TAMALIN

gene
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Summary

TAMALIN (trafficking regulator and scaffold protein tamalin, HGNC:18707) is a protein-coding gene on chromosome 12q13.13, encoding Protein TAMALIN (Q7Z6J2). Plays a role in intracellular trafficking and contributes to the macromolecular organization of group 1 metabotropic glutamate receptors (mGluRs) at synapses.

This gene encodes a protein that functions as a molecular scaffold, linking receptors, including group 1 metabotropic glutamate receptors, to neuronal proteins. The encoded protein contains conserved domains, including a leucine zipper sequence, PDZ domain and a C-terminal PDZ-binding motif. Alternately spliced transcript variants have been observed for this gene.

Source: NCBI Gene 160622 — RefSeq curated summary.

At a glance

  • GWAS associations: 1
  • Clinical variants (ClinVar): 88 total
  • MANE Select transcript: NM_181711

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:18707
Approved symbolTAMALIN
Nametrafficking regulator and scaffold protein tamalin
Location12q13.13
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000161835
Ensembl biotypeprotein_coding
OMIM612027
Entrez160622

Gene structure

Transcript identifiers

Ensembl transcripts: 8 — 3 protein_coding, 3 retained_intron, 2 protein_coding_CDS_not_defined

ENST00000293662, ENST00000546756, ENST00000547749, ENST00000548505, ENST00000550809, ENST00000552049, ENST00000552508, ENST00000552963

RefSeq mRNA: 2 — MANE Select: NM_181711 NM_001271856, NM_181711

CCDS: CCDS61124, CCDS8817

Canonical transcript exons

ENST00000293662 — 8 exons

ExonStartEnd
ENSE000010607065200919052009239
ENSE000013281005200694652007265
ENSE000014835215201469452015889
ENSE000034604915201368752013780
ENSE000035695385201387752013943
ENSE000035859565201088152010935
ENSE000036439845201413552014201
ENSE000036786665201103952011141

Expression profiles

Bgee: expression breadth ubiquitous, 239 present calls, max score 99.10.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 23.5916 / max 1936.9717, expressed in 1255 samples.

FANTOM5 promoters (2 alternative TSS)

Promoter IDTPM avgSamples expressed
12554022.94791181
1255420.6436420

Top tissues by expression

252 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
right lungUBERON:000216799.10gold quality
upper lobe of left lungUBERON:000895298.22gold quality
left uterine tubeUBERON:000130398.01gold quality
upper lobe of lungUBERON:000894896.83gold quality
tibial nerveUBERON:000132396.70gold quality
omental fat padUBERON:001041496.42gold quality
mucosa of stomachUBERON:000119996.39gold quality
gall bladderUBERON:000211096.38gold quality
peritoneumUBERON:000235896.38gold quality
endocervixUBERON:000045895.78gold quality
adipose tissue of abdominal regionUBERON:000780895.28gold quality
ectocervixUBERON:001224994.56gold quality
body of uterusUBERON:000985394.48gold quality
right atrium auricular regionUBERON:000663194.38gold quality
apex of heartUBERON:000209894.26gold quality
right ovaryUBERON:000211894.17gold quality
subcutaneous adipose tissueUBERON:000219093.93gold quality
cardiac atriumUBERON:000208193.91gold quality
left ovaryUBERON:000211993.87gold quality
right frontal lobeUBERON:000281093.87gold quality
right lobe of thyroid glandUBERON:000111993.48gold quality
kidney epitheliumUBERON:000481993.48silver quality
sural nerveUBERON:001548893.48gold quality
right coronary arteryUBERON:000162593.40gold quality
heart left ventricleUBERON:000208493.29gold quality
spleenUBERON:000210693.18gold quality
putamenUBERON:000187493.14gold quality
cardiac ventricleUBERON:000208293.11gold quality
smooth muscle tissueUBERON:000113592.95gold quality
nucleus accumbensUBERON:000188292.88gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes12.25

