Gene Gene information from NCBI Gene database.
Entrez ID 2651
Gene name Glucosaminyl (N-acetyl) transferase 2 (I blood group)
Gene symbol GCNT2
Synonyms (NCBI Gene)
CCATCTRCT13GCNT2CGCNT5IGNTIINACGT1NAGCT1ULG3bA360O19.2bA421M1.1
Chromosome 6
Chromosome location 6p24.3-p24.2
Summary This gene encodes the enzyme responsible for formation of the blood group I antigen. The i and I antigens are distinguished by linear and branched poly-N-acetyllactosaminoglycans, respectively. The encoded protein is the I-branching enzyme, a beta-1,6-N-a
SNPs SNP information provided by dbSNP.
9
SNP ID Visualize variation Clinical significance Consequence
rs55940927 G>A Pathogenic Coding sequence variant, missense variant, genic downstream transcript variant
rs56141211 G>A Pathogenic Coding sequence variant, missense variant, genic downstream transcript variant
rs137853339 G>A,C Pathogenic Missense variant, non coding transcript variant, genic upstream transcript variant, coding sequence variant
rs137853340 G>A Pathogenic Missense variant, non coding transcript variant, genic upstream transcript variant, coding sequence variant
rs786205577 A>G Likely-pathogenic Missense variant, genic downstream transcript variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
156
miRTarBase ID miRNA Experiments Reference
MIRT016749 hsa-miR-335-5p Microarray 18185580
MIRT021899 hsa-miR-128-3p Microarray 17612493
MIRT027404 hsa-miR-98-5p Microarray 19088304
MIRT028842 hsa-miR-26b-5p Microarray 19088304
MIRT1014953 hsa-miR-1236 CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
28
GO ID Ontology Definition Evidence Reference
GO:0000139 Component Golgi membrane IEA
GO:0005515 Function Protein binding IPI 28514442, 32296183, 33961781
GO:0005794 Component Golgi apparatus IEA
GO:0006024 Process Glycosaminoglycan biosynthetic process TAS 8449405
GO:0006486 Process Protein glycosylation IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
600429 4204 ENSG00000111846
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q8N0V5
Protein name N-acetyllactosaminide beta-1,6-N-acetylglucosaminyl-transferase (N-acetylglucosaminyltransferase) (EC 2.4.1.150) (I-branching enzyme) (IGNT)
Protein function Branching enzyme that converts linear into branched poly-N-acetyllactosaminoglycans. Introduces the blood group I antigen during embryonic development. It is closely associated with the development and maturation of erythroid cells. {ECO:0000269
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF02485 Branch 97 358 Core-2/I-Branching enzyme Family
Tissue specificity TISSUE SPECIFICITY: [Isoform B]: Expressed in lens epithelium cells. {ECO:0000269|PubMed:12424189}.; TISSUE SPECIFICITY: [Isoform C]: Expressed in reticulocytes. {ECO:0000269|PubMed:12468428}.
Sequence
Sequence length 402
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG 
  Glycosphingolipid biosynthesis - lacto and neolacto series
Metabolic pathways
 
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
156
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
ADULT i BLOOD GROUP PHENOTYPE Pathogenic rs137853339, rs137853340 RCV000009702
RCV000009703
Cataract 13 with adult I phenotype Pathogenic; Likely pathogenic rs185805779, rs2127444957, rs56141211, rs756999080, rs949335475, rs1184095219, rs148284531 RCV001376182
RCV001957678
RCV000009699
RCV003627553
RCV000692516
RCV000692059
RCV001047410
Developmental cataract Pathogenic; Likely pathogenic rs1114167313, rs1114167314 RCV000490781
RCV000490793
GCNT2-related disorder Pathogenic rs185805779 RCV004756226
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Acute myeloid leukemia Likely benign rs77616261 RCV005914733
Adult i blood group with or without congenital cataract Uncertain significance; Likely benign rs754179557, rs139647870, rs886060912, rs781422504, rs886060900, rs886060909, rs9460953 RCV000405183
RCV000311882
RCV000389677
RCV000341650
RCV000387849
RCV000359240
RCV000406508
Blood group, I system Uncertain significance; Benign; Conflicting classifications of pathogenicity; Likely benign rs1085307067, rs2230906, rs78667015, rs12660274, rs886060901, rs886060902, rs564517, rs35318346, rs139955928, rs2230907, rs113642669, rs762078028, rs886060904, rs886060905, rs80071169
View all (72 more)
RCV000490409
RCV000390728
RCV001151220
RCV000333988
RCV000329871
RCV000280412
RCV000335478
RCV000312665
RCV000263227
RCV000318386
RCV000324099
RCV000384400
RCV000290032
RCV000344767
RCV000295835
RCV000353939
RCV000384021
RCV000371490
RCV000286428
RCV000307868
RCV000367394
RCV000354459
RCV000259601
RCV000378698
RCV000405963
RCV000395314
RCV000295434
RCV000375015
RCV000283024
RCV000397293
RCV000350717
RCV000329431
RCV000289554
RCV000325898
RCV000274647
RCV000375081
RCV000347397
RCV000404839
RCV000362677
RCV000284082
RCV000320397
RCV000357275
RCV000299116
RCV000268567
RCV000323723
RCV000265046
RCV000348419
RCV000280612
RCV001154177
RCV001154178
RCV001154179
RCV001154180
RCV001155015
RCV001155016
RCV001156674
RCV001156675
RCV001156676
RCV001156677
RCV001151216
RCV001151217
RCV001151221
RCV001154290
RCV001154291
RCV001154292
RCV001155125
RCV001155126
RCV001155127
RCV001156790
RCV001156791
RCV001156792
RCV001156793
RCV001151343
RCV001151344
RCV001151345
RCV001154384
RCV001154385
RCV001154386
RCV001154387
RCV001154388
RCV001155227
RCV001155228
RCV001155229
RCV001155230
RCV001156886
RCV001156887
RCV001151218
RCV001151219
Clear cell carcinoma of kidney Likely benign rs77616261 RCV005914735
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Breast Neoplasms Associate 26678556
Cataract Associate 21541272, 26622071, 27609212, 28839118, 29914532
Hypoxia Inhibit 36174713
Leukemia Lymphoma Adult T Cell Associate 29794791
Lymphoma T Cell Cutaneous Associate 29794791
Melanoma Associate 36174713
Mycosis Fungoides Associate 29794791
Neoplasms Associate 29794791
Nerve Degeneration Inhibit 24866057
Prostatic Neoplasms Associate 26678556