Gene Gene information from NCBI Gene database.
Entrez ID 8972
Gene name Maltase-glucoamylase
Gene symbol MGAM
Synonyms (NCBI Gene)
MGMGA
Chromosome 7
Chromosome location 7q34
Summary This gene encodes maltase-glucoamylase, which is a brush border membrane enzyme that plays a role in the final steps of digestion of starch. The protein has two catalytic sites identical to those of sucrase-isomaltase, but the proteins are only 59% homolo
miRNA miRNA information provided by mirtarbase database.
81
miRTarBase ID miRNA Experiments Reference
MIRT672536 hsa-miR-3929 HITS-CLIP 23824327
MIRT672537 hsa-miR-4419b HITS-CLIP 23824327
MIRT672535 hsa-miR-4478 HITS-CLIP 23824327
MIRT672534 hsa-miR-5588-3p HITS-CLIP 23824327
MIRT672533 hsa-miR-2114-5p HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
27
GO ID Ontology Definition Evidence Reference
GO:0000025 Process Maltose catabolic process IDA 18036614, 22058037, 27480812
GO:0003824 Function Catalytic activity IEA
GO:0003824 Function Catalytic activity TAS 9446624
GO:0004339 Function Glucan 1,4-alpha-glucosidase activity IEA
GO:0004553 Function Hydrolase activity, hydrolyzing O-glycosyl compounds IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
154360 7043 ENSG00000257335
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
O43451
Protein name Maltase-glucoamylase (Alpha-1,4-glucosidase) (EC 3.2.1.20)
Protein function Alpha-(1,4) exo-glucosidase involved in breakdown of dietary starch oligosaccharides in small intestine. Cleaves the non-reducing alpha-(1,4)-linked glucose residue in linear dextrins with retention of anomeric center stereochemistry (PubMed:125
PDB 2QLY , 2QMJ , 3CTT , 3L4T , 3L4U , 3L4V , 3L4W , 3L4X , 3L4Y , 3L4Z , 3TON , 3TOP
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00088 Trefoil 90 133 Trefoil (P-type) domain Domain
PF16863 NtCtMGAM_N 150 259 N-terminal barrel of NtMGAM and CtMGAM, maltase-glucoamylase Domain
PF01055 Glyco_hydro_31 349 821 Glycosyl hydrolases family 31 Family
PF00088 Trefoil 957 999 Trefoil (P-type) domain Domain
PF16863 NtCtMGAM_N 1014 1127 N-terminal barrel of NtMGAM and CtMGAM, maltase-glucoamylase Domain
PF01055 Glyco_hydro_31 1215 1717 Glycosyl hydrolases family 31 Family
Tissue specificity TISSUE SPECIFICITY: Broadly expressed. Highly expressed in small intestine. Expressed in granulocytes. {ECO:0000269|PubMed:24309898, ECO:0000269|PubMed:9446624}.
Sequence
MARKKLKKFTTLEIVLSVLLLVLFIISIVLIVLLAKESLKSTAPDPGTTGTPDPGTTGTP
DPGTTGTTHARTTGPPDPGTTGTTPVSAECPVVNELERINCIPDQPPTKATCDQRGCCWN
PQGAVSVPWCYYS
KNHSYHVEGNLVNTNAGFTARLKNLPSSPVFGSNVDNVLLTAEYQTS
NRFHFKLTDQTNNRFEVPHEHVQSFSGNAAASLTYQVEISRQPFSIKVTRRSNNRVLFDS
SIGPLLFADQFLQLSTRLP
STNVYGLGEHVHQQYRHDMNWKTWPIFNRDTTPNGNGTNLY
GAQTFFLCLEDASGLSFGVFLMNSNAMEVVLQPAPAITYRTIGGILDFYVFLGNTPEQVV
QEYLELIGRPALPSYWALGFHLSRYEYGTLDNMREVVERNRAAQLPYDVQHADIDYMDER
RDFTYDSVDFKGFPEFVNELHNNGQKLVIIVDPAISNNSSSSKPYGPYDRGSDMKIWVNS
SDGVTPLIGEVWPGQTVFPDYTNPNCAVWWTKEFELFHNQVEFDGIWIDMNEVSNFVDGS