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

36 targeting TAMALIN, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-6867-5P100.0082.213464
HSA-MIR-5692A100.0074.406850
HSA-LET-7A-3P100.0074.033932
HSA-LET-7B-3P100.0074.083913
HSA-LET-7F-1-3P100.0074.023928
HSA-MIR-98-3P100.0074.083907
HSA-MIR-150-5P99.9966.691976
HSA-MIR-6870-5P99.9968.552115
HSA-LET-7F-2-3P99.9870.982588
HSA-MIR-1185-1-3P99.9871.042593
HSA-MIR-1185-2-3P99.9871.042593
HSA-MIR-4789-5P99.9870.762721
HSA-MIR-4723-5P99.9768.702034
HSA-MIR-569899.9768.492029
HSA-MIR-7111-5P99.9768.482062
HSA-MIR-3065-3P99.8770.251407
HSA-MIR-629-3P99.8567.991875
HSA-MIR-4713-5P99.7867.801794
HSA-MIR-320A-3P99.7769.732107
HSA-MIR-320B99.7769.732107
HSA-MIR-320C99.7769.732107
HSA-MIR-320D99.7769.732107
HSA-MIR-442999.7769.622111
HSA-MIR-7160-5P99.1167.172207
HSA-MIR-6814-5P99.0366.681273
HSA-MIR-6801-3P98.0464.64805
HSA-MIR-6810-3P97.9664.571023
HSA-MIR-6787-5P97.5463.85457
HSA-MIR-477197.4367.69596
HSA-MIR-939-5P97.1065.801579

Literature-anchored findings (GeneRIF, showing 8)

  • The crystal structures of the autoinhibitory PDZ domain of Tamalin has implications for the regulation of metabotropic glutamate receptor trafficking. (PMID:17396155)
  • protein-protein interaction mediated by ARNO coiled-coil domain required for ARNO induced motility; coiled-coil domain promotes assembly of multiprotein complex containing ARNO and Dock180; assembly of complex requires coiled-coil domain, GRASP and IPCEF (PMID:20016009)
  • the structural basis of the phosphoinhibition of GRASP-mediated membrane tethering and provide a mechanism for its allosteric regulation. (PMID:22523075)
  • GRASP regulates the non-clathrin/Arf6-dependent, plasma membrane recycling and signalling pathways. (PMID:22931251)
  • GRASP bridges the guanine nucleotide exchange factors (GEFs) that activate Arf and Rac, thereby promoting Arf-to-Rac signaling By binding to both cytohesin 2/ARNO and Dock180. (PMID:23441967)
  • myristoylated GRASP promoted tethering and exhibited a unique membrane complex. Thus, myristoylation restricts the membrane orientation of the GRASP domain favoring interactions in trans for membrane tethering. (PMID:24505136)
  • Schizophrenia subjects compared to controls showed a marked increase in CA1 hippocampal Norbin, and Tamalin proteins (47% and 34% respectively), which are endogenous regulators of mGluR5 signalling and trafficking (PMID:26048293)
  • The post-synaptic scaffolding protein tamalin regulates ligand-mediated trafficking of metabotropic glutamate receptors. (PMID:32376687)

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_reriotamalinENSDARG00000000588
mus_musculusTamalinENSMUSG00000000531
rattus_norvegicusTamalinENSRNOG00000007346
drosophila_melanogasterssp6FBGN0035676
caenorhabditis_elegansgras-1WBGENE00009272

Paralogs (1): CYTIP (ENSG00000115165)

Protein

Protein identifiers

Protein TAMALINQ7Z6J2 (reviewed: Q7Z6J2)

Alternative names: General receptor for phosphoinositides 1-associated scaffold protein

All UniProt accessions (2): Q7Z6J2, F8VRX5

UniProt curated annotations — full annotation on UniProt →

Function. Plays a role in intracellular trafficking and contributes to the macromolecular organization of group 1 metabotropic glutamate receptors (mGluRs) at synapses.

Subunit / interactions. Heteromer. Composed of TAMALIN, CYTH2 and at least one GRM1. Also interacts with CYTH3, GRM2, GRM3 and GRM5.

Subcellular location. Cytoplasm. Perinuclear region. Cell membrane. Postsynaptic cell membrane.

