SPAG4 Protein (AA 1-437) (Strep Tag)

Catalog No. ABIN3077081

Product Details

Target: SPAG4 (Sperm Associated Antigen 4 (SPAG4))

Protein Type: Recombinant

Protein Characteristics: AA 1-437

Origin: Human

Source: Tobacco (Nicotiana tabacum)

Purification tag / Conjugate: This SPAG4 protein is labelled with Strep Tag.

Application: ELISA, Western Blotting (WB), SDS-PAGE (SDS)

Sequence: MRRSSRPGSA SSSRKHTPNF FSENSSMSIT SEDSKGLRSA EPGPGEPEGR RARGPSCGEP ALSAGVPGGT TWAGSSQQKP APRSHNWQTA CGAATVRGGA SEPTGSPVVS EEPLDLLPTL DLRQEMPPPR VFKSFLSLLF QGLSVLLSLA GDVLVSMYRE VCSIRFLFTA VSLLSLFLSA FWLGLLYLVS PLENEPKEML TLSEYHERVR SQGQQLQQLQ AELDKLHKEV STVRAANSER VAKLVFQRLN EDFVRKPDYA LSSVGASIDL QKTSHDYADR NTAYFWNRFS FWNYARPPTV ILEPHVFPGN CWAFEGDQGQ VVIQLPGRVQ LSDITLQHPP PSVEHTGGAN SAPRDFAVFG LQVYDETEVS LGKFTFDVEK SEIQTFHLQN DPPAAFPKVK IQILSNWGHP RFTCLYRVRA HGVRTSEGAE GSAQGPH
Sequence without tag. The proposed Strep-Tag is based on experience s with the expression system, a different complexity of the protein could make another tag necessary. In case you have a special request, please contact us.

Characteristics: Key Benefits:

• Made in Germany - from design to production - by highly experienced protein experts.
• Protein expressed with ALiCE® and purified by multi-step, protein-specific process to ensure correct folding and modification.
• These proteins are normally active (enzymatically functional) as our customers have reported (not tested by us and not guaranteed).
• State-of-the-art algorithm used for plasmid design (Gene synthesis).

This protein is a made-to-order protein and will be made for the first time for your order. Our experts in the lab will ensure that you receive a correctly folded protein.

The big advantage of ordering our made-to-order proteins in comparison to ordering custom made proteins from other companies is that there is no financial obligation in case the protein cannot be expressed or purified.

Expression System:

• ALiCE®, our Almost Living Cell-Free Expression System is based on a lysate obtained from Nicotiana tabacum c.v.. This contains all the protein expression machinery needed to produce even the most difficult-to-express proteins, including those that require post-translational modifications.
• During lysate production, the cell wall and other cellular components that are not required for protein production are removed, leaving only the protein production machinery and the mitochondria to drive the reaction. During our lysate completion steps, the additional components needed for protein production (amino acids, cofactors, etc.) are added to produce something that functions like a cell, but without the constraints of a living system - all that's needed is the DNA that codes for the desired protein!

Concentration:

• The concentration of our recombinant proteins is measured using the absorbance at 280nm.
• The protein's absorbance will be measured in several dilutions and is measured against its specific reference buffer.
• We use the Expasy's ProtParam tool to determine the absorption coefficient of each protein.

Purification: Two step purification of proteins expressed in Almost Living Cell-Free Expression System (ALiCE®):

1. In a first purification step, the protein is purified from the cleared cell lysate using StrepTag capture material. Eluate fractions are analyzed by SDS-PAGE.
2. Protein containing fractions of the best purification are subjected to second purification step through size exclusion chromatography. Eluate fractions are analyzed by SDS-PAGE and Western blot.

Purity: >80 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.

Endotoxin Level: Low Endotoxin less than 1 EU/mg (< 0.1 ng/mg)

Grade: Crystallography grade

Application Details

Application Notes: In addition to the applications listed above we expect the protein to work for functional studies as well. As the protein has not been tested for functional studies yet we cannot offer a guarantee though.

Comment:

ALiCE®, our Almost Living Cell-Free Expression System is based on a lysate obtained from Nicotiana tabacum c.v.. This contains all the protein expression machinery needed to produce even the most difficult-to-express proteins, including those that require post-translational modifications.
During lysate production, the cell wall and other cellular components that are not required for protein production are removed, leaving only the protein production machinery and the mitochondria to drive the reaction. During our lysate completion steps, the additional components needed for protein production (amino acids, cofactors, etc.) are added to produce something that functions like a cell, but without the constraints of a living system - all that's needed is the DNA that codes for the desired protein!

Restrictions: For Research Use only

Handling

Format: Liquid

Buffer: The buffer composition is at the discretion of the manufacturer. If you have a special request, please contact us.

Handling Advice: Avoid repeated freeze-thaw cycles.

Storage: -80 °C

Storage Comment: Store at -80°C.

Expiry Date: Unlimited (if stored properly)

Target Details

Target: SPAG4 (Sperm Associated Antigen 4 (SPAG4))

Alternative Name: SPAG4 (SPAG4 Products)

Synonyms: MGC133822 Protein, CT127 Protein, SUN4 Protein, 1700041K21Rik Protein, MNCb-0953 Protein, Sun4 Protein, mKIAA4118 Protein, sperm associated antigen 4 Protein, SPAG4 Protein, Spag4 Protein

Background: Sperm-associated antigen 4 protein (Outer dense fiber-associated protein SPAG4) (SUN domain-containing protein 4),FUNCTION: Involved in spermatogenesis. Required for sperm head formation but not required to establish and maintain general polarity of the sperm head. Required for anchoring and organization of the manchette. Required for targeting of SUN3 and probably SYNE1 through a probable SUN1:SYNE3 LINC complex to the nuclear envelope and involved in accurate posterior sperm head localization of the complex. May anchor SUN3 the nuclear envelope. Involved in maintenance of the nuclear envelope integrity. May assist the organization and assembly of outer dense fibers (ODFs), a specific structure of the sperm tail. {ECO:0000250|UniProtKB:O55034, ECO:0000250|UniProtKB:Q9JJF2}.

Molecular Weight: 48.2 kDa

UniProt: Q9NPE6