Recombinant Human Glyceraldehyde-3-Phosphate Dehydrogenase, Testis-Specific (GAPDHS) Protein (His)

Name: Recombinant Human Glyceraldehyde-3-Phosphate Dehydrogenase, Testis-Specific (GAPDHS) Protein (His)
Brand: Beta LifeScience
SKU: BLC-09164P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Glyceraldehyde-3-Phosphate Dehydrogenase, Testis-Specific (GAPDHS) Protein (His) is produced by our Baculovirus expression system. This is a protein fragment.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	O14556
Target Symbol	GAPDHS
Synonyms	G3PT_HUMAN; GAPD2; GAPDH 2 ; GAPDH-2; GAPDH2; GAPDHS; GAPDS; Glyceraldehyde 3 phosphate dehydrogenase spermatogenic; Glyceraldehyde 3 phosphate dehydrogenase; testis specific; Glyceraldehyde-3-phosphate dehydrogenase; HSD 35; HSD35; Spermatogenic cell specific glyceraldehyde 3 phosphate dehydrogenase 2; Spermatogenic cell-specific glyceraldehyde 3-phosphate dehydrogenase 2; Spermatogenic glyceraldehyde 3 phosphate dehydrogenase; Spermatogenic glyceraldehyde-3-phosphate dehydrogenase; testis-specific
Species	Homo sapiens (Human)
Expression System	Baculovirus
Tag	N-6His
Target Protein Sequence	MVSVARELTVGINGFGRIGRLVLRACMEKGVKVVAVNDPFIDPEYMVYMFKYDSTHGRYKGSVEFRNGQLVVDNHEISVYQCKEPKQIPWRAVGSPYVVESTGVYLSIQAASDHISAGAQRVVISAPSPDAPMFVMGVNENDYNPGSMNIVSNASCTTNCLAPLAKVIHERFGIVEGLMTTVHSYTATQKTVDGPSRKAWRDGRGAHQNIIPASTGAAKAVTKVIPELKGKLTGMAFRVPTPDVSVVDLTCRLAQPAPYSAIKEAVKAAAKGPMAGILAYTEDEVVSTDFLGDTHSSIFDAKAGIALNDNFVKLISWYDNEYGYSHRVVDLLRYMFSRDK
Expression Range	69-408aa
Protein Length	Partial
Mol. Weight	39.1 kDa
Research Area	Signal Transduction
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	May play an important role in regulating the switch between different pathways for energy production during spermiogenesis and in the spermatozoon. Required for sperm motility and male fertility.
Subcellular Location	Cytoplasm.
Protein Families	Glyceraldehyde-3-phosphate dehydrogenase family
Database References	HGNC: 24864 OMIM: 609169 KEGG: hsa:26330 STRING: 9606.ENSP00000222286 UniGene: PMID: 29626473 It is assumed that the deficiency in GAPDS observed in most dysplasia of the fibrous sheath sperm samples is ascribable to a disorder in the regulation of GAPDS expression caused by the mutation in the intron region of GAPDS gene. PMID: 27135296 This result implies that GAPDHS participates in specific signal-transduction pathways. PMID: 26660717 Structural basis for the NAD binding cooperativity and catalytic characteristics of sperm-specific glyceraldehyde-3-phosphate dehydrogenase PMID: 25936797 GAPDS protein was expressed in both Sertoli cells and elongated sperms. The expression of GAPDS gradually increased with age in the epididymis. PMID: 23306140 Data indicate that the positive expression of studied genes fertilization rate for GAPDHS positive subset was 66%, ACR - 71%, SPATA22 - 68%, MND1 - 70%, pregnancy rates were 8%, 6%, 18% and 36% respectively. PMID: 23675907 the expression of GAPDS in melanoma cells may facilitate glycolysis and prevent the induction of apoptosis. PMID: 23026046 The chaperonin TRiC was shown to assist an ATP-dependent refolding of recombinant forms of GAPDS. PMID: 21995946 Structure and kinetic characterization of human sperm-specific glyceraldehyde-3-phosphate dehydrogenase, GAPDS. PMID: 21269272 Human his-GAPDHS expressed in baculovirus-infected insect cells is homotetrameric. PMID: 20828617 Data suggest that high stability of the sperm-specific GAPDS is of importance for the efficiency of fertilization. PMID: 20833277 We have concluded that a simple nuclear localization of GAPDH does not induce apoptosis, and that MPP+-induced apoptosis is not caused by nuclear translocation of GAPDH. PMID: 16324157 Comparative study of the amino acid sequences of mammalian GAPDs revealed conservative cysteine residues (C21, C94, and C150) that are specific for the sperm isoenzyme and absent in the somatic isoenzyme. PMID: 18298375 Characterization of the rat GAPDHS and comparison to the human and mouse enzymes. PMID: 16700075 GAPD2 enzymatic activity is present in human sperm. GAPD2 is tightly bound to sperm and most enzymatic activity is not released by permeabilization with CHAPS detergent. GAPD2 is restricted in location to the principal piece of the sperm flagellum. PMID: 10714828

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.