Detail Information of Post-Translational Modifications

General Information of Drug Transporter (DT)
DT ID	DTD0008 Transporter Info
Gene Name	SLCO1B1
Transporter Name	Organic anion transporting polypeptide 1B1
Gene ID	10599
UniProt ID	Q9Y6L6

Post-Translational Modification of This DT
Overview of SLCO1B1 Modification Sites with Functional and Structural Information
Sequence	M D Q N Q H L N K T A E A Q P S E N K K T R Y C N G L K M F L A A L S L S F I A K T L G A I I M K S S I I H I E R R F E I S S S L V G F I D G S F E I G N L L V I V F V S Y F G S K L H R P K L I G I G C F I M G I G G V L T A L P H F F M G Y Y R Y S K E T N I N S S E N S T S T L S T C L I N Q I L S L N R A S P E I V G K G C L K E S G S Y M W I Y V F M G N M L R G I G E T P I V P L G L S Y I D D F A K E G H S S L Y L G I L N A I A M I G P I I G F T L G S L F S K M Y V D I G Y V D L S T I R I T P T D S R W V G A W W L N F L V S G L F S I I S S I P F F F L P Q T P N K P Q K E R K A S L S L H V L E T N D E K D Q T A N L T N Q G K N I T K N V T G F F Q S F K S I L T N P L Y V M F V L L T L L Q V S S Y I G A F T Y V F K Y V E Q Q Y G Q P S S K A N I L L G V I T I P I F A S G M F L G G Y I I K K F K L N T V G I A K F S C F T A V M S L S F Y L L Y F F I L C E N K S V A G L T M T Y D G N N P V T S H R D V P L S Y C N S D C N C D E S Q W E P V C G N N G I T Y I S P C L A G C K S S S G N K K P I V F Y N C S C L E V T G L Q N R N Y S A H L G E C P R D D A C T R K F Y F F V A I Q V L N L F F S A L G G T S H V M L I V K I V Q P E L K S L A L G F H S M V I R A L G G I L A P I Y F G A L I D T T C I K W S T N N C G T R G S C R T Y N S T S F S R V Y L G L S S M L R V S S L V L Y I I L I Y A M K K K Y Q E K D I N A S E N G S V M D E A N L E S L N K N K H F V P S A G A D S E T H C
PTM type	X-N-glycosylation X-Phosphorylation X-Ubiquitination X: Amino Acid