Isoforms (2)

UniProt IDNamesCanonical?
Q7Z6J2-11yes
Q7Z6J2-22

RefSeq proteins (2): NP_001258785, NP_859062* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001478PDZDomain
IPR036034PDZ_sfHomologous_superfamily
IPR052122Intracell_Traff_Signaling_RegFamily

Pfam: PF00595

UniProt features (23 total): modified residue 5, strand 5, region of interest 3, compositionally biased region 3, splice variant 2, helix 2, chain 1, domain 1, turn 1

Structure

Experimental structures (PDB)

1 structures.

PDBMethodResolution (Å)
2PNTX-RAY DIFFRACTION2.15

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q7Z6J2-F161.450.19

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (5): 237, 270, 387, 77, 94

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 151 (showing top): GRAESSMANN_APOPTOSIS_BY_SERUM_DEPRIVATION_DN, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, GOBP_VESICLE_MEDIATED_TRANSPORT, GOMF_GTPASE_BINDING, GOBP_REGULATION_OF_VESICLE_MEDIATED_TRANSPORT, GTGCCTT_MIR506, GOBP_REGULATION_OF_RECEPTOR_INTERNALIZATION, ATF1_Q6, GOBP_REGULATION_OF_RECEPTOR_MEDIATED_ENDOCYTOSIS, GOBP_RECEPTOR_INTERNALIZATION, GOBP_REGULATION_OF_ENDOCYTOSIS, RFX1_02, AML1_01, CCAGGGG_MIR331, GOBP_REGULATION_OF_TRANSPORT

GO Biological Process (2): signal transduction (GO:0007165), regulation of postsynaptic neurotransmitter receptor internalization (GO:0099149)

GO Molecular Function (4): PDZ domain binding (GO:0030165), small GTPase binding (GO:0031267), identical protein binding (GO:0042802), protein binding (GO:0005515)

GO Cellular Component (8): plasma membrane (GO:0005886), postsynaptic density (GO:0014069), postsynaptic membrane (GO:0045211), perinuclear region of cytoplasm (GO:0048471), glutamatergic synapse (GO:0098978), cytoplasm (GO:0005737), membrane (GO:0016020), synapse (GO:0045202)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure3
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
regulation of receptor internalization1
regulation of biological quality1
postsynaptic neurotransmitter receptor internalization1
protein domain specific binding1
GTPase binding1
protein binding1
binding1
membrane1
cell periphery1
asymmetric synapse1
postsynaptic specialization1
synaptic membrane1
postsynapse1
cytoplasm1
synapse1
intracellular anatomical structure1
cell junction1

Protein interactions and networks

STRING

696 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
TAMALINCYTH2Q99418981
TAMALINNTRK3Q16288894
TAMALINCYTH3O43739864
TAMALINAPBA2Q99767840
TAMALINDLG4P78352801
TAMALINDLGAP3O95886784
TAMALINNCDNQ9UBB6774
TAMALINMAGI2Q86UL8769
TAMALINGRM5P41594721
TAMALINPEX5LQ8IYB4685
TAMALINRGS12O14924683
TAMALINFLNAP21333679
TAMALINGRM1Q13255639
TAMALINCYTH1Q15438623
TAMALINRABIFP47224619

IntAct

550 interactions, top by confidence:

ABTypeScore
TAMALINACE2psi-mi:“MI:0915”(physical association)0.610
TAMALINACE2psi-mi:“MI:0407”(direct interaction)0.610
TAMALINPTENpsi-mi:“MI:0407”(direct interaction)0.440
TAMALINSNX27psi-mi:“MI:0407”(direct interaction)0.440
TAMALINMAST2psi-mi:“MI:0407”(direct interaction)0.440
FCHSD2TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
CACNA1DTAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SLC22A11TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
YAP1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SLC1A1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
WWTR1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
TAMALINSLC15A5psi-mi:“MI:0407”(direct interaction)0.440
TAMALINPDZK1psi-mi:“MI:0407”(direct interaction)0.440
TAMALINSHANK3psi-mi:“MI:0407”(direct interaction)0.440
PLEKHH2TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
PRKCATAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SHANK1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
GNG4TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
TAMALINNHERF2psi-mi:“MI:0407”(direct interaction)0.440
APCTAMALINpsi-mi:“MI:0407”(direct interaction)0.440
OR8G1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
BCRTAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SHROOM3TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SLC22A9TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
RCN2TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
RAPGEF2TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
MAST1TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
TAMALINPTPN3psi-mi:“MI:0407”(direct interaction)0.440
ATP2A2TAMALINpsi-mi:“MI:0407”(direct interaction)0.440
SLC5A12TAMALINpsi-mi:“MI:0407”(direct interaction)0.440

