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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:ST6GAL1

Protein Summary

check button Gene summary
Gene name: ST6GAL1
ASpdb.0 ID: 6480
Gene
Gene symbol

ST6GAL1

Gene ID

6480

Gene nameST6 beta-galactoside alpha-2,6-sialyltransferase 1
SynonymsCDw75|SIAT1|ST6GalI|ST6N
Cytomap

3q27.3

Type of geneprotein-coding
Descriptionbeta-galactoside alpha-2,6-sialyltransferase 1B-cell antigen CD75CMP-N-acetylneuraminate beta-galactosamide alpha-2,6-sialyltransferaseCMP-N-acetylneuraminate-beta-galactosamide-alpha-2,6-sialyltransferase 1ST6 N-acetylgalactosaminide alpha-2,6-sialyl
Modification date20240416
UniProtAcc

P15907


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneST6GAL1

GO:0000139

Golgi membrane

20378551

GeneST6GAL1

GO:0003835

beta-galactoside alpha-2,6-sialyltransferase activity

23999306

GeneST6GAL1

GO:0006054

N-acetylneuraminate metabolic process

23999306

GeneST6GAL1

GO:0008373

sialyltransferase activity

21081508

GeneST6GAL1

GO:0018279

protein N-linked glycosylation via asparagine

23999306

GeneST6GAL1

GO:0042803

protein homodimerization activity

20378551

GeneST6GAL1

GO:0097503

sialylation

23999306



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P15907-1P15907-1_4js1_A.pdb4JS1X-ray2.09A89406

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P15907ST6GAL1P15907-1P15907-24061751231Deletionnonenone00

check buttonMultiple sequence alignment of our canonical and alternatively spliced ST6GAL1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of ST6GAL1
UniProt-idENSGENSTENSP
P15907-1ENSG00000073849.16ENST00000169298.8ENSP00000169298.3
P15907-1ENSG00000073849.16ENST00000416235.6ENSP00000414504.2
P15907-1ENSG00000073849.16ENST00000448044.5ENSP00000389337.1
P15907-1ENSG00000073849.16ENST00000676633.1ENSP00000504448.1
P15907-1ENSG00000073849.16ENST00000677292.1ENSP00000503457.1
P15907-2ENSG00000073849.16ENST00000457772.6ENSP00000412221.2

UniProt-idNM IDNP ID
P15907-1NM_003032.2NP_003023.1
P15907-1NM_173216.2NP_775323.1
P15907-2NM_173217.2NP_775324.1

check buttonAmino acid sequences of our canonical and alternatively spliced ST6GAL1
accession_idProtein sequence
P15907-1MIHTNLKKKFSCCVLVFLLFAVICVWKEKKKGSYYDSFKLQTKEFQVLKSLGKLAMGSDSQSVSSSSTQDPHRGRQTLGSLRGLAKAKPE
ASFQVWNKDSSSKNLIPRLQKIWKNYLSMNKYKVSYKGPGPGIKFSAEALRCHLRDHVNVSMVEVTDFPFNTSEWEGYLPKESIRTKAGP
WGRCAVVSSAGSLKSSQLGREIDDHDAVLRFNGAPTANFQQDVGTKTTIRLMNSQLVTTEKRFLKDSLYNEGILIVWDPSVYHSDIPKWY
QNPDYNFFNNYKTYRKLHPNQPFYILKPQMPWELWDILQEISPEEIQPNPPSSGMLGIIIMMTLCDQVDIYEFLPSKRKTDVCYYYQKFF
P15907-2MNSQLVTTEKRFLKDSLYNEGILIVWDPSVYHSDIPKWYQNPDYNFFNNYKTYRKLHPNQPFYILKPQMPWELWDILQEISPEEIQPNPP

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
ST6GAL1 (go to UniProt):P15907

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P15907Topological domain19Note=CytoplasmicType=Deletion;Start=1;End=231
P15907Transmembrane1026Note=Helical%3B Signal-anchor for type II membrane protein;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1;End=231
P15907Topological domain27406Note=Lumenal;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1;End=231


Gene Isoform Structures and Expression Levels for ST6GAL1

check buttonGene structures of our canonical and alternative spliced genes of ST6GAL1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of ST6GAL1

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of P15907-1
3D view using mol* of P15907-2


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of P15907-1
all structure
pLDDT distribution across the protein length of P15907-2
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of P15907-1
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
P15907-11.0391861.023554.9740.5590.7560.9490.4161.1370.3660.46121,122,186,188,189,190,191,192,211,212,213,215,23
3,235,236,240,242,246,248,249,257,259,274,275,322,
323,324,328,342,343,345,349,350,352,354,356,357,36
3,364,365,367,368,369,370,372,376
P15907-20.98950.954363.580.5680.6960.8690.161.1650.1370.6391,92,93,111,112,114,117,118,119,121,122,123,124,1
32,133,134,136,137,138,139,141,145

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of P15907-1_P15907-1_4js1_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P15907-1_4js1_A_P15907-2.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P15907-1_P15907-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P15907-1_vs_P15907-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P15907-1_vs_P15907-2.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to ST6GAL1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions

Related Diseases to ST6GAL1


check button Previous studies relating to the alternative splicing of ST6GAL1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in ST6GAL1


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance
P15907P15907-1ST6GAL1single nucleotide variantp.Asp157HisUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Asp157HisUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Thr397IleUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Thr397IleUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Thr333AlaUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Thr333AlaUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Pro71LeuUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Pro71LeuUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.His263ArgUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.His263ArgUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Asn250HisUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Asn250HisUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Ile23ThrUncertain significance
P15907P15907-1ST6GAL1single nucleotide variantp.Ile23ThrUncertain significance