Recombinant Human SEMA4A/Semaphorin B Protein (His Tag)

Specifications

Catalog number

PKSH031007

Size / count

100 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

Semaphorin-4A, also known as Semaphorin-B, SEMA4A, Sema B and SEMAB, is a single-pass type I membrane protein which belongs to thesemaphorin family. It inhibits axonal extension by providing local signals to specify territories inaccessible for growing axons. Semaphorin-4A contains one Ig-like C2-type domain, one PSI domain and one Sema domain. Defects in SEMA4A are the cause of retinitis pigmentosa type 35 (RP35) which leads to degeneration of retinal photoreceptor cells. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. Defects in SEMA4A are also the cause of cone-rod dystrophy type 10 (CORD10) which are inherited retinal dystrophies belonging to the group of pigmentary retinopathies. CORDs are characterized by retinal pigment deposits visible on fundus examination, predominantly in the macular region, and initial loss of cone photoreceptors followed by rod degeneration. Semaphorins are secreted, transmembrane, and GPI-linked proteins, defined by cysteine-rich semaphorin protein domains, that have important roles in a variety of tissues. Semaphorins have been implicated in diverse developmental processes such as axon guidance during nervous system development and regulation of cell migration.

Synonyms

CORD10; RP35; SEMAB; SEMB

UniProt

Q9H3S1

Accession Number

NP_071762.2

Expression System

HEK293 Cells

Tag

C-His

Sequence

Met 1-His 683

Applications

ELISA

Field of Research

Cardiovascular; Neuroscience

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 96 % as determined by reducing SDS-PAGE.

Bioactivity

Measured by its ability to bind biotinylated mouse SEMA4D in a functional ELISA.

Reconstitution

Please refer to the printed manual for detailed information.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

73.4 kDa

Observed Molecular Weight

75-80 kDa

Species

Human