Identification |
HMDB Protein ID
| CDBP02474 |
Secondary Accession Numbers
| Not Available |
Name
| Alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B |
Description
| Not Available |
Synonyms
|
- GlcNAc-T IVb
- GnT-IVb
- N-acetylglucosaminyltransferase IVb
- N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase IVb
- UDP-N-acetylglucosamine: alpha-1,3-D-mannoside beta-1,4-N-acetylglucosaminyltransferase IVb
|
Gene Name
| MGAT4B |
Protein Type
| Enzyme |
Biological Properties |
General Function
| Involved in transferase activity, transferring hexosyl groups |
Specific Function
| Glycosyltransferase that participates in the transfer of N-acetylglucosamine (GlcNAc) to the core mannose residues of N-linked glycans. Catalyzes the formation of the GlcNAcbeta1-4 branch on the GlcNAcbeta1-2Manalpha1-3 arm of the core structure of N-linked glycans. Essential for the production of tri- and tetra-antennary N-linked sugar chains. Has lower affinities for donors or acceptors than MGAT4A, suggesting that, under physiological conditions, it is not the main contributor in N-glycan biosynthesis.
|
GO Classification
|
Biological Process |
N-glycan processing |
post-translational protein modification |
protein N-linked glycosylation via asparagine |
Cellular Component |
integral to membrane |
Golgi membrane |
Component |
membrane |
cell part |
Function |
catalytic activity |
transferase activity |
transferase activity, transferring hexosyl groups |
transferase activity, transferring glycosyl groups |
Molecular Function |
metal ion binding |
alpha-1,3-mannosylglycoprotein 4-beta-N-acetylglucosaminyltransferase activity |
Process |
metabolic process |
primary metabolic process |
carbohydrate metabolic process |
|
Cellular Location
|
- Golgi apparatus membrane
- Single-pass type II membrane protein
|
Pathways
|
Name | SMPDB/Pathwhiz | KEGG | protein glycosylation | Not Available | Not Available | N-Glycan biosynthesis | Not Available | |
|
Gene Properties |
Chromosome Location
| 5 |
Locus
| 5q35 |
SNPs
| MGAT4B |
Gene Sequence
|
>1647 bp
ATGAGGCTCCGCAATGGCACCTTCCTGACGCTGCTGCTCTTCTGCCTGTGCGCCTTCCTC
TCGCTGTCCTGGTACGCGGCACTCAGCGGCCAGAAAGGCGACGTTGTGGACGTTTACCAG
CGGGAGTTCCTGGCGCTGCGCGATCGGTTGCACGCAGCTGAGCAGGAGAGCCTCAAGCGC
TCCAAGGAGCTCAACCTGGTGCTGGACGAGATCAAGAGGGCCGTGTCAGAAAGGCAGGCG
CTGCGAGACGGAGACGGCAATCGCACCTGGGGCCGCCTAACAGAGGACCCCCGATTGAAG
CCGTGGAACGGCTCACACCGGCACGTGCTGCACCTGCCCACCGTCTTCCATCACCTGCCA