N-glycosylation
Asparagine	6 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Decreasing the membrane localization and transport function of the SLCO1B1			[1]
Role of PTM	Protein Activity Modulation
Modified Residue	Asparagine	Modified Location	134
Modified State	Asparagine to Glutamine substitution
Experimental Material(s)	Human embryonic kidney 293 (HEK293) cells
Experimental Method	Co-Immunoprecipitation
Detailed Description	Removal of the N-glycosylation at SLCO1B1 Asparagine134 (i.e. Asparagine to Glutamine substitution) have been reported to decrease its membrane localization and transport function.
PTM Phenomenon 2	Decreasing the membrane localization and transport function of the SLCO1B1			[1]
Role of PTM	Protein Activity Modulation
Modified Residue	Asparagine	Modified Location	503
Modified State	Asparagine to Glutamine substitution
Experimental Material(s)	Human embryonic kidney 293 (HEK293) cells
Experimental Method	Co-Immunoprecipitation
Detailed Description	Removal of the N-glycosylation at SLCO1B1 Asparagine503 (i.e. Asparagine to Glutamine substitution) have been reported to decrease its membrane localization and transport function.
PTM Phenomenon 3	Decreasing the membrane localization and transport function of the SLCO1B1			[1]
Role of PTM	Protein Activity Modulation
Modified Residue	Asparagine	Modified Location	516
Modified State	Asparagine to Glutamine substitution
Experimental Material(s)	Human embryonic kidney 293 (HEK293) cells
Experimental Method	Co-Immunoprecipitation
Detailed Description	Removal of the N-glycosylation at SLCO1B1 Asparagine516 (i.e. Asparagine to Glutamine substitution) have been reported to decrease its membrane localization and transport function.
PTM Phenomenon 4	Have the potential to influence SLCO1B1			[2]
Role of PTM	Potential impacts
Modified Residue	Asparagine	Modified Location	130
Experimental Method	Co-Immunoprecipitation
Detailed Description	N-linked Glycosylation at SLCO1B1 Asparagine 130 has the potential to affect its expression or activity.
PTM Phenomenon 5	Have the potential to influence SLCO1B1			[2]
Role of PTM	Potential impacts
Modified Residue	Asparagine	Modified Location	432
Experimental Method	Co-Immunoprecipitation
Detailed Description	N-linked Glycosylation at SLCO1B1 Asparagine 432 has the potential to affect its expression or activity.
PTM Phenomenon 6	Have the potential to influence SLCO1B1			[2]
Role of PTM	Potential impacts
Modified Residue	Asparagine	Modified Location	617
Experimental Method	Co-Immunoprecipitation
Detailed Description	N-linked Glycosylation at SLCO1B1 Asparagine 617 has the potential to affect its expression or activity.
Unclear Residue	1 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Decreasing the membrane expression and lower substrate transport of the SLCO1B1			[3]
Role of PTM	Surface Expression Modulation
Experimental Method	Co-Immunoprecipitation
Detailed Description	N-glycosylation at SLCO1B1 have been reported to decrease its membrane expression and lower substrate transport.
Phosphorylation
Serine	14 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Have the potential to influence SLCO1B1			[4]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	37
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 37 has the potential to affect its expression or activity.
PTM Phenomenon 2	Have the potential to influence SLCO1B1			[4]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	231
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 231 has the potential to affect its expression or activity.
PTM Phenomenon 3	Have the potential to influence SLCO1B1			[5] , [6]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	293
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 293 has the potential to affect its expression or activity.
PTM Phenomenon 4	Have the potential to influence SLCO1B1			[5] , [6]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	295
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 295 has the potential to affect its expression or activity.
PTM Phenomenon 5	Have the potential to influence SLCO1B1			[7] , [8]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	328
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 328 has the potential to affect its expression or activity.
PTM Phenomenon 6	Have the potential to influence SLCO1B1			[9]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	420
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 420 has the potential to affect its expression or activity.
PTM Phenomenon 7	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	618
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 618 has the potential to affect its expression or activity.
PTM Phenomenon 8	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	620
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 620 has the potential to affect its expression or activity.
PTM Phenomenon 9	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	622
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 622 has the potential to affect its expression or activity.
PTM Phenomenon 10	Have the potential to influence SLCO1B1			[6] , [11]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	659
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 659 has the potential to affect its expression or activity.
PTM Phenomenon 11	Have the potential to influence SLCO1B1			[6] , [11]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	663
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 663 has the potential to affect its expression or activity.
PTM Phenomenon 12	Have the potential to influence SLCO1B1			[5] , [12]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	672
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 672 has the potential to affect its expression or activity.
PTM Phenomenon 13	Have the potential to influence SLCO1B1			[5] , [12]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	682
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 682 has the potential to affect its expression or activity.
PTM Phenomenon 14	Have the potential to influence SLCO1B1			[13] , [14]
Role of PTM	Potential impacts
Modified Residue	Serine	Modified Location	687
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Serine 687 has the potential to affect its expression or activity.
Threonine	8 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Have the potential to influence SLCO1B1			[13] , [15]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	301
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 301 has the potential to affect its expression or activity.
PTM Phenomenon 2	Have the potential to influence SLCO1B1			[13]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	308
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 308 has the potential to affect its expression or activity.
PTM Phenomenon 3	Have the potential to influence SLCO1B1			[13]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	312
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 312 has the potential to affect its expression or activity.
PTM Phenomenon 4	Have the potential to influence SLCO1B1			[7] , [8]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	319
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 319 has the potential to affect its expression or activity.
PTM Phenomenon 5	Have the potential to influence SLCO1B1			[8]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	323
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 323 has the potential to affect its expression or activity.
PTM Phenomenon 6	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	615
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 615 has the potential to affect its expression or activity.
PTM Phenomenon 7	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	619
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 619 has the potential to affect its expression or activity.
PTM Phenomenon 8	Have the potential to influence SLCO1B1			[13]
Role of PTM	Potential impacts
Modified Residue	Threonine	Modified Location	689
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Threonine 689 has the potential to affect its expression or activity.
Tyrosine	7 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Potentially affecting the transporter			[16]
Role of PTM	On/Off Switch
Modified Residue	Tyrosine
Modified State	Tyrosine kinase inhibitors
Experimental Method	Co-Immunoprecipitation
Detailed Description	Removal of the Phosphorylation at SLCO1B1 Tyrosine (i.e. Tyrosine kinase inhibitors) have been reported to have the potential to affect the transporter.
PTM Phenomenon 2	Have the potential to influence SLCO1B1			[9]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	422
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 422 has the potential to affect its expression or activity.
PTM Phenomenon 3	Have the potential to influence SLCO1B1			[9]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	425
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 425 has the potential to affect its expression or activity.
PTM Phenomenon 4	Have the potential to influence SLCO1B1			[10]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	616
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 616 has the potential to affect its expression or activity.
PTM Phenomenon 5	Have the potential to influence SLCO1B1			[7] , [8]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	625
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 625 has the potential to affect its expression or activity.
PTM Phenomenon 6	Have the potential to influence SLCO1B1			[7] , [8]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	645
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 645 has the potential to affect its expression or activity.
PTM Phenomenon 7	Have the potential to influence SLCO1B1			[6]
Role of PTM	Potential impacts
Modified Residue	Tyrosine	Modified Location	651
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 Tyrosine 651 has the potential to affect its expression or activity.
Unclear Residue	1 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Decreasing the function of the SLCO1B1 by affecting internalization and recycling of the transporter protein			[17]
Role of PTM	Protein Activity Modulation
Affected Drug/Substrate	Estrone-3-sulfate	Results for Drug	Decreasing uptake of estron-3-sulfate
Related Enzyme	Protein kinase C alpha type (PRKCA)
Experimental Material(s)	Human embryonic kidney 293 (HEK293) cells
Experimental Method	Co-Immunoprecipitation
Detailed Description	Phosphorylation at SLCO1B1 have been reported to decrease its function by affecting internalization and recycling of the transporter protein.
Ubiquitination
Unclear Residue	1 PTM Phenomena Related to This Residue		Click to Show/Hide the Full List
PTM Phenomenon 1	Significantly decreased the maximal transport velocity (Vmax) of transporter			[18]
Role of PTM	Protein Activity Modulation
Affected Drug/Substrate	[3H]CCK-8	Results for Drug	Decreasing the transport of [3H]CCK-8
Experimental Material(s)	Human embryonic kidney 293 (HEK293) cells
Experimental Method	Co-Immunoprecipitation
Detailed Description	Ubiquitination at SLCO1B1 have been reported to significantly decrease its maximal transport velocity (Vmax).

