Recombinant Human Complement C1s subcomponent (C1S)

Code CSB-YP003657HU
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Source Yeast
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Code CSB-EP003657HU-B
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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.
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Code CSB-BP003657HU
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Source Baculovirus
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Code CSB-MP003657HU
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
C1S
Uniprot No.
Alternative Names
Basic proline rich peptide IB 1; C1 esterase; C1S; C1S_HUMAN; Complement C1s subcomponent ; Complement C1s subcomponent heavy chain; Complement C1s subcomponent light chain; Complement component 1 s subcomponent; Complement component 1 subcomponent s; FLJ44757
Species
Homo sapiens (Human)
Expression Region
16-688
Target Protein Sequence
EPTMY GEILSPNYPQ AYPSEVEKSW DIEVPEGYGI HLYFTHLDIE LSENCAYDSV QIISGDTEEG RLCGQRSSNN PHSPIVEEFQ VPYNKLQVIF KSDFSNEERF TGFAAYYVAT DINECTDFVD VPCSHFCNNF IGGYFCSCPP EYFLHDDMKN CGVNCSGDVF TALIGEIASP NYPKPYPENS RCEYQIRLEK GFQVVVTLRR EDFDVEAADS AGNCLDSLVF VAGDRQFGPY CGHGFPGPLN IETKSNALDI IFQTDLTGQK KGWKLRYHGD PMPCPKEDTP NSVWEPAKAK YVFRDVVQIT CLDGFEVVEG RVGATSFYST CQSNGKWSNS KLKCQPVDCG IPESIENGKV EDPESTLFGS VIRYTCEEPY YYMENGGGGE YHCAGNGSWV NEVLGPELPK CVPVCGVPRE PFEEKQRIIG GSDADIKNFP WQVFFDNPWA GGALINEYWV LTAAHVVEGN REPTMYVGST SVQTSRLAKS KMLTPEHVFI HPGWKLLEVP EGRTNFDNDI ALVRLKDPVK MGPTVSPICL PGTSSDYNLM DGDLGLISGW GRTEKRDRAV RLKAARLPVA PLRKCKEVKV EKPTADAEAY VFTPNMICAG GEKGMDSCKG DSGGAFAVQD PNDKTKFYAA GLVSWGPQCG TYGLYTRVKN YVDWIMKTMQ ENSTPRED
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, pH 8.0
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
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.

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Target Background

Function
C1s B chain is a serine protease that combines with C1q and C1r to form C1, the first component of the classical pathway of the complement system. C1r activates C1s so that it can, in turn, activate C2 and C4.
Gene References into Functions
  1. TNT003, an inhibitor of the serine protease C1s, prevents complement activation induced by cold agglutinins. PMID: 24695853
  2. Data indicate that complement C1s mRNA level was low in ICR-derived glomerulonephritis (ICGN) mice liver as compared with age-matched ICR mice. PMID: 23989031
  3. A molecular switch governs the interaction between the human complement protease C1s and its substrate, complement C4. PMID: 23592783
  4. Four positively charged amino acids on the serine protease domain appear to form a catalytic exosite that is required for efficient cleavage of C4 in the classical pathway of complement. PMID: 22855709
  5. Detailed mapping of post-translational modifications and insights into the C1r/C1s binding sites. PMID: 20008834
  6. Interaction with the prime side residues at the cleavage point in C1s enhances the affinity of the enzyme for complement 2 and complement 4 substrates; these prime subsite residues mediate positive cooperativity in the cleavage of the substrate. PMID: 14674770
  7. full specificity of the enzyme using a randomized phage display library PMID: 16169853
  8. There are splice variants of C1s mRNA transcripts in normal human cells PMID: 18062908

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Involvement in disease
Complement component C1s deficiency (C1SD); Ehlers-Danlos syndrome, periodontal type, 2 (EDSPD2)
Protein Families
Peptidase S1 family
Database Links

HGNC: 1247

OMIM: 120580

KEGG: hsa:716

STRING: 9606.ENSP00000328173

UniGene: Hs.458355

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