VSGCSTNNLNNPPFTPRILDGYLFCKTLCMDAVQHWGKQYDIHNLYGYSMAVATAEAAKT
VFPNKRSFILTRSTFAGSGKFAAHWLGDNTATWDDLRWSIPGVLEFNLFGIPMVGPDICG
FALDTPEELCRRWMQLGAFYPFSRNHNGQGYKDQDPASFGADSLLLNSSRHYLNIRYTLL
PYLYTLFFRAHSRGDTVARPLLHEFYEDNSTWDVHQQFLWGPGLLITPVLDEGAEKVMAY
VPDAVWYDYETGSQVRWRKQKVEMELPGDKIGLHLRGGYIF
PTQQPNTTTLASRKNPLGL
IIALDENKEAKGELFWDNGETKDTVANKVYLLCEFSVTQNRLEVNISQSTYKDPNNLAFN
EIKILGTEEPSNVTVKHNGVPSQTSPTVTYDSNLKVAIITDIDLLLGEAYTVEWSIKIRD
EEKIDCYPDENGASAENCTARGCIWEASNSSGVPFCYFV
NDLYSVSDVQYNSHGATADIS
LKSSVYANAFPSTPVNPLRLDVTYHKNEMLQFKIYDPNKNRYEVPVPLNIPSMPSSTPEG
QLYDVLIKKNPFGIEIRRKSTGTIIWDSQLLGFTFSDMFIRISTRLP
SKYLYGFGETEHR
SYRRDLEWHTWGMFSRDQPPGYKKNSYGVHPYYMGLEEDGSAHGVLLLNSNAMDVTFQPL
PALTYRTTGGVLDFYVFLGPTPELVTQQYTELIGRPVMVPYWSLGFQLCRYGYQNDSEIA
SLYDEMVAAQIPYDVQYSDIDYMERQLDFTLSPKFAGFPALINRMKADGMRVILILDPAI
SGNETQPYPAFTRGVEDDVFIKYPNDGDIVWGKVWPDFPDVVVNGSLDWDSQVELYRAYV
AFPDFFRNSTAKWWKREIEELYNNPQNPERSLKFDGMWIDMNEPSSFVNGAVSPGCRDAS
LNHPPYMPHLESRDRGLSSKTLCMESQQILPDGSLVQHYNVHNLYGWSQTRPTYEAVQEV
TGQRGVVITRSTFPSSGRWAGHWLGDNTAAWDQLKKSIIGMMEFSLFGISYTGADICGFF
QDAEYEMCVRWMQLGAFYPFSRNHNTIGTRRQDPVSWDVAFVNISRTVLQTRYTLLPYLY
TLMHKAHTEGVTVVRPLLHEFVSDQVTWDIDSQFLLGPAFLVSPVLERNARNVTAYFPRA
RWYDYYTGVDINARGEWKTLPAPLDHINLHVRGGYIL
PWQEPALNTHLSRQKFMGFKIAL
DDEGTAGGWLFWDDGQSIDTYGKGLYYLASFSASQNTMQSHIIFNNYITGTNPLKLGYIE
IWGVGSVPVTSVSISVSGMVITPSFNNDPTTQVLSIDVTDRNISLHNFTSLTWISTL
Sequence length 1857
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Galactose metabolism
Starch and sucrose metabolism
Metabolic pathways
Carbohydrate digestion and absorption
  Digestion of dietary carbohydrate
Neutrophil degranulation
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
7
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Cervical cancer Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Clear cell carcinoma of kidney Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
DILATED CARDIOMYOPATHY GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
GILLES DE LA TOURETTE SYNDROME Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adenocarcinoma Adenocarcinoma BEFREE 31721214
★☆☆☆☆
Found in Text Mining only
Amyotrophic Lateral Sclerosis Amyotrophic Lateral Sclerosis BEFREE 23754387
★☆☆☆☆
Found in Text Mining only
Aortic Aneurysm Abdominal Aortic aneurysm Pubtator 29439675 Associate
★☆☆☆☆
Found in Text Mining only
Becker Muscular Dystrophy Becker Muscular Dystrophy BEFREE 29778277
★☆☆☆☆
Found in Text Mining only
Behcet Syndrome Behcet disease Pubtator 34040049 Associate
★☆☆☆☆
Found in Text Mining only
Brachydactyly type C Brachydactyly BEFREE 30594450
★☆☆☆☆
Found in Text Mining only
Breast Carcinoma Breast Carcinoma BEFREE 30996822
★☆☆☆☆
Found in Text Mining only
Bronchopulmonary Dysplasia Bronchopulmonary dysplasia Pubtator 40244055 Associate
★☆☆☆☆
Found in Text Mining only
Cardiomyopathies Cardiomyopathy BEFREE 12409258, 14567965, 20033064, 21232767, 3288378
★☆☆☆☆
Found in Text Mining only
Cardiomyopathy, Familial Idiopathic Cardiomyopathy GWASCAT_DG 29495422
★☆☆☆☆
Found in Text Mining only