References
1	N-Glycosylation dictates proper processing of organic anion transporting polypeptide 1B1. PLoS One. 2012;7(12):e52563.
2	dbPTM in 2022: an updated database for exploring regulatory networks and functional associations of protein post-translational modifications. Nucleic Acids Res. 2022 Jan 7;50(D1):D471-D479. (ID: SO1B1_HUMAN)
3	Impaired N-linked glycosylation of uptake and efflux transporters in human non-alcoholic fatty liver disease. Liver Int. 2017 Jul;37(7):1074-1081.
4	Ischemia in tumors induces early and sustained phosphorylation changes in stress kinase pathways but does not affect global protein levels. Mol Cell Proteomics. 2014 Jul;13(7):1690-704.
5	UniProt: a worldwide hub of protein knowledge. Nucleic Acids Res. 2019 Jan 8;47(D1):D506-D515.
6	Non-alcoholic fatty liver disease phosphoproteomics: A functional piece of the precision puzzle. Hepatol Res. 2017 Dec;47(13):1469-1483.
7	Systematic functional prioritization of protein posttranslational modifications. Cell. 2012 Jul 20;150(2):413-25.
8	Identification of tyrosine-phosphorylated proteins associated with metastasis and functional analysis of FER in human hepatocellular carcinoma cells. BMC Cancer. 2009 Oct 16;9:366.
9	Phosphoproteomics identifies driver tyrosine kinases in sarcoma cell lines and tumors. Cancer Res. 2012 May 15;72(10):2501-11.
10	Unique signalling connectivity of FGFR3-TACC3 oncoprotein revealed by quantitative phosphoproteomics and differential network analysis. Oncotarget. 2017 Oct 25;8(61):102898-102911.
11	Super-SILAC mix coupled with SIM/AIMS assays for targeted verification of phosphopeptides discovered in a large-scale phosphoproteome analysis of hepatocellular carcinoma. J Proteomics. 2017 Mar 22;157:40-51.
12	An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome. J Proteomics. 2014 Jan 16;96:253-62.
13	In situ sample processing approach (iSPA) for comprehensive quantitative phosphoproteome analysis. J Proteome Res. 2014 Sep 5;13(9):3896-904.
14	Systematic analysis of protein phosphorylation networks from phosphoproteomic data. Mol Cell Proteomics. 2012 Oct;11(10):1070-83.
15	Phosphoproteome analysis of human liver tissue by long-gradient nanoflow LC coupled with multiple stage MS analysis. Electrophoresis. 2010 Mar;31(6):1080-9.
16	Post-translational modifications of transporters. Pharmacol Ther. 2018 Dec;192:88-99.
17	Protein kinase C affects the internalization and recycling of organic anion transporting polypeptide 1B1. Biochim Biophys Acta. 2015 Oct;1848(10 Pt A):2022-30.
18	Treatment with proteasome inhibitor bortezomib decreases organic anion transporting polypeptide (OATP) 1B3-mediated transport in a substrate-dependent manner. PLoS One. 2017 Nov 6;12(11):e0186924.

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Detail Information of Post-Translational Modifications

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