LAMC2

laminin subunit gamma 2

Summary

Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins, composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively), have a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. Several isoforms of each chain have been described. Different alpha, beta and gamma chain isomers combine to give rise to different heterotrimeric laminin isoforms which are designated by Arabic numerals in the order of their discovery, i.e. alpha1beta1gamma1 heterotrimer is laminin 1. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, presumably reflecting diverse functions in vivo. This gene encodes the gamma chain isoform laminin, gamma 2. The gamma 2 chain, formerly thought to be a truncated version of beta chain (B2t), is highly homologous to the gamma 1 chain; however, it lacks domain VI, and domains V, IV and III are shorter. It is expressed in several fetal tissues but differently from gamma 1, and is specifically localized to epithelial cells in skin, lung and kidney. The gamma 2 chain together with alpha 3 and beta 3 chains constitute laminin 5 (earlier known as kalinin), which is an integral part of the anchoring filaments that connect epithelial cells to the underlying basement membrane. The epithelium-specific expression of the gamma 2 chain implied its role as an epithelium attachment molecule, and mutations in this gene have been associated with junctional epidermolysis bullosa, a skin disease characterized by blisters due to disruption of the epidermal-dermal junction. Two transcript variants resulting from alternative splicing of the 3' terminal exon, and encoding different isoforms of gamma 2 chain, have been described. The two variants are differentially expressed in embryonic tissues, however, the biological significance of the two forms is not known. Transcript variants utilizing alternative polyA_signal have also been noted in literature. [provided by RefSeq, Aug 2011]

Known Variants961 total

rsidPosition (GRCh37)AllelesClassClinVar
rs7592178991:183,155,211G/Auncertain significance
rs5742619461:183,155,226T/Cuncertain significance
rs22765441:183,155,228C/Abenign
rs7740262251:183,155,232G/Cuncertain significance
rs22765431:183,155,305A/Gbenign
rs8860456241:183,155,348T/Guncertain significance
rs22765421:183,155,399G/Abenign
rs12248298741:183,155,409G/Auncertain significance
rs5675817421:183,155,449C/Tuncertain significance
rs771334721:183,155,450C/Gbenign
rs7624305221:183,155,473C/Tuncertain significance
rs6845271:183,155,482A/Cbenign
rs8860456251:183,155,488A/Gconflicting classifications of pathogenicity
rs15532621991:183,155,489T/Cpathogenic
rs14798082031:183,155,490G/Tlikely pathogenic
rs9889662011:183,155,493T/Clikely benign
rs3744317981:183,155,496G/Tlikely benign
rs25258884881:183,155,501G/Alikely pathogenic
rs5760760771:183,155,506G/Alikely benign
rs14149277601:183,155,508C/Tlikely benign
rs7726188871:183,155,517C/Tlikely benign
rs13525170621:183,155,523C/Tlikely benign
rs7693849321:183,155,526G/Clikely benign
rs7751481931:183,155,529C/Glikely benign
rs7510524891:183,155,535G/Tconflicting classifications of pathogenicity
rs7674564371:183,155,538C/Tlikely benign
rs3712963011:183,155,545C/Tuncertain significance
rs21021547311:183,155,547G/Alikely benign
rs25258897091:183,155,553C/Tlikely benign
rs3765126051:183,155,556C/Tconflicting classifications of pathogenicity
rs7551922611:183,155,559G/Alikely benign
rs16581530971:183,155,561G/Auncertain significance
rs21021547921:183,155,562G/Alikely benign
rs7791919641:183,155,565A/Guncertain significance
rs7482576881:183,155,573C/Tlikely benign
rs16581537811:183,155,574G/Tlikely benign
rs25258898491:183,155,576C/Tlikely benign
rs7783245211:183,155,581A/Glikely benign
rs66788881:183,155,700C/Abenign
rs614180381:183,155,717C/Abenign
rs67030541:183,155,778A/Cbenign
rs37686101:183,164,473G/Aregulatory region variant
rs10287711:183,170,948A/Cintron variant
rs75560641:183,173,372C/G
rs5254101:183,176,430A/T
rs9723008261:183,176,998T/Clikely benign
rs7816005491:183,177,000T/Clikely benign
rs2013311301:183,177,007C/Tlikely benign
rs21021962001:183,177,008C/Tlikely benign
rs21021962041:183,177,009T/Clikely benign
rs780564731:183,177,010C/Tconflicting classifications of pathogenicity
rs25259753871:183,177,011C/Tlikely benign
rs21021962101:183,177,012C/Tlikely benign
rs7716138051:183,177,014A/Cpathogenic
rs7725382561:183,177,016T/Cuncertain significance
rs7607526771:183,177,017C/Alikely benign
rs12497292831:183,177,023T/Clikely benign
rs8682772531:183,177,028A/Guncertain significance
rs1510606431:183,177,032G/Alikely benign
rs25259757651:183,177,050C/Alikely benign
rs21021963501:183,177,059G/Alikely benign
rs16589462801:183,177,062A/Glikely benign
rs13338764601:183,177,069A/Guncertain significance
rs14658727141:183,177,071A/Glikely benign
rs21021964031:183,177,072C/Tpathogenic
rs5692916021:183,177,083T/Clikely benign
rs25259763771:183,177,105A/Guncertain significance
rs21021965311:183,177,107T/Clikely benign
rs14372657341:183,177,116T/Clikely benign
rs25259766721:183,177,131C/Alikely pathogenic
rs1463251691:183,177,132G/Aconflicting classifications of pathogenicity
rs25259768601:183,177,137G/Alikely benign
rs16589508951:183,177,155C/Alikely pathogenic
rs21021966361:183,177,158G/Tlikely benign
rs25259770481:183,177,168A/Guncertain significance
rs25259772221:183,177,185C/Tlikely benign
rs25259772351:183,177,188C/Alikely pathogenic
rs10453405141:183,177,190A/Guncertain significance
rs1478862281:183,177,191T/Clikely benign
rs25259773831:183,177,200C/Alikely benign
rs7595094431:183,177,205G/Asplice region variantpathogenic
rs7750938931:183,177,213A/Glikely benign
rs21021968401:183,177,214A/Glikely benign
rs6473471:183,177,218G/Abenign
rs7517056721:183,177,220G/Alikely benign
rs618091491:183,177,243A/Gbenign
rs1139492871:183,177,257A/Gbenign
rs6357961:183,177,454T/Cbenign
rs1837080461:183,177,884G/Aregulatory region variant
rs168605371:183,180,260A/Gregulatory region variant
rs22749821:183,184,428C/Tbenign
rs22749811:183,184,524C/Tbenign
rs25260059861:183,184,568C/Tlikely benign
rs3682691171:183,184,571T/Clikely benign
rs120858831:183,184,573C/Tlikely benign
rs7745842891:183,184,577G/Tlikely benign
rs25260061471:183,184,587G/Tlikely pathogenic
rs7619555221:183,184,592T/Clikely benign
rs803566831:183,184,602C/Tstop gainedpathogenic
rs16592223711:183,184,607T/Alikely pathogenic

Showing 100 of 961 variants. Use the SNP search for the full list.

Gene information from NCBI Gene. Variant classifications from ClinVar.