CACCTGCTGGCCAAGGAGAGCAGTCTGCAGCCCGCGGTGCGCGTGGGCCAGGGCCGCACC
GGAGTGTCGGTGGTGATGGGCATCCCGAGCGTGCGGCGCGAGGTGCACTCGTACCTGACT
GACACTCTGCACTCGCTCATCTCCGAGCTGAGCCCGCAGGAGAAGGAGGACTCGGTCATC
GTGGTGCTGATCGCCGAGACTGACTCACAGTACACTTCGGCAGTGACAGAGAACATCAAG
GCCTTGTTCCCCACGGAGATCCATTCTGGGCTCCTGGAGGTCATCTCACCCTCCCCCCAC
TTCTACCCTGACTTCTCCCGCCTCCGAGAGTCCTTTGGGGACCCCAAGGAGAGAGTCAGG
TGGAGGACCAAACAGAACCTCGATTACTGCTTCCTCATGATGTACGCGCAGTCCAAAGGC
ATCTACTACGTGCAGCTGGAGGATGACATCGTGGCCAAGCCCAACTACCTGAGCACCATG
AAGAACTTTGCACTGCAGCAGCCTTCAGAGGACTGGATGATCCTGGAGTTCTCCCAGCTG
GGCTTCATTGGTAAGATGTTCAAGTCGCTGGACCTGAGCCTGATTGTAGAGTTCATTCTC
ATGTTCTACCGGGACAAGCCCATCGACTGGCTCCTGGACCATATTCTGTGGGTGAAAGTC
TGCAACCCCGAGAAGGATGCGAAGCACTGTGACCGGCAGAAAGCCAACCTGCGGATCCGC
TTCAAACCGTCCCTCTTCCAGCACGTGGGCACTCACTCCTCGCTGGCTGGCAAGATCCAG
AAACTGAAGGACAAAGACTTTGGAAAGCAGGCGCTGCGGAAGGAGCATGTGAACCCGCCA
GCAGAGGTGAGCACGAGCCTGAAGACATACCAGCACTTCACCCTGGAGAAAGCCTACCTG
CGCGAGGACTTCTTCTGGGCCTTCACCCCTGCCGCGGGGGACTTCATCCGCTTCCGCTTC
TTCCAACCTCTAAGACTGGAGCGGTTCTTCTTCCGCAGTGGGAACATCGAGCACCCGGAG
GACAAGCTCTTCAACACGTCTGTGGAGGTGCTGCCCTTCGACAACCCTCAGTCAGACAAG
GAGGCCCTGCAGGAGGGCCGCACCGCCACCCTCCGGTACCCTCGGAGCCCCGACGGCTAC
CTCCAGATCGGCTCCTTCTACAAGGGAGTGGCAGAGGGAGAGGTGGACCCAGCCTTCGGC
CCTCTGGAAGCACTGCGCCTCTCGATCCAGACGGACTCCCCTGTGTGGGTGATTCTGAGC
GAGATCTTCCTGAAAAAGGCCGACTAA
|
Protein Properties |
Number of Residues
| 548 |
Molecular Weight
| 63197.845 |
Theoretical pI
| 7.873 |
Pfam Domain Function
|
|
Signals
|
Not Available
|
Transmembrane Regions
|
Not Available
|
Protein Sequence
|
>Alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B
MRLRNGTFLTLLLFCLCAFLSLSWYAALSGQKGDVVDVYQREFLALRDRLHAAEQESLKR
SKELNLVLDEIKRAVSERQALRDGDGNRTWGRLTEDPRLKPWNGSHRHVLHLPTVFHHLP
HLLAKESSLQPAVRVGQGRTGVSVVMGIPSVRREVHSYLTDTLHSLISELSPQEKEDSVI
VVLIAETDSQYTSAVTENIKALFPTEIHSGLLEVISPSPHFYPDFSRLRESFGDPKERVR
WRTKQNLDYCFLMMYAQSKGIYYVQLEDDIVAKPNYLSTMKNFALQQPSEDWMILEFSQL
GFIGKMFKSLDLSLIVEFILMFYRDKPIDWLLDHILWVKVCNPEKDAKHCDRQKANLRIR
FKPSLFQHVGTHSSLAGKIQKLKDKDFGKQALRKEHVNPPAEVSTSLKTYQHFTLEKAYL
REDFFWAFTPAAGDFIRFRFFQPLRLERFFFRSGNIEHPEDKLFNTSVEVLPFDNPQSDK
EALQEGRTATLRYPRSPDGYLQIGSFYKGVAEGEVDPAFGPLEALRLSIQTDSPVWVILS
EIFLKKAD
|
External Links |
GenBank ID Protein
| 5748487 |
UniProtKB/Swiss-Prot ID
| Q9UQ53 |
UniProtKB/Swiss-Prot Entry Name
| MGT4B_HUMAN |
PDB IDs
|
Not Available |
GenBank Gene ID
| AB000624 |
GeneCard ID
| MGAT4B |
GenAtlas ID
| MGAT4B |
HGNC ID
| HGNC:7048 |
References |
General References
| Not Available |