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AB307476

Recombinant Human FGL1 protein (Fc Chimera)

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Recombinant Human FGL1 protein (Fc Chimera) is a Human Full Length protein, in the 23 to 312 aa range, expressed in HEK 293 cells, with >95%, <0.005 EU/µg endotoxin level, suitable for HPLC, Mass Spec, SDS-PAGE.

View Alternative Names

HFREP1, FGL1, Fibrinogen-like protein 1, HP-041, Hepassocin, Hepatocyte-derived fibrinogen-related protein 1, Liver fibrinogen-related protein 1, HPS, HFREP-1, LFIRE-1

3 Images
Mass Spectrometry - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)
  • Mass Spec

Supplier Data

Mass Spectrometry - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)

Mass determination by ESI-TOF. Predicted MW is 59956.08 Da (+/-10 Da by ESI-TOF). Observed MW is 59830.03 Da.

HPLC - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)
  • HPLC

Supplier Data

HPLC - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)

HPLC analysis of ab307476

SDS-PAGE - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human FGL1 protein (Fc Chimera) (AB307476)

SDS-PAGE analysis of ab307476

Key facts

Purity

>95% HPLC

Endotoxin level

<0.005 EU/µg

Expression system

HEK 293 cells

Tags

Fc tag C-Terminus

Applications

HPLC, SDS-PAGE, Mass Spec

applications

Biologically active

No

Accession

Q08830

Animal free

Yes

Carrier free

No

Species

Human

Reconstitution

Reconstitute in PBS

Storage buffer

pH: 7.4 Constituents: 10.26% Trehalose, 0.727% Dibasic monohydrogen potassium phosphate, 0.248% Potassium phosphate monobasic

storage-buffer

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Reactivity data

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

[{"sequence":"LEDCAQEQMRLRAQVRLLETRVKQQQVKIKQLLQENEVQFLDKGDENTVIDLGSKRQYADCSEIFNDGYKLSGFYKIKPLQSPAEFSVYCDMSDGGGWTVIQRRSDGSENFNRGWKDYENGFGNFVQKHGEYWLGNKNLHFLTTQEDYTLKIDLADFEKNSRYAQYKNFKVGDEKNFYELNIGEYSGTAGDSLAGNFHPEVQWWASHQRMKFSTWDRDHDNYEGNCAEEDQSGWWFNRCHSANLNGVYYSGPYTAKTDNGIVWYTWHGWWYSLKSVVMKIRPNDFIPNVI","proteinLength":"Full Length","predictedMolecularWeight":"59.96 kDa","actualMolecularWeight":"59.83 kDa","aminoAcidEnd":312,"aminoAcidStart":23,"nature":"Recombinant","expressionSystem":"HEK 293 cells","accessionNumber":"Q08830","tags":[{"tag":"Fc","terminus":"C-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
Ambient
Appropriate long-term storage conditions
Ambient
False
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Supplementary information

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

Fibrinogen-like protein 1 (FGL1) also known as Hepassocin plays a significant role in modulating immune responses. FGL1 is a member of the fibrinogen family with a molecular mass of approximately 31 kDa. This protein is widely expressed in the liver and is also found in other tissues like the pancreas and lungs. Its structural homology to fibrinogen suggests potential binding capabilities with similar ligands influencing its mechanical actions in cellular processes.
Biological function summary

FGL1 modulates the immune system and maintains its homeostasis. It functions primarily as a ligand for the immune checkpoint receptor LAG-3. This FGL1-LAG-3 interaction inhibits T-cell activity leading to immune tolerance and helping prevent autoimmunity. FGL1 while not a part of a complex demonstrates significant standalone biological activity by affecting immune responses especially under pathological conditions.

Pathways

FGL1 integrates into the immune regulatory framework. It exerts its effects mainly through the immune checkpoint pathway impacting T-cell regulation. In addition to LAG-3 FGL1 interacts closely with the PD-1/PD-L1 pathway which is also important in checkpoint inhibition and immune evasion mechanisms. These pathways together orchestrate the immune surveillance system and play roles in maintaining immune equilibrium.

FGL1 has received attention in cancer particularly in its role of suppressing anti-tumor immunity. Its interaction with LAG-3 makes it a potential target for cancer immunotherapy as high FGL1 levels correlate with poor prognosis in various cancers. Additionally it has implications in autoimmune diseases where its regulation of T-cell activity prevents excessive immune responses. By modulating LAG-3 activity FGL1 emerges as a therapeutic target of interest in autoimmune conditions presenting new opportunities for managing such disorders.
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Specifications

Form

Lyophilized

Additional notes

SDS-PAGE >= 95%

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General info

Function

Immune suppressive molecule that inhibits antigen-specific T-cell activation by acting as a major ligand of LAG3 (PubMed : 30580966). Responsible for LAG3 T-cell inhibitory function (PubMed : 30580966). Binds LAG3 independently from MHC class II (MHC-II) (PubMed : 30580966). Secreted by, and promotes growth of, hepatocytes (PubMed : 11470158, PubMed : 19880967).

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Product protocols

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Target data

Immune suppressive molecule that inhibits antigen-specific T-cell activation by acting as a major ligand of LAG3 (PubMed : 30580966). Responsible for LAG3 T-cell inhibitory function (PubMed : 30580966). Binds LAG3 independently from MHC class II (MHC-II) (PubMed : 30580966). Secreted by, and promotes growth of, hepatocytes (PubMed : 11470158, PubMed : 19880967).
See full target information FGL1
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