Serotonin Genes

I am interested in 4 of the genes related to serotonin function in depression and food intake: Pet-1, Serotonin Transporter (5HTT), Tryptophan Hydroxylase 2 (TPH2), and 5HT2C Receptor (5HT2CR)

ISH probes

Pet-1

Reference:

Serotonin Transporter

Reference:

Tryptophan Hydroxylase 2

(see PCR primers below).

Reference: Kulikov AV, Osipova DV, Naumenko VS, Popova NK. Association between Tph2 gene polymorphism, brain tryptophan hydroxylase activity and aggressiveness in mouse strains. Genes Brain Behav. 2005 Nov;4(8):482-5. PMID 16268992

5HT2C Receptor

(see PCR primers below)

Was originally called the 5HT1C receptor when first discovered.

References:

Molineaux SM, Jessell TM, Axel R, Julius D. 5-HT1c receptor is a prominent serotonin receptor subtype in the central nervous system. Proc Natl Acad Sci U S A. 1989 Sep;86(17):6793-7. PMID 2771958 Very nice in situ usinga 300 bp riboprobe. The sequence was taken from Julius et al 1988

Julius D, MacDermott AB, Axel R, Jessell TM. Molecular characterization of a functional cDNA encoding the serotonin 1c receptor. Science. 1988 Jul 29;241(4865):558-64. PMID: 339989

PCR primers

Tryptophan Hydroxylase 2 cDNA

for in situ hybridization

product size: bp, range & ascension number?

TPH2for: 5’ -GAAGTTGGCGGGCTGGTGAGA–3’

TPH2rev: 5’ -TCGGCAAGCATGAGTGGGGTAGA–3’

Reference: Kulikov AV, Osipova DV, Naumenko VS, Popova NK. Association between Tph2 gene polymorphism, brain tryptophan hydroxylase activity and aggressiveness in mouse strains. Genes Brain Behav. 2005 Nov;4(8):482-5. PMID 16268992

Tryptophan Hydroxylase 2 polymorphisms

linked to aggression. 5 min at 94°C then 40 cycles (30 s at 94°C, 30 s at 60°C, 30 s at 72°C)

Positive control, product size 523 bp

ctrlTPH2for: 5’ -tttgacccaaagacgacctgcttgca –3’

ctrlTPH2rev: 5’-tgcatgcttactagccaaccatgagaca-3’

1473C allele, product size 307bp

TPH2C1473: 5’-cagaatttcaatgctctgcgtgtggg-3’

1473G allele. product size 307 bp

TPH2g1473: 5’-cagaatttcaatgctctgcgtgtggc-3’

Reference: Zhang X, Beaulieu JM, Sotnikova TD, Gainetdinov RR, Caron MG. Tryptophan hydroxylase-2 controls brain serotonin synthesis. Science. 2004 Jul 9;305(5681):217. PMID 15247473

5HT2C Receptor cDNA

for in situ hybridization

product size: 207 bp, ascension number: M21410, bp 105-311

5HT2Cfor (bp 105-126): 5’ -CTATCCCTTACCTTCCTATTAC–3’

5HT2Crev (bp 311-290): 5’ -TACCCTACTCTAGCATAGAAAC–3’

References:

Heisler LK, Pronchuk N, Nonogaki K, Zhou L, Raber J, Tung L, Yeo GS, O'Rahilly S, Colmers WF, Elmquist JK, Tecott LH. Serotonin activates the hypothalamic-pituitary-adrenal axis via serotonin 2C receptor stimulation. J Neurosci. 2007 Jun 27;27(26):6956-64. PMID 17596444

Molineaux SM, Jessell TM, Axel R, Julius D. 5-HT1c receptor is a prominent serotonin receptor subtype in the central nervous system. Proc Natl Acad Sci U S A. 1989 Sep;86(17):6793-7. PMID 2771958

Julius,D., MacDermott,A.B., Axel,R. and Jessell,T.M. Molecular characterization of a functional cDNA encoding the serotonin 1c receptor, Science 241 (4865), 558-564 (1988) PMID 3399891