthase
Organic compound involved in immune responses
derived from the decarboxylation of the amino acid histidine, a reaction catalyzed by the enzyme L-histidine decarboxylase. It is a hydrophilic vasoactive
Histamine
Chemical compound
heterocycle and as such mimics for various nucleoside bases as well as histidine and histamine. With the N-methyl group, this particular derivative of
1-Methylimidazole
InterPro Family
PACAP-38, PACAP-27, peptide histidine isoleucineamide (PHI), peptide histidine methionineamide (PHM) and peptide histidine valine (PHV). “PACAP type II
Vasoactive intestinal peptide receptor
Vasoactive_intestinal_peptide_receptor
bacteria. The cytokinin signaling pathway consists of sensor kinases, histidine phosphotransfer proteins, and response regulators. In this system, cytokinin
Cytokinin signaling and response regulator protein
Cytokinin_signaling_and_response_regulator_protein
Chemical compound
Histidine methyl ester (HME) is an irreversible histidine decarboxylase inhibitor. It is the methyl ester of histidine. Histidine decarboxylase α-Fluoromethylhistidine
Histidine_methyl_ester
Protein family
In molecular biology, the HAMP domain (present in Histidine kinases, Adenylate cyclases, Methyl accepting proteins and Phosphatases) is an approximately
HAMP_domain
Chemical compound
and on laboratory utensils. It does so by the covalent modification of histidine (most strongly), lysine, cysteine, and tyrosine residues. DEPC-treated
Diethyl_pyrocarbonate
Protein-coding gene in the species Homo sapiens
Histidine triad nucleotide binding protein 2 (HINT2) is a mitochondrial protein that in humans is encoded by the HINT2 gene on chromosome 9. This protein
HINT2
Amino acid that is incorporated biosynthetically into proteins during translation
they are called essential amino acids. The essential amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan
Proteinogenic_amino_acid
Species of grass cultivated as a food crop
Phenylalanine 0.150 g Tyrosine 0.123 g Valine 0.185 g Arginine 0.131 g Histidine 0.089 g Alanine 0.295 g Aspartic acid 0.244 g Glutamic acid 0.636 g Glycine
Maize
Chemical compound
carnosine levels are limited by the amount of available β-alanine, not histidine. Supplementation with β-alanine has been shown to increase the concentration
Β-Alanine
Shortest peptide molecule, containing two amino acids joined by a single peptide bond
artificial sweetener. Carnosine (beta-alanyl-L-histidine) and Anserine (beta-alanyl-N-methyl histidine) are highly concentrated in muscle and brain tissues
Dipeptide
Protein-coding gene in the species Homo sapiens
Bis(5'-adenosyl)-triphosphatase also known as fragile histidine triad protein (FHIT) is an enzyme that in humans is encoded by the FHIT gene. FHIT is
FHIT
Catalysis of chemical reactions by enzymes
oxyanion and the increase in the pKa of the histidine, while the proton transfer from the serine to the histidine is not catalyzed significantly since it
Enzyme_catalysis
phosphate to L-histidinol phosphate (a precursor to the amino acid histidine) using L-glutamic acid as the source of the amino group that is transferred
Histidinol-phosphate transaminase
Histidinol-phosphate_transaminase
Chemical compound
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Betahistine
Anti-hypertension medication
HDCTooltip Histidine decarboxylase Substrates→Products: L-Histidine→Histamine Inhibitors: Catechin Alpha-Fluoromethylhistidine Histidine methyl ester
Hydralazine
Small domesticated carnivorous mammal
aspartic acid; but in cats, they instead detect inosine monophosphate and histidine. These molecules are particularly enriched in tuna. Researchers argue
Cat
Enzymes that block actions of protein kinases
kinases that phosphorylate other amino acids, including histidine kinases that phosphorylate histidine residues. Phosphorylation regulates many biological
Protein_kinase_inhibitor
Chemical compound
Diphthamide is a post-translationally modified histidine amino acid found in archaeal and eukaryotic elongation factor 2 (eEF-2). Dipthamide is named
Diphthamide
Xaa-His dipeptidase (EC 3.4.13.3, aminoacylhistidine dipeptidase, carnosinase, homocarnosinase, dipeptidase M) is an enzyme. This enzyme catalyses the
X-His_dipeptidase
Process of introducing a phosphate group on to a protein
acids most commonly phosphorylated are serine, threonine, tyrosine, and histidine. These phosphorylations play important and well-characterized roles in
Protein_phosphorylation
Organic compounds containing amine and carboxylic groups
and histidine (His, H). Arginine has a charged guanidino group and lysine a charged alkyl amino group, and are fully protonated at pH 7. Histidine's imidazole
Amino_acid
Active form of vitamin B6
histamine. Pyridoxal phosphate is a cofactor of L-histidine decarboxylase. This allows for conversion of histidine into histamine. This reaction takes place in
Pyridoxal_phosphate
Protein family
catalyzes the chemical reaction L-histidinol + 2 NAD+ 2 H+ 2 H+ L-histidine + 2 NADH The two substrates of this enzyme are L-histidinol and oxidised
Histidinol_dehydrogenase
Class of enzymes
