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Recombinant human Semaphorin 3A protein (Fc Chimera Active) is a Human Full Length protein, in the 25 to 771 aa range, expressed in CHO, with >=95% purity and suitable for SDS-PAGE, FuncS, HPLC.

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Key facts

Purity
>=95% SDS-PAGE
Expression system
CHO cells
Tags
His tag N-Terminus
Applications
SDS-PAGE, FuncS, HPLC
Biologically active
Yes

Amino acid sequence

H H H H H H H H G K N N V P R L K L S Y K E M L E S N N V I T F N G L A N S S S Y H T F L L D E E R S R L Y V G A K D H I F S F D L V N I K D F Q K I V W P V S Y T R R D E C K W A G K D I L K E C A N F I K V L K A Y N Q T H L Y A C G T G A F H P I C T Y I E I G H H P E D N I F K L E N S H F E N G R G K S P Y D P K L L T A S L L I D G E L Y S G T A A D F M G R D F A I F R T L G H H H P I R T E Q H D S R W L N D P K F I S A H L I S E S D N P E D D K V Y F F F R E N A I D G E H S G K A T H A R I G Q I C K N D F G G H R S L V N K W T T F L K A R L I C S V P G P N G I D T H F D E L Q D V F L M N F K D P K N P V V Y G V F T T S S N I F K G S A V C M Y S M S D V R R V F L G P Y A H R D G P N Y Q W V P Y Q G R V P Y P R P G T C P S K T F G G F D S T K D L P D D V I T F A R S H P A M Y N P V F P M N N R P I V I K T D V N Y Q F T Q I V V D R V D A E D G Q Y D V M F I G T D V G T V L K V V S I P K E T W Y D L E E V L L E E M T V F R E P T A I S A M E L S T K Q Q Q L Y I G S T A G V A Q L P L H R C D I Y G K A C A E C C L A R D P Y C A W D G S A C S R Y F P T A K R A T R A Q D I R N G D P L T H C S D L H H D N H H G H S P E E R I I Y G V E N S S T F L E C S P K S Q R A L V Y W Q F Q R R N E E R K E E I R V D D H I I R T D Q G L L L R S L Q Q K D S G N Y L C H A V E H G F I Q T L L K V T L E V I D T E H L E E L L H K D D D G D G S K T K E M S N S M T P S Q K V W Y R D F M Q L I N H P N L N T M D E F C E Q V W K R D R K Q R R Q R P G H T P G N S N K W K H L Q E N K K G R N R R T H E F E R A P R S V G G P K S C D K T H T C P P C P A P E L L G G P S V F L F P P K P K D T L M I S R T P E V T C V V V D V S H E D P E V K F N W Y V D G V E V H N A K T K P R E E Q Y N S T Y R V V S V L T V L H Q D W L N G K E Y K C K V S N K A L P A P I E K T I S K A K G Q P R E P Q V Y T L P P S R D E L T K N Q V S L T C L V K G F Y P S D I A V E W E S N G Q P E N N Y K T T P P V L D S D G S F F L Y S K L T V D K S R W Q Q G N V F S C S V M H E A L H N H Y T Q K S L S L S P G K

Reactivity data

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

-

Application
FuncS
Reactivity
Reacts
Dilution info
-
Notes

-

Application
HPLC
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Involved in the development of the olfactory system and in neuronal control of puberty. Induces the collapse and paralysis of neuronal growth cones. Could serve as a ligand that guides specific growth cones by a motility-inhibiting mechanism. Binds to the complex neuropilin-1/plexin-1.

Alternative names

Recommended products

Recombinant human Semaphorin 3A protein (Fc Chimera Active) is a Human Full Length protein, in the 25 to 771 aa range, expressed in CHO, with >=95% purity and suitable for SDS-PAGE, FuncS, HPLC.

Key facts

Purity
>=95% SDS-PAGE
Expression system
CHO cells
Applications
SDS-PAGE, FuncS, HPLC
Biological activity
Determined by its ability to bind recombinant rat Neuropilin‐1 Fc Chimera in a functional ELISA assay.
Accession
Q14563-1
Animal free
No
Species
Human
Reconstitution
Lot numbers beginning with GR3223939 should be reconstituted in 1xPBS to 0.1-0.25 mg/ml. Note: Allow the reconstituted vial to sit at room temperature for 1 hour before use. All other lot numbers should be in 20mM Tris, pH 8.5 to a concentration of 0.1-0.25 mg/ml. Note: Allow the reconstituted vial to sit at room temperature for 2 hours before use. If you have any questions regarding the reconstitution of your product, please do not hesitate to contact our Scientific support team.
Concentration
Loading...

