CD320 — 223 ClinVar variants

All ClinVar germline CD320 variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 110 flagged for review →

2 Conflicting · 42 Benign · 5 Benign/Likely benign · 55 Likely benign · 119 Uncertain significance

Full CD320 gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions

⚑ Evidence disagreements 110

Variants where the independent computational evidence doesn't line up with the clinical picture — a QC signal for a second look, not a reclassification.

Predictors agree, ClinVar conflicts 2

ClinVar submitters conflict, but the independent predictors unanimously agree — a QC review flag, not a reclassification.

Predictors lean, ClinVar uncertain 62

ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification.

Predictors split 46

The independent predictors disagree with each other — read with care.

All CD320 variants

Conflicting classifications of pathogenicity 2

  • p.Gly3Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Val113Ile Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠

Benign 42

Benign/Likely benign 5

  • c.143-11C>T Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect
  • p.Glu257Lys Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu253= Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro174= Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser280= Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect

Likely benign 55

  • p.Asn126= Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect
  • c.142+10G>A Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.143-4G>A Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.143-5C>T Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.143-9A>G Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.268+12C>T Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.268+15C>T Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.268+35G>A Single submitter
  • c.269-13C>A Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.269-4C>G Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.502+12C>T Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.502+13G>C Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.503-135del Single submitter
  • c.503-155_503-154del Single submitter
  • c.503-17G>T Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.707-12T>C Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.707-19_707-18del Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ala196= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ala219= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ala236= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ala236Val Single submitter
  • p.Arg125His Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Asp153= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Cys152= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Cys67= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Cys80= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Gln96= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Gly135= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Gly220= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ile172= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ile172Thr Single submitter
  • p.Leu106= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu173= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu205= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu249Phe Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Leu25= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu27Phe Single submitter ⚠
  • p.Leu70= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro102= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro159= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro209= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro37= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser162= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser2= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser207= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser210= Single submitter
  • p.Ser241Asn Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr111= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr149Met Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr227= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr42= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr95= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Val185= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Val211= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Gly263= No assertion criteria CD320-related disorder

Uncertain significance 119

  • p.Arg129Leu Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Arg138Ser Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Arg254Gln Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Arg258His Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asn170Ser Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp143Asn Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp160Asn Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly166Val Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly30Arg Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly4Ala Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro104Ser Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro184Leu Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro93Ser Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ser117Phe Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr14Ile Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr169Ile Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr244Ile Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr71Ser Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Trp12Leu Multiple submitters methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • c.142+4A>G Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.268+4A>C Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • c.502+3A>G Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ala11Glu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala11Pro Single submitter ⚠
  • p.Ala11Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala16Thr Single submitter ⚠
  • p.Ala196Ser Single submitter ⚠
  • p.Ala219Ser Single submitter ⚠
  • p.Ala233Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala267Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala35Thr Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala44Thr Single submitter ⚠
  • p.Ala46Pro Single submitter ⚠
  • p.Ala46Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala47Pro Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ala47Thr Single submitter ⚠
  • p.Ala7Val Single submitter ⚠
  • p.Arg125Cys Single submitter ⚠
  • p.Arg129His Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Arg138Pro Single submitter ⚠
  • p.Arg151Cys Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Arg254= Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Arg254Ter Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Arg260His Single submitter ⚠
  • p.Arg90Lys Single submitter ⚠
  • p.Asn195Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asn213Lys Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asn213Thr Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp115Gly Single submitter ⚠
  • p.Asp121Glu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp160Tyr Single submitter ⚠
  • p.Asp163Asn Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp75Glu Single submitter ⚠
  • p.Asp77Asn Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Asp82Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Cys145Phe Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Cys158Tyr Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gln45Glu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gln60Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gln60Ter Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Glu164Lys Single submitter ⚠
  • p.Glu32Asp Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Glu88_Cys89insGlu Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Gly105Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly112Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly119Glu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly119Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly135Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly154Ser Single submitter ⚠
  • p.Gly168Arg Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly200Val Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly212Arg Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly212Trp Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly26Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly26Val Single submitter ⚠
  • p.Gly48Arg Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Gly65Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ile91Val Single submitter ⚠
  • p.Leu124Pro Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Leu133Val Single submitter ⚠
  • p.Leu148Phe Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Leu24_Leu25dup Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Leu250Trp Single submitter ⚠
  • p.Leu259Phe Single submitter ⚠
  • p.Leu25Phe Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Leu66fs Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Met181Ile Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Met1Ile Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Pro101Arg Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro102Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro109Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro174Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro56Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro56Ser Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Pro69Thr Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Ser114Gly Single submitter ⚠
  • p.Ser216Tyr Single submitter ⚠
  • p.Ser280Leu Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ser2Ile Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Ser36Arg Single submitter ⚠
  • p.Ser39Ala Single submitter ⚠
  • p.Ser53Leu Single submitter ⚠
  • p.Ser81Asn Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr140Met Single submitter ⚠
  • p.Thr14Lys Single submitter ⚠
  • p.Thr191_Val208del Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr198Ile Single submitter ⚠
  • p.Thr227Ala Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr227Pro Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr42Ala Single submitter ⚠
  • p.Thr42Ile Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Thr57fs Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Thr63Ala Single submitter ⚠
  • p.Tyr229His Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Val185fs Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Val208_Pro209insThrSerLeuArgAsnAlaThrThrMetGlyProProValThrLeuGluSerVal Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Val208del Single submitter methylmalonic acidemia due to transcobalamin receptor defect
  • p.Val68Met Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠
  • p.Val9Phe Single submitter methylmalonic acidemia due to transcobalamin receptor defect ⚠