protein-histidine N-methyltransferase (EC 2.1.1.85) is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + protein L-histidine ⇌ {\displaystyle
Protein-histidine N-methyltransferase
Protein-histidine_N-methyltransferase
Blue-green algal genus used in food
Phenylalanine 2.777 g Tyrosine 2.584 g Valine 3.512 g Arginine 4.147 g Histidine 1.085 g Alanine 4.515 g Aspartic acid 5.793 g Glutamic acid 8.386 g Glycine
Spirulina (dietary supplement)
Spirulina_(dietary_supplement)
Family of digestive enzymes
relay system, implying the abstraction of protons from serine to histidine and from histidine to aspartate, but owing to evidence provided by NMR that the
Trypsin
Class of enzymes
coordinated in three positions by histidine side-chains. The fourth coordination position is occupied by water. A fourth histidine is close to the water ligand
Carbonic_anhydrase
Class of enzymes
synthetase. This enzyme catalyses the first step in the biosynthesis of histidine in bacteria, fungi and plants. It is a member of the larger phosphoribosyltransferase
ATP_phosphoribosyltransferase
Yellow legume seeds used as food
g Phenylalanine 1.44 g Tyrosine 1.36 g Valine 1.51 g Arginine 3.88 g Histidine 1.03 g Alanine 1.3 g Aspartic acid 3.88 g Glutamic acid 8.69 g Glycine
Lupin_bean
Protein family
autophosphorylating the Histidine residue and this triggers sporulation. Sda prevents this pathway from occurring by inhibiting the histidine kinase. More specifically
Sda_protein_domain
Chemical compound
histamine, leading to increased histamine levels. α-Fluoromethylhistidine Histidine methyl ester Thakkar, Mahesh M. (February 2011). "Histamine in the regulation
SKF-91488
Allergy medication
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Desloratadine
Antihistamine medication
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Bilastine
Protein domain
tetrahydrofolate as part of histidine catabolism. It catalyses two reactions. In the first, N-formimidoyl-L-glutamate (from histidine) transfers its formimidoyl
Glutamate formimidoyltransferase
Glutamate_formimidoyltransferase
Pharmaceutical compound
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
ALTO-203
Group of bromo derivatives of fluorescein used as red dye
compounds like proteins containing basic amino acid residues such as histidine, arginine and lysine, and stains them dark red or pink as a result of
Eosin
Proteins that contain one or more copper ions as prosthetic groups
centres (T1Cu) are characterized by a single copper atom coordinated by two histidine residues and a cysteine residue in a trigonal planar structure, and a
Copper_protein
Enzyme
phosphoenolpyruvate + protein histidine ⇌ {\displaystyle \rightleftharpoons } pyruvate + protein Npi-phospho-L-histidine Thus, the two substrates of this
Phosphoenolpyruvate—protein phosphotransferase
Phosphoenolpyruvate—protein_phosphotransferase
Medication that reduces stomach acid
modulators H1 Agonists 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists First-generation (sedating): 4-Methyldiphenhydramine
Famotidine
Nutrient for the human body
histidine. There has been debate as to whether there are eight or nine essential amino acids. The consensus seems to lean toward nine since histidine
Protein_(nutrient)
Transcription factor found in Streptococcus pyogenese
speB-inducing peptide (SIP) acting in conjunction with a pH sensitive histidine switch. Observations of an extracellularly secreted glucosyltransferase
RopB transcriptional regulator
RopB_transcriptional_regulator
Biological process to convert light into chemical energy
& glucogenic amino acids Amino acids Shikimate Aromatic amino acids & histidine Ascorbate (vitamin C) δ-ALA Bile pigments Hemes Cobalamins (vitamin B12)
Photosynthesis
Chemical test for amino acid detection
reaction is a chemical test used for detecting the presence of tyrosine or histidine in proteins. It is named after German chemist Hermann Pauly, who first
Pauly_reaction
Histidine metabolism disease that involves a deficiency of the enzyme histidase
enzyme histidase. Histidase is needed for the metabolism of the amino acid histidine. Although originally thought to be linked to multiple developmental disorders
Histidinemia
Juvenile cat
for kittens. A dietary level of approximately 0.3% histidine is necessary for kittens since histidine-free diets cause weight loss. Tryptophan is required
Kitten
HISTIDINE
HISTIDINE
HISTIDINE
HISTIDINE
Boy/Male
Indian
Hair
Boy/Male
Indian
Unique; None of Second
Boy/Male
Muslim
Rememberer of Allah, Intelligent
Girl/Female
Indian
Mother of gods
Girl/Female
Arabic, Hindu, Indian, Muslim, Punjabi, Sikh
God's Mehar; Good Wishes; Good Girl; Courtesy of God
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
One who Embodies Grace and Charm; Handsome
Boy/Male
Tamil
Siddu | ஸீடà¯à®Ÿà¯à®‚Â
Lord Shiva
Boy/Male
Arabic, Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Muslim, Telugu
A Kind of Tree; A Tree with Very Dark Bark
Boy/Male
Muslim
Servant of the glory (Allah)
Boy/Male
Hindu, Indian, Punjabi, Sikh
One Absorbed in Divine Light and Knowledge
HISTIDINE
HISTIDINE
HISTIDINE
HISTIDINE
HISTIDINE