BioGRID (19): PSD (Affinity Capture-Western), SRC (Affinity Capture-Western), PTPN11 (Affinity Capture-Western), GRM1 (Affinity Capture-Western), GRASP (Biochemical Activity), GRASP (Biochemical Activity), SYK (Affinity Capture-Western), GRASP (Affinity Capture-Western), DOCK1 (Reconstituted Complex), GRASP (FRET), GRASP (Protein-peptide), GRASP (Affinity Capture-Western), GRASP (Affinity Capture-MS), GRASP (Affinity Capture-MS), GRASP (Affinity Capture-Western)

ESM2 similar proteins: A0A8I5KY20, A2A9T0, A2IDD5, B0BNK9, B8ZZ34, C9JI98, C9JLR9, F5GYI3, O18734, P0CG25, P84157, Q0IIA6, Q0PHV7, Q0X0E2, Q13387, Q1RMK9, Q2M3D2, Q2TAM9, Q3ZCQ3, Q4VA45, Q673H1, Q69YZ2, Q6NS60, Q6P6N5, Q6PJ61, Q7Z6J2, Q80ZJ8, Q810I0, Q86SX3, Q86UD0, Q86XT2, Q8BNN1, Q8IUW3, Q8N4Y2, Q8N6N2, Q8QZV0, Q8R4T5, Q8TF61, Q8VCR9, Q8WXF8

Diamond homologs: A1A5G4, A5PKA5, A8JQ65, A8MUH7, B3LXF2, B3NYS4, B4I4Y1, B4JHJ7, B4K6T8, B4PRE2, B4R0A5, B7WN72, D3YXJ0, D3YZU1, E9PUQ8, O14745, O43639, O55033, O55043, P15498, P16333, P27870, P54100, P70441, Q08DN7, Q14155, Q15052, Q15599, Q16760, Q28619, Q3SZK8, Q3T0X8, Q3UHD6, Q4ACU6, Q4R6G4, Q52KW0, Q570Y9, Q5F488, Q5RCF7, Q5T2W1

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 190 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
Trafficking of AMPA receptors522.1×5e-04
Neurexins and neuroligins812.8×1e-04
Neurotransmitter receptors and postsynaptic signal transmission86.5×3e-03
Transmission across Chemical Synapses95.6×3e-03
Neuronal System145.0×2e-04

GO biological processes:

GO termPartnersFoldFDR
positive regulation of synaptic transmission, glutamatergic725.0×8e-06
obsolete organic anion transport522.9×6e-04
establishment or maintenance of epithelial cell apical/basal polarity516.6×2e-03
adult behavior616.1×6e-04
positive regulation of excitatory postsynaptic potential515.1×3e-03
synapse organization914.4×8e-06
regulation of postsynaptic membrane neurotransmitter receptor levels514.2×3e-03
synapse assembly810.6×4e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

88 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance80
Likely benign2
Benign1

Top pathogenic / likely-pathogenic (0)

SpliceAI

1504 predictions. Top by Δscore:

