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AB139251

Recombinant Human AICDA protein (denatured) (His tag N-Terminus)

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Recombinant Human AICDA protein (denatured) (His tag N-Terminus) is a Human Full Length protein, in the 1 to 198 aa range, expressed in Escherichia coli, with >85%, suitable for SDS-PAGE.

View Alternative Names

AID, AICDA, Single-stranded DNA cytosine deaminase, Activation-induced cytidine deaminase, Cytidine aminohydrolase

1 Images
SDS-PAGE - Recombinant Human AICDA protein (denatured) (His tag N-Terminus) (AB139251)
  • SDS-PAGE

Unknown

SDS-PAGE - Recombinant Human AICDA protein (denatured) (His tag N-Terminus) (AB139251)

15% SDS-PAGE analysis of 3 µg ab139251.

Key facts

Purity

>85% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

Q9GZX7

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 10% Glycerol (glycerin, glycerine), 2.4% Urea, 0.32% Tris HCl

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Sequence info

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMDSLLMNRRKFLYQFKNVRWAKGRRETYLCYVVKRRDSATSFSLDFGYLRNKNGCHVELLFLRYISDWDLDPGRCYRVTWFTSWSPCYDCARHVADFLRGNPNLSLRIFTARLYFCEDRKAEPEGLRRLHRAGVQIAIMTFKDYFYCWNTFVENHERTFKAWEGLHENSVRLSRQLRRILLPLYEVDDLRDAFRTLGL","proteinLength":"Full Length","predictedMolecularWeight":"26.1 kDa","actualMolecularWeight":null,"aminoAcidEnd":198,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"Q9GZX7","tags":[{"tag":"His","terminus":"N-Terminus"}]}]

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

AICDA also known as activation-induced cytidine deaminase is an enzyme with a molecular mass of approximately 25 kDa. It is expressed in germinal center B cells within the lymphoid tissues particularly in the spleen and lymph nodes. AICDA catalyzes the deamination of cytidine to uridine in single-stranded DNA an essential step in the processes of somatic hypermutation and class switch recombination. These mechanisms are important for antibody diversity and specificity in the adaptive immune response.
Biological function summary

AICDA plays an important role in the adaptive immune system by facilitating the diversification of antibodies. It does not appear to function as part of a larger protein complex but operates independently to induce mutations in variable regions of immunoglobulin genes. This activity enables B cells to produce antibodies with higher affinity and different isotypes important for an effective immune defense system. AICDA’s function ensures the generation of diverse antibody repertoires allowing the immune system to effectively target a wide range of pathogens.

Pathways

AICDA is integral to the immunoglobulin gene diversification pathway. It initiates somatic hypermutation and class switch recombination by deaminating cytosine residues in the DNA of immunoglobulin genes. This action relates AICDA to other proteins involved in DNA repair and error-prone replication such as uracil-DNA glycosylase (UNG) and the mismatch repair proteins like MSH2 and MSH6. AICDA's deamination activity triggers the recruitment of these proteins to introduce mutations and remove uracil residues facilitating the generation of antibody diversity.

Aberrant AICDA activity associates with lymphomas and autoimmune conditions. For example dysregulation of AICDA could contribute to oncogenic mutations leading to non-Hodgkin's lymphoma. Additionally incorrect or unscheduled activation of AICDA might result in the production of autoantibodies implicated in autoimmune disorders like systemic lupus erythematosus (SLE). AICDA’s interaction with DNA repair proteins during misguided activation may lead to genomic instability linking it to both tumorigenesis and autoimmunity.

Specifications

Form

Liquid

General info

Function

Single-stranded DNA-specific cytidine deaminase. Involved in somatic hypermutation (SHM), gene conversion, and class-switch recombination (CSR) in B-lymphocytes by deaminating C to U during transcription of Ig-variable (V) and Ig-switch (S) region DNA. Required for several crucial steps of B-cell terminal differentiation necessary for efficient antibody responses (PubMed : 18722174, PubMed : 21385873, PubMed : 21518874, PubMed : 27716525). May also play a role in the epigenetic regulation of gene expression by participating in DNA demethylation (PubMed : 21496894).

Sequence similarities

Belongs to the cytidine and deoxycytidylate deaminase family.

Post-translational modifications

Ser-38 is the major site whereas Thr-27 is the minor site of phosphorylation. Phosphorylation regulates its class-switch recombination activity.. Probably monoubiquitinated on several residues by RNF126.

Subcellular localisation

Nucleus

Product protocols

Target data

Single-stranded DNA-specific cytidine deaminase. Involved in somatic hypermutation (SHM), gene conversion, and class-switch recombination (CSR) in B-lymphocytes by deaminating C to U during transcription of Ig-variable (V) and Ig-switch (S) region DNA. Required for several crucial steps of B-cell terminal differentiation necessary for efficient antibody responses (PubMed : 18722174, PubMed : 21385873, PubMed : 21518874, PubMed : 27716525). May also play a role in the epigenetic regulation of gene expression by participating in DNA demethylation (PubMed : 21496894).
See full target information AICDA

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