Sequence info

Amino acid sequence

H H H H H H H H G K N N V P R L K L S Y K E M L E S N N V I T F N G L A N S S S Y H T F L L D E E R S R L Y V G A K D H I F S F D L V N I K D F Q K I V W P V S Y T R R D E C K W A G K D I L K E C A N F I K V L K A Y N Q T H L Y A C G T G A F H P I C T Y I E I G H H P E D N I F K L E N S H F E N G R G K S P Y D P K L L T A S L L I D G E L Y S G T A A D F M G R D F A I F R T L G H H H P I R T E Q H D S R W L N D P K F I S A H L I S E S D N P E D D K V Y F F F R E N A I D G E H S G K A T H A R I G Q I C K N D F G G H R S L V N K W T T F L K A R L I C S V P G P N G I D T H F D E L Q D V F L M N F K D P K N P V V Y G V F T T S S N I F K G S A V C M Y S M S D V R R V F L G P Y A H R D G P N Y Q W V P Y Q G R V P Y P R P G T C P S K T F G G F D S T K D L P D D V I T F A R S H P A M Y N P V F P M N N R P I V I K T D V N Y Q F T Q I V V D R V D A E D G Q Y D V M F I G T D V G T V L K V V S I P K E T W Y D L E E V L L E E M T V F R E P T A I S A M E L S T K Q Q Q L Y I G S T A G V A Q L P L H R C D I Y G K A C A E C C L A R D P Y C A W D G S A C S R Y F P T A K R A T R A Q D I R N G D P L T H C S D L H H D N H H G H S P E E R I I Y G V E N S S T F L E C S P K S Q R A L V Y W Q F Q R R N E E R K E E I R V D D H I I R T D Q G L L L R S L Q Q K D S G N Y L C H A V E H G F I Q T L L K V T L E V I D T E H L E E L L H K D D D G D G S K T K E M S N S M T P S Q K V W Y R D F M Q L I N H P N L N T M D E F C E Q V W K R D R K Q R R Q R P G H T P G N S N K W K H L Q E N K K G R N R R T H E F E R A P R S V G G P K S C D K T H T C P P C P A P E L L G G P S V F L F P P K P K D T L M I S R T P E V T C V V V D V S H E D P E V K F N W Y V D G V E V H N A K T K P R E E Q Y N S T Y R V V S V L T V L H Q D W L N G K E Y K C K V S N K A L P A P I E K T I S K A K G Q P R E P Q V Y T L P P S R D E L T K N Q V S L T C L V K G F Y P S D I A V E W E S N G Q P E N N Y K T T P P V L D S D G S F F L Y S K L T V D K S R W Q Q G N V F S C S V M H E A L H N H Y T Q K S L S L S P G K
Accession
Q14563
Protein length
Full Length
Predicted molecular weight
226.2 kDa
Amino acids
25 to 771
Nature
Recombinant
Tags
His tag N-Terminus

Specifications

Form
Lyophilized
Additional notes

>= 95% by HPLC analysis.

General info

Function

Involved in the development of the olfactory system and in neuronal control of puberty. Induces the collapse and paralysis of neuronal growth cones. Could serve as a ligand that guides specific growth cones by a motility-inhibiting mechanism. Binds to the complex neuropilin-1/plexin-1.

Sequence similarities

Belongs to the semaphorin family.

Storage

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

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Notes

Glycosylated, disulfide-linked homodimer of 1,976 amino acid residues with a calculated molecular weight of 226.2 kDa and therefore runs above the 200kDa marker by SDS-PAGE analysis under nonreducing conditions.

When run under reducing conditions, this protein migrates as three distinct bands that, due to glycosylation, run higher than expected at apparent molecular weights of approximately 120-130 kDa, 90-100 kDa, and 35-40 kDa.

Supplementary info

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

Semaphorin 3A also known as SEMA3A is a secreted protein that plays a role as a guidance cue in the nervous system by binding to receptors like neuropilin-1 and plexin-A. It weighs approximately 95 kDa. Expressed mainly in neurons SEMA3A influences neuronal wiring during development. In addition to neural tissues its expression occurs in endothelial cells and immune cells suggesting a role in vascular and immune system functioning.

Biological function summary

Semaphorin 3A influences cell migration axonal guidance and organogenesis. It functions as a repulsive guidance molecule that unfavorably influences the direction of growing axons and migrating neurons. SEMA3A does not act alone but is part of a complex involving neuropilin and plexin for effective signal transduction. These signaling complexes ensure that axonal pathways form correctly and aid in correct neural network formation.

Pathways

Semaphorin 3An importantly integrates into the axon guidance and immune response pathways. In the axon guidance pathway it repulses axons and influences the cytoskeletal dynamics by interacting with proteins such as collapsin response mediator protein (CRMP) and Rac1. SEMA3A participates in immune response through its influence on immune cell migration and positioning ensuring an appropriate immune response.

Associated diseases and disorders

Anomalies in Semaphorin 3A activity relate to cancer and neuropathic pain. Aberrant SEMA3A expression and signaling can contribute to tumor progression and metastasis often working with neuropilin-1 and vascular endothelial growth factor (VEGF) in cancerous processes. Furthermore changes in SEMA3A signaling pathways have links to neuropathic pain where it collaborates with CRMP-2 to alter pain perception and neuropathic pain pathways.

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