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AB103503

Recombinant Human Tropomyosin 2 protein

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Recombinant Human Tropomyosin 2 protein is a Human Full Length protein, in the 1 to 284 aa range, expressed in Escherichia coli, with >90%, suitable for SDS-PAGE, Mass Spec.

View Alternative Names

TMSB, TPM2, Tropomyosin beta chain, Beta-tropomyosin, Tropomyosin-2

1 Images
SDS-PAGE - Recombinant Human Tropomyosin 2 protein (AB103503)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human Tropomyosin 2 protein (AB103503)

15% SDS-PAGE analysis of 3µg ab103503.

Key facts

Purity

>90% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

Mass Spec, SDS-PAGE

applications

Biologically active

No

Accession

P07951

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 30% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.316% Tris HCl

storage-buffer

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Reactivity data

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

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMDAIKKKMQMLKLDKENAIDRAEQAEADKKQAEDRCKQLEEEQQALQKKLKGTEDEVEKYSESVKEAQEKLEQAEKKATDAEADVASLNRRIQLVEEELDRAQERLATALQKLEEAEKAADESERGMKVIENRAMKDEEKMELQEMQLKEAKHIAEDSDRKYEEVARKLVILEGELERSEERAEVAESRARQLEEELRTMDQALKSLMASEEEYSTKEDKYEEEIKLLEEKLKEAETRAEFAERSVAKLEKTIDDLEETLASAKEENVEIHQTLDQTLLELNNL","proteinLength":"Full Length","predictedMolecularWeight":"35.1 kDa","actualMolecularWeight":null,"aminoAcidEnd":284,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P07951","tags":[{"tag":"His","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

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

Tropomyosin 2 (TPM2) is a protein that plays an important mechanical role in muscle function. It is a component of the actin filament system weighing approximately 32.7 kDa. TPM2 interacts with actin to stabilize the filament structures which are essential in muscle contraction processes. This protein is expressed mainly in muscle tissues including skeletal and cardiac muscles but is also present in other tissues. Its stability and interaction with actin filaments make it significant in maintaining sarcomere structure.
Biological function summary

TPM2 ensures proper muscle contraction by regulating the interaction between actin and myosin two key components in muscle movement. It forms a complex with actin and troponin a critical protein that regulates muscle contraction through calcium ion binding. This complex facilitates muscle fiber contraction by exposing the binding sites for myosin on actin filaments. The presence of TPM2 in the complex is essential for the contraction mechanism allowing precise control of muscle movements.

Pathways

TPM2 acts in the regulation of muscle contraction and actin cytoskeleton signaling pathways. In the muscle contraction pathway TPM2 interacts closely with tropomyosin 1 (TPM1) and the myosin motor protein playing a regulatory role. It is involved in the actin cytoskeleton signaling pathway where it helps organize actin filaments necessary for various cellular activities. Through these pathways TPM2 integrates signals essential for muscle activity and cellular architecture maintenance.

TPM2 mutations have a notable connection to conditions such as nemaline myopathy and distal arthrogryposis. Nemaline myopathy is characterized by muscle weakness and it arises due to defects in sarcomere proteins with TPM2 being a significant player. Additionally changes in TPM2 can associate with contractures and joint deformities in distal arthrogryposis. The protein connects to cellular disorders through its interactions with troponin I (TNNI2) and other structural sarcomere components highlighting its critical role in muscle integrity and function.
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Specifications

Form

Liquid

Additional notes

ab103503 was purified by using anion-exchange chromatography (DEAE sepharose resin) and gel-filtration chromatography (Sephacryl S-200) with 20mM Tris pH 7.5, 2mM EDTA.

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General info

Function

Binds to actin filaments in muscle and non-muscle cells. Plays a central role, in association with the troponin complex, in the calcium dependent regulation of vertebrate striated muscle contraction. Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments. The non-muscle isoform may have a role in agonist-mediated receptor internalization.

Sequence similarities

Belongs to the tropomyosin family.

Post-translational modifications

Phosphorylated on Ser-61 by PIK3CG. Phosphorylation on Ser-61 is required for ADRB2 internalization (By similarity).

Subcellular localisation

Cytoskeleton

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Product protocols

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Target data

Binds to actin filaments in muscle and non-muscle cells. Plays a central role, in association with the troponin complex, in the calcium dependent regulation of vertebrate striated muscle contraction. Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments. The non-muscle isoform may have a role in agonist-mediated receptor internalization.
See full target information TPM2
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