Home
Protein
Recombinant Proteins
Recombinant Human Sperm equatorial segment protein 1 (SPESP1)

Recombinant Human Sperm equatorial segment protein 1 (SPESP1)

Code	CSB-YP022533HU
MSDS	MSDS Datasheet
Size	Pls inquire
Source	Yeast
Have Questions?	Leave a Message or Start an on-line Chat

Code	CSB-EP022533HU
MSDS	MSDS Datasheet
Size	Pls inquire
Source	E.coli
Have Questions?	Leave a Message or Start an on-line Chat

Code	CSB-EP022533HU-B
MSDS	MSDS Datasheet
Size	Pls inquire
Source	E.coli
Conjugate	Avi-tag Biotinylated E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
Have Questions?	Leave a Message or Start an on-line Chat

Code	CSB-BP022533HU
MSDS	MSDS Datasheet
Size	Pls inquire
Source	Baculovirus
Have Questions?	Leave a Message or Start an on-line Chat

Code	CSB-MP022533HU
MSDS	MSDS Datasheet
Size	Pls inquire
Source	Mammalian cell
Have Questions?	Leave a Message or Start an on-line Chat

Product Details
Customer Reviews and Q&A
Target Background

Product Details

Purity

≥85% (SDS-PAGE)

Target Names

SPESP1

Uniprot No.

Q6UW49

Alternative Names

Equatorial segment protein; ESP; Glycosylated 38 kDa sperm protein C 7/8; Glycosylated 38 kDa sperm protein C-7/8; MGC24663; SP-ESP; Sperm equatorial segment protein 1; Sperm equatorial segment protein 1 precursor; SPESP; SPESP_HUMAN; Spesp1

Species

Homo sapiens (Human)

Expression Region

20-350

Target Protein Sequence

Y PSITVTPDEE QNLNHYIQVL ENLVRSVPSG EPGREKKSNS PKHVYSIASK GSKFKELVTH GDASTENDVL TNPISEETTT FPTGGFTPEI GKKKHTESTP FWSIKPNNVS IVLHAEEPYI ENEEPEPEPE PAAKQTEAPR MLPVVTESST SPYVTSYKSP VTTLDKSTGI GISTESEDVP QLSGETAIEK PEEFGKHPES WNNDDILKKI LDINSQVQQA LLSDTSNPAY REDIEASKDH LKRSLALAAA AEHKLKTMYK SQLLPVGRTS NKIDDIETVI NMLCNSRSKL YEYLDIKCVP PEMREKAATV FNTLKNMCRS RRVTALLKVY

Protein Length

Full Length of Mature Protein

Tag Info

Tag type will be determined during the manufacturing process.

The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.

Form

Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer before Lyophilization

Tris/PBS-based buffer, 6% Trehalose.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet

Please contact us to get it.

Customer Reviews and Q&A

■ Customer Reviews

There are currently no reviews for this product.

Submit a Review here

Target Background

Function

Involved in fertilization ability of sperm.

Gene References into Functions

Equatorial segment protein (ESP), a novel 349-amino acid concanavalin-A-binding protein encoded by a two-exon gene (SP-ESP) located on chromosome 15 at q22, has been localized to the equatorial segment of ejaculated human sperm. PMID: 12773409
human alloantigen involved in sperm-egg binding and fusion PMID: 17978344

Subcellular Location

Cytoplasmic vesicle, secretory vesicle, acrosome.

Protein Families

SPESP1 family

Tissue Specificity

Highly expressed in testis, where it is localized in the acrosome of postmeiotic stages of spermiogenesis (round and elongating spermatids and in ejaculated spermatozoa) (at protein level). Poorly expressed in placenta and fetal lung.

Database Links

HGNC: 15570

OMIM: 609399

KEGG: hsa:246777

STRING: 9606.ENSP00000312284

UniGene: Hs.657932

Promotions