VariantEffectΔscore
12:52010869:T:TAacceptor_gain1.0000
12:52010877:GCA:Gacceptor_loss1.0000
12:52010878:CA:Cacceptor_loss1.0000
12:52010879:AG:Aacceptor_gain1.0000
12:52010880:GG:Gacceptor_gain1.0000
12:52010880:GGAA:Gacceptor_gain1.0000
12:52010880:GGAAA:Gacceptor_gain1.0000
12:52013681:T:TAacceptor_gain1.0000
12:52013682:G:Aacceptor_gain1.0000
12:52013682:GGCA:Gacceptor_loss1.0000
12:52013684:CAGG:Cacceptor_loss1.0000
12:52013685:A:AGacceptor_gain1.0000
12:52013685:AG:Aacceptor_gain1.0000
12:52013685:AGG:Aacceptor_gain1.0000
12:52013685:AGGG:Aacceptor_gain1.0000
12:52013686:G:GTacceptor_gain1.0000
12:52013686:GG:Gacceptor_gain1.0000
12:52013686:GGG:Gacceptor_gain1.0000
12:52013686:GGGG:Gacceptor_gain1.0000
12:52013777:TCAGG:Tdonor_loss1.0000
12:52013778:CAGGT:Cdonor_loss1.0000
12:52013779:AGGTA:Adonor_loss1.0000
12:52013780:GGTA:Gdonor_loss1.0000
12:52013781:G:Tdonor_loss1.0000
12:52013782:T:Adonor_loss1.0000
12:52013869:A:AGacceptor_gain1.0000
12:52013875:A:AGacceptor_gain1.0000
12:52013875:AGACT:Aacceptor_gain1.0000
12:52013876:G:GGacceptor_gain1.0000
12:52013876:GA:Gacceptor_gain1.0000

AlphaMissense

2478 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
12:52010924:T:CF114L1.000
12:52010925:T:CF114S1.000
12:52010926:T:AF114L1.000
12:52010926:T:GF114L1.000
12:52011091:T:AV135D1.000
12:52011133:T:CL149P1.000
12:52013696:T:AI155N1.000
12:52013705:T:AV158D1.000
12:52013756:T:AI175N1.000
12:52013918:T:CL197P1.000
12:52013930:T:CL201P1.000
12:52013939:T:CL204P1.000
12:52014172:T:CL218P1.000
12:52010918:T:CF112L0.999
12:52010920:C:AF112L0.999
12:52010920:C:GF112L0.999
12:52010921:G:CG113R0.999
12:52010922:G:TG113V0.999
12:52010931:T:AI116N0.999
12:52010931:T:CI116T0.999
12:52010931:T:GI116S0.999
12:52010934:A:CQ117P0.999
12:52011040:C:TT118I0.999
12:52011042:T:GY119D0.999
12:52011046:G:AG120D0.999
12:52011087:T:CF134L0.999
12:52011089:T:AF134L0.999
12:52011089:T:GF134L0.999
12:52011100:T:AV138D0.999
12:52011118:C:AA144D0.999

dbSNP variants (sampled 300 via entrez): RS1000183216 (12:52009771 G>C), RS1000525479 (12:52008168 T>C), RS1000527770 (12:52015510 C>T), RS1000719644 (12:52008555 TG>T), RS1000823845 (12:52015296 G>A), RS1001041457 (12:52008418 C>A), RS1001173134 (12:52008291 G>A), RS1001187300 (12:52011394 C>T), RS1001303436 (12:52011757 A>T), RS1001774344 (12:52015925 T>C), RS1002074883 (12:52009080 G>A), RS1002159028 (12:52014338 C>G,T), RS1002885157 (12:52005270 G>A), RS1003025775 (12:52007823 G>A), RS1003517478 (12:52013000 C>T)

Disease associations

OMIM: gene MIM:612027 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (1): Microphthalmia-anophthalmia-coloboma (Orphanet:98555)

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

1 associations (top):

StudyTraitp-value
GCST002491_14Age-related hearing impairment5.000000e-07

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

18 total (human), top 18 by PubMed support.

ChemicalActions (top 5)PubMed papers
afuresertibincreases expression1
FR900359increases phosphorylation1
abrineincreases expression1
(+)-JQ1 compounddecreases expression1
Sunitinibdecreases expression1
Arsenic Trioxidedecreases expression1
Air Pollutants, Occupationalincreases expression1
Arsenicdecreases expression1
Benzo(a)pyreneincreases methylation1
Copperaffects binding, decreases expression1
Disulfiramaffects binding, decreases expression1
Nickelincreases expression1
Niclosamideincreases expression1
Smokedecreases expression1
Triclosanincreases expression1
Urethanedecreases expression1
Valproic Acidincreases methylation1
Copper Sulfatedecreases expression1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): presbycusis