表面活性物质关联蛋白D(SPD)重组蛋白

YB039Ra011
Recombinant Surfactant Associated Protein D (SPD)
Organism Species: Homo sapiens (Human)
Instruction manual
FOR IN VITRO USE AND RESEARCH USE ONLY
NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES
10th Edition (Revised in Jan, 2014)
表面活性物质关联蛋白D(SPD)重组蛋白[ PROPERTIES ]
Residues: Ala21~Phe375
Tags: N-terminal His-Tag
Accession: P35247
Host: E. coli
Subcellular Location: Secreted, extracellular
space, extracellular matrix, surface film. Purity: >95%
Endotoxin Level: <1.0EU per 1μg
(determined by the LAL method).
Formulation:Supplied as lyophilized form in PBS, pH7.4,
containing 0.01% sarcosyl.
表面活性物质关联蛋白D(SPD)重组蛋白Predicted isoelectric point: 6.7
Predicted Molecular Mass: 37.0kDa
Accurate Molecular Mass: 43kDa as determined by SDS-PAGE reducing conditions.
Applications: SDS-PAGE; WB; ELISA; IP.
(May be suitable for use in other assays to be determined by the end user.)
Note: The possible reasons that the actual band size differs from the predicted are as follows:
1. Splice variants: Alternative splicing may create different sized proteins from the same gene.
2. Relative charge: The composition of amino acids may affects the charge of the protein.
3. Post-translational modification: Phosphorylation, glycosylation, methylation etc.
4. Post-translation cleavage: Many proteins are synthesized as pro-proteins, and then cleaved to
give the active form.
5. Polymerization of the target protein: Dimerization, multimerization etc.
[ USAGE ]
Reconstitute in sterile PBS, pH7.2-pH7.4.
[ STORAGE AND STABILITY ]
Storage: Avoid repeated freeze/thaw cycles.
Store at 2-8oC for one month.
Aliquot and store at -80oC for 12 months.
Stability Test: The thermal stability is described by the loss rate of the target
protein. The loss rate was determined by accelerated thermal degradation test,
表面活性物质关联蛋白D(SPD)重组蛋白that is, incubate the protein at 37oC for 48h, and no obvious degradation and
precipitation were observed. (Referring from China Biological Products Standard,
which was calculated by the Arrhenius equation.) The loss of this protein is less
than 5% within the expiration date under appropriate storage condition.
[ SEQUENCES ]
The sequence of the target protein is listed below.
AEMKTYS HRT MPSACT LVMC SSVESG LPGR DGRDG REGPR GEKGDPG LPG
AAGQAGMPGQ AGPVGPKGDN GSVGEPGPKG DTGPSGPPGP PGVPGPAGRE
GPLGKQGNIG PQGKPGPKGE AGPKGEVGAP GMQGSAGARG LAGPKGERGV
PGE RGVPGNT GAAGSAGAMG PQGSPGA RGP PGLKGDKGIP GDKGAKGESG
LPDVASLRQQ VEALQGQVQH LQAAFSQYKK VELFPNGQSV GEKIFKTAGF VKPFTEAQLL
CTQAGGQLAS PRSAAENAAL QQLVVAKNEA AFLSMTDSKT EGKFTYPTGE SLVYSNWAPG
EPNDDGGSED CVEIFTNGKW NDRACGEKRL VVCEF
[ REFERENCES ]
1. Lu J., et al. (1992) Biochem. J. 284:795-802. 2. Crouch E., et al. (1993) J. Biol. Chem. 268:2976-2983. 3. Crouch E., et al. (1993) Am. J. Pathol. 142:241-248. 4. Ortega F.J., et al. (2013) Int. J. Obes. Relat. Metab. Disord. 37:1532-1538.